3种大块充填树脂的耐磨耗性能及挠曲强度的比较研究

上海口腔医学 ›› 2016, Vol. 25 ›› Issue (3): 292-295.

3种大块充填树脂的耐磨耗性能及挠曲强度的比较研究

张欢, 张梦龙, 仇丽鸿, 于静涛, 薛明, 詹福良

中国医科大学附属口腔医院牙体牙髓病科,辽宁沈阳 110002

收稿日期:2015-09-25 修回日期:2015-11-23 出版日期:2016-06-25 发布日期:2016-07-22
通讯作者: 仇丽鸿,E-mail: drqlh@yahoo.com E-mail:406470854@qq.com
作者简介:张欢（1988-）,女, 硕士

Comparison of wear resistance and flexural strength of three kinds of bulk-fill composite resins

ZHANG Huan, ZHANG Meng-long, QIU Li-hong, YU Jing-tao, XUE ming, ZHAN Fu-liang

Department of Endodontics, School of Stomatology, China Medical University. Shenyang 110002, Liaoning Province, China

Received:2015-09-25 Revised:2015-11-23 Online:2016-06-25 Published:2016-07-22

摘要/Abstract

摘要： 目的比较3种大块充填树脂的耐磨耗性能及挠曲强度。方法选取SDR、SonicFill、Tetric N-Ceram Bulk Fill及传统纳米树脂Herculite Precis,分别制作成直径为10 mm、高度为2 mm的圆柱体耐磨耗实验试件和2 mm×2 mm×25 mm长方体挠曲强度实验试件。将磨耗试件固定在往复滑动球-片式磨耗试验机上,以人工唾液作为磨耗介质,加载力为50 N,磨耗1万次后计算体积磨损值。应用万能实验机以1 mm/min的加载速度,测量并计算试件挠曲强度值。采用SPSS13.0软件包对4种复合树脂体积磨损量及挠曲强度值的差异进行单因素方差分析。结果 4种树脂的体积磨损量从大到小依次为SDR（1.2433±0.11） mm³、SonicFill （0.6331±0.09） mm³、Tetric N-Ceram Bulk Fill（0.3558±0.05） mm³、Herculite Precis（0.3097±0.04） mm³,挠曲强度值从大到小依次为SonicFill（136.2184±14.61） MPa、Herculite Precis（124.1468±18.25） MPa、Tetric N-Ceram Bulk Fill（119.2082±16.36） MPa、SDR（103.6246±7.03） MPa。Tetric N-Ceram Bulk Fill与对照树脂Herculite Precis的体积磨损量和挠曲强度值均无显著差异(P>0.05)。结论综合材料的耐磨耗性能和挠曲强度,大块充填树脂Tetric N-Ceram Bulk Fill可能更适合作为后牙直接充填材料。

关键词: 大块充填树脂, 耐磨耗性能, 挠曲强度

Abstract: PURPOSE: To compare the abrasion resistance and flexure strength of three bulk-fill resin composites with an universal nano-hybrid composite resins. METHODS: The specimens were prepared with three kinds of bulk fill composites (SDR , sonicfill, Tetric N-Ceram Bulk Fill) and an universal nano-hybrid composite resins(Herculite Precis). 10 mm in diameter × 2mm in height specimens were prepared for abrasion resistance, while 2 mm in width × 2 mm in depth×25 mm in length specimens were prepared for flexure strength. The specimens were mounted in a bal1-on-disc wear testing machine and abraded with the media artificial saliva(50 N loads, 10000 cycles).Flexural test was performed with an Universal Testing Machine at a cross-head speed of 1mm/min. One-way variance analysis was used to determine the statistical differences of volume loss and flexural strength among groups with SPSS 13.0 software package(P<0.05). RESULTS: The volume loss was as follows: SDR (1.2433±0.11) mm³<sonicfill (0.6331±0.09) mm³<Tetric N-Ceram Bulk Fill（0.3558±0.05） mm³ <Herculite Precis（0.3097±0.04） mm³. The flexural strength was as follows: sonicfill (136.2184±16.70) MPa<Herculite Precis(124.1468±19.96) MPa<Tetric N-Ceram Bulk Fill (119.2082±20.32) MPa< SDR(103.6246±7.13) MPa. There was no significant difference between Tetric N-Ceram Bulk Fill and Herculite Precis either in volume loss or flexural strength(P>0.05). CONCLUSIONS: With regard to wear resistance and flexural strength, Tetric N-Ceram Bulk Fill is recommended as an alternative for posterior restorations.

Key words: Bulk-Fill Composite Resin, Wear resistance, Flexural strength

中图分类号:

R783.1

张欢, 张梦龙, 仇丽鸿, 于静涛, 薛明, 詹福良. 3种大块充填树脂的耐磨耗性能及挠曲强度的比较研究[J]. 上海口腔医学, 2016, 25(3): 292-295.

ZHANG Huan, ZHANG Meng-long, QIU Li-hong, YU Jing-tao, XUE ming, ZHAN Fu-liang. Comparison of wear resistance and flexural strength of three kinds of bulk-fill composite resins[J]. Shanghai Journal of Stomatology, 2016, 25(3): 292-295.

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