Nithya Thomas - Academia.edu (original) (raw)
Papers by Nithya Thomas
World journal of dentistry, Apr 2, 2024
IntroductIon Noncarious cervical lesions (NCCLs) mainly involve damage to tooth structure along t... more IntroductIon Noncarious cervical lesions (NCCLs) mainly involve damage to tooth structure along the cervical region. NCCLs appear clinically as shallow or deep depressions, disk-or wedge-shaped abnormalities at the cementoenamel junction. 1 Difficulty in moisture control and poor mechanical retention pose a challenge to these restorations' longevity and marginal sealing. American Dental Association (ADA) recommends using NCCLs as a clinical model to assess the effectiveness of dentin-bonding agents in nonretentive tooth restorations. 2 The characteristics of NCCL are as follows: class V lesions are minimally prepared and relatively easy to restore, reducing practitioner variability somewhat; these lesions are lacking in any macro-mechanical retention; they need a minimum of 50% bonding to dentin; when restored, they result in both enamel and dentin margin; and they are easily available. Ineffective bonding commonly results in restoration loss, which is the most objective evaluation parameter. 1 Etch-and-rinse adhesives and self-etch adhesives are the two basic types of adhesive systems. The total-etch technique is the oldest and most reliable adhesion method still in use today, with its superior clinical efficacy and longevity. 1 Since it requires additional steps and has a greater effect on the dentine substrate during the etching process, the etch-and-rinse method produces the deepest hybrid layer in enamel. 2 The second strategy is self-etch adhesive systems,
The journal of contemporary dental practice, Jun 14, 2024
Aim: This investigation aimed to observe the effects of Dycal, mineral trioxide aggregate (MTA), ... more Aim: This investigation aimed to observe the effects of Dycal, mineral trioxide aggregate (MTA), and TheraCal LC, as indirect pulp-capping materials in primary molars. Materials and methods: About 75 children with lower primary molars aged between 4 and 7 years suggested for IPC were selected and randomly allocated into: Group I-Dycal, group II-MTA, and group III-TheraCal LC. An immediate postoperative radiograph was taken after the procedure. Recall examination was done after 3 and 6 months for clinical and radiographic assessment. The radiographs were digitized, and the amount of thickness of dentin was assessed using Corel Draw software. The values were tabulated and subjected to paired t-tests and independent t-tests for intra and intergroup analysis, respectively. The p-value < 0.05 was considered statistically significant. Results: There was a statistically significant increase in dentin thickness in the first 3 months compared to the 6-month follow-up. At the end of the research phase, TheraCal LC had more tertiary dentin deposited than MTA, followed by Dycal. Conclusion: TheraCal LC can be a reliable indirect pulp-capping agent in primary teeth. Clinical significance: Indirect pulp capping (IPC) is a very extensively employed treatment regimen to manage extensive caries. For many decades, calcium hydroxide has been regarded as the benchmark of pulp capping materials. With several advancements in materials for restoration, TheraCal LC a resin-modified, light-cured calcium silicate-filled liner serves as a pulp-capping agent and dentin protector, promoting pulp healing and preserving vitality as an obstacle cum protector of the dental pulp complex.
Zenodo (CERN European Organization for Nuclear Research), Oct 4, 2022
Turkish Online Journal of Qualitative Inquiry, Jul 1, 2021
Supernumerary teeth are considered as a bizarre rise in the number of naturally occurring teeth. ... more Supernumerary teeth are considered as a bizarre rise in the number of naturally occurring teeth. Only some examples of nonsyndromic multiple supernumerary teeth have been reported in literature. In this report, we present a case of multiple unerrupted bila syndrome in a seven year old child as a result of a casual finding during routine X ray study. A panoramic radiograph revealed multiple impacted supernumerary teeth which were diagnosed during routine radiog diagnosis of idiopathic hyperdontia was given. In such cases, management should be planned by a multidisciplinary approach.
Journal of Clinical and Experimental Dentistry, 2019
Remineralization is the process of returning mineral ions into a hydroxyapatite structure charact... more Remineralization is the process of returning mineral ions into a hydroxyapatite structure characterized by mineral deposition on the enamel surface. The use of fluorine as remineralization agent with side effects such as fluorosis. Cocoa bean extract contains theobromine that can be used as an alternative remineralization ingredient. Cocoa (Theobroma cacao) as natural materials can be utilized in the field of dentistry with the extract containing theobromine, which is expected to be an alternative to fluoride. Some research on Theobromine (3,7-dimethylxantine) contained in the cocoa fruit extracts, found that theobromine can be used as a natural ingredient to prevent dental caries. This paper reviews the remineralisation potential in dental caries and the possibility of being an adjunct to fluoride.
Journal of International Oral Health
Aim: The introduction of a new drug for preventing dental caries, suitable for localized release ... more Aim: The introduction of a new drug for preventing dental caries, suitable for localized release in the mouth, has become a need of the hour. Silver nitrate has long been used in dentistry because of its sclerosing and dehydrating properties. This study aimed at evaluating the antimicrobial action of two concentrations of silver nitrate (0.05 N, 0.1 N) against Streptococcus mutans and Candida albicans and at comparing it with 2% chlorhexidine (CHX) and 0.9% saline. Materials and Methods: Standard strains of S. mutans and C. albicans were cultured on agar plates and disks impregnated with four test solutions, namely Group I: 2% CHX, Group II: 0.1 N silver nitrate, Group III: 0.05 N silver nitrate, and Group IV: 0.9% N Saline was incorporated into these. The plates were then incubated and inhibition zone was measured using calipers. The measured values were subjected to statistical analysis using one-way ANOVA and Tukey’s post hoc test for a pairwise comparison. Results: The analysis using one-way analysis of variance (ANOVA) showed a highly significant difference among different groups for both organisms. Further analysis using post hoc test in case of S. mutans showed not much significant difference between group II and group III, but a significant difference was exhibited when compared with group 1 and group IV. In the case of C. albicans, there was a highly significant difference among each group (II>III>1>IV). Conclusion: The 0.05 N and 0.1N silver nitrate showed significant antimicrobial action, with 0.1 N AgNO3 being the most effective.
World journal of dentistry, Apr 2, 2024
IntroductIon Noncarious cervical lesions (NCCLs) mainly involve damage to tooth structure along t... more IntroductIon Noncarious cervical lesions (NCCLs) mainly involve damage to tooth structure along the cervical region. NCCLs appear clinically as shallow or deep depressions, disk-or wedge-shaped abnormalities at the cementoenamel junction. 1 Difficulty in moisture control and poor mechanical retention pose a challenge to these restorations' longevity and marginal sealing. American Dental Association (ADA) recommends using NCCLs as a clinical model to assess the effectiveness of dentin-bonding agents in nonretentive tooth restorations. 2 The characteristics of NCCL are as follows: class V lesions are minimally prepared and relatively easy to restore, reducing practitioner variability somewhat; these lesions are lacking in any macro-mechanical retention; they need a minimum of 50% bonding to dentin; when restored, they result in both enamel and dentin margin; and they are easily available. Ineffective bonding commonly results in restoration loss, which is the most objective evaluation parameter. 1 Etch-and-rinse adhesives and self-etch adhesives are the two basic types of adhesive systems. The total-etch technique is the oldest and most reliable adhesion method still in use today, with its superior clinical efficacy and longevity. 1 Since it requires additional steps and has a greater effect on the dentine substrate during the etching process, the etch-and-rinse method produces the deepest hybrid layer in enamel. 2 The second strategy is self-etch adhesive systems,
The journal of contemporary dental practice, Jun 14, 2024
Aim: This investigation aimed to observe the effects of Dycal, mineral trioxide aggregate (MTA), ... more Aim: This investigation aimed to observe the effects of Dycal, mineral trioxide aggregate (MTA), and TheraCal LC, as indirect pulp-capping materials in primary molars. Materials and methods: About 75 children with lower primary molars aged between 4 and 7 years suggested for IPC were selected and randomly allocated into: Group I-Dycal, group II-MTA, and group III-TheraCal LC. An immediate postoperative radiograph was taken after the procedure. Recall examination was done after 3 and 6 months for clinical and radiographic assessment. The radiographs were digitized, and the amount of thickness of dentin was assessed using Corel Draw software. The values were tabulated and subjected to paired t-tests and independent t-tests for intra and intergroup analysis, respectively. The p-value < 0.05 was considered statistically significant. Results: There was a statistically significant increase in dentin thickness in the first 3 months compared to the 6-month follow-up. At the end of the research phase, TheraCal LC had more tertiary dentin deposited than MTA, followed by Dycal. Conclusion: TheraCal LC can be a reliable indirect pulp-capping agent in primary teeth. Clinical significance: Indirect pulp capping (IPC) is a very extensively employed treatment regimen to manage extensive caries. For many decades, calcium hydroxide has been regarded as the benchmark of pulp capping materials. With several advancements in materials for restoration, TheraCal LC a resin-modified, light-cured calcium silicate-filled liner serves as a pulp-capping agent and dentin protector, promoting pulp healing and preserving vitality as an obstacle cum protector of the dental pulp complex.
Zenodo (CERN European Organization for Nuclear Research), Oct 4, 2022
Turkish Online Journal of Qualitative Inquiry, Jul 1, 2021
Supernumerary teeth are considered as a bizarre rise in the number of naturally occurring teeth. ... more Supernumerary teeth are considered as a bizarre rise in the number of naturally occurring teeth. Only some examples of nonsyndromic multiple supernumerary teeth have been reported in literature. In this report, we present a case of multiple unerrupted bila syndrome in a seven year old child as a result of a casual finding during routine X ray study. A panoramic radiograph revealed multiple impacted supernumerary teeth which were diagnosed during routine radiog diagnosis of idiopathic hyperdontia was given. In such cases, management should be planned by a multidisciplinary approach.
Journal of Clinical and Experimental Dentistry, 2019
Remineralization is the process of returning mineral ions into a hydroxyapatite structure charact... more Remineralization is the process of returning mineral ions into a hydroxyapatite structure characterized by mineral deposition on the enamel surface. The use of fluorine as remineralization agent with side effects such as fluorosis. Cocoa bean extract contains theobromine that can be used as an alternative remineralization ingredient. Cocoa (Theobroma cacao) as natural materials can be utilized in the field of dentistry with the extract containing theobromine, which is expected to be an alternative to fluoride. Some research on Theobromine (3,7-dimethylxantine) contained in the cocoa fruit extracts, found that theobromine can be used as a natural ingredient to prevent dental caries. This paper reviews the remineralisation potential in dental caries and the possibility of being an adjunct to fluoride.
Journal of International Oral Health
Aim: The introduction of a new drug for preventing dental caries, suitable for localized release ... more Aim: The introduction of a new drug for preventing dental caries, suitable for localized release in the mouth, has become a need of the hour. Silver nitrate has long been used in dentistry because of its sclerosing and dehydrating properties. This study aimed at evaluating the antimicrobial action of two concentrations of silver nitrate (0.05 N, 0.1 N) against Streptococcus mutans and Candida albicans and at comparing it with 2% chlorhexidine (CHX) and 0.9% saline. Materials and Methods: Standard strains of S. mutans and C. albicans were cultured on agar plates and disks impregnated with four test solutions, namely Group I: 2% CHX, Group II: 0.1 N silver nitrate, Group III: 0.05 N silver nitrate, and Group IV: 0.9% N Saline was incorporated into these. The plates were then incubated and inhibition zone was measured using calipers. The measured values were subjected to statistical analysis using one-way ANOVA and Tukey’s post hoc test for a pairwise comparison. Results: The analysis using one-way analysis of variance (ANOVA) showed a highly significant difference among different groups for both organisms. Further analysis using post hoc test in case of S. mutans showed not much significant difference between group II and group III, but a significant difference was exhibited when compared with group 1 and group IV. In the case of C. albicans, there was a highly significant difference among each group (II>III>1>IV). Conclusion: The 0.05 N and 0.1N silver nitrate showed significant antimicrobial action, with 0.1 N AgNO3 being the most effective.