CAJ | 학술논문

目的比较后牙双斜面导板矫治器(twin inclined plane device,TIPD)和面弓(Facemask,FM)治疗生长期骨性Ⅲ类错(牙合)的疗效.方法选择11岁3个月的孪生兄弟作为研究对象.1例应用TIPD治疗,斜面的高度以能打开前牙咬合锁结为准,矫治器全天戴用.另1例用FM治疗,牵引力为600g/侧,告之每天戴12 h以上.两人在治疗前中后均拍摄头颅侧位片.结果经TIPD和FM治疗后病例均表现出SNA角增加和SNB角减小,但TIPD病例以SNB角减小为主,而FM则以SNA角的增加为主.结论 TIPD和FM均能有效治疗生长期骨性Ⅲ类错(牙合).但TIPD适用于下颌发育过度型,而FM则适用于上颌发育不足型.
목적 비교후아쌍사면도판교치기(twin inclined plane device,TIPD)화면궁(Facemask,FM)치료생장기골성Ⅲ류착(아합)적료효.방법 선택11세3개월적련생형제작위연구대상.1례응용TIPD치료,사면적고도이능타개전아교합쇄결위준,교치기전천대용.령1례용FM치료,견인력위600g/측,고지매천대12 h이상.량인재치료전중후균박섭두로측위편.결과 경TIPD화FM치료후병례균표현출SNA각증가화SNB각감소,단TIPD병례이SNB각감소위주,이FM칙이SNA각적증가위주.결론 TIPD화FM균능유효치료생장기골성Ⅲ류착(아합).단TIPD괄용우하합발육과도형,이FM칙괄용우상합발육불족형.
Objective To compare the effects of the Twin Inclined Plane Device (TIPD) and the Facemask (FM) in treating skeletal Class Ⅲ malocclusions.Methods 11-year-3 month old Twin brothers were selected.TIPD were used in one patient,the height of the inclined plane was determined by relieving reverse cross-bite.The appliance was fitted in oral day and night.FM was used in the other patient with a total force of 600 g each side.The patient was instructed to wear the appliance 12 hours a day.Cephalograms were taken at the beginning,in the middle and at the end of the treatment.Results The increase in SNA angle and the decrease in SNB angle were observed in the two cases.On stage Ⅰ treatment,the increased value of SNA was more obvious in FM than that in TIPD.However,the decreased value of SNB was more obvious in TIPD.Conclusions Both TIPD and FM were effective in treatment of the subjects with skeletal Class Ⅲ malocclusions.TIPD was more efficient in the treatment of skeletal Class Ⅲ malocclusions with overdeveloped mandible,and FM was more suitable in the treatment of skeletal Class Ⅲ malocclusions with underdeveloped maxilla.