全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

The effect of polishing protocol on surface gloss of different restorative resin composites

DOI: https://doi.org/10.1080/26415275.2019.1708201

Full-Text   Cite this paper   Add to My Lib

Abstract:

Abstract Aim: The purpose of this in vitro study was to determine the effects of different polishing protocols on the surface gloss (SG) of different commercial dental resin composites (RCs). Material and methods: A total of 147 block-shaped specimens (40?mm length × 10?mm width × 2?mm thick) were made from conventional RCs (G-aenial Ant. and Flo X), bulk-fill RC (Filtek Bulk Fill), fluoride-releasing RCs (BEAUTIFIL II, ACTIVA-Restorative) and discontinuous microfiber-reinforced RCs (Alert and everX Flow). Each group was subdivided into seven subgroups (n?=?3), according to polishing protocol: Laboratory-machine polishing with different siliconcarbide paper grits (G1: 320) → (G2: 800) → (G3: 1200) → (G4: 2000) → (G5: 4000). Chairside-hand polishing using a series of Sof-Lex spiral (G6) and abrasive polishing points (G7). Glossmeter was used to determine the SG at 60° incidence angle. SG was measured before and after polishing. Three-dimensional (3?D) noncontact optical profilometer and scanning electron microscopy (SEM) analysis were performed. Data were analyzed using ANOVA (p?=?.05). Results: Significant differences in SG (ranged 3–93 GU) were found according to the type of polishing protocol and RC (p?<?.05). Specimens polished with 4000 grit paper showed the highest SG (93 GU) values among all the groups tested. Conclusions: The tested chairside-hand polishing protocols presented lower SG values than laboratory-machine polishing (4000 silicon paper grit) and unpolished surfaces

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133