The Journal of the Korean dental association (대한치과의사협회지)

The Korean Dental Association (대한치과의사협회)
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A CASE REPORT OF SEVERE ANGLE'S CLASS III MALOCCLUSION

심한 Angle씨 III급 부정교합의 치험예

  • Sung, Jae-Hyun (Department of Orthodontics, School of Dentistry, Kyung Hee University)
  • 성재현 (경희대학교 치과대학 교정학교실)
  • Published : 1978.04.30
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Abstract

A girl aged 16 years and I month, had a severe Angle's class III malocclusion, characterized by a retarded and constricted maxilla, anterior and posterior crossbite. This patient underwent extraction of two lower Ist premolar. After extraction, author placed multibanded system in lower dental arch to change the long axis of anterior teeth and delivered removable appliance with Coffin spring in the upper dental arch to expand dental arch. After 13 months, anterior & posterior crossbite was corrected and this patient's profile was improved. Superimposition of pretreatment and posttreatment cephalograms upon the SN line registered at S showed backward downward rotation of the mandible and retrusion of lower lip.

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