Aim: The aim of this study was to evaluate and compare radiographically the amount of crestal bone resorption during healing and loading period in single implant versus two implant–retained mandibular overdentures in totally edentulous patients. Materials and Methods: A total of 20 edentulous patients (12 male and 8 female) with age range of 58.6 years were included in this clinical trial which was completed in four phases (clinical and radiographic diagnosis, surgical phase, implant loading phase, and bone level measurement phase). The eligible patients were randomly allocated in two equivalent groups of 10 participants each per group. The allocation was in 1:1 ratio via randomized chit method. Group I included the case group, that is, single implant, and Group II included the control group, that is, two implants located in mandible. A total of 30 implants were placed in Group I and 20 implants in Group II. Digital intraoral peri-apical radiographs (RVG 5100) were used for measuring the bone level immediately after implant surgery, 1 month, 3 months, 4 months, and 6 months. Result: This study showed that there was a mean crestal bone loss of 0.7 mm between the tip of the implant and alveolar crest at the end of 6 months after implant placement in single implant Group I while 0.67 mm in case of Group II two-implant-retained mandibular overdentures. The percentage of crestal bone loss after 6 months follow-up was 6.45% in Group I which was statistically insignificant compared with Group II where 6.25% of bone loss was recorded. Conclusion: Single implant–retained mandibular overdentures could be used as another alternative treatment option for completely edentulous elderly patients with severely resorbed ridges and financially and systemically compromised conditions.

Introduction: For the patient’s dissatisfaction with the prosthesis, dentist must realize that a patient’s judgment of the treatment outcome is what defines prosthodontic success. All patient’s need is to have a denture which is firm and stable during function. An ill-fitting denture not only brings frustration to the patients but to the dentists as well. So all probable reasons for the looseness of complete denture should be evaluated by the dentist and hence every possible attempt should be made by the dentist to correct it. Aims and Obectives: The aim of this study was to assess the knowledge of looseness of newly fabricated complete denture and its management among dental students of third year, final year and internship, studying in an undergraduate dental college, in the Imphal city of Manipur. The objective of this study was to assess the relationship between the complete knowledge of complete denture fabrication and their practical implementation in the complete denture fabricational procedure. Materials and Methods: A descriptive, cross-sectional survey was conducted using a self-administered questionnaire involving the dental students of 3rd, 4th year and the students doing internship in the Department of Prosthodontics and Crown & Bridge at RIMS, Dental college. Total of 150 students participated in the study. Participants were distributed in three groups having 50 students each from 3rd year, 4th year, and students doing internship. All the  participants signed an informed consent before filling the questionnaire. Descriptive statistics included computation of frequencies and percentages. Nonparametric test, namely, chi-square test, was used for further data analysis; p-value <0.05 was considered statistically significant and vice versa. Results:. Among all 150 participants who were subjected to self-administered questionnaire, seventy eight (78) subjects (52%) reported that looseness was because of improper secondary impression. Eight (08) subjects (05.33% ) reported that looseness was because of under extension of the green stick compound for peripheral tracing. Three (03) subjects (02%) reported that looseness was because of the overextension of the flanges in peripheral tracing or border moulding. Fifty eight (58) subjects (38.66%) reported that looseness of the newly fabricated complete denture was because of improper posterior palatal seal area record. Three (03) subject (2%) reported that they were unaware of the reasons for the looseness of newly fabricated complete denture. Conclusion: The majority of the students of dental college have limited knowledge of the exact reason for the looseness of newly fabricated complete denture on the day of denture delivery. Students faced problem in its management in dental clinics. The looseness of a newly fabricated complete denture was because of the overextensions of the denture flanges as evaluated by Prosthodontist. Students of dental college should be made aware for the all the probable reasons for looseness of a newly fabricated complete denture. In 90% of the cases it is seen that overextension of the flanges is the most probable reason for an ill fitting, newly fabricated complete denture. Keywords: Complete Denture, Ill fitting denture, Peripheral tracing, Denture Flanges, Secondary Impression, Posterior Palatal Seal.

Aim: The aim of this study was to detect the effect of flap technique on crestal bone resorption during healing and loading period in implant supported overdentures. Material and Methods: A total of 8 patients, 5 male and 3 female, ranging from 50 to 70 years of age, having completely edentulous maxillary and mandibular arches were selected for the study the whole study was conducted in 4 phases. In the 1st phase Clinical Diagnosis, Treatment Planning & Denture Fabrication was done. The selected subjects will be diagnosed and treatment planning for new denture fabrication was done. In the 2nd phase the denture insertion was done and if required occlusal correction was be performed. After initial recall visit, patient was recalled again after one week of denture usage. In this visit 1st stage of implant surgery was conducted. Dental implant in the mid symphyseal region was placed following all the surgical protocols. Immediately after surgery first IOPA with RVG was taken. After the surgery the denture was relieved at the surgical site and patient was asked to use the same denture. Subsequently after 4 weeks and after 12 weeks of healing the second and third IOPA with RVG was taken. The computer software was used for measuring the bone level. After 3 months of Osseointegration period in phase 3, the loading of the implant was done by incorporating O ring attachment. Again after 4 weeks and after 12 weeks of loading the fourth and fifth IOPA with RVG was taken. The magnification error was checked. The data obtained was saved using Paint software used in Microsoft 8.1. The data so obtained for measuring the bone levels with the help of computer software (RVG 5100) was tabled and statistical analysis was done. Results: The mean rate of crestal bone loss with time was more during first month (0.35mm) then it decreased in 3rd month (0.51mm) and further decreased during 4th month (0.59mm) and 6th month (0.70mm) follow up period. Conclusion: The concept of single implant supported overdentures provides another option for completely edentulous elderly patients with severely resorbed mandibular ridge & with economic constraints in developing countries. Keywords: Dental implants, Overdenture, Residual Alveolar Ridge, Crestal Bone loss, Intraoral Digital Radiography (RVG 5100).

Dental practitioners are at risk due to direct contact with possibly infected patients as front-line health care professionals during the coronavirus (COVID-19) pandemic. Therefore, it is of interest to measure the anxiety, fear, awareness and economic effect of the epidemic on Indian dentists at work .This study was conducted utilizing an online survey questionnaire and Google forms from August 22nd to August 23rd, 2021. A total of 485 doctors took part in the survey. The questionnaire included open-ended, closed-ended, and Likert five-point scale items to measure anxiety, awareness, and the financial impact of COVID-19 on dentists. The Mann-Whitney test was used for two groups. The Kruskal–Wallis test was used as a post-hoc test for multigroup comparisons. The average age of the participants was 36.5 ± 9.2 years, with the majority (75.21%) being just graduate dentists. More than 80.1% of interviewees expressed concern about contracting COVID-19. Younger dentists and females have higher levels of anxiety than older dentists. The level of awareness and practice of COVID-19 precautions and infection-control measures among these dentists (94.1%) was found to be high. This is due to age, qualification, and designation (except GP vs. Specialist).