Upper and lower second premolar extraction treatment case: Treatment strategy for Class III borderline cases.
- Author:
Tae Kyung KIM
1
;
Jong Tae KIM
;
Won Sik YANG
Author Information
1. Department of Orthodontics, College of Dentistry, Seoul National University, Korea. ccool@chollian.net
- Publication Type:Case Report
- Keywords:
Dish-in face;
Second premolar extraction;
Borderline case
- MeSH:
Bicuspid*;
Crowding;
Esthetics;
Humans;
Molar;
Recurrence;
Tooth
- From:Korean Journal of Orthodontics
2002;32(3):185-194
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
When treating borderline cases which have mild crowding, non-extraction treatment may be considered firstly. But crowding may be reappeared by relapse and it may have problems in esthetics and stability. Secondarily four first premolar extraction treatment may be considered. But this may cause dish-in face by overretracting anterior teeth. In this cases, extraction of four second premolar is preferred because this resolves crowding without aggravating profile and has good stability after treatment. So we review cases treated by four second premolar extraction which show good treatment results and stability. The patients had good profile, Class I molar relationship, mild crowding and skeletal discrepancy and their growth had almost completed.
