垂直方向支抗控制与行PASS矫治技术中的上颌前突病儿童颌平面角变化、颏部形态的关系

冯哲; 孙立婷; 马涛; 元子路; 田炳欣

doi:10.13898/j.cnki.issn.1000-2200.2022.11.008

垂直方向支抗控制与行PASS矫治技术中的上颌前突病儿童颌平面角变化、颏部形态的关系

Effect of the vertical holding appliance combined with PASS correction technique on the change of jaw plane angle and chin morphology in children with maxillary protrusion

摘要

摘要:
目的探讨采用垂直方向支抗控制（VHA）与行生理性支抗（PASS）矫治技术治疗儿童上颌前突病，对其颌平面角变化、颏部形态的影响情况。
方法选取76例上颌前突儿童为研究对象，将所有患儿根据随机数字表法分为VHA组和未行VHA组，2组患儿均采用PASS矫治术进行矫治，VAH组在此基础上进行垂直方向的支抗控制。
结果VHA支抗对于上中切牙的唇向前突有明显改善（P < 0.01），支抗控制联合VHA对于牙齿矫形后牙齿在垂直方向上的生长有较好控制（P < 0.05~P < 0.01），从使病人下颌骨在逆时针上前上方旋转，出现治疗后下颌骨向前旋转，治疗前后差异具有统计学意义（P < 0.05~P < 0.01）。
结论对于小儿上颌前突的治疗，特别对于比较困难的矫治病例，往往需要使用各种不同的治疗措施使支抗得到加强，因此能够有简单高效的增强支抗的方式（如垂直方向支抗控制）尤为重要，能够使治疗效果得到提高，使病人满意。

Abstract:
ObjectiveTo investigate the effects of vertical holding appliance(VHA) combined with physiological anchorage spee's wire system correction technique on the change of jaw plane angle and chin morphology in children with maxillary protrusion.
MethodsSeventy-six children with maxillary protrusion were divided into the VHA group and non-VHA group according to the random number table method.Two groups were treated with PASS correction, and the VAH group was additionally treated with vertical holding appliance.
ResultsThe VHA anchorage significantly improved the lip protuberance of the upper central incisor(P < 0.01).The holding appliance combined with VHA had better control on the vertical growth of teeth after orthodontic treatment(P < 0.05 to P < 0.01), could make the patient's mandible rotate from the front to the top counter clockwise to make mandible rotate forward, and the difference of which between before and after treatment was statistically signfiicant(P < 0.05 to P < 0.01).
ConclusionsFor the treatment of pediatric maxillary protrusion, especially for the more difficult cases of correction, and it is often necessary to use a variety of treatment measures to strengthen the anchorage.It is particularly important to have a simple and efficient way to enhance the anchorage(such as vertical holding appliance), which can improve the therapeutic effect, and make the patients satisfied.

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