Evaluation of Surface Roughness of Ceramic and Resin Composite Material Used for Conservative Indirect Restorations, after Repolishing by Intraoral Means

• DOI: 10.1111/jopr.12390
• Publication Date: 2015-10-22T07:12:30Z
• Authors: Areti D. Vrochari; Aikaterini Petrop...; Vasilios Chronopo...; Olga Polydorou; Ward Massey; Elmar Hellwig
• Keywords: Gloss (optics); Dental porcelain

Abstract Purpose To evaluate and compare the mean surface roughness (Ra) of one ceramic resin composite material used for indirect restorations, after grinding repolishing by intraoral means. Materials Methods The materials were lithium disilicate glass IPS e.max Press (EMP) restoration system Gradia (GR). Twelve specimen disks prepared from each according to manufacturer material. Five initial measurements Ra (Ra 1 ) made on as a referral basis, specimens ground with fine (red) diamond bur. repolished using (a) Komet Dialite Polishing Kit EMP (b) Enhance Finishing System Prisma Gloss Paste GR. final 2 performed specimen. All laser profilometer. Scanning electron microscopy (SEM) was also visualize morphology morphological changes specimens’ repolishing. Results A highly significant difference found between 1EMP 2EMP ( p < 0.001), 1GR 2GR well when compared in pairs. 0.001) ΔRa GR , being higher than . values at all times. SEM revealed that both surfaces presented irregularities; however, major voids craters present. Conclusions perform better polished means Both exhibited above critical threshold increased plaque accumulation periodontal inflammation. If enamel‐to‐enamel occlusal contact areas is considered baseline, clinically acceptable