中国组织工程研究

中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (14): 2162-2167.doi: 10.3969/j.issn.2095-4344.0841

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

无箍效应时不同黏结材料对扁圆形根管旁路充填后采用CAD/CAM一体化纤维桩核修复的黏结效果

齐 鲁1，王 星2，吴佩玲1   

  1. 1新疆医科大学第二附属医院口腔科，新疆维吾尔自治区乌鲁木齐市 830063；2新疆医科大学第一附属医院口腔科修复科，新疆维吾尔自治区乌鲁木齐市 830054
  • 收稿日期:2018-01-06 出版日期:2018-05-18 发布日期:2018-05-18
  • 通讯作者: 吴佩玲，主任医师，新疆医科大学第二附属医院口腔科，新疆维吾尔自治区乌鲁木齐市 830063
  • 作者简介:齐鲁，男，1981年生，山东省淄博市人，汉族，2010年新疆医科大学毕业，硕士，主治医师，主要从事口腔牙体牙髓病研究。
  • 基金资助:

    新疆维吾尔自治区青年自然科学基金自助项目(2015211C111)：无箍效应时不同桩核在扁根管旁路充填后牙体修复的实验研究

Bonding effects of different adhesive materials with no ferrule effect in the dental restoration with CAD/CAM-fabricated one-piece fiber post-and-core after bypass obturation of oval root canals

Qi Lu1, Wang Xing2, Wu Pei-ling1   

  1. 1Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China; 2Department of Prosthodontics, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Received:2018-01-06 Online:2018-05-18 Published:2018-05-18
  • Contact: Wu Pei-ling, Chief physician, Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China
  • About author:Qi Lu, Master, Attending physician, Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the Natural Science Foundation for the Youth in Xinjiang Uygur Autonomous Region, No. 2015211C111

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摘要：

文章快速阅读：

 

文题释义：
桩核修复的箍效应：指的是由箍包绕所产生的抗力效应，桩核技术中的箍是指最终修复体全冠边缘包绕至少 2 mm的牙体，这种包绕会产生箍的效应，一直都被认为是桩冠修复成功的可靠保证。
一体化玻璃纤维桩核：是一种利用CAD/CAM技术切削而成的新型修复体，它兼顾了铸造桩核良好的密合性和玻璃纤维材料适宜的弹性模量。因此如何为CAD/CAM一体化纤维桩核选择一种在无箍效应作用下合理的黏结系统，就成为今天临床工作的重点。
树脂突：牙釉质经酸处理后，由光滑表面变为具有高表面自由能的蜂窝状，黏结剂通过毛细作用渗入微孔中，形成树脂突，树脂突与牙釉质之间形成微机械嵌合。
 
 
背景：一体化玻璃纤维桩核兼顾了铸造桩核良好的密合性和玻璃纤维材料适宜的弹性模量，如何为CAD/CAM一体化纤维桩核选择一种在无箍效应作用下合理的黏结系统，成为临床工作的重点。
目的：比较3种黏结材料在无箍效应时，对扁圆形根管旁路充填后采用CAD/CAM一体化纤维桩核修复的黏结效果。
方法：将90颗离体人下颌第一前磨牙随机分为3组，截冠后统一工作长度为14 mm，每组30颗，在根管手术显微镜下运用ProTaper Next 镍钛系统进行根管旁路预备，统一采用热垂直加压充填技术进行根管旁路充填；使用1-4#Pesso钻去除根管内牙胶预备桩道，预备深度为9 mm，均不预备牙本质肩领，采用CAD/CAM技术制作一体化纤维桩核，3组分别运用KetacTM Cem Easymix玻璃离子、ONE-STEP PLUS通用型光固化黏结剂及RelyXTM Unicem 2 自混自黏结树脂水门汀将CAD/CAM一体化纤维桩核黏结于桩道内，采用万用力学测量仪分析3种黏结材料对CAD/CAM一体化纤维桩的黏结效果。

结果与结论：ONE-STEP PLUS通用型光固化黏结剂组、RelyXTM Unicem 2 自混自黏结树脂水门汀组修复体的脱位力、微拉伸强度强于KetacTM Cem Easymix玻璃离子组(P < 0.05)；RelyXTM Unicem 2 自混自黏结树脂水门汀组修复体的脱位力、微拉伸强度略高于ONE-STEP PLUS通用型光固化黏结剂组，但差异无显著性意义。结果表明在无箍效应时，应用CAD/CAM一体化纤维桩进行扁圆形根管旁路充填后的牙体修复，以RelyXTM Unicem 2 自混自黏结树脂进行修复能获得较为良好的黏结效果。

ORCID: 0000-0002-7510-3712(吴佩玲)

关键词: 口腔材料, 箍效应, 扁圆形根管, 旁路充填, CAD/CAM一体化纤维桩核, 黏结效果, 生物材料

Abstract:

BACKGROUND: One-piece glass fiber post-and-core achieves a good sealing between cast-post and core and provides a suitable elastic modulus of the glass fiber material. Therefore, selecting a reasonable bonding system for the CAD/CAM-fabricated fiber post-and-core with no ferrule effect has become an important issue in clinical practice.

OBJECTIVE: To compare the bonding effects of three kinds of adhesive materials without ferrule effect in the CAD/CAM-fabricated dental restoration after bypass obturation of oval root canals.
METHODS: Ninety extracted first mandibular premolars with the working length set to 14 mm were randomized into three groups (n=30 per group). The root canal was prepared with the ProTaper next nickel titanium system under a dental operating microscope. The bypass obturation with oval root canals was achieved using the warm gutta-percha vertical condensation technique. 1-4 # Pesso drills were used to remove the gum in the root canal, with the preparatory depth of 9 mm, but with no shoulder collar. CAD/CAM technology was used to prepare one-piece fiber post-and-cores which were bonded using the KetacTM Cem Easymix glass ion, ONE-STEP PLUS universal UV-curable adhesive and RelyXTM Unicem 2 self-adhesive resin cement in different groups. The bonding effect of three kinds of adhesive materials was analyzed by using a universal mechanical measuring instrument.
RESULTS AND CONCLUSION: Compared with the KetacTM Cem Easymix glass ion group, the debonding force and micro-tensile strength were significantly stronger in the other two groups (P < 0.05), while compared with the ONE-STEP PLUS universal UV-curable adhesive group, the debonding force and micro-tensile strength were slightly higher in the RelyXTM Unicem 2 self-adhesive resin cement group, but there was no significant difference between the two groups. To conclude, RelyXTM Unicem 2 self-adhesive resin cement in the absence of ferrule effect can achieve better bonding effect on the CAD/CAM-fabricated one-piece fiber post-and-core after bypass obturation of oval root canals. 

Key words: Post and Core Technique, Root Canal Obturation, Dental Cements, Tissue Engineering

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