改良肌激动器与Twin-block矫治器在骨性Ⅱ类下颌骨后缩畸形矫治中的疗效比较

doi:10.19439/j.sjos.2026.03.011

上海口腔医学 ›› 2026, Vol. 35 ›› Issue (3): 288-293.doi: 10.19439/j.sjos.2026.03.011

改良肌激动器与Twin-block矫治器在骨性Ⅱ类下颌骨后缩畸形矫治中的疗效比较

张亚军, 王红, 吴梦

中国人民解放军联勤保障部队第904医院口腔科,江苏无锡 214000

收稿日期:2025-08-19 修回日期:2025-11-04 发布日期:2026-07-02
通讯作者: 张亚军,E-mail：zhangyajun0518@163.com
作者简介:张亚军（1987—）,男,硕士研究生,主治医师
基金资助:
江苏省自然科学基金面上项目（BK20221302）

Comparison of the effects of modified muscle agonists and Twin-block orthodontic appliances in the treatment of skeletal ClassⅡmandibular retraction deformity

Zhang Yajun, Wang Hong, Wu Meng

Department of Stomatology, 904th Hospital, Joint Logistics Support Force, Chinese People's Liberation Army. Wuxi 214000, Jiangsu Province, China

Received:2025-08-19 Revised:2025-11-04 Published:2026-07-02

摘要/Abstract

摘要： 目的: 比较改良肌激动器与Twin-block矫治器在骨性Ⅱ类下颌骨后缩畸形矫治中的疗效。方法: 选择2021年3月—2024年6月中国人民解放军联勤保障部队第904医院收治的108例骨性Ⅱ类下颌骨后缩畸形患者,采用随机数字表法分为两组,每组各54例。对照组采用Twin-block矫治器,试验组采用改良肌激动器,比较两组矫治效果。结果: 试验组矫治效果显著优于对照组（P<0.05）。矫治后,试验组硬软组织指标、上气道指标显著优于对照组（P<0.05）。试验组微笑指数、颊旁间隙比显著低于对照组,微笑对称性显著高于对照组（P<0.05）。试验组并发症发生率、术后1年复发率显著低于对照组（P<0.05）。结论: 与Twin-block矫治器相比,改良肌激动器矫治骨性Ⅱ类下颌骨后缩畸形患者效果显著,可提高患者微笑美学指标,改善上气道狭窄,且并发症发生率较低。

关键词: 改良肌激动器, Twin-block矫治器, 骨性Ⅱ类下颌骨后缩畸形

Abstract: PURPOSE: To compare the effects of modified muscle agonist and Twin-block orthodontic appliance in the treatment of skeletal ClassⅡmandibular retraction deformity. METHODS: A total of 108 patients with skeletal ClassⅡ mandibular retraction deformity admitted to 904th Hospital, Joint Logistics Support Force, Chinese People's Liberation Army from March 2021 to June 2024 were selected and divided into 2 groups according to the random number table method, with 54 cases in each group. The control group was treated with Twin-block orthodontic appliance, while the experimental group was treated with modified muscle activator. The treatment effects were compared between the two groups. RESULTS: The corrective effect of the experimental group was significantly better than that of the control group (P<0.05). After treatment, the hard and soft tissue indicators and upper airway indicators in the experimental group were significantly better than those in the control group (P<0.05). The smile index and parabuccal space ratio of the experimental group were significantly lower than those of the control group, and the symmetry of the smile was significantly higher than that of the control group (P<0.05). The incidence of complications and the recurrence rate one year after treatment in the experimental group were significantly lower than those in the control group (P<0.05). CONCLUSIONS: Compared with Twin-block orthodontic appliance, modified muscle agonist has significant effect in correcting patients with skeletal ClassⅡmandibular retraction deformity. It can improve the smiling aesthetic index of patients, alleviates upper airway stenosis, and has a lower incidence of complications.

Key words: Modified muscle agonist, Twin-block orthodontic appliances, Skeletal Class Ⅱ mandibular retraction deformity

中图分类号:

R783.5

张亚军, 王红, 吴梦. 改良肌激动器与Twin-block矫治器在骨性Ⅱ类下颌骨后缩畸形矫治中的疗效比较[J]. 上海口腔医学, 2026, 35(3): 288-293.

Zhang Yajun, Wang Hong, Wu Meng. Comparison of the effects of modified muscle agonists and Twin-block orthodontic appliances in the treatment of skeletal ClassⅡmandibular retraction deformity[J]. Shanghai Journal of Stomatology, 2026, 35(3): 288-293.

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改良肌激动器与Twin-block矫治器在骨性Ⅱ类下颌骨后缩畸形矫治中的疗效比较

Comparison of the effects of modified muscle agonists and Twin-block orthodontic appliances in the treatment of skeletal ClassⅡmandibular retraction deformity

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