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Polished dentures obtained from the laboratory require adjustment during insertion. A smooth surface on acrylic resin can be obtained using a chairside protocol for polishing using silicone polishing agents and polishing media. The aim of this paper is to study the effect of three different polishing agents-pumice, universal polishing paste and Brite-O on the surface finish and hardness of two types of denture base acrylic resins-auto polymerizing and heat-activated acrylic resin materials.

Aim:Though different teaching learning media have been employed in the instruction of geriatric dentistry, their efficacy has not been adequately evaluated. This study was conducted with the aim to determine the efficacy of a PowerPoint presentation in teaching gerodontology.Materials and Methods:This is a prospective follow-up study using a pre- and post-intervention assessment. A pilot study was conducted on the final year students to check the feasibility of the study. A convenience sampling procedure was used. All interns (n = 80) of the Modern Dental College and Research Centre, Indore, India were invited to participate. Interns completed a 24-item questionnaire documenting their current knowledge on gerodontology. One week after a 30 min PowerPoint presentation on gerodontology, the same interns completed the same questionnaire again, providing an indication of the efficacy of the learning tool. Paired t-test and McNemar test were employed for statistical analysis.Results:A statistically significant difference was observed in pre- and post-intervention scores (P < 0.05).Conclusion:The results of this study indicated that PowerPoint presentation can be used as an effective tool for improving the knowledge regarding gerodontology.

Ten identical implants were equally divided into 2 groups. In the immediate placement (control) group, implants were placed immediately following osteotomy preparation, and in the delayed placement (test) group, implants were placed 2 weeks following osteotomy preparation, in rabbit femurs. Implant stability quotient values for both groups were measured using resonance frequency analysis immediately following placement and at day 40. Results were statistically analyzed and indicate that delayed placement of implants leads to faster rates of osseointegration.