根管治疗后下颌切牙瓷贴面与全瓷冠两种修复方式的抗折裂性对比研究

doi:10.13701/j.cnki.kqyxyj.2020.03.019

口腔医学研究 ›› 2020, Vol. 36 ›› Issue (3): 269-272.DOI: 10.13701/j.cnki.kqyxyj.2020.03.019

根管治疗后下颌切牙瓷贴面与全瓷冠两种修复方式的抗折裂性对比研究

陈世炜, 伍晓红^*

福建医科大学附属口腔医院福建福州 350001

收稿日期:2019-09-09 出版日期:2020-05-15 发布日期:2020-05-15
通讯作者: 伍晓红,E-mail:181904719@qq.com
作者简介:陈世炜(1983~),男,福建福州人,硕士,主治医师,主要研究方向为口腔固定修复及种植修复。
基金资助:
福建省卫计委青年基金项目(2015-1-69)

Comparison of Fracture Resistance of Mandibular Incisor Restored with Porcelain Veneers and All-ceramic Crowns after Root Canal Treatment

CHEN Shiwei, WU Xiaohong^*

Stomatological Hospital, Fujian Medical University, Fuzhou 350002, China

Received:2019-09-09 Online:2020-05-15 Published:2020-05-15

摘要/Abstract

摘要： 目的：比较根管治疗后下颌切牙瓷贴面与全瓷冠修复后的抗折裂强度。方法：选择离体下颌切牙30颗,统一经过体外根管治疗,3M纤维桩加固后随机分为3组:瓷贴面修复组、全瓷冠修复组(经牙体预备后采用IPS e.max Press铸瓷系统进行修复)和树脂充填组(直接采用复合树脂充填)。在万能材料试验机上分别测试3组样本的抗折裂载荷值,对结果进行统计分析。结果：瓷贴面组、全瓷冠组、直接充填组的抗折裂载荷分别为(439.59±56.97) N、(719.98±43.03) N和(597.74±50.35) N,各组值之间存在统计学差异 (P<0.01)。结论：根管治疗后下颌切牙经纤维桩加固后,全瓷冠修复后的抗折裂强度高于瓷贴面修复。二者的抗折裂载荷值都可以满足临床修复的要求。

关键词: 下颌切牙, 瓷贴面, 全瓷冠, 抗折裂强度

Abstract: Objective: To compare the fracture resistance of mandibular incisor restored with porcelain veneers and all-ceramic crowns after root canal treatment. Methods: Thirty isolated mandibular incisors were selected and treated by external root canal treatment. After 3M fiber post reinforcement, they were randomly divided into three groups. The porcelain veneer group and the all-ceramic crown group were restored with IPS e.max Press. The resin filling group was directly filled with composite resin. The fracture resistances of three groups were tested with a universal material testing machine. Results: The fracture resistances of porcelain veneer group, all-ceramic crown group, and direct filling group were (439.59±56.97) N, (719.98±43.03) N, and (597.74±50.35) N, respectively (P<0.001). Conclusion: After root canal treatment, the mandibular incisors restored with all-ceramic crown had higher fracture resistance. Both all-ceramic crown and veneer can meet the requirements of clinic.

Key words: mandibular incisor, ceramic veneer, all ceramic crown, fracture resistance

陈世炜, 伍晓红. 根管治疗后下颌切牙瓷贴面与全瓷冠两种修复方式的抗折裂性对比研究[J]. 口腔医学研究, 2020, 36(3): 269-272.

CHEN Shiwei, WU Xiaohong. Comparison of Fracture Resistance of Mandibular Incisor Restored with Porcelain Veneers and All-ceramic Crowns after Root Canal Treatment[J]. Journal of Oral Science Research, 2020, 36(3): 269-272.

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根管治疗后下颌切牙瓷贴面与全瓷冠两种修复方式的抗折裂性对比研究

Comparison of Fracture Resistance of Mandibular Incisor Restored with Porcelain Veneers and All-ceramic Crowns after Root Canal Treatment

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