Year : 2019

Volume : Volume 10

Issue : Issue 1s

Address for correspondence :
Dr. Girish Kumar.
girishkumar@gmail.com

Abstract

Background:  Surface quality of a provisional crown and fixed partial denture is a very important property in maintaining periodontal health and aesthetics. Surface roughness of the provisional crowns and fixed partial denture depends on materials used for its fabrication as well as matrices. Therefore it was found essential to evaluate the influence of matrix type on surface roughness of resins. Materials & Method: A total 60 samples were fabricated using three different temporization materials (Protemp 4, Auto polymerising resin and Structure 2), matrix material used to fabricate sample were tropicalgin, Aquasil (Polyvinyl siloxane) and bioplast. These sample nwere subjected to thermocycling and surface roughness were recorded. The obtained data were subjected to suitable biostatic tests. Results and Conclusion: Within the limitations of the study it was concluded that, Matrix type and thermocycling did not significantly affect the surface roughness of DPI resin, Protemp IV and Structure II. Structure II gave significantly smoother surface than Protemp IV and DPI resin regardless of the matrix used. The three matrix type revealed a difference in the surface roughness of the DPI resin but it was not statistically significant for the study.

Keywords: Surface Roughness, Provisional Restoration, Thermocycling, Matrix Type.