Evaluation of the mechanical behaviour of different devices for canine retraction
Dental press j. orthod. (Impr.)
;
17(3): 83-87, May-June 2012. ilus, tab
Artículo
en Inglés
| LILACS
| ID: lil-646353
ABSTRACT
OBJECTIVE:
To mechanically evaluate different systems used for canine retraction.METHODS:
Three different methods for partial canine retraction were evaluated retraction with elastic chain directly attached to bracket; elastic chain connected to bracket hook and with sliding jig activated with the aid of an elastic chain attached to a mini-implant. For this evaluation, a Typodont was adapted to simulate the desired movements when exposed to a heat source. After obtaining the measurements of the movements, statistical analysis was performed.RESULTS:
The mini-implant/sliding jig system (Groups M 0.018-in and M 0.019 x 0.026-in) favored less extrusion and distal inclination of the canines in the retraction stage (p < 0.005). Meanwhile, the retraction system with elastic chain directly attached to the orthodontic brackets (Groups C 0.018-in and 0.019 x 0.026-in) favored greater inclination and extrusion than the others, followed by the system of elastic chain attached to the hook (Groups G 0.018-in and 0.019 x 0.026-in).CONCLUSIONS:
Canine retraction with the mini-implant/sliding jig system showed the best mechanical control. The worst results were observed with a 0.018 archwire when the elastic chain was attached to the bracket.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Idioma:
Inglés
Revista:
Dental press j. orthod. (Impr.)
Asunto de la revista:
Ortodoncia
Año:
2012
Tipo del documento:
Artículo
País de afiliación:
Brasil
Similares
MEDLINE
...
LILACS
LIS