中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (47): 7639-7643.doi: 10.3969/j.issn.2095-4344.2015.47.017

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

不同复合树脂材料硬度及黏结强度的比较

王南燕,张辉燕   

  1. 佛山市第一人民医院口腔科,广东省佛山市 528000
  • 收稿日期:2015-10-08 出版日期:2015-11-19 发布日期:2015-11-19
  • 作者简介:王南燕,女,1977年生,广东省兴宁市人,副主任医师,主要从事牙髓牙体研究。

Comparison of the hardness and bond strength of different composite resin materials

Wang Nan-yan, Zhang Hui-yan   

  1. Department of Stomatology, the First people’s Hospital of Foshan, Foshan 528000, Guangdong Province, China
  • Received:2015-10-08 Online:2015-11-19 Published:2015-11-19
  • About author:Wang Nan-yan, Associate chief physician, Department of Stomatology, the First people’s Hospital of Foshan, Foshan 528000, Guangdong Province, China

摘要:

背景:与传统复合树脂材料相比,大块充填复合树脂材料具有增加光固化深度、降低聚合收缩率、简化临床操作程序等特点,但不同类型大块充填复合树脂材料的性能各异。
目的:分析4种复合树脂材料的硬度及黏结强度。
方法:取大块填充复合树脂Tetric EvoCeram BulkFill、SDR,以及传统复合树脂P60、Z350,检测4种复合树脂材料分别在2,3,4,5 mm光固化深度下的维氏显微硬度,以及4种复合树脂材料与牙本质间的剪切黏结强度。
结果与结论:不同光固化深度下的硬度顺序为:P60复合树脂>Z350复合树脂>Tetric EvoCeram BulkFill复合树脂> SDR复合树脂,4组间比较差异有显著性意义(P < 0.05);Tetric EvoCeram BulkFilll和SDR复合树脂光固化后的硬度未随着固化深度的增加而明显减小。Tetric EvoCream BulkFil和SDR复合树脂的剪切黏结强度显著高于P60和Z350复合树脂(P < 0.05)。表明大块充填树脂材料Tetric EvoCeram BulkFill和SDR的综合机械性能较高,并且具有较高的剪切黏结强度。
中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

关键词: 生物材料, 口腔生物材料, 复合树脂, 固化深度, 黏结强度, 硬度

Abstract:

BACKGROUND: Compared with the conventional composite resin materials, large pieces of filling composite resin materials have the features of increasing light-curing depth, decreasing the polymerization shrinkage rate and streamlining operational procedures; however, the properties of different types of large pieces of filling composite resin materials are different.

OBJECTIVE: To analyze the hardness and bond strength of four kinds of composite resin materials.
METHODS: Large pieces of filling composite resin Tetric EvoCeram Bulk Fill, SDR, as well as conventional composite resin P60, Z350 were obtained. The vickers microhardness of these four kinds of composite resin materials under the light-curing depth of 2, 3, 4, 5 mm was detected. The shear bond strength between these four kinds of composite resin materials and the dentin was also detected.
RESULTS AND CONCLUSION: The hardness order under different light-curing depths was: P60 composite resin > Z350 composite resin > Tetric EvoCeram BulkFill composite resin > SDR composite resin, there was a significant difference between these four groups (P < 0.05). The light-cured hardness of Tetric EvoCream BulkFil and SDR composite resins was not significantly decreased with the increased cured depth. The shear bond strength of Tetric EvoCeram BulkFill and SDR composite resins was significantly higher compared with the P60 and Z350 composite resins (P < 0.05). These results demonstrate that large pieces of filling resinous materials, Tetric EvoCeram BulkFill and SDR, show better comprehensive mechanical properties and have a higher shear bond strength. 
中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

Key words: Composite Resins, Hardness, Dental Bonding, Tissue Engineering