SGTB矫治器在AngleⅡ类1分类骨性错<inline-formula id="bbyxyxb-47-4-476-M1"><inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" href="bbyxyxb-47-4-476-M1.jpg"/></inline-formula>畸形矫治中的临床应用研究

张利; 田瑞雪; 张容秀; 谢小飞; 李建成

doi:10.13898/j.cnki.issn.1000-2200.2022.04.013

SGTB矫治器在AngleⅡ类1分类骨性错畸形矫治中的临床应用研究

Study on the clinical application of SGTB appliance in the correction of Angle class Ⅱ division 1 skeletal malocclusion

摘要

摘要:
目的通过X线头影测量，分析SGTB矫治器对生长发育高峰期AngleⅡ类1分类骨性错畸形病人进行矫治的临床效果。
方法选取生长发育高峰期AngleⅡ类1分类错畸形伴骨性下颌后缩的病例40例，随机分成2组，S组采用Ⅰ期SGTB矫治器导下颌向前联合Ⅱ期固定矫治；F组采用Ⅰ期固定矫治联合Ⅱ期Forsus矫治器导下颌向前。在治疗前、后拍摄X线头颅侧位片，利用Pancherz测量分析法进行分析，比较2组治疗前后的相关指标情况。
结果治疗前2组间病人的各指标测量数据比较差异均无统计学意义(P>0.05)。治疗后，F组L1-MP高于S组(P < 0.05)。与治疗前比较，2组病人治疗后SNB、B/OLP、Pg/OLP、Pg/OLP+Co/OLP、ii/OLP、mi/OLP均增大，ANB、is/OLP、U1-NSL、is/OLP-ii/OLP、ms/OLP-mi/OLP、is/OLP-A/OLP均减小，F组L1-MP增大，S组ii/OLP -Pg/OLP减少，差异均有统计学意义(P < 0.05~P < 0.01)；其余各指标治疗前后差异均无统计学意义(P>0.05)。在前牙覆盖的纠正中，S组牙性和骨性因素所占比分别为43%、57%, F组分别为56%、44%；在磨牙关系的纠正中，S组牙性和骨性因素所占比分别为39%、61%, F组分别为49%、51%，构成比差异均无统计学意义(P>0.05)。
结论SGTB矫治器对AngleⅡ类1分类骨性错畸形具有良好的矫治效果，且在下切牙唇倾的控制方面优于Forsus矫治器。

Abstract:
ObjectiveTo analyze the clinical effects of SGTB appliance in the correction of growth peak Angle class Ⅱ division 1 skeletal malocclusion using X-ray cephalometric measurement.
MethodsForty cases with Angle class Ⅱ division 1 malocclusion deformity complicated with bone retraction of mandible were randomly divided into the group S and group F.The group S and group F were treated with stage Ⅰ SGTB appliance combined with stage Ⅱ fixed mandible and stage Ⅰ fixed appliance combined with stage Ⅱ Forsus appliance, respectively.The lateral head X-ray was taken before and after treatment, the Pancherz measurement analysis was used for analysis, and the related indicators in two groups were compared between before and after treatment.
ResultsBefore treatment, there was no statistical significance in the measurement data of each index between the two groups(P>0.05).After treatment, the L1-MP in group F was higher than that in group S(P < 0.05).Compared with before treatment, the SNB, B/OLP, Pg/OLP, Pg/OLP+Co/OLP, ii/OLP and mi/OLP increased, and the ANB, is/OLP, U1-NSL, is/OLP-ii/OLP, ms/OLP-mi/OLP and is/OLP-A/OLP decreased in two groups after treatment(P < 0.05 to P < 0.01).Compared with before treatment, the L1-MP in group F increased, the ii/OLP-PG/OLP in group S decreased after treatment, and the differences of which were statistically significant(P < 0.05 to P < 0.01).There was no statistical significance in other indexes between before and after treatment(P>0.05).In the correction of anterior overlaying, the proportions of dental and osseous factors in group S was 43% and 57%, repectively.In group F, 56% and 44%, repectively, respectively.In the correction of molar relations, the proportions of dental and osseous factors in group S was 39% and 61%, respectively.In group F, 49% and 51%, respectively.There was no statistical significance in the constituent ratios of above indexes between the two groups(P>0.05).
ConclusionsThe SGTB appliance appliance has a good effect on the correction of Angle class Ⅱ division 1 skeletal malocclusion, and is better than Forsus appliance in the control of lip tilt of lower incisor teeth.

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