Orthodontic treatment with upper first and lower second premolars extracted.
- Author:
Jong Yeal NA
1
;
Tae Woo KIM
;
Won Sik YANG
Author Information
1. Department of Orthodontics, College of Dentistry, Seoul National University, Korea.
- Publication Type:Case Report
- Keywords:
Extraction;
Second premolar;
Class II div 1
- MeSH:
Bicuspid*;
Diagnosis;
Esthetics;
Humans;
Malocclusion;
Mandible;
Molar;
Overbite;
Root Resorption
- From:Korean Journal of Orthodontics
1996;26(1):113-124
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The purpose of this report is to present the successful improvement of occlusal relationship and facial esthetics in Class II div.1 malocclusion by orthodontic treatment with upper first premolars and lower second premolars extracted. Before treatment, the patients showed Class II div. 1 relation with severe overjet, deep overbite, large ANB angle, retrusive mandible and a convex soft tissue profile. After treatment, normal canine and molar relationships were obtained. Facial esthetics were improved. There were no mesial tipping of lower first molars and root resorptions. With the adequate diagnosis and treatment plan and biomechanics, the application of upper first and lower second premolar extraction may be one of good strategies in some Class II cases treatment.
