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Comparison between a silorane-based composite and methacrylate-based composites: Shrinkage characteristics, thermal properties, gel point and vitrification point
Gao, Bo-Tao1,2; Lin, Hong1,2; Zheng, Gang1,2; Xu, Yong-Xiang1,2; Yang, Jin-Liang3
关键词Silorane-based Composite Methacrylate-based Composite Shrinkage
刊名DENTAL MATERIALS JOURNAL
2012
DOI10.4012/dmj.2011-147
31期:1页:76-85
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Dentistry, Oral Surgery & Medicine ; Materials Science, Biomaterials
研究领域[WOS]Dentistry, Oral Surgery & Medicine ; Materials Science
关键词[WOS]LIGHT-CURED COMPOSITES ; POLYMERIZATION SHRINKAGE ; CONTRACTION STRESS ; DENTAL COMPOSITES ; CURING METHODS ; PLASMA-ARC ; RESINS ; CONVERSION ; STRAIN ; MODULUS
英文摘要

A silorane-based composite was compared against methacrylate-based composites in terms of shrinkage characteristics, thermal properties, gel point, and vitrification point. Shrinkage strain was measured using a laser triangulation method. Shrinkage stress was measured using a stress analyzer. Heat flow during photopolymerization was measured using photo-DSC. Statistical analysis was performed using one-way ANOVA and Tukey′s test (p=0.05). Silorane exhibited significantly lower shrinkage strain than the methacrylate-based composites. It also presented the lowest stress values during light exposure, but the highest maximum stress rate after light exposure. It showed the highest heat flow rate, and it took the longest time to reach gel and vitrification points. Silorane demonstrated improved performance over the methacrylate-based composites with delayed gel and vitrification points as well as reduced shrinkage strain and stress. However, a high quantity of heat was liberated during the curing process, causing silorane to show significantly higher stress rate (p<0.05) than the methacrylate-based composites after light exposure.

语种英语
WOS记录号WOS:000302195500009
引用统计
被引频次:19[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/400002259/54280
专题北京大学口腔医学院
作者单位1.Peking Univ, Sch Stomatol, Dept Dent Mat, Beijing 100081, Peoples R China
2.Peking Univ, Hosp Stomatol, Dept Dent Mat, Beijing 100081, Peoples R China
3.Beijing Univ Chem Technol, Coll Mat Sci & Engn, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714
Gao, Bo-Tao,Lin, Hong,Zheng, Gang,et al. Comparison between a silorane-based composite and methacrylate-based composites: Shrinkage characteristics, thermal properties, gel point and vitrification point[J]. DENTAL MATERIALS JOURNAL,2012,31(1):76-85.
APA Gao, Bo-Tao,Lin, Hong,Zheng, Gang,Xu, Yong-Xiang,&Yang, Jin-Liang.(2012).Comparison between a silorane-based composite and methacrylate-based composites: Shrinkage characteristics, thermal properties, gel point and vitrification point.DENTAL MATERIALS JOURNAL,31(1),76-85.
MLA Gao, Bo-Tao,et al."Comparison between a silorane-based composite and methacrylate-based composites: Shrinkage characteristics, thermal properties, gel point and vitrification point".DENTAL MATERIALS JOURNAL 31.1(2012):76-85.
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