Three-dimensional finite element analysis to evaluate biomechanical effects of different alveolar decortication approaches on rate of canine retraction.
Int Orthod
; 17(2): 216-226, 2019 06.
Article
en En
| MEDLINE
| ID: mdl-31000446
ABSTRACT
INTRODUCTION:
The aim of this study was to compare different corticotomy approaches and determine their biomechanical effects on rate of canine displacement when compared to conventional orthodontics.METHOD:
Three-dimensional Finite Element Models with conventional non-corticotomy approach (model 1) and three corticotomy approaches ensuing buccal and palatal vertical cuts (model 2), interseptal bone reduction (model 3), buccal vertical cuts (model 4) were fabricated. Displacement of the canine and von Mises stresses in the canine and trabecular bone were calculated and compared under a distal retraction force of 1.5N.RESULTS:
The maximum displacement of canine with minimum anchorage loss was seen in model 3 followed by model 2, model 4 and model 1. The maximum equivalent (von Mises) stress was concentrated mainly on the distal side of canine in model 3 and had a uniform distribution of stresses on entire root surface.CONCLUSIONS:
Corticotomy approaches effectively accelerated maxillary canine retraction, exhibiting twice the rate of canine movement with minimum anchorage loss when compared to non-corticotomy approach. Corticotomy with interseptal bone reduction was most effective in terms of canine displacement and stress distribution.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Técnicas de Movimiento Dental
/
Análisis de Elementos Finitos
/
Diente Canino
/
Imagenología Tridimensional
/
Análisis del Estrés Dental
Límite:
Humans
Idioma:
En
Revista:
Int Orthod
Asunto de la revista:
ORTODONTIA
Año:
2019
Tipo del documento:
Article
País de afiliación:
India