Suresh Sajjan

Incorporation of Antimicrobial Macromolecules in Acrylic Denture Base Resins: A Research Composition and Update

Contemporary research in acrylic denture base materials focuses on the development of a novel poly(methyl methacrylate) (PMMA) resin with antimicrobial properties. Although PMMA resin has fulfilled all the requirements of an ideal denture base material, its susceptibility to microbial colonization in the oral environment is a formidable concern to clinicians. Many mechanisms including the absence of ionic charge in the methyl methacrylate resins, hydrophobic interactions, electrostatic interactions, and mechanical attachment have been found to contribute to the formation of biofilm. The present article outlines the basic categories of potential antimicrobial polymer (polymeric biocides) formulations (modified PMMA resins) and considers their applicability, biological status, and usage potential over the coming years.

Changes in Oral Health‐Related Quality of Life in Elderly Edentulous Patients after Complete Denture Therapy and Possible Role of their Initial Expectation: A Follow‐Up Study

Purpose An edentulous patients psychosocial attributes that may have influence on the oral health-related quality of life (OHRQoL) are given little consideration in therapeutic care. The aim of this study was to assess the impact of complete denture therapy on overall OHRQoL in elderly edentulous patients. The possible role of the patients initial expectation toward OHRQoL was also evaluated. Methods and Materials OHRQoL was assessed using the OHIP-EDENT psychometric instrument, and 56 patients participated in the study. The assessment was done at three time points including pretreatment, after 1 month, and after 6 months. Significant differences in the OHIP-EDENT scores between pretreatment to after 1 month and pretreatment to after 6 months were calculated using Wilcoxon Signed Rank test (p < 0.05). Mann-Whitney test was used to analyze the association of patient expectations with OHIP-EDENT scores. Result Statistically significant improvement in OHRQoL after complete denture therapy at both 1 and 6 months postinsertion was evident. Statistically significant difference in the mean scores between the genders was observed after 6 months. There was no statistically significant difference in the levels of dysfunction, discomfort, and disability associated with oral problems between moderate and high expectation group at any time point. Conclusion Elderly edentulous patients had an improved overall OHRQoL after complete denture therapy, and female patients had appreciably better OHRQoL than their male counterparts. A patients initial expectation did not have significant influence on overall OHRQoL.PURPOSE An edentulous patients psychosocial attributes that may have influence on the oral health-related quality of life (OHRQoL) are given little consideration in therapeutic care. The aim of this study was to assess the impact of complete denture therapy on overall OHRQoL in elderly edentulous patients. The possible role of the patients initial expectation toward OHRQoL was also evaluated. METHODS AND MATERIALS OHRQoL was assessed using the OHIP-EDENT psychometric instrument, and 56 patients participated in the study. The assessment was done at three time points including pretreatment, after 1 month, and after 6 months. Significant differences in the OHIP-EDENT scores between pretreatment to after 1 month and pretreatment to after 6 months were calculated using Wilcoxon Signed Rank test (p < 0.05). Mann-Whitney test was used to analyze the association of patient expectations with OHIP-EDENT scores. RESULT Statistically significant improvement in OHRQoL after complete denture therapy at both 1 and 6 months postinsertion was evident. Statistically significant difference in the mean scores between the genders was observed after 6 months. There was no statistically significant difference in the levels of dysfunction, discomfort, and disability associated with oral problems between moderate and high expectation group at any time point. CONCLUSION Elderly edentulous patients had an improved overall OHRQoL after complete denture therapy, and female patients had appreciably better OHRQoL than their male counterparts. A patients initial expectation did not have significant influence on overall OHRQoL.

Failures in implants.

The burning problem that all the implantologists are confronted today is the complications and failures occurring with the treatment of osseointegrated implants. To further optimize the treatment outcome, etiologies and factors associated with implant failures should be elucidated. Conceivably such knowledge is needed for developing adequate treatment and prevention strategies. Hence, this paper is intended to provide an insight regarding various aspects of failures that affect dental implants.

Fabrication of fixed partial dentures using functionally generated path technique and double casting

Harmonious occlusion is a critical requirement for successful oral rehabilitation. Conventional techniques of construction have been unsuccessful in producing a prosthesis that can be inserted without intraoral occlusal adjustment. This article discusses the use of functionally generated path technique with double casting to fabricate fixed partial dentures. The merits of this approach and the technique involved are discussed in detail.

A Comparative Evaluation of Shear Bond Strength of Porcelain and Composite Using Different Bonding Agents - An In Vitro Study

ObjectiveThe purpose of the present in vitro study is to compare and evaluate the shear bond strength of porcelain and composite using different bonding agents.Materials and methodsSixty-three porcelain pellets were prepared and were divided into 9 groups. Three surface treatment and two bonding agents were evaluated. The surface treatment were: 1) sandblasting; 2) etching with 35% phosphoric acid; and 3) etching with 8% hydrofluoric acid. Applying bonding agents Scotch bond adhesive and clearfil liner bond 2V and combination of these treatments. Composite resin was condensed and light cured for 60 seconds on the porcelain specimens which were stored in distilled water at 37°C for 24 hours before mechanical testing.ResultsThe bond strength were significantly different according to ANOVA F-test (F = 6.28, p < 0.01) and Duncan’s Multiple Range Test. Eight percent hydrofluoric acid showed higher bond strength when compared to 35% phosphoric acid etching and sandblasting by 50 micron aluminum oxide. Highest bond strength was observed with hydrofluoric acid + clearfil.ConclusionEtching with 8% hydrofluoric acid + clearfil liner bond showed higher bond strength when compared to hydrofluoric acid alone. This is indicative that effect of silane and etching can be use to improve mechanico chemical bonding. Among bonding agents used clearfil liner showed higher bond strength when compared to scotch bond adhesive.

Use of PowerPoint presentation as a teaching tool for undergraduate students in the subject of gerodontology

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.

A comparative study to evaluate different impression technique in relation to accuracy of the occlusal plane in fixed partial denture

Introduction: The purpose of this study was to evaluate and compare different impression techniques in relation to accuracy of the occlusal plane. Materials and Methods: Twenty impressions were made with different techniques and casts were fabricated and discrepancy in the occlusal plane was measured using microcator. Five impressions for each of the technique were made using polyvinyl silicone and impression poured with type IV die stone. The discrepancies in the occlusal plane were measured and compared. Results: Casts poured with custom tray yielded the most accurate models from the impression and the values were statistically significant. Conclusion: Impression technique using custom tray yielded most accurate model from the impressions. Among relining putty with spacer on the prepared area produced more variation in occlusal plane.