Orthodontic treatment with maxillary incisor extraction
10.3969/j.issn.1001-3733.2015.03.011
- VernacularTitle:拔除上颌中切牙的正畸治疗分析
- Author:
Jianping WEI
;
Jiajun MA
- Publication Type:Journal Article
- Keywords:
Maxillary incisor;
Extraction treatment;
Orthodontics
- From:
Journal of Practical Stomatology
2015;(3):347-351
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the effectiveness and treatment feature of maxillary incisor extraction in orthodontics.Methods:9 patients underwent orthodontic treatment with maxillary incisor extraction,5 female and 4 male,with an average age of 1 7.2 years at the start,were included.5 patients were treated by extraction of both upper incisors and lower first premolars,4 by extraction of the abnor-mal incisor and the first premolars in the other three quadrants.Cephalometric and Bolton index analysis were carried out.Results:Sat-isfactory treatment results were observed in all patients.Before treatment the predicted Bolton index of the patients of the anterior ratio and the overall ratio were 80.1 4% and 91 .3%,after orthodontic treatment 78.68% and 90.28%,respectively.Cephalometric analysis showed that U1 -NA(mm),U1 -NA,L1 -NB(mm),L1 -NB,U1 -SN,L1 -MP,UL-E and LL-E were decreased(P <0.05).Conclu-sion:Individual treatment plan based on Bolton index analysis and the corresponding techniques and methods,the patients with abnor-mal upper incisors can be effectively treated with the extraction of maxillary incisors.