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Papers by Narendra Varma penumatsa

World Journal of Dentistry

Aim: The aim of the current study was to appraise the efficiency of two different dentin biomodif... more Aim: The aim of the current study was to appraise the efficiency of two different dentin biomodifiers on the shear bond strength of the dentin-resin interface. Materials and methods: A total of 60 human deciduous molars without dental caries were utilized for the purpose of this research. Individual teeth were subjected to mounting on self-curing acrylic resin, uncovering them 1 mm beneath the cementoenamel junction (CEJ). Preparation of class V cavities was performed on the buccal surface of the teeth with the occlusal edge in the enamel while the cervical borders were positioned 0.75 mm apical to the CEJ. After the cavity preparations were made using consistent proportions, the specimens were allocated at random to one of the three groups (n = 20)-the Group I-control group, Group II-casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), and group III-chitosan nanoparticles (CNPs). The universal single-bond adhesive system was subjected to application on the specimens. Each of the finished specimens was tested for its shear bond strength by employing the universal testing machine. Results: Casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) group at 161.32 ± 5.220 showed the highest shear bond strength, in pursuit by the CNPs group at 158.18 ± 5.148 and finally, the control group at 124.98 ± 7.246. A statistically noteworthy dissimilarity was noted among the three groups. On multiple contrast assessments of dentin biomodifiers on shear bond strength, a greatly significant disparity was noted amid the control vs CPP-ACP and control vs CNPs (p < 0.001). Conclusion: Amid the confines of the limitations that this research had, it can be inferred that the utility of dentin biomodifiers like CPP-ACP as well as CNPs have the potential to improve the enduring steadiness of the dentin bond, thus improving the durability of the tooth-restoration composite. However, the CPP-ACP cohort exhibited somewhat improved shear bond strength vs CNPs. Clinical significance: Multiple dentin biomodifiers are presently accessible to decrease the degradation of collagen by enzymes as well as enhance their mechanical strength and steadiness. Biomodifying dentin utilizes inhibiting agents for matrix metalloproteinases (MMPs) in addition to the use of dentinal collagen cross-linkers. Such biomodification of dentin seems to be a competent move toward the stabilization of the resin-dentin bond.

Journal of International Oral Health, 2019

Aims and Objectives: Health-care professionals have an important role in health education for the... more Aims and Objectives: Health-care professionals have an important role in health education for their patients, families, and friends also at the community levels. However, understanding their own behavior toward their oral health is more important for the oral health educators who are also health-care professionals. Assessment and practice of oral hygiene status among health-care professionals working in King Khalid Hospital, Al-Kharj, Riyadh, Kingdom of Saudi Arabia was the aim of the study. Materials and Methods: A study was carried out with the aid of specially designed questionnaire consisting of details regarding demographic variables and oral hygiene practice among the health-care workers (HCWs). Convenience samples were selected and preformed questionnaire was given and oral examination was conducted on 267 male HCWs and 164 female HCWs. Data were analyzed using the Statistical Package of the Social Sciences (SPSS) software, version 20, to perform chi-square test and analysis of variance. Results: Among 431 HCWs, 267 males and 164 females participated. A total of 302 people told they brush once daily and it was significant among age group. Mean calculus (0.82) was more among the participants aged >50 years. Mean oral hygiene index-simplified (2.23) was more among those aged >50 years. Mean debris (1.40) was more among >50 years and was statistically significant. Conclusion: HCWs showed that their oral hygiene status was fair. Awareness programs must be conducted frequently to boost up the oral self-hygiene practices among them for many good reasons.

Journal of Pharmacy And Bioallied Sciences, 2015

To determine and compare the potential difference of nickel release from three different orthodon... more To determine and compare the potential difference of nickel release from three different orthodontic brackets, in different artificial pH, in different time intervals. Twenty-seven samples of three different orthodontic brackets were selected and grouped as 1, 2, and 3. Each group was divided into three subgroups depending on the type of orthodontic brackets, salivary pH and the time interval. The Nickel release from each subgroup were analyzed by using inductively coupled plasma-Atomic Emission Spectrophotometer (Perkin Elmer, Optima 2100 DV, USA) model. Quantitative analysis of nickel was performed three times, and the mean value was used as result. ANOVA (F-test) was used to test the significant difference among the groups at 0.05 level of significance (P &lt; 0.05). The descriptive method of statistics was used to calculate the mean, standard deviation, minimum and maximum. SPSS 18 software ((SPSS.Ltd, Quarry bay, Hong Kong, PASW-statistics 18) was used to analyze the study. The analysis shows a significant difference between three groups. The study shows that the nickel releases from the recycled stainless steel brackets have the highest at all 4.2 pH except in 120 h. The study result shows that the nickel release from the recycled stainless steel brackets is highest. Metal slot ceramic bracket release significantly less nickel. So, recycled stainless steel brackets should not be used for nickel allergic patients. Metal slot ceramic brackets are advisable.

Kathmandu University medical journal (KUMJ)

Background Dental wastes are materials that have been utilized in dental clinics, which are no lo... more Background Dental wastes are materials that have been utilized in dental clinics, which are no longer wanted for use and therefore discarded. Improper disposal of these dental wastes can cause harm to the dentist, the people in immediate vicinity of the dentist. Objective The present study was conducted to assess the knowledge and practices regarding Dental waste management among private practitioners. Method The study population included 186 private practitioners in three districts of Karnataka (Coorg, Mysore, Hassan), south India. A pre-tested self-administered questionnaire was distributed to assess the knowledge and practices regarding dental waste management. Descriptive statistics was used to summarize the results. The data will be statistically analyzed using chi-square test, correlation. Result Out of 186 study subjects, 71(38%) were females and 115(62%) were males, Chisquare analysis showed highly significant association between qualification of the study participants and t...

World Journal of Dentistry

The frequent obstacles to successful replantation postavulsion are inflammatory resorption as wel... more The frequent obstacles to successful replantation postavulsion are inflammatory resorption as well as replacement resorption ensuing dentoalveolar ankylosis. 3 IntroductIon A frequent occurrence in young children with unfinished root formation is the occurrence of avulsion of teeth following acute trauma to the oral cavity/teeth. Tear in the PDL results in the separation of the tooth from its socket with remnant viable cells of the PDL on a large part of the radicular surface. Tooth displacement in entirety from the socket with largely lost neurovascular supply and resultant non-vitality characterizes avulsion. Dehydration of the PDL ensues postavulsion. In case drying of remnant periodontal tissues does not occur, the outcomes of tooth avulsion are negligible. 1 Following dental avulsion, instant replantation of the tooth in the area of trauma is the best practice to retain the periodontal cell viability. Nevertheless, such instant replantation exceptionally happens. Instantaneous tooth replantation results in enhanced periodontal repair as well as minimizes root resorption in a noteworthy manner. 2 As a result, reducing the time interval amid trauma and replantation of the tooth while preserving the tooth postavulsion in an appropriate transport media can possibly diminish the hazardous consequences of the extra-alveolar period on the radicular surface with a significant prognostic enhancement.

World Journal of Dentistry

composition as well as the size/ratio of filler components influences intrinsic color alterations... more composition as well as the size/ratio of filler components influences intrinsic color alterations. Adsorbing/absorbing food and beverage containing coloring agents constitute the external parameters that can cause the restoration to discolor. 3 IntroductIon A significant prerequisite for choosing an appropriate restorative material is its color steadiness. The pediatric patient and their parents both yearn for good esthetics. In order to rise to the enhanced esthetic concerns, multiple restorative agents with varying constitutions are being produced for clinical utilization. Conventional glass ionomers, composite resins, as well as resin-modified glass ionomers are among the various restorative agents that have been launched. However, of the more recent preamble are compomer, giomer as well as ormocer restorative agents that possess enhanced features and may be utilized for the restoration of cavities in both deciduous and permanent teeth as well as fulfill the esthetic requirements. 1 Restoration of cavitated esthetic areas of anterior/posterior portions of the dentition to help the rehabilitation of flawed teeth can be accomplished by use of such restorative materials. Nevertheless, the durability as well as suitability of these restorative materials are directly related to the color steadiness of the restorations employed. 2 A noteworthy issue influencing the restorations following long lasting utilization is staining that may occur due to intrinsic/extrinsic parameters. The resin matrix

Journal of Clinical Periodontology, 2010

Aim-The aim of this study was to compare the expression of 22 chemokines and cytokines in gingiva... more Aim-The aim of this study was to compare the expression of 22 chemokines and cytokines in gingival crevicular fluid (GCF) from smokers and non-smokers with periodontitis and periodontally healthy control subjects. Materials and Methods-Forty subjects with generalized severe chronic periodontitis (20 smokers and 20 non-smokers) and 12 periodontally healthy control subjects participated in this study. Four diseased and 2 healthy sites were selected from each of the periodontitis subjects. GCF samples were collected and cytokines analyzed utilizing a multiplexed immunoassay (Luminex®). Statistical analyses employed non-parametric tests including the Mann-Whitney and Wilcoxon matched-pairs signed-rank tests. Results-Compared to healthy control subjects, GCF in subjects with chronic periodontitis contained significantly higher amounts of IL-1α, IL-1β, IL-6, IL-12 (p40) (pro-inflammatory cytokines); IL-8, MCP-1, MIP-1α, RANTES (chemokines); IL-2, IFN-γ, IL-3, IL-4 (Th1/Th2 cytokines); IL-15 (regulator of T-cells and NK cells). Smokers displayed decreased amounts of pro-inflammatory cytokines (IL-1α, IL-6, IL-12 (p40)), chemokines (IL-8, MCP-1, MIP-1, RANTES) and regulators of T-cells and NK cells (IL-7, IL-15). Conclusions-Periodontitis subjects had significantly elevated cytokine and chemokine profiles. Smokers exhibited a decrease in several pro-inflammatory cytokines and chemokines and certain regulators of T-cells and NK-cells. This reflects the immunosuppressant effects of smoking which may contribute to an enhanced susceptibility to periodontitis.

Copyright © 2013 Narendra Varma Penumatsa et al. This is an open access article distributed under... more Copyright © 2013 Narendra Varma Penumatsa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Radicular cyst is the most common odontogenic cystic lesion of inflammatory origin. It is also known as periapical cyst, apical periodontal cyst, root end cyst, or dental cyst. It arises from epithelial residues in the periodontal ligament as a result of inflammation.The inflammation usually follows the death of dental pulp.This paper presents a case report of a patientwith radicular cyst associated with a primary molar. 1.

Aim: The aim of the present study was made to evaluate the micro leakage of a Glass ionomer (FUJI... more Aim: The aim of the present study was made to evaluate the micro leakage of a Glass ionomer (FUJI VII) and micro hybrid flowable composite resin (Tetric flow) in enamel of both deciduous and permanent teeth. Methodology: The study has been done on total of 32 teeth in which 16 permanent teeth were orthodontically extracted and 16 over retained deciduous teeth were extracted. Teeth were randomly divided into four groups of 8 teeth in each group. Standard class I cavities of 1.5 mm depth and 1 mm depth were made on occlusal surfaces of all the teeth. The samples were divided into four groups of which 8 deciduous teeth are for Fuji VII and 8 deciduous teeth for Tetric flow composite and 8 permanent teeth for Fuji VII and 8 permanent teeth for Tetric flow composite. Samples were immersed into 5% Methylene blue dye for 24 hours after restoration with the respective materials. The teeth were sectioned vertically into two halves and observed under the reflected light microscope under 50 x ...

World Journal of Dentistry, 2020

Aim: The present study aimed to assess the dimensions of alveolar ridge using different technique... more Aim: The present study aimed to assess the dimensions of alveolar ridge using different techniques before placement of implant. Materials and methods: Totally 20 patients were chosen for this study. The study was divided into three groups based on the method of measurements of width of alveolar ridge, and all the procedures were performed in all the groups. Group I: Using cone-beam computed tomography (CBCT), group II: ridge mapping dimensions before reflection of surgical flap, group III: direct caliper measurements after surgical exposure of the bone. A transparent acrylic resin stent was made on the study model with reference points. The reference points were seen over the stent through the clear acrylic resin. Results: The mean alveolar ridge dimensions were 4.20 ± 1.80 mm, 3.89 ± 2.24 mm, and 4.24 ± 0.94 mm with the use of CBCT, ridge mapping dimension before surgical flap reflection, and direct caliper measurements after surgical exposure of the bone, respectively, at point 1; and 7.68 ± 1.46 mm, 6.10 ± 1.88 mm, 6.90 ± 1.32 mm, respectively, at point 2. A statistically significant difference was found between the groups at point 2 by an analysis of covariance. Also, the difference between groups I and II was statistically significant. Conclusion: Within the limitations of this study, it was concluded that CBCT and ridge mapping measurements when compared individually with the gold standard surgical open method, CBCT proved to be a highly specific and sensitive method detecting the residual alveolar ridge width in the treatment planning of dental implants. Clinical significance: Implants have become the imminent replacement option for missing teeth. The surgical procedure necessitates a prior knowledge of the surgical site and planning of treatment. Measurement of the residual alveolar bone dimensions is an important precondition for placement of dental implants and their success.

World Journal of Dentistry, 2020

Aim: The present study aimed to evaluate the efficacy of different subgingival irrigating solutio... more Aim: The present study aimed to evaluate the efficacy of different subgingival irrigating solutions, which can be used in the treatment of chronic periodontitis. Materials and methods: Altogether 60 patients (both females and males) aged between 20 years and 60 years who were diagnosed with mild to moderate chronic periodontitis were chosen for this study. After providing oral hygiene maintenance instructions, the patients were grouped randomly divided into three divisions. Group I: subgingival irrigation with tetracycline HCl 10 mg/mL, group II: subgingival irrigation with 0.2% chlorhexidine, group III: Subgingival irrigation with 10% povidone-iodine. The subgingival plaque samples were collected and clinical parameters such as probing pocket depth, gingival index, plaque index, and clinical attachment level were recorded at the selected sites at baseline, after 15 days and at the end of 1 month. Results: The mean gingival index score decreased from 1.76 ± 0.10 at baseline to 1.07 ± 0.01 after 1 month of irrigation, and the mean plaque index score decreased from 1.52 ± 0.20 at baseline to 1.10 ± 0.71 after 1 month of irrigation in group I. A statistically significant difference was found on intergroup comparisons of clinical attachment level, pocket probing depth, and colony-forming units. Conclusion: In conclusion, a significant improvement in the clinical parameters was seen in all the three investigational groups in our study. Nevertheless, slightly better improvement in clinical parameters was demonstrated by the tetracycline HCl irrigation group when compared to povidone-iodine and chlorhexidine irrigating solutions. Clinical significance: The use of subgingival irrigating solutions interferes with the development of the intricate ecosystem, which is required for the commencement and sustained destruction of the periodontium in any vulnerable host. The administration of antimicrobial agents locally offers a "site-precise" method of periodontal treatment and it has numerous advantages.

Journal of Pharmacy and Bioallied Sciences, 2015

Objective: The aim of this study was to evaluate the potential of casein phosphopeptide-amorphous... more Objective: The aim of this study was to evaluate the potential of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) in remineralizing the bleached enamel surface using micro-hardness. Materials and Methods: Thirty human enamel slabs were randomly divided into three groups (n = 10). Groups A and B were exposed to 20% carbamide peroxide and 35% carbamide peroxide gel, respectively. After the exposure to the bleaching agent, the slabs were kept in artificial saliva for 1-week. Group C (control group) were kept in artificial saliva for 1-week. Vickers micro-hardness test was performed by Leica VMHT-Mot micro-hardness tester. CPP-ACP (Gc Tooth Mousse, Melbourne, Australia) was then applied to specimens of Groups A and B for 3 min for 2 weeks. Micro-hardness values of postbleach Group A (Ar) and Group B (Br) were recorded and statistically analyzed by paired t-test and one-way analysis of variance at the significance level of α =0.05. Results: There was a significant decrease in micro-hardness of enamel in carbamide peroxide bleached groups. However, there was a significant increase in micro-hardness after the remineralization by CPP-ACP and the extent of remineralization is more for the Group B. Conclusions: That bleaching agents reduced enamel micro-hardness and the use of CPP-ACP after bleaching can significantly enhance the micro-hardness of bleached enamel.

Journal of Pharmacy and Bioallied Sciences, 2015

Introduction: Individual identification is a significant and difficult task in forensic search; i... more Introduction: Individual identification is a significant and difficult task in forensic search; it was based on logical values. A lip print is different in every living individual and does not change with time so it can be used as a tool in forensic investigations. The present work aimed to find out the correlation between lip prints and lip competence in the pediatric population of Davangere city. Materials and Methods: The study sample comprised of 103 children that is, 49 males and 54 females of aged between 4 and 14 years. The lip impression was made on a strip of cellophane tape on adhesive portion; it was then placed to a white bond paper. This serves as permanent record. In this study, we are followed the classification of patterns of the lines on the lips proposed by Tsuchihashi. For recording lip competence, we considered Ballard criteria. Results: Chi-square test was used to find out the degree of association between variables and to check out whether statistically significant differences exist. Conclusion: Lip prints are unique for every person and show differences according to the race and the ethnic origins of a person. The present study confirmed the distinctiveness of cheiloscopy but disproves any statistical correlation of lip print with lip competency.

Journal of International Society of Preventive and Community Dentistry, 2014

Objective: Objective: The aim of this study was to evaluate the effect of fi nishing time and pol... more Objective: Objective: The aim of this study was to evaluate the effect of fi nishing time and polishing time on surface roughness and microhardness of nanofi lled and hybrid resin composites. Materials and Methods: Materials and Methods: Hundred disk composite specimens from micro hybrid composite and nanohybrid composite were prepared, 50 for each type of composite. The specimens were divided into fi ve groups according to the time of fi nishing and polishing (immediate, 15 min, 24 h and dry). Composite under the Mylar strip without fi nishing and polishing was taken as the control group. Surface roughness was measured with environmental scanning electronic microscope (ESEM) and microhardness was determined using Vickers Microhardness Tester. Data collected were statistically analyzed by t-test and one-way analysis of variance (ANOVA) followed by Turkey's post hoc test. Results: Results: Smooth surface with low hardness was obtained for the group under Mylar strip without fi nishing and polishing. The highest roughness was recorded for delayed fi nishing and polishing for both composites. Immediate fi nishing and polishing increased the surface hardness more than that in the control group in both types of composites. Dry fi nishing reduced the hardness signifi cantly for micro hybrid composite, but resulted in the highest surface hardness for nanofi lled composite. Conclusion: Conclusion: Immediate fi nishing and polishing under coolant resulted in the best surface smoothness and hardness values in micro hybrid composite; however, immediate dry fi nishing and polishing gave the best smoothness and hardness values in nanohybrid composite.

Journal of Dr. NTR University of Health Sciences, 2012

Cornelia de Lange syndrome (CdLS) is a rare multiple congenital anomaly often termed as Amsterdam... more Cornelia de Lange syndrome (CdLS) is a rare multiple congenital anomaly often termed as Amsterdam dwarfism. Exact incidence is unknown, but is estimated at 1 in 30,000 to 50,000. This syndrome is characterized by distinctive facial features, growth retardation, and limb anomalies with learning difficulties. Diagnosis of these children can be difficult and is mainly based on clinical findings. This paper discusses the full mouth rehabilitation of a 7-year-old child with classic CdLS under general anesthesia.

Noise and Health, 2013

Fear or anxiety due to noise produced in the dental clinic is rated third among the reasons to av... more Fear or anxiety due to noise produced in the dental clinic is rated third among the reasons to avoid dental visits. The aim of the present study was to determine anxiety levels associated with noise in a dental clinic. The study was done using a survey questionnaire containing 10 questions and was divided into two parts. The first part included demographic information such as name, age, gender, and school; the second half included questions regarding patient's feelings toward noise in the dental clinic and its possible link to dental anxiety. Two-hundred and fifty children and adolescents of age group 6-15 years participated in the study. Results of the study showed that 50% of females, 29% males avoided a visit to the dentist because of anxiety and fear, 38% subjects of age group 6-11 years reported that sound of the drill makes them uncomfortable, followed by having to wait in the reception area. Gender gap was also observed with more females feeling annoyed than males on the 1-10 annoyance level scale. More than 60% felt "annoyed" to "extremely annoyed" by noise in the dental clinic. 45% of subjects preferred watching television to cope with such noise. This study concludes that the noise produced in dental clinic is anxiety provoking and significantly contributes to avoidance of dental treatment and the best way opted by the majority of subjects to overcome this anxiety was audiovisual distraction method.

Journal of Physics: Conference Series, 2009

Polyaniline are promising molecules which present very attractive properties for nonlinear optica... more Polyaniline are promising molecules which present very attractive properties for nonlinear optical applications. The nonlinear optical properties of polyaniline composite materials(PANI/SiO2) were studied using the single beam Z-scan technique. The nonlinear absorption coefficient (?) and nonlinear refractive index (n2) was retrieved by fitting experimental data. These molecules exhibit a strong reverse saturable absorption and an interesting optical limiting performance with a nanosecond Nd: YAG laser pulses at 532 nm.

World Journal of Dentistry, 2021

Aim and objective: The current research aimed to appraise the color stability of two different to... more Aim and objective: The current research aimed to appraise the color stability of two different tooth-colored restorative materials employed in primary teeth. Materials and methods: Ninety primary molar teeth that were extracted for various therapeutic reasons were included in the current study. Class V cavity preparation was done on the buccal surface of these 90 primary molar teeth. Depending on the type of restorative supply used, the molar teeth were randomly allocated to one of the two equivalent groups (n = 45) that is group I received nanocomposite resin while group II had resin-modified glass ionomer cement (RMGIC) restoration. Rehydration after cavity preparation was achieved by keeping the samples in distilled water for 1 day. Following rehydration, these samples were washed and dried up with filter paper, and the baseline color quantification was performed. After the same, the above group samples were immersed for 10 minutes each day in three dissimilar but routinely used children's beverages that are an aerated beverage, ice candy, chocolate milk, and Bournvita milk. The color disparity of each sample was quantified with a reflectance spectrophotometer. Results: Nanocomposite resin (4.28 ± 0.02 to 11.04 ± 0.18) portrayed less resistance to color variation in contrast to RMGIC (4.74 ± 0.53 to 8.12 ± 0.12) following immersion in the aerated beverage. Following dipping in the ice candy, nanocomposite resin (4.46 ± 0.61 to 9.98 ± 0.42) depicted higher shade change in comparison to RMGIC (4.89 ± 0.22 to 6.30 ± 0.09). Following the immersion in chocolate milk and Bournvita milk, RMGIC (4.60 ± 0.20 to 5.96 ± 0.29) found trivial color variation as judged against nanocomposite resin (4.96 ± 0.01 to 8.68 ± 0.16). Conclusion: The present study concluded that the color stability of the RMGIC group showed higher resistance to staining as compared to nanocomposite resin with all beverages used in this study. Clinical significance: Children drink and eat foods that are bright and colorful. These substances contain food additives that can blemish not only the natural teeth but also the restorations. As esthetics and appearance are of foremost significance for both parents and their children, the prolonged color steadiness of restorative supplies is of extreme significance.

The Journal of Contemporary Dental Practice, 2021

Aim and objective: The aim of this study was to evaluate the depth of penetration as well as the ... more Aim and objective: The aim of this study was to evaluate the depth of penetration as well as the microleakage of three different pit and fissure sealant materials employing the dye penetration method. Materials and methods: Sixty healthy human mandibular premolar teeth without dental caries that were extracted for orthodontic treatment constituted the study samples. These 60 premolar samples were subjected to an equal division (20 in every group) into three groups. Group I: self-adhering flowable composite, group II: flowable nanocomposites, group III: classical pit and fissure sealants. Every sample tooth underwent thermocycling amid 4°C ± 2°C and 60°C ± 2°C for 1,000 cycles. The samples were placed in 1% methylene blue solution for 24 hours to permit diffusion of the dye into probable gaps in between the restoration and the tooth. The teeth were sectioned and evaluated below a stereomicroscope at 10× magnification with image analysis software. Results: Flowable nanocomposites (3.69 ± 0.10) exhibited a slightly greater mean depth of penetration as compared to classical pit and fissure sealants (3.58 ± 0.16) and self-adhering flowable composites (3.51 ± 0.13) in that order. This difference between the three sealants was not significant statistical. Amid the three sealant study groups, the lowest mean marginal microleakage was exhibited by the flowable nanocomposites (1.06 ± 0.03), followed by self-adhering flowable composites (1.98 ± 0.06), and classical pit and fissure sealants (2.74 ± 0.11). Analysis of variance revealed statistically significant differences among the three sealants that were studied. Conclusion: This study concludes that flowable nanocomposites depicted enhanced penetration and reduced marginal leakage as compared to the self-adhering flowable composites and classical pit and fissure sealants. Clinical significance: An efficient approach to preventing dental caries on the occlusal surfaces of teeth is the use of pit and fissure sealants. The efficiency of sealants chiefly depends on the morphological characteristics of the fissures and properties of dental materials used.

The Journal of Contemporary Dental Practice, 2021

Aim and objective: The aim of this study was to evaluate the depth of penetration as well as the ... more Aim and objective: The aim of this study was to evaluate the depth of penetration as well as the microleakage of three different pit and fissure sealant materials employing the dye penetration method. Materials and methods: Sixty healthy human mandibular premolar teeth without dental caries that were extracted for orthodontic treatment constituted the study samples. These 60 premolar samples were subjected to an equal division (20 in every group) into three groups. Group I: self-adhering flowable composite, group II: flowable nanocomposites, group III: classical pit and fissure sealants. Every sample tooth underwent thermocycling amid 4°C ± 2°C and 60°C ± 2°C for 1,000 cycles. The samples were placed in 1% methylene blue solution for 24 hours to permit diffusion of the dye into probable gaps in between the restoration and the tooth. The teeth were sectioned and evaluated below a stereomicroscope at 10× magnification with image analysis software. Results: Flowable nanocomposites (3.69 ± 0.10) exhibited a slightly greater mean depth of penetration as compared to classical pit and fissure sealants (3.58 ± 0.16) and self-adhering flowable composites (3.51 ± 0.13) in that order. This difference between the three sealants was not significant statistical. Amid the three sealant study groups, the lowest mean marginal microleakage was exhibited by the flowable nanocomposites (1.06 ± 0.03), followed by self-adhering flowable composites (1.98 ± 0.06), and classical pit and fissure sealants (2.74 ± 0.11). Analysis of variance revealed statistically significant differences among the three sealants that were studied. Conclusion: This study concludes that flowable nanocomposites depicted enhanced penetration and reduced marginal leakage as compared to the self-adhering flowable composites and classical pit and fissure sealants. Clinical significance: An efficient approach to preventing dental caries on the occlusal surfaces of teeth is the use of pit and fissure sealants. The efficiency of sealants chiefly depends on the morphological characteristics of the fissures and properties of dental materials used.

World Journal of Dentistry

Aim: The aim of the current study was to appraise the efficiency of two different dentin biomodif... more Aim: The aim of the current study was to appraise the efficiency of two different dentin biomodifiers on the shear bond strength of the dentin-resin interface. Materials and methods: A total of 60 human deciduous molars without dental caries were utilized for the purpose of this research. Individual teeth were subjected to mounting on self-curing acrylic resin, uncovering them 1 mm beneath the cementoenamel junction (CEJ). Preparation of class V cavities was performed on the buccal surface of the teeth with the occlusal edge in the enamel while the cervical borders were positioned 0.75 mm apical to the CEJ. After the cavity preparations were made using consistent proportions, the specimens were allocated at random to one of the three groups (n = 20)-the Group I-control group, Group II-casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), and group III-chitosan nanoparticles (CNPs). The universal single-bond adhesive system was subjected to application on the specimens. Each of the finished specimens was tested for its shear bond strength by employing the universal testing machine. Results: Casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) group at 161.32 ± 5.220 showed the highest shear bond strength, in pursuit by the CNPs group at 158.18 ± 5.148 and finally, the control group at 124.98 ± 7.246. A statistically noteworthy dissimilarity was noted among the three groups. On multiple contrast assessments of dentin biomodifiers on shear bond strength, a greatly significant disparity was noted amid the control vs CPP-ACP and control vs CNPs (p < 0.001). Conclusion: Amid the confines of the limitations that this research had, it can be inferred that the utility of dentin biomodifiers like CPP-ACP as well as CNPs have the potential to improve the enduring steadiness of the dentin bond, thus improving the durability of the tooth-restoration composite. However, the CPP-ACP cohort exhibited somewhat improved shear bond strength vs CNPs. Clinical significance: Multiple dentin biomodifiers are presently accessible to decrease the degradation of collagen by enzymes as well as enhance their mechanical strength and steadiness. Biomodifying dentin utilizes inhibiting agents for matrix metalloproteinases (MMPs) in addition to the use of dentinal collagen cross-linkers. Such biomodification of dentin seems to be a competent move toward the stabilization of the resin-dentin bond.

Journal of International Oral Health, 2019

Aims and Objectives: Health-care professionals have an important role in health education for the... more Aims and Objectives: Health-care professionals have an important role in health education for their patients, families, and friends also at the community levels. However, understanding their own behavior toward their oral health is more important for the oral health educators who are also health-care professionals. Assessment and practice of oral hygiene status among health-care professionals working in King Khalid Hospital, Al-Kharj, Riyadh, Kingdom of Saudi Arabia was the aim of the study. Materials and Methods: A study was carried out with the aid of specially designed questionnaire consisting of details regarding demographic variables and oral hygiene practice among the health-care workers (HCWs). Convenience samples were selected and preformed questionnaire was given and oral examination was conducted on 267 male HCWs and 164 female HCWs. Data were analyzed using the Statistical Package of the Social Sciences (SPSS) software, version 20, to perform chi-square test and analysis of variance. Results: Among 431 HCWs, 267 males and 164 females participated. A total of 302 people told they brush once daily and it was significant among age group. Mean calculus (0.82) was more among the participants aged >50 years. Mean oral hygiene index-simplified (2.23) was more among those aged >50 years. Mean debris (1.40) was more among >50 years and was statistically significant. Conclusion: HCWs showed that their oral hygiene status was fair. Awareness programs must be conducted frequently to boost up the oral self-hygiene practices among them for many good reasons.

Journal of Pharmacy And Bioallied Sciences, 2015

To determine and compare the potential difference of nickel release from three different orthodon... more To determine and compare the potential difference of nickel release from three different orthodontic brackets, in different artificial pH, in different time intervals. Twenty-seven samples of three different orthodontic brackets were selected and grouped as 1, 2, and 3. Each group was divided into three subgroups depending on the type of orthodontic brackets, salivary pH and the time interval. The Nickel release from each subgroup were analyzed by using inductively coupled plasma-Atomic Emission Spectrophotometer (Perkin Elmer, Optima 2100 DV, USA) model. Quantitative analysis of nickel was performed three times, and the mean value was used as result. ANOVA (F-test) was used to test the significant difference among the groups at 0.05 level of significance (P &lt; 0.05). The descriptive method of statistics was used to calculate the mean, standard deviation, minimum and maximum. SPSS 18 software ((SPSS.Ltd, Quarry bay, Hong Kong, PASW-statistics 18) was used to analyze the study. The analysis shows a significant difference between three groups. The study shows that the nickel releases from the recycled stainless steel brackets have the highest at all 4.2 pH except in 120 h. The study result shows that the nickel release from the recycled stainless steel brackets is highest. Metal slot ceramic bracket release significantly less nickel. So, recycled stainless steel brackets should not be used for nickel allergic patients. Metal slot ceramic brackets are advisable.

Kathmandu University medical journal (KUMJ)

Background Dental wastes are materials that have been utilized in dental clinics, which are no lo... more Background Dental wastes are materials that have been utilized in dental clinics, which are no longer wanted for use and therefore discarded. Improper disposal of these dental wastes can cause harm to the dentist, the people in immediate vicinity of the dentist. Objective The present study was conducted to assess the knowledge and practices regarding Dental waste management among private practitioners. Method The study population included 186 private practitioners in three districts of Karnataka (Coorg, Mysore, Hassan), south India. A pre-tested self-administered questionnaire was distributed to assess the knowledge and practices regarding dental waste management. Descriptive statistics was used to summarize the results. The data will be statistically analyzed using chi-square test, correlation. Result Out of 186 study subjects, 71(38%) were females and 115(62%) were males, Chisquare analysis showed highly significant association between qualification of the study participants and t...

World Journal of Dentistry

The frequent obstacles to successful replantation postavulsion are inflammatory resorption as wel... more The frequent obstacles to successful replantation postavulsion are inflammatory resorption as well as replacement resorption ensuing dentoalveolar ankylosis. 3 IntroductIon A frequent occurrence in young children with unfinished root formation is the occurrence of avulsion of teeth following acute trauma to the oral cavity/teeth. Tear in the PDL results in the separation of the tooth from its socket with remnant viable cells of the PDL on a large part of the radicular surface. Tooth displacement in entirety from the socket with largely lost neurovascular supply and resultant non-vitality characterizes avulsion. Dehydration of the PDL ensues postavulsion. In case drying of remnant periodontal tissues does not occur, the outcomes of tooth avulsion are negligible. 1 Following dental avulsion, instant replantation of the tooth in the area of trauma is the best practice to retain the periodontal cell viability. Nevertheless, such instant replantation exceptionally happens. Instantaneous tooth replantation results in enhanced periodontal repair as well as minimizes root resorption in a noteworthy manner. 2 As a result, reducing the time interval amid trauma and replantation of the tooth while preserving the tooth postavulsion in an appropriate transport media can possibly diminish the hazardous consequences of the extra-alveolar period on the radicular surface with a significant prognostic enhancement.

World Journal of Dentistry

composition as well as the size/ratio of filler components influences intrinsic color alterations... more composition as well as the size/ratio of filler components influences intrinsic color alterations. Adsorbing/absorbing food and beverage containing coloring agents constitute the external parameters that can cause the restoration to discolor. 3 IntroductIon A significant prerequisite for choosing an appropriate restorative material is its color steadiness. The pediatric patient and their parents both yearn for good esthetics. In order to rise to the enhanced esthetic concerns, multiple restorative agents with varying constitutions are being produced for clinical utilization. Conventional glass ionomers, composite resins, as well as resin-modified glass ionomers are among the various restorative agents that have been launched. However, of the more recent preamble are compomer, giomer as well as ormocer restorative agents that possess enhanced features and may be utilized for the restoration of cavities in both deciduous and permanent teeth as well as fulfill the esthetic requirements. 1 Restoration of cavitated esthetic areas of anterior/posterior portions of the dentition to help the rehabilitation of flawed teeth can be accomplished by use of such restorative materials. Nevertheless, the durability as well as suitability of these restorative materials are directly related to the color steadiness of the restorations employed. 2 A noteworthy issue influencing the restorations following long lasting utilization is staining that may occur due to intrinsic/extrinsic parameters. The resin matrix

Journal of Clinical Periodontology, 2010

Aim-The aim of this study was to compare the expression of 22 chemokines and cytokines in gingiva... more Aim-The aim of this study was to compare the expression of 22 chemokines and cytokines in gingival crevicular fluid (GCF) from smokers and non-smokers with periodontitis and periodontally healthy control subjects. Materials and Methods-Forty subjects with generalized severe chronic periodontitis (20 smokers and 20 non-smokers) and 12 periodontally healthy control subjects participated in this study. Four diseased and 2 healthy sites were selected from each of the periodontitis subjects. GCF samples were collected and cytokines analyzed utilizing a multiplexed immunoassay (Luminex®). Statistical analyses employed non-parametric tests including the Mann-Whitney and Wilcoxon matched-pairs signed-rank tests. Results-Compared to healthy control subjects, GCF in subjects with chronic periodontitis contained significantly higher amounts of IL-1α, IL-1β, IL-6, IL-12 (p40) (pro-inflammatory cytokines); IL-8, MCP-1, MIP-1α, RANTES (chemokines); IL-2, IFN-γ, IL-3, IL-4 (Th1/Th2 cytokines); IL-15 (regulator of T-cells and NK cells). Smokers displayed decreased amounts of pro-inflammatory cytokines (IL-1α, IL-6, IL-12 (p40)), chemokines (IL-8, MCP-1, MIP-1, RANTES) and regulators of T-cells and NK cells (IL-7, IL-15). Conclusions-Periodontitis subjects had significantly elevated cytokine and chemokine profiles. Smokers exhibited a decrease in several pro-inflammatory cytokines and chemokines and certain regulators of T-cells and NK-cells. This reflects the immunosuppressant effects of smoking which may contribute to an enhanced susceptibility to periodontitis.

Copyright © 2013 Narendra Varma Penumatsa et al. This is an open access article distributed under... more Copyright © 2013 Narendra Varma Penumatsa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Radicular cyst is the most common odontogenic cystic lesion of inflammatory origin. It is also known as periapical cyst, apical periodontal cyst, root end cyst, or dental cyst. It arises from epithelial residues in the periodontal ligament as a result of inflammation.The inflammation usually follows the death of dental pulp.This paper presents a case report of a patientwith radicular cyst associated with a primary molar. 1.

Aim: The aim of the present study was made to evaluate the micro leakage of a Glass ionomer (FUJI... more Aim: The aim of the present study was made to evaluate the micro leakage of a Glass ionomer (FUJI VII) and micro hybrid flowable composite resin (Tetric flow) in enamel of both deciduous and permanent teeth. Methodology: The study has been done on total of 32 teeth in which 16 permanent teeth were orthodontically extracted and 16 over retained deciduous teeth were extracted. Teeth were randomly divided into four groups of 8 teeth in each group. Standard class I cavities of 1.5 mm depth and 1 mm depth were made on occlusal surfaces of all the teeth. The samples were divided into four groups of which 8 deciduous teeth are for Fuji VII and 8 deciduous teeth for Tetric flow composite and 8 permanent teeth for Fuji VII and 8 permanent teeth for Tetric flow composite. Samples were immersed into 5% Methylene blue dye for 24 hours after restoration with the respective materials. The teeth were sectioned vertically into two halves and observed under the reflected light microscope under 50 x ...

World Journal of Dentistry, 2020

Aim: The present study aimed to assess the dimensions of alveolar ridge using different technique... more Aim: The present study aimed to assess the dimensions of alveolar ridge using different techniques before placement of implant. Materials and methods: Totally 20 patients were chosen for this study. The study was divided into three groups based on the method of measurements of width of alveolar ridge, and all the procedures were performed in all the groups. Group I: Using cone-beam computed tomography (CBCT), group II: ridge mapping dimensions before reflection of surgical flap, group III: direct caliper measurements after surgical exposure of the bone. A transparent acrylic resin stent was made on the study model with reference points. The reference points were seen over the stent through the clear acrylic resin. Results: The mean alveolar ridge dimensions were 4.20 ± 1.80 mm, 3.89 ± 2.24 mm, and 4.24 ± 0.94 mm with the use of CBCT, ridge mapping dimension before surgical flap reflection, and direct caliper measurements after surgical exposure of the bone, respectively, at point 1; and 7.68 ± 1.46 mm, 6.10 ± 1.88 mm, 6.90 ± 1.32 mm, respectively, at point 2. A statistically significant difference was found between the groups at point 2 by an analysis of covariance. Also, the difference between groups I and II was statistically significant. Conclusion: Within the limitations of this study, it was concluded that CBCT and ridge mapping measurements when compared individually with the gold standard surgical open method, CBCT proved to be a highly specific and sensitive method detecting the residual alveolar ridge width in the treatment planning of dental implants. Clinical significance: Implants have become the imminent replacement option for missing teeth. The surgical procedure necessitates a prior knowledge of the surgical site and planning of treatment. Measurement of the residual alveolar bone dimensions is an important precondition for placement of dental implants and their success.

World Journal of Dentistry, 2020

Aim: The present study aimed to evaluate the efficacy of different subgingival irrigating solutio... more Aim: The present study aimed to evaluate the efficacy of different subgingival irrigating solutions, which can be used in the treatment of chronic periodontitis. Materials and methods: Altogether 60 patients (both females and males) aged between 20 years and 60 years who were diagnosed with mild to moderate chronic periodontitis were chosen for this study. After providing oral hygiene maintenance instructions, the patients were grouped randomly divided into three divisions. Group I: subgingival irrigation with tetracycline HCl 10 mg/mL, group II: subgingival irrigation with 0.2% chlorhexidine, group III: Subgingival irrigation with 10% povidone-iodine. The subgingival plaque samples were collected and clinical parameters such as probing pocket depth, gingival index, plaque index, and clinical attachment level were recorded at the selected sites at baseline, after 15 days and at the end of 1 month. Results: The mean gingival index score decreased from 1.76 ± 0.10 at baseline to 1.07 ± 0.01 after 1 month of irrigation, and the mean plaque index score decreased from 1.52 ± 0.20 at baseline to 1.10 ± 0.71 after 1 month of irrigation in group I. A statistically significant difference was found on intergroup comparisons of clinical attachment level, pocket probing depth, and colony-forming units. Conclusion: In conclusion, a significant improvement in the clinical parameters was seen in all the three investigational groups in our study. Nevertheless, slightly better improvement in clinical parameters was demonstrated by the tetracycline HCl irrigation group when compared to povidone-iodine and chlorhexidine irrigating solutions. Clinical significance: The use of subgingival irrigating solutions interferes with the development of the intricate ecosystem, which is required for the commencement and sustained destruction of the periodontium in any vulnerable host. The administration of antimicrobial agents locally offers a "site-precise" method of periodontal treatment and it has numerous advantages.

Journal of Pharmacy and Bioallied Sciences, 2015

Objective: The aim of this study was to evaluate the potential of casein phosphopeptide-amorphous... more Objective: The aim of this study was to evaluate the potential of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) in remineralizing the bleached enamel surface using micro-hardness. Materials and Methods: Thirty human enamel slabs were randomly divided into three groups (n = 10). Groups A and B were exposed to 20% carbamide peroxide and 35% carbamide peroxide gel, respectively. After the exposure to the bleaching agent, the slabs were kept in artificial saliva for 1-week. Group C (control group) were kept in artificial saliva for 1-week. Vickers micro-hardness test was performed by Leica VMHT-Mot micro-hardness tester. CPP-ACP (Gc Tooth Mousse, Melbourne, Australia) was then applied to specimens of Groups A and B for 3 min for 2 weeks. Micro-hardness values of postbleach Group A (Ar) and Group B (Br) were recorded and statistically analyzed by paired t-test and one-way analysis of variance at the significance level of α =0.05. Results: There was a significant decrease in micro-hardness of enamel in carbamide peroxide bleached groups. However, there was a significant increase in micro-hardness after the remineralization by CPP-ACP and the extent of remineralization is more for the Group B. Conclusions: That bleaching agents reduced enamel micro-hardness and the use of CPP-ACP after bleaching can significantly enhance the micro-hardness of bleached enamel.

Journal of Pharmacy and Bioallied Sciences, 2015

Introduction: Individual identification is a significant and difficult task in forensic search; i... more Introduction: Individual identification is a significant and difficult task in forensic search; it was based on logical values. A lip print is different in every living individual and does not change with time so it can be used as a tool in forensic investigations. The present work aimed to find out the correlation between lip prints and lip competence in the pediatric population of Davangere city. Materials and Methods: The study sample comprised of 103 children that is, 49 males and 54 females of aged between 4 and 14 years. The lip impression was made on a strip of cellophane tape on adhesive portion; it was then placed to a white bond paper. This serves as permanent record. In this study, we are followed the classification of patterns of the lines on the lips proposed by Tsuchihashi. For recording lip competence, we considered Ballard criteria. Results: Chi-square test was used to find out the degree of association between variables and to check out whether statistically significant differences exist. Conclusion: Lip prints are unique for every person and show differences according to the race and the ethnic origins of a person. The present study confirmed the distinctiveness of cheiloscopy but disproves any statistical correlation of lip print with lip competency.

Journal of International Society of Preventive and Community Dentistry, 2014

Objective: Objective: The aim of this study was to evaluate the effect of fi nishing time and pol... more Objective: Objective: The aim of this study was to evaluate the effect of fi nishing time and polishing time on surface roughness and microhardness of nanofi lled and hybrid resin composites. Materials and Methods: Materials and Methods: Hundred disk composite specimens from micro hybrid composite and nanohybrid composite were prepared, 50 for each type of composite. The specimens were divided into fi ve groups according to the time of fi nishing and polishing (immediate, 15 min, 24 h and dry). Composite under the Mylar strip without fi nishing and polishing was taken as the control group. Surface roughness was measured with environmental scanning electronic microscope (ESEM) and microhardness was determined using Vickers Microhardness Tester. Data collected were statistically analyzed by t-test and one-way analysis of variance (ANOVA) followed by Turkey's post hoc test. Results: Results: Smooth surface with low hardness was obtained for the group under Mylar strip without fi nishing and polishing. The highest roughness was recorded for delayed fi nishing and polishing for both composites. Immediate fi nishing and polishing increased the surface hardness more than that in the control group in both types of composites. Dry fi nishing reduced the hardness signifi cantly for micro hybrid composite, but resulted in the highest surface hardness for nanofi lled composite. Conclusion: Conclusion: Immediate fi nishing and polishing under coolant resulted in the best surface smoothness and hardness values in micro hybrid composite; however, immediate dry fi nishing and polishing gave the best smoothness and hardness values in nanohybrid composite.

Journal of Dr. NTR University of Health Sciences, 2012

Cornelia de Lange syndrome (CdLS) is a rare multiple congenital anomaly often termed as Amsterdam... more Cornelia de Lange syndrome (CdLS) is a rare multiple congenital anomaly often termed as Amsterdam dwarfism. Exact incidence is unknown, but is estimated at 1 in 30,000 to 50,000. This syndrome is characterized by distinctive facial features, growth retardation, and limb anomalies with learning difficulties. Diagnosis of these children can be difficult and is mainly based on clinical findings. This paper discusses the full mouth rehabilitation of a 7-year-old child with classic CdLS under general anesthesia.

Noise and Health, 2013

Fear or anxiety due to noise produced in the dental clinic is rated third among the reasons to av... more Fear or anxiety due to noise produced in the dental clinic is rated third among the reasons to avoid dental visits. The aim of the present study was to determine anxiety levels associated with noise in a dental clinic. The study was done using a survey questionnaire containing 10 questions and was divided into two parts. The first part included demographic information such as name, age, gender, and school; the second half included questions regarding patient's feelings toward noise in the dental clinic and its possible link to dental anxiety. Two-hundred and fifty children and adolescents of age group 6-15 years participated in the study. Results of the study showed that 50% of females, 29% males avoided a visit to the dentist because of anxiety and fear, 38% subjects of age group 6-11 years reported that sound of the drill makes them uncomfortable, followed by having to wait in the reception area. Gender gap was also observed with more females feeling annoyed than males on the 1-10 annoyance level scale. More than 60% felt "annoyed" to "extremely annoyed" by noise in the dental clinic. 45% of subjects preferred watching television to cope with such noise. This study concludes that the noise produced in dental clinic is anxiety provoking and significantly contributes to avoidance of dental treatment and the best way opted by the majority of subjects to overcome this anxiety was audiovisual distraction method.

Journal of Physics: Conference Series, 2009

Polyaniline are promising molecules which present very attractive properties for nonlinear optica... more Polyaniline are promising molecules which present very attractive properties for nonlinear optical applications. The nonlinear optical properties of polyaniline composite materials(PANI/SiO2) were studied using the single beam Z-scan technique. The nonlinear absorption coefficient (?) and nonlinear refractive index (n2) was retrieved by fitting experimental data. These molecules exhibit a strong reverse saturable absorption and an interesting optical limiting performance with a nanosecond Nd: YAG laser pulses at 532 nm.

World Journal of Dentistry, 2021

Aim and objective: The current research aimed to appraise the color stability of two different to... more Aim and objective: The current research aimed to appraise the color stability of two different tooth-colored restorative materials employed in primary teeth. Materials and methods: Ninety primary molar teeth that were extracted for various therapeutic reasons were included in the current study. Class V cavity preparation was done on the buccal surface of these 90 primary molar teeth. Depending on the type of restorative supply used, the molar teeth were randomly allocated to one of the two equivalent groups (n = 45) that is group I received nanocomposite resin while group II had resin-modified glass ionomer cement (RMGIC) restoration. Rehydration after cavity preparation was achieved by keeping the samples in distilled water for 1 day. Following rehydration, these samples were washed and dried up with filter paper, and the baseline color quantification was performed. After the same, the above group samples were immersed for 10 minutes each day in three dissimilar but routinely used children's beverages that are an aerated beverage, ice candy, chocolate milk, and Bournvita milk. The color disparity of each sample was quantified with a reflectance spectrophotometer. Results: Nanocomposite resin (4.28 ± 0.02 to 11.04 ± 0.18) portrayed less resistance to color variation in contrast to RMGIC (4.74 ± 0.53 to 8.12 ± 0.12) following immersion in the aerated beverage. Following dipping in the ice candy, nanocomposite resin (4.46 ± 0.61 to 9.98 ± 0.42) depicted higher shade change in comparison to RMGIC (4.89 ± 0.22 to 6.30 ± 0.09). Following the immersion in chocolate milk and Bournvita milk, RMGIC (4.60 ± 0.20 to 5.96 ± 0.29) found trivial color variation as judged against nanocomposite resin (4.96 ± 0.01 to 8.68 ± 0.16). Conclusion: The present study concluded that the color stability of the RMGIC group showed higher resistance to staining as compared to nanocomposite resin with all beverages used in this study. Clinical significance: Children drink and eat foods that are bright and colorful. These substances contain food additives that can blemish not only the natural teeth but also the restorations. As esthetics and appearance are of foremost significance for both parents and their children, the prolonged color steadiness of restorative supplies is of extreme significance.

The Journal of Contemporary Dental Practice, 2021

Aim and objective: The aim of this study was to evaluate the depth of penetration as well as the ... more Aim and objective: The aim of this study was to evaluate the depth of penetration as well as the microleakage of three different pit and fissure sealant materials employing the dye penetration method. Materials and methods: Sixty healthy human mandibular premolar teeth without dental caries that were extracted for orthodontic treatment constituted the study samples. These 60 premolar samples were subjected to an equal division (20 in every group) into three groups. Group I: self-adhering flowable composite, group II: flowable nanocomposites, group III: classical pit and fissure sealants. Every sample tooth underwent thermocycling amid 4°C ± 2°C and 60°C ± 2°C for 1,000 cycles. The samples were placed in 1% methylene blue solution for 24 hours to permit diffusion of the dye into probable gaps in between the restoration and the tooth. The teeth were sectioned and evaluated below a stereomicroscope at 10× magnification with image analysis software. Results: Flowable nanocomposites (3.69 ± 0.10) exhibited a slightly greater mean depth of penetration as compared to classical pit and fissure sealants (3.58 ± 0.16) and self-adhering flowable composites (3.51 ± 0.13) in that order. This difference between the three sealants was not significant statistical. Amid the three sealant study groups, the lowest mean marginal microleakage was exhibited by the flowable nanocomposites (1.06 ± 0.03), followed by self-adhering flowable composites (1.98 ± 0.06), and classical pit and fissure sealants (2.74 ± 0.11). Analysis of variance revealed statistically significant differences among the three sealants that were studied. Conclusion: This study concludes that flowable nanocomposites depicted enhanced penetration and reduced marginal leakage as compared to the self-adhering flowable composites and classical pit and fissure sealants. Clinical significance: An efficient approach to preventing dental caries on the occlusal surfaces of teeth is the use of pit and fissure sealants. The efficiency of sealants chiefly depends on the morphological characteristics of the fissures and properties of dental materials used.

The Journal of Contemporary Dental Practice, 2021

Aim and objective: The aim of this study was to evaluate the depth of penetration as well as the ... more Aim and objective: The aim of this study was to evaluate the depth of penetration as well as the microleakage of three different pit and fissure sealant materials employing the dye penetration method. Materials and methods: Sixty healthy human mandibular premolar teeth without dental caries that were extracted for orthodontic treatment constituted the study samples. These 60 premolar samples were subjected to an equal division (20 in every group) into three groups. Group I: self-adhering flowable composite, group II: flowable nanocomposites, group III: classical pit and fissure sealants. Every sample tooth underwent thermocycling amid 4°C ± 2°C and 60°C ± 2°C for 1,000 cycles. The samples were placed in 1% methylene blue solution for 24 hours to permit diffusion of the dye into probable gaps in between the restoration and the tooth. The teeth were sectioned and evaluated below a stereomicroscope at 10× magnification with image analysis software. Results: Flowable nanocomposites (3.69 ± 0.10) exhibited a slightly greater mean depth of penetration as compared to classical pit and fissure sealants (3.58 ± 0.16) and self-adhering flowable composites (3.51 ± 0.13) in that order. This difference between the three sealants was not significant statistical. Amid the three sealant study groups, the lowest mean marginal microleakage was exhibited by the flowable nanocomposites (1.06 ± 0.03), followed by self-adhering flowable composites (1.98 ± 0.06), and classical pit and fissure sealants (2.74 ± 0.11). Analysis of variance revealed statistically significant differences among the three sealants that were studied. Conclusion: This study concludes that flowable nanocomposites depicted enhanced penetration and reduced marginal leakage as compared to the self-adhering flowable composites and classical pit and fissure sealants. Clinical significance: An efficient approach to preventing dental caries on the occlusal surfaces of teeth is the use of pit and fissure sealants. The efficiency of sealants chiefly depends on the morphological characteristics of the fissures and properties of dental materials used.