Surface roughness and gloss of novel flowable composites after polishing and simulated brushing wear
10.3760/cma.j.issn.1002-0098.2017.04.010
- VernacularTitle: 流动与膏体复合树脂表面抛光性能的比较研究
- Author:
Ruili WANG
1
;
Chongyang YUAN
;
Yixiang PAN
;
Fucong TIAN
;
Zuhua WANG
;
Xiaoyan WANG
Author Information
1. Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China (Present address: Department of Stomatology, The First People's Hospital of Jinzhong, Jinzhong Shanxi 030600, China)
- Publication Type:Journal Article
- Keywords:
Composite resins;
Dental polishing;
Dental restoration wear;
Glossiness
- From:
Chinese Journal of Stomatology
2017;52(4):243-247
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate surface properties of novel flowable composites after polishing and simulated brushing wear, compared to their pasty counterpart.
Methods:Composites employed in this study were: three flowable composites (A1: Clearfil Majesty ES Flow; B1: Beautifil Flow Plus F00; C1: Filtek Bulk Fill) and three paste composites (A2: Clearfil Majesty; B2: Beautifil; C2: Filtek Z350. Eleven disk-shaped specimens were made for each material. The specimens were cured, then subjected to sandpaper finishing for 20 s, one-step polishing for 30 s, finally subjected to simulated brushing for 10 000 cycles. Surface roughness and glossiness were measured before finishing, after finishing, after polishing, after 5 000 brushing cycles and after 10 000 brushing cycles, respectively. Data obtained were analyzed using two-way ANOVA method. Scanning electron microscope was employed to examine the microscopic appearance of each material.
Results:Surface roughness (0.11~0.22 μm) and glossiness (74.25~86.48 GU) of each material were similar after one-step polishing. After brushing simulation, roughness increased significantly and glossiness decreased significantly for each material (P<0.05). Group A1 presented the best gloss ([50.68±1.58] GU) after final wear (P<0.05). Flowable composites of group A1 and B1 tested in the present setup showed better surface properties compared to their pasty counterpart (group A2 and B2).
Conclusions:Within the limit of this study, flowable composites tested in the present research can obtain similar surface polish or even better than the paste composite counterpart.
