The Effect of Finishing and Polishing Sequences on The Surface Roughness of Three Different Nanocomposites and Composite/Enamel and Composite/Cementum Interfaces
| Autor: | M G Arakelyan, Inna Sokhova, M A Polyakova, Vladlena Y. Doroshina, K. S. Babina, N. E. Novozhilova |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Dental composite
Materials science dental finishing and polishing General Chemical Engineering Composite number Polishing 02 engineering and technology Surface finish composite/cementum interface Article contact stylus profilometry lcsh:Chemistry 03 medical and health sciences 0302 clinical medicine stomatognathic system Surface roughness composite/enamel interface General Materials Science Composite material Enamel paint 030206 dentistry 021001 nanoscience & nanotechnology Gloss (optics) nanocomposite resins stomatognathic diseases lcsh:QD1-999 visual_art surface roughness visual_art.visual_art_medium Profilometer 0210 nano-technology |
| Zdroj: | Nanomaterials, Vol 10, Iss 1339, p 1339 (2020) Nanomaterials Volume 10 Issue 7 |
| ISSN: | 2079-4991 |
| Popis: | The purpose of this study was to investigate the effect of final surface treatment and dental composite type on the roughness of the composite surface, composite/enamel interface, and composite/cementum interface, as well as on the polishing time. Class V cavities prepared in extracted teeth (n = 126) were restored using one of the three nanohybrid composites with different filler sizes. The specimens were randomly assigned to three different finishing and polishing sequences. The roughness (Ra) of the investigated surfaces was measured using the contact profilometer. The time required to achieve visible gloss was documented. The data were analyzed using ANOVA with Tukey&rsquo s post hoc test (p < 0.05). There was no significant influence of the composite type on the restoration surface roughness (p = 0.088), while the polishing method had a significant impact (p < 0.001). The Ra of the composites ranged between 0.08 µ m and 0.29 µ m, with the lowest values (0.09 µ m ± 0.05 µ m) found in the aluminum oxide disc group (p < 0.001). The time to achieve a visible composite gloss was influenced by the polishing method, composite type, and interactions between these factors (p < 0.001). The interface roughness was significantly greater than that of the composite surface (p < 0.001), and depended on the composite type and polishing system employed. |
| Databáze: | OpenAIRE |
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