피질골 절제술을 응용한 구치의 원심직립 이동
Corticotomy and the molar uprighting
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빠르며 정확하고 안전한 치아이동을 목표로 삼고 있는 교정치료에서 새로운 패러다임이라고 여겨지는 피질골 절제술과 견인 골형성술을 응용한 구치의 원심직립이동에 대하여 알아보았다. 일반적인 방법으로는 어렵거나 치료 기간이 길어질 것으로 판단되는 구치의 원심직립 이동을 피질골 절제술과 견인 골형성술을 응용하여 도모하였다. 각각의 원심직립 증례를 통해 피질골 절제술과 견인 골형성술의 적용 술식, 견인장치 등을 논하고 그 효과를 파악하였다. 빠른 치아이동과 이에 따른 교정치료 기간의 단축이 가능하고 통상의 교정치료로는 이동에 한계가 있었던 치아이동을 구치의 정출이나 고정원의 상실 없이 도모할 수 있었다.
Abstract
Tooth movement facilitated by corticotomy and distraction osteogenesis, a new paradigm in orthodontics, was discussed. Molar uprighting was thought to be either difficult or nearly impossible. In this study, a section of cortical bone, which may act as resistance to tooth movement in alveolar bone, was removed. Active bone deposition was also made possible in the tension side. This forms the main concept of tooth movement facilitated by corticotomy and distraction osteogenesis. Molars in two cases were uprighted at such a speedy rate as we could not imagine in conventional tooth movement, which lead to reduction of the total treatment period. And molar uprighting was possible without side effects, for example, supraversion of the tooth or anterior anchorage loss. These were the superior aspects to conventional orthodontics.
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