种植钉与口外弓治疗骨性Ⅱ类高角前突型错牙合畸形的垂直向效果比较研究

doi:10.13701/j.cnki.kqyxyj.2019.04.011

口腔医学研究 ›› 2019, Vol. 35 ›› Issue (4): 351-354.DOI: 10.13701/j.cnki.kqyxyj.2019.04.011

种植钉与口外弓治疗骨性Ⅱ类高角前突型错牙合畸形的垂直向效果比较研究

丁少华, 刘明海, 邹廷前^*

荆门市口腔医院湖北荆门 448000

收稿日期:2018-11-05 出版日期:2019-04-28 发布日期:2019-04-23
通讯作者: 邹廷前,电话:0724—2361619
作者简介:丁少华(1981~ ),男,湖北荆门人,硕士,副主任医师,主要从事口腔正畸的临床和科研工作。
基金资助:
荆门市科学技术局科技计划(编号:YFYB2017015)

Comparative Study on Vertical Effect between Miniscrew and Face-bow in Orthodontic Treatment of Hyperdivergent ClassⅡ Protrusion

DING Shao-hua, LIU Ming-hai , ZOU Ting-qian^*

Stomatological Hospital of Jingmen, Jingmen 448000, China

Received:2018-11-05 Online:2019-04-28 Published:2019-04-23

摘要/Abstract

摘要： 目的: 比较颧牙槽嵴区高位种植钉联合横腭杆与高位头帽口外弓联合横腭杆矫治骨性Ⅱ类高角前突型错牙合畸形的垂直向效果差异。方法: 20例骨性Ⅱ类高角前突型患者随机分为2组,每组10例,对照组采取高位头帽口外弓+横腭杆+直丝弓矫治技术,试验组采取颧牙槽嵴区高位种植钉+横腭杆+直丝弓矫治技术,2组均采取滑动法内收前牙关闭间隙,所有病例矫治前后拍摄头颅侧位片,通过测量矫治前后的头颅侧位片来分析2组患者牙齿和骨骼的垂直向参数变化。结果: 试验组矫治前后及2组间矫治效果比较在垂直向参数(SN-MP°、N-Me、N-SGn°、U6M-PP)测量上有统计学显著性差异,对照组所有参数和试验组UO-PP矫治前后比较没有统计学显著性差异,试验组上前牙平均压低0.4 mm,对照组上前牙平均伸长0.5 mm,但组间没有统计学显著性差异。结论: 颧牙槽嵴区高位种植钉联合横腭杆矫治骨性Ⅱ类高角前突型错牙合畸形能压低上颌磨牙,并适当压低上颌前牙,在垂直向骨面型上能起到更好的矫治效果。

关键词: 种植钉, 口外弓, 骨性Ⅱ类高角前突型

Abstract: Objective: To compare the vertical effect between infrazygomatic crest high planting miniscrew combined with horizontal palatal bar and high headgear face-bow combined with horizontal palatal bar in the treatment of hyperdivergent classⅡ protrusion. Methods: Twenty patients with hyperdivergent classⅡ protrusion were randomly divided into two groups with 10 cases in each group. The control group adopted high headgear face-bow + horizontal palatal bar + straight wire technology, and the experimental group adopted infrazygomatic crest high planting miniscrew + horizontal palatal bar + straight wire technology. Maxillary anterior teeth were retracted by sliding method to close the extraction spaces for two groups. Lateral cephalometric films were taken pre and post orthodontic treatments. Vertical parameters of teeth and skeleton were analyzed by measuring the cephalogram pre and post treatments. Results: Statistically significant differences were existed on vertical parameters (SN-MP°, N-Me, N-SGn°, U6M-PP) measurements between two groups or pre and post orthodontic treatments in experimental group. There was no statistically significant difference between all the parameters of the control group and UO-PP of the experimental group pre and post treatments, the anterior teeth were lowered by 0.4mm on average in the experimental group, reversely elongated by 0.5mm on average in the control group, but there was no significant difference between two groups. Conclusion: Infrazygomatic crest high planting miniscrew combined with palatal bar in the treatment of hyperdivergent classⅡ protrusion could depress the maxillary molars, as well as a little press down maxillary anterior teeth, which could gain better effect for vertical skeletal pattern.

Key words: Miniscrew, Face-bow, Hyperdivergent class Ⅱ protrusion

丁少华, 刘明海, 邹廷前. 种植钉与口外弓治疗骨性Ⅱ类高角前突型错牙合畸形的垂直向效果比较研究[J]. 口腔医学研究, 2019, 35(4): 351-354.

DING Shao-hua, LIU Ming-hai , ZOU Ting-qian. Comparative Study on Vertical Effect between Miniscrew and Face-bow in Orthodontic Treatment of Hyperdivergent ClassⅡ Protrusion[J]. Journal of Oral Science Research, 2019, 35(4): 351-354.

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种植钉与口外弓治疗骨性Ⅱ类高角前突型错牙合畸形的垂直向效果比较研究

Comparative Study on Vertical Effect between Miniscrew and Face-bow in Orthodontic Treatment of Hyperdivergent ClassⅡ Protrusion

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