Payal Sharma - Academia.edu (original) (raw)

Papers by Payal Sharma

International Journal of Current Microbiology and Applied Sciences, 2018

Journal of Dental Specialities, 2021

Our aim was to quantitatively assess the relationship of smile esthetics variables with various t... more Our aim was to quantitatively assess the relationship of smile esthetics variables with various types of anterior overjet (OJ) malocclusion, and identify the cephalometric factors affecting smile measurements in different types of anterior overjet malocclusion. 90 patients undergoing orthodontic treatment in the Department of Orthodontics were selected for this retrospective study based upon the inclusion criteria. The patients were divided into the following groups according to their OJ: Group 1 (0-4mm), Group 2 (>4mm), Group 3 (<0mm).The upper lip height, and inter-labial gap differed significantly among the groups, whereas arc ratio, tooth number, upper midline, buccal corridor, smile index, arch form index and lower tooth exposure did not significantly among the groups. Some smile variables (upper lip height, inter-labial gap) differed significantly among different types of anterior overjet malocclusion. This study confirmed that the smile pattern varies between different ...

Indian Journal of Mental Health(IJMH), 2016

Internet addiction is a new age addiction that is affecting adolescents in schools and colleges a... more Internet addiction is a new age addiction that is affecting adolescents in schools and colleges alike. The current review summarizes the causative factors, models and types of internet addiction along with the methods used in its management. It is important to realise that there is a need for a holistic management in cases of internet addiction as very often there are associated comorbid psychiatric disorders that need management as well. The review though not exhaustive summarizes the basic models of internet addiction and looks at management approach from a clinician as well as teacher and parent perspective.

Anchorage in its orthodontic application is defined as resistance to unwanted tooth movement.Almo... more Anchorage in its orthodontic application is defined as resistance to unwanted tooth movement.Almost since its inception references to the term anchorage have been found in the orthodontic literature. In the seventh edition of his book, Angle devoted a chapter to this subject. He stated that there were many means for obtaining anchorage or resistance, including the tooth themselves and sources external to the teeth. An important aspect of treatment is maximizing the tooth movement that is desired, while minimizing undesirable side effects in planning orthodontic therapy, it is simply not possible to consider only the teeth whose movement is desired, reciprocal effects throughout the dental arches must be carefully analyzed, evaluated & controlled.Thus anchorage is one of the major problems in orthodontics and is an important study.

Progressive Horticulture, 2020

Asian Journal of Psychiatry, 2020

Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on ... more Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre-including this research content-immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

journal of orthodontic science, 2020

OBJECTIVE: To evaluate the antimicrobial property of cetylpyridinium chloride (CPC) when polymeri... more OBJECTIVE: To evaluate the antimicrobial property of cetylpyridinium chloride (CPC) when polymerized with cold cure acrylic and to assess the duration of its release from modified acrylic. MATERIALS AND METHODS: CPC was added in different concentrations (0%, 2.5%, 5%, and 10%) to cold cure acrylic resin and 180 acrylic discs were prepared. These were divided into four groups of 45 each depending on the concentration of CPC. The antimicrobial property of the modified acrylic for Streptococcus mutans was tested using disc diffusion assay in agar. The duration of release of CPC from self-cure acrylic was tested with optical density reading of solutions by ultraviolet spectrophotometer. The effect of addition of CPC on diametral tensile strength (DTS) of acrylic was tested using UTM (Instron) and the effect of water aging on modified acrylic was compared with unaged specimens. RESULTS AND CONCLUSION: The normality of the data was checked by Shapiro–Wilktest, and as the data failed to show normal distribution, inferential statistics were performed using nonparametric tests of significance. Antimicrobial activity of modified acrylic increased with increase in CPC concentration. Greatest CPC release was observed on the seventh day with a decrease in release from 7 to 180 days. There was a decrease in the diametral strength of the modified resin and water aging had a significant effect on the DTS of the modified resin.

Journal of Workplace Learning, 2019

Purpose This study aims to identify and classify various competences and competencies that educat... more Purpose This study aims to identify and classify various competences and competencies that educational leaders should essentially possess. Design/methodology/approach The systematic review of the literature was conducted to identify various competences of educational leaders in the institutions. Later, an empirical research was conducted. The data were analyzed through confirmatory factor analysis (CFA) using AMOS 20.0 to classify these competences according to their relative importance considering natural gaps in standardized beta (ß) values. In all, 96 administrators of 35 technical institutions of Punjab (India) offering engineering and management programs and 93 veteran educational experts had responded in a survey. Findings The results of the study identified five competences: pedagogical, leadership, innovative, research and evaluation competences. The competencies “help others in improvement and not blame circumstances”, “set high benchmarks” and “align class activities with ...

Annals of Maxillofacial Surgery, 2019

This case report describes the successful treatment of a patient with facial asymmetry secondary ... more This case report describes the successful treatment of a patient with facial asymmetry secondary to temporomandibular joint ankylosis with a combined orthodontic–surgical approach. Presurgical orthodontics involved surgically assisted rapid maxillary expansion followed by a bilateral sagittal split osteotomy and LeFort I osteotomy to reposition the mandible and correct the canting of the maxilla. The total active treatment period was 24 months. A significant improvement in occlusion and facial esthetics was achieved with treatment.

Dental Press Journal of Orthodontics, 2019

Introduction: Proximal stripping of enamel is a routine clinical procedure employed in orthodonti... more Introduction: Proximal stripping of enamel is a routine clinical procedure employed in orthodontics to create space or for balancing tooth size discrepancies. This procedure may result in heat transfer to the pulp, predisposing it to histopathological changes and necrosis of the pulp tissue. Objective: To measure the temperature changes in the pulp chamber during different stripping procedures. Methods: 80 proximal surfaces of 40 extracted human premolar teeth were stripped using four techniques: diamond burs in air-rotor handpiece with air-water spray; diamond burs in micromotor handpiece, with and without a coolant spray; and hand-held diamond strips. A J-type thermocouple connected to a digital thermometer was inserted into the pulp chamber for evaluation of temperature during the stripping procedure. Results: An increase in the pulpal temperature was observed for all stripping method. Diamond burs in micromotor handpiece without coolant resulted in the higher increase in tempera...

Journal of Electronic Materials, 2019

Zirconia-based ceramic oxides Zr 0.90 Y 0.06 Ce 0.02 X 0.02 O 2Àd (X = Ca, Fe, La, Sr, and Mg) we... more Zirconia-based ceramic oxides Zr 0.90 Y 0.06 Ce 0.02 X 0.02 O 2Àd (X = Ca, Fe, La, Sr, and Mg) were prepared by conventional and microwave processing. The precursors of Zr 0.90 Y 0.06 Ce 0.02 X 0.02 O 2Àd (X = Ca, Fe, La, Sr, and Mg) were prepared by a mixed oxide method and were calcined at 600°C in an electric furnace. The powders were consolidated in pellet form and sintered in a conventional electric furnace at 1400°C for 6 h and compared using microwave energy at 1400°C for 20 min. The structure and microstructure of sintered products obtained by both methods were studied by x-ray diffraction and scanning electron microscopy. Their density and microhardness were also compared. The electrical conductivities of these samples were studied using alternating current impedance spectroscopy. The analysis of the products obtained by microwave aand conventional methods shows that the microwave sintered samples have uniform grain growth, higher density, higher microhardness and higher electrical conductivity than the corresponding conventionally sintered products. The microwave sintered sample of composition Zr 0.90 Y 0.06 Ce 0.02 Ca 0.02 O 2Àd was found to have the highest density and microhardness, as well as the highest electrical conductivity among all of the microwave and conventionally sintered products.

Indian journal of psychological medicine

The recent and rapidly popularized social phenomenon of selfie taking has been showing an increas... more The recent and rapidly popularized social phenomenon of selfie taking has been showing an increasing trend. It is thus imperative to assess the knowledge, attitude, and perception of the groups toward this phenomenon. Selfie taking is associated with younger age groups and hence, we aimed to explore the attitudes toward selfie taking and its relation toward body image and narcissism in medical college students. This was cross-sectional study and had two groups with Group A comprising 92 first year medical students and Group B including 103 postgraduate (PG) medical students from various specialties. They were interviewed in a single session using the scale of attitude toward selfie-taking questionnaire, Body Image Acceptance and Action Questionnaire (BIAAQ), and the narcissistic personality inventory. Scores obtained were computed using basic descriptive statistics and -test where appropriate. A strong positive favorable trend toward selfie taking was noticed among both groups (A = ...

2016 International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET), 2016

In this paper, the enhanced urine powered battery(EUPB) has been designed and proposed for low po... more In this paper, the enhanced urine powered battery(EUPB) has been designed and proposed for low power applications. In EUPB, the human urine has been utilised as a source of energy extraction. The natural neat human urine along with mould HYPHAE (fungus) has been used as an electrolyte in the design. The proposed EUPB consists of hybrid(series and parallel) combination of small single chamber urine powered cells. In urine powered cells, the electrodes have been dipped in electrolyte and the potential across the electrodes has been measured. In EUPB design, the objective is to increase the electrical output of Urine Powered Battery by adding a suitable microbe to the urine which has been employed as anelectrolyte in the system. It has been concluded that the best combination of electrode materials (cathode-anode) is Cu-Al which when used with amalgamation of urine and mould Hyphae leads to increased electrical output voltage and current. The mould driven single urine powered cell (UPC) is capable of generating voltage and current of 0.56V and 0.3mA. The EUPB comprising of 20 UPC's which has been proposed iscapable of generating voltage of 5.06V and current of 0.44mA for 120 hours and can be employed for low power applications.

Journal of Pierre Fauchard Academy (India Section), 2016

Please cite this article in press as: Vishnoi SL, et al. Strategic management of periodontic and ... more Please cite this article in press as: Vishnoi SL, et al. Strategic management of periodontic and periodontic-endodontic lesion associated with palato-radicular groove-Report of three cases,

Journal of Dental Specialities, 2016

Objective: To evaluate frictional forces generated in retrieved aesthetic archwires with differen... more Objective: To evaluate frictional forces generated in retrieved aesthetic archwires with different ligation methods. Materials and Method: A total of 40(20 new and 20 retrieved from the patient’s mouth) Teflon coated 019X025 Stainless steel archwires and 40(20 new and 20 retrieved from the patient’s mouth) conventional 019X025 Stainless steel archwires were used for the study. The retrieved archwires were cleaned in ultrasonic cleaner for 15 minutes and placed in glutaraldehyde solution for one hour. A jig was formed using ceramic brackets without metal slot and a molar tube for the purpose of evaluation of friction forces. The wires were ligated with either stainless steel ligatures or elastomeric modules. The values obtained were subjected to Mann Whitney and Wilcoxon Sign rank test for statistical analysis. Results: The frictional values for conventional Stainless steel wires was less than Teflon coated wires in case of new wires. In case of retrieved archwires there was no difference between conventional or Teflon coated wires. The amount of friction for both Teflon coated and conventional wires decreased on retrieved from the patient. In case of Teflon coated wires the friction was greater with ligatures as compared to modules while in case of conventional Stainless steel wires it was vice-versa. Conclusion: Teflon coated wires when cleaned in ultrasonic cleaner showed reduction in frictional forces with no significant difference in friction generated by both methods of ligation.

2016 IEEE 6th International Conference on Advanced Computing (IACC), 2016

As the dependency on Internet is increasing, the service providers are launching numerous web app... more As the dependency on Internet is increasing, the service providers are launching numerous web applications to facilitate the users. Due to threat of unauthorized access they want to identify their users accurately. In the same way, leakage of sensitive information makes clients aware enough to make sure whom they are dealing with. This leads to the requirement of a Centralized Authentication System(CAS). The involvement of CAS introduces the single sign on capability at client side. Once the individual proves his identity to the CAS, it will be assured to all those services that trust on CAS. There are several existing solutions like Kerberos and SAML. This paper introduces a single sign-on protocol which combines the protocol architecture of Kerberos with the functionality of SAML. Finding the deficits in the SAML architecture we try to improve it by adapting strong protocol architecture. As a proof of concept, we study the formal analysis of the proposed security protocol through different tools like CASPER and SCYTHER.

Baba Farid University Dental Journal, 2013

Thorough knowledge of internal and external root canal morphology contributes to the successful r... more Thorough knowledge of internal and external root canal morphology contributes to the successful root canal treatment. Mandibular molars display considerable variations with regard to the number of roots and rootcanals. One such anatomical variation is the presence of an additional root located distolingually called radix entomolaris. This paper describes two case reports of mandibular first molar with supernumerary distolingual root and provides insight into its endodontic management with the aid of surgical operating microscope.

Drug Development and Industrial Pharmacy, 2015

Cellulose ethers are important materials with numerous applications in pharmaceutical industry. T... more Cellulose ethers are important materials with numerous applications in pharmaceutical industry. They are widely employed as stabilizers and viscosity enhancers for dispersed systems, binders in granulation process and as film formers for tablets. These polymers, however, exhibit challenge during preparation of their aqueous dispersions. Rapid hydration of their surfaces causes formation of a gel that prevents water from reaching the inner core of the particle. Moreover, the surfaces of these particles become sticky, thus leading to agglomeration, eventually reducing their dispersion kinetics. Numerous procedures have been tested to improve dispersibility of cellulose ethers. These include the use of cross-linking agents, alteration in the synthesis process, adjustment of water content of cellulose ether, modification by attaching hydrophobic substituents and co-processing using various excipients. Among these, co-processing has provided the most encouraging results. This review focuses on the molecular mechanisms responsible for the poor dispersibility of cellulose ethers and the role of co-processing technologies in overcoming the challenge. An attempt has been made to highlight various co-processing techniques and specific role of excipients used for co-processing.

Springer Proceedings in Physics, 2015

Active beam stabilization is decisive in numerous applications such as free space optical (FSO) c... more Active beam stabilization is decisive in numerous applications such as free space optical (FSO) communication, military, biomedical etc. FSO communication receivers require very precise and stable pointing mechanism to maintain optimal operation. Any vibration, micro positional drift can affect efficiency and performance of active optical component and introduce an error which propagates throughout optical line [1]. Beam wandering and atmospheric effect also causes the contravention of FSO communication. In this paper we have demonstrated active beam stabilization technique using fast steering mirror (FSM) and Quad detector in closed loop for FSO receiver in laboratory. The quad-detector senses the error voltage according to the position of laser beacon. The error voltage is fed to FSM controller which is used in an external sensor feedback control mode with position feedback from quad photo detector and the FSM rectifies in the desired position.