Influence of preheating on mechanical and surface properties of nanoceramic resin composite | ||
| Egyptian Dental Journal | ||
| Article 14, Volume 68, Issue 1 - Serial Number 5, January 2022, Pages 1095-1100 PDF (820.02 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/edj.2021.106971.1876 | ||
| Authors | ||
| Radwa Eltoukhy1; Ali Atef* 1; Salah Mahmoud2 | ||
| 1Clinical Assistant Professor, Operative Dentistry Dept, Faculty of Dentistry, Mansoura University, Egypt | ||
| 2Clinical Professor and Chairman of Operative Dentistry Dept, Faculty of Dentistry, Mansoura University, Egypt | ||
| Abstract | ||
| Abstract Objective: To assess the influence of preheating on microhardness and surface roughness of nanoceramic resin composite. Methods: Twenty-eight disc-shaped specimens of nanoceramic resin composite Ceram X Duo (Dents ply De Trey, Konstanz, Germany) were made using a mold and then randomly assigned into two groups (with and without preheating where n=20). Each group was subdivided according to the test into two subgroups (n=10). Vickers hardness measurements for the top and bottom surfaces of the specimens were evaluated by tester machine and surface Roughness (Ra) was assessed using the Atomic Force Microscope. Results: Results of both tests showed no significant difference among specimens either preheated or not. Nevertheless, microhardness results revealed significant difference if top surfaces compared to the bottom ones either the specimens were preheated or not. Surface roughness results exhibited no significant difference among the preheated and non-preheated specimens. Conclusion: Preheating had a certain effect on the mechanical and surface properties of nanoceramic resin composite. Keywords: preheating; nanoceramic composite; microhardness; surface roughness Clinical significance: Preheating can be clinically beneficial for promoting the manipulation, marginal sealing, and surface features of nanoceramic resin composite. | ||
| Keywords | ||
| preheating; nanoceramic composite; microhardness; surface roughness | ||
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