Issue One 2021
2021, Vol. 8, issue 1, (April)
Evaluation of surface roughness of four restorative materials, used for restorations in primary dentition
Aim: The aim of this study is to evaluate the surface roughness values of four restorative materials, used for restorations in primary dentition. Materials and methods: Five disc-shaped specimens were prepared for each material using a cylindrical Teflon mold with dimensions 5×2 mm, covered with Mylar strips. After setting, the specimens were polished sequentially with coarse, medium and fine aluminum oxide discs. The mean surface roughness of all the samples after polishing was measured using a surface profilometer. Results: Fuji IX GP showed statistically significant higher surface roughness values. There was no statistically significant difference in roughness values between the other three materials, although the giomer Beautifil II demonstrated the lowest roughness values. Conclusions: It can be concluded that the composition (presence and absence of resin) and particle size of the restorative materials affect their surface characteristics and their degree of polish ability as the material with larger particles size and without resin content, Fuji IX GP, demonstrated significantly higher surface roughness values.
Authors:Viktoriya Gateva; Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University- Sofia;
Nataliya Gateva; Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University- Sofia;