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Biomechanical evaluation of maxillary L efort Ι fracture with bioabsorbable osteosynthesis internal fixation
Author(s) -
Wu Wei,
Zhou Jiang,
Xu ChongTao,
Zhang Jie,
Jin YanJiao,
Sun GengLin
Publication year - 2014
Publication title -
dental traumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 81
eISSN - 1600-9657
pISSN - 1600-4469
DOI - 10.1111/edt.12120
Subject(s) - internal fixation , fixation (population genetics) , osteosynthesis , orthodontics , finite element method , occlusion , molar , dentistry , materials science , medicine , surgery , structural engineering , engineering , population , environmental health
The aim of this study was to apply biomechanical analysis model to evaluate the effects of bioabsorbable internal fixation devices on maxillary Lefort Ι fracture. CT scan technology and the finite element software ( ansys ) were used to establish three‐dimensional finite element models of five resorbable internal fixation devices in maxillary Lefort Ι fractures. We used the model to calculate the stress of the upper jaw and internal fixation. We further analyzed the stability of fixation under four occlusions. The fixation using two bioabsorbable plates was not stable. The zygomaticomaxillary pillars fixation is more stable than other fixations. The stability of fracture fixation was influenced with the molar occlusion. The current study developed a functional three‐dimensional finite element model of bioabsorbable internal fixation and compared the stability of five fixation methods for maxillary Lefort Ι fractures. The results would facilitate the application of bioabsorbable materials in dental clinic.