氧化锆角度基台及种植体周骨壁应力分布的有限元分析

上海口腔医学 ›› 2015, Vol. 24 ›› Issue (4): 447-450.

氧化锆角度基台及种植体周骨壁应力分布的有限元分析

杨炎忠¹, 田小华¹, 周延民²

1.杭州口腔医院,浙江杭州 313000; 2.吉林大学附属口腔医院,吉林长春 130041

收稿日期:2014-07-02 出版日期:2015-08-20 发布日期:2015-09-10
通讯作者: 周延民,Tel:0431-88796025,E-mail:zhouym@jlu.edu.cn E-mail:zhouym@jlu.edu.cn
作者简介:杨炎忠（1979-）,男,硕士,E-mail:15167134818@163.com

Effect of zirconia abutment angulation on stress distribution in the abutment and the bone around implant: a finite element study

YANG Yan-zhong¹, TIAN Xiao-hua¹, ZHOU Yan-min²

1.Hangzhou Stomatological Hospital. Hangzhou 313000, Zhejiang Province; 2.Stomatological College of Jilin University. Changchun 130041, Jilin Province, China

Received:2014-07-02 Online:2015-08-20 Published:2015-09-10

摘要/Abstract

摘要： 目的研究氧化锆角度基台及种植体周骨壁应力的分布情况,为临床应用提供参考。方法采用三维有限元分析方法,对氧化锆直基台、15°、20°基台修复时的种植体基台、固定螺丝及种植体周骨壁应力的分布进行分析,并与常规钛基台进行比较。结果角度基台模型的基台、螺丝、种植体周骨壁的等效应力大于直基台;20°基台模型的基台、螺丝、种植体周骨壁等效应力远远大于15°基台模型;氧化锆基台模型与钛基台模型相比,2组无显著差异。结论基台角度对应力分布有影响,并随角度的增大而增大,提示临床上应注意种植体植入方向,尽量使用直基台或小角度基台,以减少种植体颈部骨吸收及修复并发症的发生;基台材料改变对基台、螺丝、种植体周骨壁的应力分布无显著影响,从生物力学考虑,临床上可以放心选用氧化锆角度基台。

关键词: 氧化锆, 基台, 角度, 种植体

Abstract: PURPOSE: To investigate the effect of three different zirconia angular abutments on the stress distribution in bone and abutment using three-dimensional finite element analysis, and provide instruction for clinical application. METHODS: Finite element analysis (FEA) was applied to analyze the stress distribution of three different zirconia/titanium angular abutments and bone around implant. RESULTS: The maximum Von Minses stress that existed in abutment, bolt and bone of the angular abutment model was significantly higher than that existed in the straight abutment model. The maximum Von Minses stress that existed in abutment, bolt and bone of the 20° angular abutment model was significantly higher than that existed in 15° angular abutment model. There was no significant difference between zirconia abutment model and titanium abutment model. CONCLUSIONS: The abutment angulation has a significant influence on the stress distribution in the abutment, bolt and bone, and exacerbates as the angulation increases, which suggest that we should take more attention to the implant orientation and use straight abutment or little angular abutment. The zirconia abutment can be used safely, and there is no noticeable difference between zirconia abutment and titanium abutment on stress distribution.

Key words: Zirconia, Abutment, Angulation, Implant Shanghai J Stomatol, 2015, 24(4):447-450.

中图分类号:

R781.4.2

杨炎忠, 田小华, 周延民. 氧化锆角度基台及种植体周骨壁应力分布的有限元分析[J]. 上海口腔医学, 2015, 24(4): 447-450.

YANG Yan-zhong, TIAN Xiao-hua, ZHOU Yan-min. Effect of zirconia abutment angulation on stress distribution in the abutment and the bone around implant: a finite element study[J]. Shanghai Journal of Stomatology, 2015, 24(4): 447-450.

参考文献

[1] 钟倩, 周国兴, 光寒冰, 等. 个性化铸瓷复合基台在前牙种植美学修复中的临床应用[J]. 华西口腔医学杂志, 2013, 31(4): 429-433.
[2] Chun HJ, Shin HS, Han CH, et al. Influence of implant abutment type on stress distribution in bone under various loading conditions using finite element analysis[J]. Int J Oral Maxillofac Implants, 2006, 21(2): 195-202.
[3] 王辉, 杨小东, 吴大怡, 等. 钛金属氧化锆陶瓷颈圈牙种植体的结构强度与生物相容性研究[J]. 中国口腔种植学杂志, 2005, 10(2): 51-55.
[4] Sadrimanesh R, Siadat H, Sadr-Eshkevari P, et al. Alveolar bone stress around implants with different abutment angulation: an FE-analysis of anterior maxilla[J]. Implant Dent, 2012, 21(3): 196-201.
[5] Saab XE, Griggs JA, Powers JM, et al. Effect of abutment angulation on the strain on the bone around an implant in the anterior maxilla: a finite element study[J]. J Prosthet Dent, 2003, 97(2): 85-92.
[6] Sadrimanesh R, Siadat H, Sadr-Eshkevari P, et al. Alveolar bone stress around implants with different abutment angulation: an FE-analysis of anterior maxilla[J]. Implant Dent, 2012, 21(3): 196-201.
[7] Thulasidas S, Givan DA, Lemons JE, et al. Influence of implant angulation on the fracture resistance of zirconia abutments[J]. J Prosthodont, 2015,24(2):127-135.
[8] Dhingra A, Weiner S, Luke AC, et al. Analysis of dimensional changes in the screw and the surface topography at the interface of a titanium screw and a zirconia abutment under cyclic loading: an in vitro study[J]. Int J Oral Maxillofac Implants, 2013, 28(3): 661-669.
[9] Tsumita M, Kokubo Y, Kano T, et al. The effect of fatigue loading on the screw joint stability of zirconium abutment[J]. J Prosthodont Res, 2013, 57(3): 219-223.
[10] Kutkut A, Abu-Hammad O, Mitchell R. Esthetic considerations for reconstructing implant emergence profile using titanium and zirconia custom implant abutments: fifty case series report[J]. J Oral Implantol, 2013 Oct 31. [Epub ahead print]
[11] de Medeiros RA, Vechiato-Filho AJ, Pellizzer EP, et al. Analysis of the peri-implant soft tissues in contact with zirconia abutments: an evidence-based literature review[J]. J Contemp Dent Pract, 2013, 14(3): 567-572.
[12] Nothdurft FP, Fontana D, Ruppenthal S, et al. Differential behavior of fibroblasts and epithelial cells on structured implant abutment materials: a comparison of materials and surface topographies[J]. Clin Implant Dent Relat Res, 2014 Jul 26. [Epub ahead of print]
[13] Kim YS, Shin SY, Moon SK, et al. Surface properties correlated with the human gingival fibroblasts attachment on various materials for implant abutments: a multiple regression analysis[J]. Acta Odontol Scand, 2015,73(1):38-47.
[14] Zembic A, Philipp AO, Hämmerle CH, et al. Eleven-year follow-up of a prospective study of zirconia implant abutments supporting single all-ceramic crowns in anterior and premolar regions[J]. Clin Implant Dent Relat Res, 2014 Sep 2.[Epub ahead of print]
[15] Stegaroiu R, Khraisat A, Nomura S, et al. Influence of superstructure materials on strain around an implant under 2 loading conditions: a technical investigation[J]. Int J Oral Maxillofac Implants, 2004, 19(5): 735-742.