Evaluation of fracture resistance of indirect composite resin crowns by cyclic impact test: Influence of crown and abutment materials

被引：12

作者：

Sakoguchi, Kenji ^{[1
]}

Minami, Hiroyuki ^{[2
]}

Suzuki, Shiro ^{[3
]}

Tanaka, Takuo ^{[1
]}

机构：

[1] Kagoshima Univ, Grad Sch Med & Dent Sci, Adv Therapeut Course, Dept Fixed Prosthet Dent, Kagoshima 8908544, Japan

[2] Kagoshima Univ, Med & Dent Hosp, Fixed Prosthet Clin, Kagoshima 8908544, Japan

[3] Univ Alabama Birmingham, Sch Dent, Dept Prosthodont, Birmingham, AL 35294 USA

来源：

DENTAL MATERIALS JOURNAL | 2013年 / 32卷 / 03期

关键词：

Composite crown; Cyclic impact test; Premolar tooth; Abutment material; CAD/CAM; CEMENTATION; ENVIRONMENT; CERAMICS; SYSTEMS; ALLOYS; FIBER; METAL; WEAR; POST;

D O I：

10.4012/dmj.2012-313

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

This study evaluated the effect of abutment materials on the fracture resistance of composite crowns for premolars. Composite crowns were fabricated using two different indirect composite resin materials (Meta Color Prime Art or Estenia C&B) and cemented onto either a metal (Castwell M.C. 12) or composite resin (Build-It FR and FibreKor) abutment with resin cement (Panavia F2.0). Twenty-four specimens were fabricated for four groups (n=6 each) and subjected to 280-N cyclic impact loading at 1.0 Hz. The number of cycles which caused the composite crown to fracture was defined as its fracture resistance. All data were statistically analyzed using ANOVA and the Bonferroni test (alpha=0.05). Composite crowns cemented onto resin abutments showed higher fracture resistance than those cemented onto metal abutments.

引用

页码：433 / 440

页数：8

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