中国实用口腔科杂志

中国实用口腔科杂志 ›› 2010, Vol. 3 ›› Issue (03): 155-157.

• 论著 • 上一篇    下一篇

3M自酸蚀黏结剂与GC光固化正畸黏结剂黏结颊面管性能比较研究

  

  1. 1. 佳木斯大学口腔医学院，黑龙江  佳木斯 154004；2. 大庆油田总医院口腔正畸科，黑龙江  大庆  163001
  • 收稿日期:2009-12-31 修回日期:2010-02-03 出版日期:2010-03-15 发布日期:2010-05-21

  • Received:2009-12-31 Revised:2010-02-03 Online:2010-03-15 Published:2010-05-21

摘要：

目的    比较3M自酸蚀封闭剂+3M光固化黏结剂与GC光固化正畸黏结剂在唾液污染条件下黏结颊面管的性能。方法    收集2009年7—9月在大庆油田总医院口腔外科因牙周病拔除的新鲜下颌第一恒磨牙40颗，随机分为3M组和GC组，每组20颗。分别用3M自酸蚀封闭剂+3M光固化黏结剂和GC光固化正畸黏结剂黏结颊面管，测试其抗剪切强度、抗拉伸强度及黏结剂残留指数。结果    两种黏结剂的抗剪切强度及抗拉伸强度差异均有统计学意义（P < 0.05），GC光固化正畸黏结剂黏结强度大于3M自酸蚀黏结剂；在剪切力和拉伸力作用下，GC光固化正畸黏结剂的黏结剂残留指数（ARI）小于3M自酸蚀黏结剂，二者差异有统计学意义（P < 0.05）。结论           GC光固化正畸黏结剂性能较佳，对釉质损伤小，适合用于隔湿效果差的磨牙黏结颊面管。

关键词: 颊面管, 自酸蚀黏结剂, 树脂加强型玻璃离子, 黏结强度, 黏结剂残留指数

Abstract:

Objective    To compare the performance of 3M self-etching primer+3M light-cured adhesive and GC light-cured orthodontic adhesive in bonding buccal tube in saliva-contaminated conditions. Methods    A total of 40 mandibular first permanent molars were collected from July 2009 to September 2009 in Dental Surgery of Daqing Oil Field General Hospital and were randomly divided into 2 groups. Buccal tubes were bonded with 3M self-etching primer +3M light-cured adhesive and GC light-cured orthodontic adhesive respectively. The anti-shear strength，anti-tensile strength and adhesive remnant index were tested. Results    The anti-shear strength and anti-tensile strength of two kinds of adhesive were significantly different （P < 0.05）； the bond strength of GC light-cured orthodontic adhesive was greater than the 3M self-etching adhesive； the adhesive remnant index of two kinds of adhesive were also of significant difference （P < 0.05）； the ARI count of GC light-cured orthodontic adhesive was less than 3M self-etching adhesive. Conclusion    The performance of GC light-cured orthodontic adhesive is better with less damage to the enamel，and is suitable for the molar in bonding buccal tube in the saliva polluted environment.

Key words: buccal tube；self-etching adhesive；resin-modified glass ionomer cements；adhesive strength；adhesive remnant index