Twin-block矫治器矫治安氏Ⅱ1错he畸形的机制研究

›› 2019, Vol. 39 ›› Issue (12): 1082-1084.

Twin-block矫治器矫治安氏Ⅱ1错he畸形的机制研究

李娜君¹,马俊青²,赵春洋³,吴可⁴

1. 南京医科大学口腔疾病研究江苏省重点实验室，南京医科大学附属口腔医院正畸科
2. 江苏省口腔医院
3. 江苏省口腔医院正畸科
4. 南京医科大学附属口腔医院

收稿日期:2019-06-18 修回日期:2019-08-21 出版日期:2019-12-28 发布日期:2019-12-31
通讯作者: 马俊青 E-mail:majunq@163.com
基金资助:
国家自然科学基金;江苏高校优势学科建设工程资助项目

Study on the mechanism of Twin-block appliance in treatment of Class Ⅱ1

Received:2019-06-18 Revised:2019-08-21 Online:2019-12-28 Published:2019-12-31

摘要/Abstract

摘要： 目的通过锥体束CT研究Twin-block矫治器矫治安氏Ⅱ1错牙合畸形的上、下颌骨的改变,探讨Twin-block矫治器的矫治机制。方法选取31例生长发育期的安氏Ⅱ1患者，用Twin-block矫治器矫治，矫治前后拍摄锥形束CT测量、分析。结果 31例患者矫治后下颌升支长度（Co-Go）、下颌体长度(Pog-Co)都明显增加，有显著性差异（P<0.01）；B-冠状面、B-水平面，距离均增加，有显著性差异（P<0.01），提示下颌向前向下生长。ANB减小，U1/SN减小、L1/MP增加，有显著差异(P<0.01)，上颌骨没有显著性变化。结论 Twin-block矫治器能够有效促进下颌骨的生长发育，矫治安氏Ⅱ1错牙合畸形。

关键词: 安氏Ⅱ1, 生长改良治疗, Twin-block矫治器, 锥形束CT

Abstract: ObjectiveThis study aims to evaluate the changes of the maxillary and mandible after treatment of Twin-block appliancein the Angleclass II division 1 patients by cone-beam CT and export the treatment mechanism of Twin-block appliance . Methods Thirty oneAngleclass II division 1 patientsin the growth period were selected and treated with Twin-block appliance. Cone-beam CT were taken before and after treatment to measure and analysis.Results The length of the mandibular ascending branch（Co-Go）and the mandibular body(Pog-Co)in the 31 patients were significantly increased (P<0.01). The distance of B-coronal plane and the B-water plane increased and were significantlydifferent(P < 0.01), suggesting that the growth of the mandible is forward and downward. There was a significant difference in the decrease of ANB, U1/SN and the increase of L1/MP(P<0.01).There was no significant change in the maxillary.ConclusionTwin-Block appliance can effectively promote the growth and development of the mandible and correct the Angleclass II division 1 malocclusion.

Key words: class II division 1 malocclusion, Growth modification treatment , Twin-block appliance , cone-bean CT

中图分类号:

R783.5

李娜君马俊青赵春洋吴可. Twin-block矫治器矫治安氏Ⅱ1错he畸形的机制研究[J]. , 2019, 39(12): 1082-1084.

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