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目的:将舌侧矫治器进行改良,以达到简化临床操作提高治疗前牙反疗效的目的。方法:制作联冠垫作为固定垫,磨牙舌面管和前磨牙托槽埋于垫中与联冠垫合二为一,成为垫式舌侧矫治器。选择假性前牙反病人30例,统计病人主动治疗时间和反解除时间,治疗前后摄头颅侧位定位片进行头影测量分析,并对软硬组织变化情况进行配对t检验。结果:30例病人治疗后磨牙关系中性,前牙覆覆盖正常,牙列整齐,反解除时间2~5个月,平均3.13个月。X线头影测量数据显示上下颌骨和上下前牙有一定的改变。结论:垫式舌侧矫治器矫治假性前牙反效果良好,并缩短了椅旁操作时间。
OBJECTIVE: To improve the lingual appliance so as to simplify the clinical operation and improve the efficacy of treating anterior crossbite. Methods: Make a crown pad as a fixed pad, molars tongue tube and premolar brackets buried pad in conjunction with the crown pad into one, a pad tongue appliance. 30 cases of pseudo-anterior tarsal prosthesis were selected, the time of patients’ active treatment and the time of anti-tonic withdrawal were counted, and cephalometric images of cephalometric images were taken before and after treatment. Paired t-tests were performed on changes of soft and hard tissues. Results: The relationship between molars was neutral in 30 patients, the coverage of anterior teeth was normal, the dentition was neat and the antiexamination time was 2 to 5 months (average 3.13 months). X-cephalometry data show the mandible and upper and lower anterior teeth have some changes. Conclusion: pad tongue appliance is effective in correcting false ossification of anterior teeth and shortens chair operating time.