Document Type : Original Article
MSc Student, Msc Student, Conservative Dentistry Department, Faculty of Dentistry, Minia University
Associate Professor, Conservative Dentistry Faculty of Dentistry.sinai University Kantara Branch, Cairo, Egypt
Lecturer Of Conservative Dentistry, Faculty of Dentistry, Minia University
Aim: To evaluate the Surface Roughness of Bis-GMA Free Resin Composite and Bis-GMA Containing Resin Composite.
Material and Methods: Two resin composites were assessed, Bis-GMA free composite (Admira Fusion) and Bis-GMA containing composite (Grandio). A total of 80 resin composite specimens were prepared in a Teflon mold (10 mm x 2 mm), categorized into two groups of (40 specimens) each was tested based on the type of resin composite, each group was categorized into 4 subgroups based on tested immersion solutions (n=10). Immersion solution used were artificial saliva, Coffee, Coca-Cola, and Tea. Readings of surface roughness (Ra) was obtained by profilometer after 24 hours, 2 weeks and one month of exposure to respective solutions.
Results: In terms of statistical significance, there was no difference between Bis-GMA Free Resin Composite and Bis-GMA Containing Resin Composite. Specimens immersed in cola showed the highest mean value of surface roughness among the different tested solutions.
Conclusion: Both tested types of resin composite have similar surface roughness behavior. All tested storage solutions caused surface roughness except artificial saliva. Cola caused marked surface roughness in both resin composites. Surface roughness was time-dependent, increasing with the passage of time.