华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

不同树脂粘接剂对纤维桩核微渗漏的影响

陈亚琴 周峰 骆小平 孟翔峰   

  1.  南京大学医学院附属口腔医院修复科, 南京210008
  • 收稿日期:2011-10-25 修回日期:2011-10-25 出版日期:2011-10-20 发布日期:2011-10-20
  • 通讯作者: 周峰,Tel:025-83620262
  • 作者简介:陈亚琴(1972—),女,江苏人,主治医师,学士
  • 基金资助:

    南京市医学科技发展基金资助项目(YKK08041)

Influence of different resin bond systems on coronal microleakage of fiber posts and core restorations

Chen Yaqin, Zhou Feng, Luo Xiaoping, Meng Xiangfeng   

  1. Dept. of Prosthodontics, The Affiliated Stomatology Hospital of Medical School, Nanjing University, Nanjing 210008, China
  • Received:2011-10-25 Revised:2011-10-25 Online:2011-10-20 Published:2011-10-20
  • Contact: Zhou Feng,Tel:025-83620262

摘要:

目的了解不同树脂粘接剂对纤维桩树脂核冠向微渗漏的影响。方法选用60颗人离体上颌单根管前牙,根管治疗后随机分成4组,行桩腔预备,选用4种树脂粘接系统,分别为RelyX Unicem、Dulink、DC core Automix、Luxacore,进行树脂核重建。样本浸泡于印度墨水中1周后,脱矿、脱水并透明化处理,体视显微镜下观察染料的渗透情况。结果4组树脂粘接剂间微渗漏程度的差异有统计学意义(P=0.007),C组微渗漏程度最轻。结论自酸蚀树脂粘接材料有着良好的边缘封闭作用。

关键词: 纤维桩, 微渗漏, 双固化树脂粘接剂, 染色

Abstract:

Objective To evaluate the coronal microleakage of teeth restored with fiber posts and composite cores with four different resin bonding systems. Methods Sixty extracted human maxillary single-rooted teeth were endodontically treated and randomly divided into four groups. Post spaces were prepared in the root canals. Four different resin bonding systems(RelyX Unicem, Dulink, DC core Automix, Luxacore)were used respectively to bond fiber posts and reconstruct cores. The specimens were immersed in India ink for one week. Subsequently all teeth were demineralized, dehydrated and rendered transparent. Then microleakage was observed with stereomicroscope. Results The microleakage degrees among four resin bonding systems were significantly different(P=0.007), and group C showed the least microleakage compared with the other three. Conclusion Self-etching resin bonding systems have a super margin sealing ability.

Key words: fiber posts, microleakage, dual-cured resin bond agent, dyeing