Influence of bone quality on initial stability of implantable distraction A three-dimensional finite element analysis / 中国组织工程研究
Chinese Journal of Tissue Engineering Research
; (53): 9100-9103, 2010.
Artigo
em Chinês
| WPRIM (Pacífico Ocidental)
| ID: wpr-402223
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND:
The initial stability of implantable distractor depends on the stress distribution of bone-distractor interface. The understanding of the biomechanical change in initial stage can improve the clinical success ratio of implantable distractor used in alveolar crest.OBJECTIVE:
To evaluate the influence of bone quality on stress distribution and deformation in initial distraction stage.METHODS:
Four three-dimensional models with 10 079-11 456 cells and 17 299-20 101 nodes were prepared by finite element methods (11 mm in length and 3.7-4.1 mm diameter). Implantable distractor was embedded in a segment of mandible. The elastic modulus of cancellous bone and the thickness of cortical bone, stress and deformation of bones and distractor were calculated.RESULTS ANDCONCLUSION:
The highest stress in the bone was concentrated in transportable section and the maximum deformation of transportable section was observed at the edge of the cortical bone, both of which were increased with bone quality decreased. The subsidence of distractor was observed with bone quality decreased. Bone quality influenced the initial stability and the result of the implantal distraction. The decrease of bone elastic modulus would increase the failure risk of distraction osteogenisis.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Tissue Engineering Research
Ano de publicação:
2010
Tipo de documento:
Artigo