Three-dimensional finite element analysis of buccal-lingual mandibular width

doi:10.3969/j.issn.2095-4344.2013.28.011

Abstract

Abstract:

BACKGROUND: Due to dentition defect, dentition loss, periodontal disease, trauma and tumor, many patients have to face insufficient buccal-lingual mandibular width. At present, there is no consistent conclusion in suitable peri-implant buccal-lingual mandibular width.

OBJECTIVE: To investigate the stress of implant-bone interface with three-dimensional finite element method, in order to evaluate buccal-lingual mandibular width suitable for implants.

METHODS: Classes Ⅰ and Ⅲ mandible implant models (the buccal-lingual width of implant neck region was 1, 1.5, 2, 2.5, 3 and 3.5 mm) were loaded with 200 N forces vertically and at 60° oblique. Then, the stress and strain in the implant-bone interfacial were analyzed.

RESULTS AND CONCLUSION: Almost 2 mm or more than 2 mm of mandible bone width could result in good stress distribution in implant-bone interface. The stress distribution of oblique loading was much greater than that of vertical loading. Proper quantity of peri-implant mandibular width is good for stress distribution in implant-bone interface. In the clinical treatment, the oblique loading should be avoided or reduced.

Key words: tissue construction, oral tissue construction, dental implant, mandibular width, stress distribution, three-dimensional finite element analysis, class Ⅰ mandible bone, class Ⅲ mandible bone, National Natural Science Foundation of China

CLC Number:

R318

Zhang Jia-yu, Cui Jie, Liu Qin, He Hui-yu. Three-dimensional finite element analysis of buccal-lingual mandibular width[J]. Chinese Journal of Tissue Engineering Research, 2013, 17(28): 5164-5170.

Figures/Tables 4

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