CAJ | 학술논문

目的：对比研究改良式上颌合垫矫治器和常规上颌合垫矫治器在阻断性矫治乳前牙反?的临床疗效，探讨早期阻断性矫治乳前牙反?的最佳矫治方法。方法选择该院50例乳前牙反?患者分为两组，每组各25例。改良组采用改良式上颌合垫矫治器治疗，对照组戴用常规上颌合垫矫治器进行矫治，摄X线头颅侧位片进行牙、颌骨硬组织及软组织侧貌测量分析；问卷调查患者适应期。结果两组患者矫治结束后，乳前牙反?解除，上牙唇倾度增加，软组织凹面型改善；且改良组的患者在下颌后退、下牙内收以及软组织侧貌改善更为显著。结论两种合垫矫治器均能阻断性矫治乳前牙反?。改良式矫治器同时具有机械和功能矫治的双重特点，可有效阻断错合畸形的进一步发展，并获得更为协调美观的软组织面型。
목적：대비연구개량식상합합점교치기화상규상합합점교치기재조단성교치유전아반?적림상료효，탐토조기조단성교치유전아반?적최가교치방법。방법선택해원50례유전아반?환자분위량조，매조각25례。개량조채용개량식상합합점교치기치료，대조조대용상규상합합점교치기진행교치，섭X선두로측위편진행아、합골경조직급연조직측모측량분석；문권조사환자괄응기。결과량조환자교치결속후，유전아반?해제，상아진경도증가，연조직요면형개선；차개량조적환자재하합후퇴、하아내수이급연조직측모개선경위현저。결론량충합점교치기균능조단성교치유전아반?。개량식교치기동시구유궤계화공능교치적쌍중특점，가유효조단착합기형적진일보발전，병획득경위협조미관적연조직면형。
Objective To compare difference of clinical effect of reformed interocclusal lip arch appliance and conventional moved maxillary bite plate appliance in the interceptive orthodontics in the treatment of deciduous anterior crossbite .To search an appro-priate interceptive orthodontics treatment of deciduous anterior crossbite .Methods 50 cases of deciduous anterior crossbite were randomly divided into 2 groups(25 cases in each group) .The improvement group underwent a modified appliance therapy ,and the control group were treated with conventional bite appliance ,then we compared the clinical efficacy of the two groups .Results All the cases with the deciduous anterior crossbite were cured .After treatment ,the maxillary anterior teeth and soft tissue profile of all the patients were improved .In the improvement group the changes of the mandible ,the mandibular anterior teeth ,and the concave profile improving have more significant efficiency than those in the control group .Conclusion Both kinds of appliance could cure the deciduous anterior crossbite .The reformed interocclusal lip arch appliance has both the mechanical and functional effects and be-fits in those overbite cases ,it can be an effective interceptive treatment of children with anterior crossbite .The modified appliance group can get more harmonized profile .