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Gluma脱敏剂对不同粘接剂粘接拉伸和剪切强度的影响

陆梅1,高宁2,岑远坤2,汲平3   

  1. 1. 桂林医学院附属医院口腔科,广西 桂林 541001; 2. 四川大学华西口腔医院修复科, 四川 成都 610041;3. 山东大学口腔医院修复科, 山东 济南 250012
  • 收稿日期:2006-03-03 修回日期:1900-01-01 出版日期:2007-06-24 发布日期:2007-06-24
  • 通讯作者: 高宁

Effect of Gluma desensitizer on tensile bond strength and shear bond strength of different dental cements

LU Mei1,GAO Ning2,CEN Yuan-kun2,JI Ping3   

  1. 1.Department of Stomatology, Affiliated Hospital of Guilin Medical College;2.Department of Prosthodontics, Huaxi Stomatology Hospital, Sichuan University;3.Department of Prosthodontics,Stomatology Hospital of Shandong Unversity
  • Received:2006-03-03 Revised:1900-01-01 Online:2007-06-24 Published:2007-06-24
  • Contact: GAO Ning

摘要: 目的:研究Gluma脱敏剂对不同粘接剂粘接强度的影响。方法:将24颗新鲜离体牙预备出牙本质面,分2组,分别用粘接剂(VitremerTM树脂基玻璃离子粘接剂、聚羧酸锌水门汀)将镍铬合金接头粘于表面(粘接前每组中均有6颗牙经Gluma脱敏剂处理),置37℃蒸馏水中24h,电子拉力实验机作拉伸测试(1?mm/min)。另选24颗离体牙,同法制取试件作剪切测试。结果:经Gluma脱敏剂处理后,VitremerTM粘接剂的拉伸、剪切强度均增高(P<0.05),PC的拉伸强度增高无显著性(P>0.05)。结论:Gluma脱敏剂对VitremerTM粘接剂和PC的粘接效果无不良影响。

关键词: 牙科粘固剂 , Gluma脱敏剂

Abstract: Objective: To evaluate the effect of Gluma desensitizer on bond strength of different dental cements in vitro. Methods: Twentyfour freshly extracted human molars were prepared to flatdentin and cemented at random to testing specimens made of NickelChromium alloy respectively by VitremerTM resinmodified glass ionomer cement and polycarboxylate cement (PC), twelve in each group. Six teeth of each group were treated by Gluma desensitizer before cementation. All samples were stored in distilled water at 37?℃ for 24 hours, and then they were tested on a universal testing machine (1?mm/min) for tensile bond strength (TBS). The above procedure was repeated for shear bond strength (SBS) with another twentyfour molars. Results: Application of Gluma desensitizer significantly increased the TBS and SBS of VitremerTM luting cement (P<0.05). The TBS and the SBS of PC were also slightly increased, but the changes in TBS had no statistical significance (P>0.05). Conclusion: Gluma desensitizer has no negative impacts on the bond strength of VitremerTM luting cement and PC.

Key words: Gluma desensitizer, Dental cements

中图分类号: 

  • R783
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