Artículos de revistas
A comparative evaluation of the hybrid technique for fixation of the sagittal split ramus osteotomy in mandibular advancement by mechanical, photoelastic, and finite element analysis
Registro en:
Oral Surgery Oral Medicine Oral Pathology Oral Radiology. Elsevier Science Inc, v. 114, n. 5, n. S60, n. S68, 2012.
2212-4403
WOS:000311369000010
10.1016/j.tripleo.2011.08.027
Autor
Sato, FRL
Asprino, L
Consani, S
Noritomi, PY
de Moraes, M
Institución
Resumen
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Objective. This study evaluated the mechanical characteristics and stress distribution of the hybrid technique fixation of the sagittal split ramus osteotomy. Study Design. In the mechanical test, 10 polyurethane replicas of human hemimandibles of each group were submitted to linear loading test. For the photoelastic evaluation, 3 hemimandible replicas of photoelastic resin were subjected to photoelastic analysis. In the finite element analysis, 3 computer models simulated the displacement and the results of maximum principal stress were analyzed. Results. The results of this study demonstrated that the fixation technique with 3 bicortical screws presented better mechanical resistance and stress distribution pattern when compared with the hybrid technique that, on the other hand, presents better results in comparison with a miniplate and monocortical screws. Conclusions. The results suggest that the hybrid technique increased the resistance and improved stress distribution of miniplate/monocortical screw fixation, maintaining most of the advantages of this technique. (Oral Surg Oral Med Oral Pathol Oral Radiol 2012;114(suppl 5):S60-S68) 114 5 S S60 S68 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) CNPq [141231/2008-4]