Abrasive and sliding wear of resin composites for dental restorations

被引：47

作者：

Souza, Julio C. M. ^{[1
,2
]}

Bentes, Ana C. ^{[1
]}

Reis, Kelly ^{[3
]}

Gavinha, Sandra ^{[3
]}

Buciumeanu, Mihaela ^{[1
,4
]}

Henriques, Bruno ^{[1
]}

Silva, Filipe S. ^{[1
]}

Comes, Jose R. ^{[1
]}

机构：

[1] Univ Minho, Dept Mech Engn DEM, Ctr Microelectromech Syst CMEMS, Campus Azurem, P-4800058 Guimaraes, Portugal

[2] Univ Fed Santa Catarina, Sch Dent, Postgrad Program Dent PPGO, Florianopolis, SC, Brazil

[3] Univ Fernando Pessoa, Sch Dent, Oporto, Portugal

[4] Dunarea de Jos Univ Galati, Cross Border Fac Humanities Econ & Engn, Domneasca 47, Galati 800008, Romania

来源：

TRIBOLOGY INTERNATIONAL | 2016年 / 102卷

关键词：

Resin composites; Dental restorations; Biotribology; Microabrasion; Reciprocating sliding wear; TRIBOCORROSION BEHAVIOR; DEGRADATION; FRICTION; TI6AL4V; PEEK;

D O I：

10.1016/j.triboint.2016.05.035

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The aim of this work was to study the abrasive and reciprocating sliding wear resistance of four commercial resin composites for dental restorations. Resin composite samples were divided into four groups considering the different materials and then separated for compressive, abrasive and sliding tests (n=10). Micro-abrasion tests were performed against a stainless steel rotating ball on 3 N normal load for 300 revolutions in the presence of a suspension containing a commercial whitening and abrasive toothpaste. Reciprocating sliding ball-on-plate friction tests were performed against an alumina ball on 20 N normal load at 1 Hz in the presence of artificial saliva at 37 degrees C for 30 min. The wear volume was evaluated for the different groups of resin composites and correlated with their mechanical properties and inorganic composition in terms of size and volume percentage of filler particles. Resin composites with high volume content of inorganic fillers (82 wt%) consisting of micro particles (0.1-2.5 mu m) combined with small nanoparticles (20-60 nm) revealed the most proper mechanical and tribological response. The dominant wear mechanisms consisted on fine micro-scale abrasion for abrasion tests and surface fatigue and abrasion for reciprocating sliding tests. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：154 / 160

页数：7

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