Biomechanical study on restorative methods of unilateral maxilla based on finite element analysis / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 590-605, 2014.
Artigo
em Chinês
| WPRIM
| ID: wpr-290709
ABSTRACT
This paper is to report our study in which the differences between prosthetic restoration and surgical reconstruction using traditional clasp retention technology were analyzed based on three-dimensional finite element methods in our laboratory. Firstly, the maxillary unilateral defect model was developed using medical image processing software MIMICS. Secondly, the prosthesis was generated by mirroring technology. The clasp was designed according to the methods raised by Aramany. Then, the stress distribution of maxilla was calculated by simulating occlusion. According to the results, after osseointegration of surgical reconstruction, stresses of unaffected abutments were reduced significantly, and less stress of junction occurred near zygoma of affected side, which were all less than stresses of prosthesis restoration. Thus, removing the clasp of surgical reconstruction increased the stresses of unaffected abutments. The stress trends of maxillary components were different between prosthetic restoration and surgical reconstruction. Surgical reconstruction is better than prosthesis restoration in protection of the abutments. Clasp can alleviate the occlusal burden of maxilla. Varieties of retentive technologies can be considered in prosthesis restoration. The surgical reconstruction is more conducive to rehabilitate unilateral maxilla biomechanically in clinic.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Cirurgia Geral
/
Zigoma
/
Fenômenos Biomecânicos
/
Processamento de Imagem Assistida por Computador
/
Osseointegração
/
Análise de Elementos Finitos
/
Reconstrução Mandibular
/
Maxila
/
Prótese Maxilofacial
/
Métodos
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2014
Tipo de documento:
Artigo
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