[Research of cranio-occlusional change of skeletal class III malocclusion in permanent dentition treated by the multiloop edgewise arch wire technique].
OBJECTIVE
To analyze the mechanics in correction of skeletal class III malocclusion with Multiloop Edgewise Arch Wire (MEAW).


METHODS
15 patients with skeletal class III malocclusion were treated with MEAW technique. Cephalometric analysis was performed with pre-treatment and post-treatment cephalograms. Paired t-test was conducted to assess the treatment effects.


RESULTS
L6-XI decreased by 2.87 mm, L6/MP increased by 8.60 degrees, L1-XI decreased by 2.60 mm, OP/MP increased by 2.33 degrees. Skeleton changed a little. There was no significant change in the soft tissue.


CONCLUSIONS
(1) Dento-alveolar compensation is the main change after the treatment by MEAW technique; (2) The improvement in molar relationship and overjet is achieved with upright and distal movement of the lower posterior teeth; (3) The lower anterior teeth moved lingually and protracted. Occlusal plane is flattened.
Jin
Chang-wei
CW
Dept. of Orthodontics, School of Stomatology, Peking University, Beijing 100081, China.
Lin
Jiu-xiang
JX
Xu
Bao-hua
BH
D000293:Adolescent; D000328:Adult; D002508:Cephalometry; D019229:Dentition, Permanent; D005260:Female; D006801:Humans; D008297:Male; D008313:Malocclusion, Angle Class III / Q000628:therapy*; D009969:Orthodontic Wires; D009971:Orthodontics, Corrective / Q000379:methods*