CAJ | 학술논문

目的讨论前方牵引器和2×4矫治器对替牙期前牙反合的矫治前后头影测量分析的对比。方法 52例替牙期前牙反合病例，其中25例使用2×4固定矫治技术，27例采用前方牵引矫治器治疗；对这两组病例治疗前后X线头影测量指标进行对照分析。结果 2×4矫治器组可以通过牙的改变解除前牙反合；前方牵引矫治器组在前牙反合改变的同时，还有骨骼的改变。结论 2×4矫治器可有效矫治替牙期牙性和功能性反合，功能性矫治器适应骨性和混合性反合病例。
목적토론전방견인기화2×4교치기대체아기전아반합적교치전후두영측량분석적대비。방법 52례체아기전아반합병례，기중25례사용2×4고정교치기술，27례채용전방견인교치기치료；대저량조병례치료전후X선두영측량지표진행대조분석。결과 2×4교치기조가이통과아적개변해제전아반합；전방견인교치기조재전아반합개변적동시，환유골격적개변。결론 2×4교치기가유효교치체아기아성화공능성반합，공능성교치기괄응골성화혼합성반합병례。
Object: To compare difference of the effect mechanism and applicability of treating anterior cross-bite of mixed dentition by 2×4 appliance and anterior traction appliance. Method:27 cases with anterior cross-bite of mixed dentition treated by anterior traction appliance and 25 cases by 2×4 appliance Cephalometrics indices were studied to compare the dental and bony tissue changes Result: There were only dental changes in 2×4 appliance group while in anterior traction group .there were both dental .changes and bony tissue changes. Conclusion: Dental and functional Cross-bite should be treated by fixed appliance .while functional appliance.