Modified fixed reverse Twin-block combined with maxillary protraction appliance in the treatment of AngleⅢ skeletal anterior crossbite
- VernacularTitle:改良固定反式TBA联合前牵矫治前牙反
- Author:
Hong LIU
;
Yinzhong DUAN
;
Qiaoling CHEN
- Publication Type:Journal Article
- Keywords:
The modified fixed reverse twin-block appliance combine maxillary protraction;
Angle Ⅲ malocclusion;
Skeletal anterior crossbite
- From:
Journal of Practical Stomatology
2001;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To evaluate the effects of the modified fixed r everse Twin-block appliance(TBA) combined with maxillary protraction appliance( MPA) in the treatment of early Angle Ⅲ skeletal anterior crossbite. Met hods:TBA combined with MPA was used in 15 growing subjects with early An gle Ⅲskeletal malocclusion (group TBA-MPA). Another 15 subjects with the same type of malocclusion were treated by MPA(group MPA). The effects of treatment we re studied by cephalometric measurments.Results:3-5 months afte r treatment SNB, B-Vert T, Po-Vert T,NPo-FH,Co-Po and 1-NB in group 1 were decreased more than those in group 2 (P0.05).Conclusion:Angle Ⅲ skeletal ante rior crossbite can be corrected successfully with reverse TBA combined with maxi llary protraction appliance by mandible retrusion and maxilla forward growth.
