Effect of micro-implant anchorage combined with selective extracting maxillary first molar on second orthodontic treatment of malocclusion
10.3760/cma.j.issn.1671-0290.2014.01.012
- VernacularTitle:微种植体支抗结合选择性上颌第一磨牙拔除应用于二次正畸治疗错(牙合)畸形的疗效分析
- Author:
Dinggen CHEN
;
Fanglin MI
;
Zhiqiang MING
- Publication Type:Journal Article
- Keywords:
Orthodontics;
Correction;
Micro implants anchorage;
Molar;
Tooth extrocion;
Malocclusion
- From:
Chinese Journal of Medical Aesthetics and Cosmetology
2014;20(1):44-47
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the clinical effect of both micro-implant anchorage and selective extracting maxillary first molar to correct the failure of orthodontics.Methods From January 2006 to June 2012,24 cases who suffered from failure of orthodontics were treated in this department.To all patients,bilateral maxillary first molars were extracted,and micro-implant anchorage were planted into maxilla from buccal alveolar ridge to correct malocclusion acting as anchorages.Lateral cephalometric radiographs,intraoral photograph and facial photograph of every patient were taken before and after treatments; Their over bite and overjet molar relationship and incisors retraction were compared before and after treatments.Methods All the micro implant anchorages were sucessfuly implanted except two patients who experienced second operation owing to luxation of three implants.All the molars were strengthed and the profile improved along with their normal over bite and overjet.Conclusions The treatment of using micro-implant anchorage and selective extracting maxillary first molar is an ideal option of second orthodontics.Unconventional tooth extraction is used in this treatment.Micro implant anchorages are stable,acceptable and effective in clinical application.
