심한 크라우딩과 안면 비대칭을 동반한 골격성 III급 환자에서 Maxillary Skeletal Expander를 다각적으로 이용한 비발치 절충 치험례

Non-Extraction Orthodontic Camouflage Treatment Using Novel Maxillary Skeletal Expander Protocol for Skeletal Class III Patient with Severe Crowding and Facial Asymmetry

This case report describes a case in skeletal Class III malocclusion with asymmetry, maxillary skeletal expander (MSE) can be a compromised treatment option that successfully improves the occlusion. A 14-year-old female patient with facial asymmetry visited our orthodontic department, exhibiting left displacement of the mandible, severe crowding of the maxillary arch, shallow overjet and maxillary transverse deficiency. At the beginning of treatment, MSE was installed to expand maxillary transverse width. For unilateral expansion, the arm on the right side was removed after expansion to induce relapse. Afterwards, the rear arm was left without removing the MSE and was used for distal movement of the molars with the horseshoe application. In the mandible, the bi-dimensional wire and MEAW was applied. Appropriate use of MSE can achieve both unilateral expansion and distal movement of the molars.