A preliminary study about the timing of maxillary protraction therapy for Angle Ⅲ malocclusion
- VernacularTitle:AngleⅢ患者上颌前牵引矫治时机的初步探讨
- Author:
Jianyi FAN
;
Xiangyu YE
;
Hong ZHOU
- Publication Type:Journal Article
- Keywords:
Maxillary protraction;
Angle class Ⅲ malocclusion;
Cephalometry
- From:
Journal of Practical Stomatology
2001;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study the effective initiating time of the maxillary protraction therapy for the children with skeletal classⅢ malocclusion. Methods: 20 cases with class Ⅲ malocclusion were divided into 2 groups: older group (9～ 12 years old) and younger group(5～8 years old), and treated with maxillary protraction. Before and after treatment cephalometric radiographs were taken and analyzed. Results: Good effects were found in both groups. The treatment in the younger patients showed the advantages of shorter treatment period, more skeletal changes, less dental changes and less side effects. Conclusion: Earlier maxillary protraction is more beneficial to the children with Angle Ⅲ malocclusion.
