Oral Health and Dental Management

Preparation and evaluation of particle size and its distribution in a resin composite prepared by dental amalgam powder through scanning electron microscope

4^th Asia Pacific Congress & Expo on Dental and Oral Health

July 27-29, 2015 Brisbane, Australia

Mumtaz ul Islam

Posters-Accepted Abstracts: Oral Health Dent Manag

Abstract:

Background: Dental resin composite comprised of a matrix reinforced with fillers, different fillers were used for preparation of resin composite. Dental amalgam powder incorporation in a resin devoid of fillers and its evaluation through scanning electron microscope (SEM) was performed in this study. Aim: Evaluate through SEM a resin composite prepared by dental amalgam powder as filler. Material & Method: Commercially available bonding agent and dental amalgam powder was mechanically mixed through an amalgamator in a ratio of 20%. Particle size was evaluated before and after mixing and particle distribution in the resin composite matrix was evaluated through SEM and measurements were performed through Adobe Acrobate Reader soft ware. Results: Mean values of particles were 15.20 ?m for dental amalgam powder, which when mixed with bonding agent was 12.14 ?m. Particle distribution on the basis of size after mixing with resin was found nonsignificant. Two tailed T- test when applied result was 0.13 through SPSS version 16 (p ? 0.05). Conclusion: An even filler particle distribution of the resin composite can be achieved by mechanical mixing dental amalgam powder with resin through amalgamator. Significance: Mechanical mixing of fillers in a resin composite through amalgamator is an uncomplicated procedure especially for experiments. Recommendations: Dental amalgam powder can be used as filler when mixed with a bonding agent and acts as an intermediate base with inherent antiseptic properties.