纤维桩直径与牙本质肩领高度对桩核修复体抗折力影响的交互效应

doi:10.13701/j.cnki.kqyxyj.2016.10.004

口腔医学研究 ›› 2016, Vol. 32 ›› Issue (10): 1015-1019.DOI: 10.13701/j.cnki.kqyxyj.2016.10.004

纤维桩直径与牙本质肩领高度对桩核修复体抗折力影响的交互效应

李清, 徐东选^*

武汉大学口腔医学院口腔医学生物工程教育部重点实验室湖北武汉 430079

收稿日期:2016-05-03 出版日期:2016-10-26 发布日期:2016-10-26
通讯作者: 徐东选,电话:027—85855165
作者简介:李清(1979~ ),男,湖北人,博士,副教授,主要从事口腔修复学临床及科研工作。
基金资助:
国家自然科学基金(编号:81100784)

Interaction Effects of Fiber Post Diameter and Ferrule Height on Fracture Resistance of Post-Retained Restorations.

LI Qing, XU Dong-xuan^*.

Hubei-MOSTKLOS & KLOBM ,School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China

Received:2016-05-03 Online:2016-10-26 Published:2016-10-26

摘要/Abstract

摘要： 目的:研究纤维桩直径和肩领高度对桩核修复体抗折能力的交互影响。方法:60颗上颌中切牙切除牙冠部分,按邻面釉-牙骨质界上残余牙体高度分为0 mm、1 mm、2 mm、3 mm四组(n=15)。按照常规桩核修复技术,使用Macro Lock纤维桩(2#,3#和4#)制作试样。采用静态折裂实验获取各试样的最大折裂力;通过断口图像分析试样折裂情况。双因素方差分析肩领高度和纤维桩直径对试样抗折能力的影响。结果:双因素方差分析结果显示肩领高度和纤维桩直径存在明显交互作用(P=0.006)。在0 mm和1 mm组,增加纤维桩直径能显著提高试样抗折能力;在2 mm组,使用2#和3#纤维桩时,试样抗折力无显著差异;在3 mm组,不同直径纤维桩对试样抗折力均无显著影响。结论:纤维桩直径对于桩核修复体抗折能力的影响随着肩领高度增加而减弱。增加肩领高度能有效提高桩核修复体抗折能力。

关键词: 交互作用, 肩领高度, 桩直径, 抗折能力, 桩核修复体

Abstract: Objective: To explore the interaction effects of ferrule height and fiber post dimension on the fracture resistance of endodontically treated teeth. Methods: Sixty endodontically treated incisors were randomly assigned into four groups (n=15), and decoronated at 0 mm, 1 mm, 2 mm, and 3 mm to the proximal cemento-enamel junction (CEJ). The roots were restored using fiber posts with various dimensions. All specimens were subjected to fracture failure tests, loaded with an incremental force at an angle of 45° to the long axis of the roots. Fracture failure loads were recorded and analyzed using two-way analysis of variance (ANOVA), followed by the Tukey's post hoc comparisons. The fracture modes were investigated using fractographic analysis. Results: The interaction effects of ferrule height and post dimension were detected (P=0.006). Post dimension significantly influenced the fracture failure loads of specimens with 0 mm and 1 mm ferrule. No significant difference was found between 2# and 3# posts in 2 mm ferrule, or among all the dimensions of posts in 3 mm ferrule. Increasing of ferrule height decreased the probability of the debonding at the core/dentin interface. Conclusion: The effect of post dimension on fracture resistance decreases with the increasing of ferrule height. Increasing of ferrule height potentially postpones the processing of the ultimate fracture failure.

Key words: Interaction effect, Ferrule height, Post dimension, Fracture resistance, Post-restored teeth

中图分类号:

R783.3

李清, 徐东选. 纤维桩直径与牙本质肩领高度对桩核修复体抗折力影响的交互效应[J]. 口腔医学研究, 2016, 32(10): 1015-1019.

LI Qing, XU Dong-xuan.. Interaction Effects of Fiber Post Diameter and Ferrule Height on Fracture Resistance of Post-Retained Restorations.[J]. Journal of Oral Science Research, 2016, 32(10): 1015-1019.

参考文献

[1] Varvara G, Perinetti G, Di Iorio D, et al. In vitro evaluation of fracture resistance and failure mode of internally restored endodontically treated maxillary incisors with differing heights of residual dentin [J]. J Prosthet Dent,2007,98(5)∶365-372
[2] 宋亮,徐斌,陈慧娟,等.桩核冠修复不同程度缺损下颌前磨牙的三维有限元分析[J].口腔医学研究,2015,31(10)∶1013-1015
[3] Sorensen JA, Engelman MJ. Ferrule design and fracture resistance of endodontically treated teeth [J]. J Prosthet Dent,1990,63(5)∶529-536
[4] Isidor F, Brndum K, Ravnholt G. The influence of post length and crown ferrule length on the resistance to cyclic loading of bovine teeth with prefabricated titanium posts [J]. Int J Prosthodont,1999,12(1)∶78-82
[5] Trabert KC, Cooney JP. The endodontically treated tooth: restorative concepts and techniques [J]. Dent Clin North Am,1984,28(4)∶923-951
[6] Lu ZY, Zhang YX. Effect of post-core design and ferrule on fracture resistance of endodontically treated maxillary central incisors [J]. J Prosthet Dent,2003,89(4)∶368-373
[7] 郭彬,谢伟丽,刘一志,等.不同形态的氧化锆陶瓷桩对牙本质应力的三维有限元分析[J].口腔医学研究,2015,31(11)∶1104-1107
[8] 唐昊喆,刘伟,许方文,等.牙本质肩领形态及纤维桩的长度对患牙抗折强度影响的研究[J].口腔颌面修复学杂志,2013,14(4)∶243-246
[9] Okamoto K, Ino T, Iwase N, et al. Three-dimensional finite element analysis of stress distribution in composite resin cores with fiber posts of varying diameters [J]. Dent Mater J,2008,27(1)∶49-55
[10] Peroz I, Blankenstein F, Lange KP, et al. Restoring endodontically treated teeth with posts and cores-a review [J]. Quintessence Int,2005,36(9)∶737-746
[11] Tang W, Wu Y, Smales RJ. Identifying and reducing risks for potential fractures in endodontically treated teeth [J]. J Endod,2010,36(4)∶609-617
[12] Fokkinga WA, Kreulen CM, Le Bell-Rnnlf AM, et al. In vitro fracture behavior of maxillary premolars with metal crowns and several post-and-core systems [J]. Eur J Oral Sci,2006,114(3)∶250-256
[13] Buttel L, Krastl G, Lorch H, et al. Influence of post fit and post length on fracture resistance [J]. Int Endod J,2009,42(1)∶47-53
[14] Reeh ES, Douglas WH, Messer HH. Stiffness of endodontically treated teeth related to restoration technique [J]. J Dent Res,1989,68(11)∶1540-1544
[15] Holmes DC, Diaz-Arnold AM, Leary JM. Influence of post dimension on stress distribution in dentin [J]. J Prosthet Dent,1996,75(2)∶140-147
[16] Li Q, Xu B, Wang Y, et al. Effects of auxiliary fiber posts on endodontically treated teeth with flared canals [J]. Oper Dent,2011,36(4)∶380-389
[17] Sorrentino R, Aversa R, Ferro V, et al. Three-dimensional finite element analysis of strain and stress distributions in endodontically treated maxillary central incisors restored with different post, core and crown materials [J]. Dent Mater,2007,23(8)∶983-993
[18] 张一祎,阿依古丽.阿不都斯木,李清,等.桩核冠修复体牙本质肩领效应的扩展有限元分析[J].中华口腔医学杂志,2014,49(6)∶357-361
[19] Xu BT, Wang YN, Li Q. Modeling of damage driven fracture failure of fiber post-restored teeth [J]. J Mech Behav Biomed Mater,2015,49(3)∶277-289
[20] 陈济芬,丁宏.不同制作和粘接方法对铸造金属桩核固位性影响的研究[J].口腔医学研究,2016,32(4)∶408-411

纤维桩直径与牙本质肩领高度对桩核修复体抗折力影响的交互效应

Interaction Effects of Fiber Post Diameter and Ferrule Height on Fracture Resistance of Post-Retained Restorations.

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