In vitro evaluation of the wear resistance of composite resin blocks for CAD/CAM

被引：40

作者：

Lauvahutanon, Sasipin ^{[1
,2
]}

Takahashi, Hidekazu ^{[1
]}

Oki, Meiko ^{[3
]}

Arksornnukit, Mansuang ^{[2
]}

Kanehira, Masafumi ^{[4
]}

Finger, Werner J. ^{[5
]}

机构：

[1] Tokyo Med & Dent Univ, Grad Sch Med & Dent Sci, Oral Biomat Engn, Bunkyo Ku, Tokyo 1138549, Japan

[2] Chulalongkorn Univ, Fac Dent, Dept Prosthodont, Bangkok 10330, Thailand

[3] Tokyo Med & Dent Univ, Grad Sch Med & Dent Sci, Basic Oral Hlth Engn, Bunkyo Ku, Tokyo 1138549, Japan

[4] Tohoku Univ, Grad Sch Dent, Dept Restorat Dent, Div Operat Dent,Aoba Ku, Sendai, Miyagi 9808575, Japan

[5] Tohoku Univ, Grad Sch Dent, Liaison Ctr Innovat Dent, Aoba Ku, Sendai, Miyagi 9808575, Japan

来源：

DENTAL MATERIALS JOURNAL | 2015年 / 34卷 / 04期

关键词：

Composite resin blocks; CAD/CAM; Sliding wear; Volume loss; Surface morphology; 2-BODY WEAR;

D O I：

10.4012/dmj.2014-293

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The aim of the study was to investigate two- and three-body wear of CAD/CAM blocks. Four composite resins, one hybrid ceramic and one feldspar ceramic block material were examined. Six specimens each were tested in a ball-on-disc wear device fitted with a zirconia ball (50 N load, 1.2 Hz, 50 k cycles) in water for two-body and in poppy seed slurry for three-body wear evaluation. Volume loss after each 10 k cycle was quantified using a digital CCD microscope. Statistical analysis: ANOVA and Tukey's multiple comparisons (alpha=0.05). Two-body wear for composite resin blocks was small, hybrid ceramic and ceramic blocks showed larger volume loss. Three-body wear was very low for all materials. All CAD/CAM block materials investigated displayed low wear compared to previous data for direct posterior composites carrying out the same wear test. The block materials are considered suitable for fabrication of single full crown restorations on premolar teeth.

引用

页码：495 / 502

页数：8

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