Condylar Resorption : Case Reports and Review

하악과두 흡수(Condylar Resorption)에 대한 고찰

  • Lee, Kyung-Eun (Department of Oral Medicine, Institution of Oral Bioscience, College of Dentistry Chonbuk National University)
  • 이경은 (전북대학교 치과대학 구강내과학 교실)
  • Published : 2007.03.30

Abstract

Condylar resroption, or condylysis can be defined as progressive alteration of condylar shape and decrease in mass. Although the cause is unknown, condylar resorption has been assocated with rheumatoid arthritis, systemic sclerosis, systemic erythematous, steroid usage, orthodontic treatment and orthognathic surgery. In most case, however, there is no identifiable precipitating event. Hence the term is idiopathic condylar resorption. With condylar resorption, the bone loss is resulting in a loss of posterior support in the involved condyle and the mandible can then shift. As a result, the most patients exhibit occlusal change, openbite, retrognathism, and a decrease in posterior face height. This article reports cases of condylar resorption. And the author will review factors capable of changes of condyle, pathogensis and management of conylar resorption.

하악과두 흡수(condylar resorption)는 하악과두 용해라고도 하며 과두형태변화와 크기 감소가 점진적으로 또는 갑작스럽게 일어나는 것으로 정의할 수 있다. 원인은 잘 알려져 있지 않지만 류머티스 관절염, 전신성 홍반성 낭창, 스테로이드 복용(usage), 교정치료, 악교정 수술후 일어나는 과두흡수(secondary condylar resorption)와 특별한 원인 없이 일어나는 특발성 과두흡수(primary condylar resortion)로 나눌 수 있다. 이러한 하악과두 흡수가 발생하는 경우에는 골소실로 인해 이환측 과두에서 후방 지지의 갑작스런 상실이 초래된다. 이로인해 하악이 변위될수 있으며 교합변화, 개방교합과 같은 교합변화와 하악의 후퇴가 나타날 수 있다. 이에 저자는 하악과두 흡수가 일어난 증례를 보고하며 과두흡수와 관련된 인자, 병리기전, 환자관리에 대해 고찰하고자 한다.

Keywords

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