中国组织工程研究

中国组织工程研究 ›› 2012, Vol. 16 ›› Issue (38): 7073-7077.doi: 10.3969/j.issn.2095-4344.2012.38.009

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

烤瓷熔附金属全冠边缘微渗漏与两种角度肩台影响的比较

王晓静1，唐卫忠2   

  1. 1上海市四川北路街道社区卫生服务中心口腔科，上海市 200080
    2解放军第二军医大学附属长海医院口腔科，上海市 200433
  • 收稿日期:2012-06-09 修回日期:2012-07-19 出版日期:2012-09-16 发布日期:2012-09-16
  • 通讯作者: 唐卫忠，硕士，副主任医师，解放军第二军医大学附属长海医院口腔科，上海市 200433 hiwangxiaoyu@ sina.com
  • 作者简介:王晓静，女，1975年生，山东省人，2007年同济大学毕业，主治医师，主要从事口腔修复的研究。 hiwangxiaoyu@ sina.com

Effect of two different shoulders on the microleakage of porcelain-fused-to-metal crowns

Wang Xiao-jing1, Tang Wei-zhong2   

  1. 1Department of Stomatology, North Sichuan Road Community Health Center, Shanghai 200080, China
    2Department of Stomatology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
  • Received:2012-06-09 Revised:2012-07-19 Online:2012-09-16 Published:2012-09-16
  • Contact: Tang Wei-zhong, Master, Associate chief physician, Department of Stomatology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China hiwangxiaoyu@ sina.com
  • About author:Wang Xiao-jing, Attending physician, Department of Stomatology, North Sichuan Road Community Health Center, Shanghai 200080, China hiwangxiaoyu@ sina.com

PDF

562

被引次数

6

摘要：

背景：肩台的形态将直接关系到患者基牙的健康和最终修复体的质量。
目的：采用循环加载和温度循环试验观察两种肩台制备后的烤瓷熔附金属全冠冠边缘的微渗漏程度。
方法：选年龄40-50岁因牙周炎导致拔除的新鲜磨牙40颗，随机分成两组。以标准备牙的要求制作烤瓷熔附金属全冠，将肩台分别制备成120°和90°。通过体外实验，对两种肩台制备后的烤瓷熔附金属全冠行循环加载和温度循环试验，测试其冠边缘微渗漏的程度。
结果与结论：循环加载和温度循环试验显示，无论是唇侧边缘还是舌侧边缘，120°型肩台设计更容易引起微渗漏，而90°型肩台颈缘微渗漏机会小。说明烤瓷熔附金属全冠修复体颈缘设计以90°型肩台较为理想，微渗漏机会小。

关键词: 肩台, 微渗漏, 烤瓷熔附金属全冠, 循环加载试验, 温度循环试验, 肩台设计

Abstract:

BACKGROUND: Morphology of the shoulder is directly related to the health of patient's abutment and quality of final prosthesis.
OBJECTIVE: To observe the microleakage of porcelain-fused-to-metal of two shoulders by cyclic loading and thermal cycling test.
METHODS: Forty recently extracted molars from patients with periodontal disease, aged 40-50 years, were collected and randomly divided into two groups. The porcelain-fused-to-metals were prepared with the standard prepared criteria, and the shoulders were designed into 120° and 90°. Then the cyclic loading and thermal cycling tests were performed in vitro on the porcelain-fused-to-metal of two shoulders to detect the microleakage.
RESULTS AND CONCLUSION: This study discover that there are significant differences between two groups after cyclic loading and thermal cycling processing, which increased microleakage of porcelain-fused-to-metal with 120° shoulder, and 90° shoulder has the lowest level of microleakage no matter on labial edge or the tongue edge. It demonstrates that 90° shoulder is the best performance to resist microleakage for porcelain-fused-to-metal and 90° shoulder, design can minimize occurrence of secondary caries.

中图分类号: