中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (47): 8855-8858.doi: 10.3969/j.issn.1673-8225.2011.47.028

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

不同纤维桩主桩材料联合辅桩修复漏斗状残根抗折性的对比

张  勤1，于海涛2   

  1. 1新疆医科大学附属中医院口腔科，新疆维吾尔自治区乌鲁木齐市  830000
    2新疆医科大学第五附属医院口腔科，新疆维吾尔自治区乌鲁木齐市   830054
  • 收稿日期:2011-05-30 修回日期:2011-08-25 出版日期:2011-11-19 发布日期:2011-11-19
  • 通讯作者: 于海涛，硕士，主治医师，新疆医科大学第五附属医院口腔科，新疆维吾尔自治区乌鲁木齐市 830054 yht555@ yeah.net
  • 作者简介:张勤，女，1965年生，陕西省乾县人，汉族，1990年西安医科大学毕业，副主任医师，主要从事口腔正畸专业及口腔基础的研究。 1178257715@ qq.com

Comparison of the fracture resistance of different fiber posts in combination with auxiliary piles in restoration of flared roots

Zhang Qin1, Yu Hai-tao2   

  1. 1Department of Stomatology, the Affiliated Hospital of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi  830000, Xinjiang Uygur Autonomous Region, China
    2Department of Stomatology, the Fifth Affiliated Hospital, Xinjiang Medical University, Urumqi  830054, Xinjiang Uygur Autonomous Region, China
  • Received:2011-05-30 Revised:2011-08-25 Online:2011-11-19 Published:2011-11-19
  • Contact: Yu Hai-tao, Master, Attending physician, Department of Stomatology, the Fifth Affiliated Hospital, Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China yht555@yeah.net
  • About author:Zhang Qin, Associate chief physician, Department of Stomatology, the Affiliated Hospital of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China 1178257715@qq.com

PDF

597

被引次数

44

摘要：

背景：近年来由于玻璃纤维和碳纤维桩核等近牙本质弹性模量材料的使用，临床上获得了比较满意的结果，但在纤维桩核与根管内牙本质的黏结问题、大量牙本质丧失等方面还需要进一步的深入研究。
目的：比较3种桩核系统材料修复下颌第一前磨牙的抗折性，并分析影响因素。
方法：选择因正畸需要而拔除的下颌第一前磨牙36颗，随机分为3组，A组：MACRO-LOCK石英纤维桩联合使用FIBERCONETM辅桩-复合树脂核；B组：镍铬合金桩核；C组：MACRO-LOCK石英纤维桩-复合树脂核。所有桩核均行镍铬合金烤瓷冠修复，固定于万能材料测试机上加载直至标本发生折裂，记录标本破坏时的瞬间力值及实验牙的折裂类型。
结果与结论：各组样本破坏性力学实验测试结果显示，3组间两两相比差异均有显著性意义[(403.99±15.91)，(304.31±16.95)，(233.48±22.56) N，P < 0.05]。A组牙体组织折裂后可再次修复的可能性明显高于B组。提示纤维主桩联合辅桩进行桩核修复漏斗状残根，其抗折性高于金属桩，折裂模式均为可复性。

关键词: 抗折强度, MACRO-LOCK石英纤维桩, FIBERCONETM辅桩, 镍铬合金桩, 第一前磨牙

Abstract:

BACKGROUND: In recent years, the clinical use of glass fiber and carbon fiber post has obtained a more satisfactory result, but the bonding between the fiber post and root canal dentin also need further research.
OBJECTIVE: To compare the fracture resistance ability of three post-core systems in the repair of the first premolar, and to analyze the influential factors.
METHODS: Totally 36 single rooted first premolars from orthodontic patients were divided into A, B and C three groups, respectively after endodontic treatment (group A: MACRO-LOCK quartz fiber with FIBERCONETM post-core system, group B: Nr-Cr post-core system; group C: MACRO-LOCK quartz fiber post-core system). After restoration with Nr-Cr PFM full crown, they were fixed in universal testing machine for loading, until the specimen destroyed instantly, to record the load to fracture (in Newton) and the load-displacement curve.
RESULTS AND CONCLUSION: The median fracture values of three groups were as follows: Group A: (403.99±15.91) N, Group B: (304.31±16.95) N, Group C: (233.48±22.56) N. The group A showed a significantly higher level of fracture strength compared to the other groups and the fracture model of MACRO-LOCK quartz fiber with FIBERCONETM post-core system allowed the possibility of re-preparation (P < 0.05). The MACRO-LOCK quartz fiber with FIBERCONETM post-core system showed a significantly higher level of fracture strength compared to the other groups and strengthened the flared roots.

中图分类号: