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Effect of filler content on the microtensile bond strength of composite resin and dentin in Class I cavities
Han, Bing1,2; Dong, Yanmei1,2; Gao, Xuejun1,2; Wang, Xiaoyan1,2; Tian, Fucong1,2
关键词composite resins filler content flexural modulus flowable composites microtensile bond strength polymerization shrinkage
刊名QUINTESSENCE INTERNATIONAL
2012-02-01
43期:2页:E16-E22
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Dentistry, Oral Surgery & Medicine
研究领域[WOS]Dentistry, Oral Surgery & Medicine
关键词[WOS]POLYMERIZATION SHRINKAGE ; VOLUMETRIC SHRINKAGE ; FLEXURAL PROPERTIES ; STRESS ; RESTORATIONS ; MICROLEAKAGE ; SYSTEM ; SIZE
英文摘要

Objective: To investigate the effect of filler content on microtensile bond strength (mu-TBS) in Class I cavities. Method and Materials: Experimental composites with filler contents of 80%, 76%, 70%, 60%, and 50% by weight were used. Polymerization shrinkage was measured with Acuvol, and a three-point flexural test was performed to determine flexural properties. For evaluation of mu-TBS, 25 extracted human molars were randomly divided into five groups and Class I cavities were prepared. After filling with one of the experimental composites and curing for 40 seconds, teeth were serially sectioned perpendicular to the cavity floor. Stick-shaped samples were tested with a microtensile tester. Statistical analysis was conducted using ANOVA and Pearson correlation tests. Results: Significant correlations were found between filler content and polymerization shrinkage (r = -0.973, P < .05) and the filler content and Young modulus (r = 0.891, P < .05). Different filler contents in the experimental composites had no significant effect on mu-TBS or flexural strength. Conclusion: In a Class I cavity model, this in vitro study showed that the filler content did not influence the flexural strength of experimental composite resins and had no effect on the microtensile bond strength between composite resin and dentin. (Quintessence Int 2012;43:e16-e22)

语种英语
WOS记录号WOS:000300114700012
项目编号50742009 ; 50830101
资助机构National Natural Science Foundation of China
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/66348
专题北京大学口腔医学院
北京大学口腔医学院_牙体牙髓科
作者单位1.Peking Univ, Sch Stomatol, Dept Cariol & Endodontol, Beijing 100081, Peoples R China
2.Peking Univ, Hosp Stomatol, Dept Cariol & Endodontol, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Han, Bing,Dong, Yanmei,Gao, Xuejun,et al. Effect of filler content on the microtensile bond strength of composite resin and dentin in Class I cavities[J]. QUINTESSENCE INTERNATIONAL,2012,43(2):E16-E22.
APA Han, Bing,Dong, Yanmei,Gao, Xuejun,Wang, Xiaoyan,&Tian, Fucong.(2012).Effect of filler content on the microtensile bond strength of composite resin and dentin in Class I cavities.QUINTESSENCE INTERNATIONAL,43(2),E16-E22.
MLA Han, Bing,et al."Effect of filler content on the microtensile bond strength of composite resin and dentin in Class I cavities".QUINTESSENCE INTERNATIONAL 43.2(2012):E16-E22.
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