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J Korean Dent Assoc. 1975;13(10):929-933. Published online October 31, 1975.
- Angle씨 Ⅲ급 부정교합의 치험례
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이희조1, 서정훈2
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1서울대학교 치과대학
2서울대학교 치과대학 -
- A CASE REPORT OF ANGLE'S CLASSⅢ MALOCCLUSION
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Hui-Jo Lee1, Jeong-Hun Seo2
- Abstract
- A girl aged 15 years 6 months, had a class Ⅲ malocclusion characterized by severe maxillary anterior crowding and a retarded maxilla. Molar relationship was class Ⅲ on both sides, incisor overjet was - 2.9mm. and incisor overbite was 5.5mm. The patient underwent extraction of four first premolars and was trested with a multi-banded light force system. After 13 months, the patient gained a normal verbite-overjet relationship of anterior teeth and a class 1 molar relationship. Superimposition of pretreatment and posttreatment cephalograms upon the line SN registered at S showed backward downward rotation of the mandible.
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