Within the limitations of this study, it can be concluded that change occurs in the masseter muscle thickness after rehabilitation with complete dentures in the form of increased muscle thickness. However, the thickness of the muscle remains smaller than that of dentate individuals.

Context: Infection control is an important concept in the present day practice of dentistry. Disinfection of dental impressions is part of the daily routine in a dental clinics. After disinfection, it is important that impressions remain dimensionally stable. Aim: The purpose of this study was to compare the effect of chemical disinfectants and ultraviolet (UV) disinfection on the dimensional stability of the polyvinyl siloxane impressions. Objectives: The objective of the study is (1) To evaluate the effect of chemical disinfectant (2% glutaraldehyde and 1% sodium hypochlorite) and UV disinfectant on the dimensional stability of polyvinyl siloxane impression material. (2) Comparative evaluation of the dimensional discrepancy between the cast poured from the polyvinyl impressions material, that is subjected to chemical disinfectant and UV disinfectant to that of cast poured from impressions that were nondisinfected. Materials and Methods: A customized tray was fabricated to make impressions. Impressions were divided into four groups, 10 samples were disinfected with 2% glutaraldehyde for 20 min, 10 samples were disinfected with 1% sodium hypochlorite for 20 min, 10 samples were disinfected with UV light for 20 min, and 10 samples were not subjected to disinfection which served as control group. All the samples were poured after 30 min in die stone. Measurements were recorded using traveling microscope of 0.001 accuracy. Statistical analysis used in this study was the one-way ANOVA test. Results: The result showed significant dimensional changes in samples disinfected with 2% glutaraldehyde and 1% sodium hypochlorite, whereas samples disinfected with UV disinfectant unit showed no significant dimensional changes when compared with control group samples. Within the chemical groups, impressions disinfected with 1% sodium hypochlorite showed more discrepancy in the dimensions when compared to the 2% glutaraldehyde disinfected group. Conclusions: UV light disinfectant can be safely used to disinfect impressions as compared to chemical disinfectants in clinical prosthodontic procedures.

Background Obstructive sleep apnea (OSA) is due to the obstruction of the upper airway during sleep. This condition is often associated with multiple symptoms and co-morbidities. There are many treatment options mentioned in the literature to manage OSA, among which interventional option of continuous positive airflow (CPAP) and non-interventional option, i.e., mandibular advancement device (MAD), which is an oral appliance (OA), are the most preferred ones. This study aims to evaluate the efficacy of customized maxillary oral appliances with mandibular advancement devices in moderate OSA patients. Methods A prospective interventional study with a randomized controlled trial will be carried out involving 40 participants (sample size), with an apnea-hypopnea index (AHI) > 15–30, recorded on polysomnography (PSG). Study participants will be randomly divided into the following treatment groups: control group or group subjected to mandibular advancement device (MAD, n=20) and second group subjected to customized maxillary oral appliance (CMOA, n=20). Baseline assessment of apnea/hypopnea index (AHI), oxygen saturation in blood, percentage of rapid eye movement, electroencephalogram, electrocardiogram, oro-nasal airflow via a pressure transducer, and Epworth Sleepiness Scale will be done. Then both study group participants will receive their respective appliances. And after one month and three months of delivery of the appliance, all the parameters, i.e., AHI, oxygen saturation in blood, percentage of rapid eye movement, electroencephalogram, electrocardiogram, oro-nasal airflow via a pressure transducer, and Epworth Sleepiness Scale will be re-evaluated and compared with the baseline measurements. Descriptive and analytical statistics will be done. SPSS (Statistical Package for Social Sciences) Version 20.1 will be used as statistical software. The statistical significance between the two groups after one month and three months will be evaluated at p< 0.05. Discussion We expect, customized maxillary oral appliance to be more efficient in managing moderate OSA, in comparison with MAD. If the hypothesis of the present study is confirmed, then this customized maxillary appliance will be quoted as a “gold standard” for managing moderate OSA. Trial registration CTRI/2020/07/026936 Registered 31 July 2020.

Gagging is an involuntary protective reflex. Some patients have an extremely low threshold for the gag reflex. A severe gag reflex can be a big obstacle in certain dental procedures especially during the making of a maxillary impression. Many dental patients avoid going to the dentist because of an abnormally severe gag reflex. Treating such group of patients can be stressful and a time-consuming experience, both for the dentist and for the patient. The main aim of this article is to understand the etiology and effective management of such patients for a stress-free and fruitful clinical practice.

Background: Loss of teeth affects the masticatory ability and overall health of the patient especially posterior teeth as they contribute more to mastication as compared to anteriors. Loss of teeth can lead to undesirable consequences and early rehabilitation with any type of prosthesis can lead to desirable changes and thus missing teeth should be replaced as soon as possible. Aims and Objectives: To determine the change in masticatory ability and quality of life (QoL) after replacement of missing posterior teeth by fixed dental prosthesis. Methodology: Maximum bite force was recorded before and after treatment. Also a self-perceived questionnaire was filled by the patient to assess the change in QoL. Patients with missing posterior teeth were included. Patients with acute infections or systemic diseases were excluded. Results: Significant change (p=0.0001) in both masticatory ability and QoL of the patient was seen. The co-relation of both was clinically significant while statistically non-significant (p=0.77). Results were significant for both the studied parameters but co-relation between them was no significant. It is because of the patients perceived satisfaction of the overall treatment. Conclusion: Rehabilitation of posterior teeth improves mastication and also overall oral health related QoL.

Purpose: The prospective case–control study aimed at comparing bone resorption at prospective implant sites in anterior mandible between diabetic and nondiabetic patients using digital volumetric tomography (DVT) and establishes a correlation between glycemic control and residual ridge resorption. Materials and Methods: Twenty apparently healthy and 20 type 2 diabetic edentulous male patients between the age group of 55–65 years providing with written consent were recruited in the present study. First-time denture wearers were considered who were edentulous for at least 1 year. Glycated hemoglobin (HbA1c) analysis of all individuals were done to affirm the diagnosis and quantify glycemic control. DVT of all the individuals were performed and bone height was determined at 5 prospective implant sites were determined, on the same scans Wical and Swoope method was used to determine the residual ridge resorption on the right and left side of mandible for all the individuals. The data wer tabulated and descriptive and analytical statistics were performed to compare bone resorption between diabetic and nondiabetic groups. Pearson's correlation was carried out to establish correlation between glycemic control and residual ridge resorption. Results: There was no statistical difference between the bone height measurements at prospective implant sites between diabetic and nondiabetic groups. The residual ridge resorption was more in diabetics when compared to nondiabetics, and a significant moderate negative correlation existed between the glycemic control and residual ridge resorption on left (r = −0.541; P ≤ 0.001) and right (r = −0.408; P = 0.009) side of the mandible. Conclusion: It can be concluded from the present study that bone resorption at prospective implant sites is statistically similar in diabetics when compared to nondiabetics. Patients with poor glycemic control show increased residual ridge resorption.

The present study evaluates the effect of rehabilitating completely edentulous patients with complete denture prosthesis on temporomandibular disorders (TMD). The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) standards were used to perform this systematic review, primarily to describe the technique. Manuscripts published between 1965 and December 31, 2021, were searched in the two most common electronic databases, PubMed and Cochrane Library. To find relevant scientific papers on the influence of complete dentures on temporomandibular disorders, an electronic pursuit of peer-reviewed articles confined to the English language and a dental survey were undertaken. Two observers reviewed the abstracts separately and chose five full-text papers that met the inclusion requirements. Due to the heterogeneity of the data provided, a meta-analysis could not be performed. The result of complete dentures on temporomandibular problems was studied in detail in five peer-reviewed papers. The result of the present study concluded that the complete denture could act as a conducive treatment option to the revocation of TMD for elderly edentulous patients.

Background: A Temporo-mandibular disorder (TMD) itself is a cumulative terminology used to indicate the situations which entails the pain alone or in association with dysfunction of the Temporomandibular joint (TMJ) with or without involving the associated structures. One of the main cause of developing TMD is the loss of tooth. The completely edentulous patients also have reported high prevalence of TMD as in dentulous patients.  Methods: It is a prospective interventional study that will be carried out in three years. The sample size will be those completely edentulous subjects, who has not used dentures for a duration of  six  months to five years  of tooth extraction. Such subjects will then be subjected to anamnestic component of Helkimos Index for screening purpose.110 subjects exhibiting mild to severe signs and symptoms of Temporomandibular disorders will be considered as the study participants for the study. Study participants will be categorized as Group A (study participants having mild symptoms of TMD, n=55) and the second will be Group B (study participaants having severe symptoms of TMD, n=55). The Craniomandibular Index will be used to score the severity of the TMD before denture insertion. The initial recorded score will be then correlated with the score obtained after 3 months of delivery of denture. Descriptive as well as analytical statistics will be performed. The statistical relevance among the Group A and Group B before intervention and after 3months of intervention will be assessed at p<0.05.  Discussion: Through the study results we anticipate a fall in CMI score i.e improvement by lowering the intensity of TMD due to intervention by complete dentures in completely edentulous subjects. In case the above Hypothesis is not proved, then prevalence of TMD among patients who are completely edentulous needs to be anticipated with the factors such as anatomical or pathological diversities in TMJ and not to be associated with changes in vertical dimensions because of teeth loss.