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目的:评价上颌种植支抗结合自锁矫正器非拔牙矫治成人边缘病例的效果。方法:选取20例中度拥挤成人病例,分为G1和G2组。G1组10例,上颌种植支抗辅助自锁矫正器治疗,其中男6例,女4例,年龄18～26岁,平均22岁;G2组10例,单纯自锁矫正器治疗,男女各5例,年龄19～25岁,平均年龄23岁。分别测量分析治疗(或治疗第1阶段牙弓排齐整平拥挤解除)前后模型、头颅定位侧位片。采用SAS8.02软件包对模型测量数据及头影测量分析数据进行统计学处理。结果:2组患者治疗(或第1阶段治疗结束)后上颌磨牙区及前磨牙区宽度均扩大,组间差异无统计学意义;2组上颌第一磨牙倾斜角度改变不明显,组间差异无统计学意义。2组治疗(或第1阶段治疗)前后上切牙唇倾度、上切牙凸距均增大,但G1组较G2组更好地控制了上前牙的位置,组间差异有统计学意义。G1组上颌第一磨牙后移,G2组第一磨牙几乎没有移动,组间差异具有统计学意义。结论:上颌种植支抗结合自锁矫正器,可以通过扩大牙弓宽度,增加牙弓后段深度,非拔牙矫治中度拥挤病例。与单纯自锁矫正器治疗相比,更好地维持了上前牙的位置,保持良好的鼻唇关系、上唇突度和侧貌,较传统的口外弓及摆式矫治器具有一定的优势。
OBJECTIVE: To evaluate the effect of maxillary implant support combined with self-locking orthotics in the treatment of adult marginal cases. Methods: 20 cases of moderately crowded adults were selected and divided into G1 and G2 groups. G1 group of 10 cases, maxillary implant support assisted self-locking orthosis treatment, including 6 males and 4 females, aged 18 to 26 years, mean 22 years; G2 group of 10 cases, simple self-locking appliance treatment, male and female 5 Cases, aged 19 to 25 years old, mean age 23 years old. Were measured before and after the treatment of (or treatment of dental arch alignment lifted crowded release) before and after the model, the skull positioning lateral radiographs. SAS8.02 software package was used to analyze the model measurement data and cephalometric data for statistical analysis. Results: The width of maxillary molar area and premolar area in both groups were enlarged after treatment (or at the end of the first phase of treatment), with no significant difference between the two groups. The tilt angle of the maxillary first molar was not significantly changed in both groups, and there was no significant difference between the two groups Statistical significance. The incisors ’labial incisors’ incisors and their maxillary incisors increased in both groups before and after treatment (or stage 1), but the position of upper anterior teeth was better controlled in group G1 than in group G2 significance. In group G1, the maxillary first molars moved backwards and the first molar in group G2 hardly moved. The differences between groups were statistically significant. Conclusion: Maxillary implant support combined with self-locking orthotic can increase the width of the dental arch, increase the depth of the posterior arch, and moderately crowded cases without extraction. Compared with the simple self-locking orthosis, the position of the anterior teeth is better maintained, and the nasal and lip relationship, the superiority and topography of the upper lip are maintained, which has some advantages over the traditional oral bow and tilting appliance.