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目的研究摇椅弓配合种植钉技术矫治前牙开的效果,探讨该技术矫治开的机制和临床要点。方法选择18例青少年前牙开患者,应用摇椅弓配合后牙区种植钉及前牙段垂直牵引进行矫治,分析矫治前、后的X线头颅侧位片变化。结果矫治后上下磨牙直立并略压低,上、下颌切牙伸长且上切牙内收,平面平整,前牙覆覆盖正常,上下唇略内收。结论摇椅弓配合种植钉技术能有效矫治青少年牙性前牙开,该技术矫治机理与MEAW技术相似,对轻度拥挤病例可以推磨牙向后并内收前牙。
Objective To study the effect of rocking-chair combined with implant nail technique on anterior teeth incision and discuss the mechanism and clinical points of this technique. Methods 18 cases of adolescent anterior incisors were selected and treated by rocking-bow combined with implanting screws in the posterior teeth and vertical traction in the anterior segment. The changes of X-ray cephalograms before and after correction were analyzed. Results After orthodontic treatment, the upper and lower molars were upright and slightly depressed. The upper and lower incisors were elongated and the upper incisors were adducted. The flat surface was smooth. The anterior teeth covered with plaster were normal and the upper and lower lips were slightly adducted. Conclusion The rocking-chair combined with implant nailing technique can effectively treat adolescent anterior teeth. The correction mechanism of this technique is similar to that of MEAW technique. For mild crowding cases, the anterior teeth can be pushed back and adduced.