螺旋簧前方扩弓器矫治前段牙弓发育不足的效果评价

›› 2021, Vol. 41 ›› Issue (5): 430-434.

螺旋簧前方扩弓器矫治前段牙弓发育不足的效果评价

王华

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

收稿日期:2020-12-15 修回日期:2021-01-08 出版日期:2021-05-28 发布日期:2021-05-21
通讯作者: 王华 E-mail:huawang@njmu.edu.cn
基金资助:
国家自然科学基金

Clinical evaluation of maxillary bite plate combined with screw expander appliance correcting anterior crossbite

Received:2020-12-15 Revised:2021-01-08 Online:2021-05-28 Published:2021-05-21

摘要/Abstract

摘要： 目的评估螺旋簧前方扩弓器矫治前段牙弓发育不足的前牙反牙合患者的疗效及机制。方法选择乳牙期或替牙期早期上颌前段牙弓发育不足前牙反牙合患者20例，采用带螺旋扩大器的上颌牙合垫矫治器进行上颌前方扩弓矫治。治疗前后拍摄头颅侧位片并测量，进行符号秩和检验。结果经过约5个月的矫治，所有患者的前牙反牙合均得到纠正。治疗后SNA、SNPr、U1-NA、U1-PNS、Wits值及上颌牙弓长度均有显著增加（P<0.05）。结论螺旋簧前方扩弓器可以快速纠正乳牙期或替牙期前牙反牙合，显著增加上颌基骨长度及牙弓长度。

关键词: 螺旋簧前方扩弓器, 扩大牙弓, 牙弓长度, 前牙反牙合

Abstract: Objective To evaluate the effect of maxillary bite plate combined with screw expander appliance correcting anterior crossbite. Methods 20 cases of anterior crossbite caused by maxillary anterior arch hypoplasia in deciduous or mixed dentition were treated with maxillary bite plate with screw expander appliance. Computerized cephalometric analysis was carried out. Wilcoxon igned-rank test was performed. Results Anterior crossbite was corrected in all patients after 5 months’ treatment. SNA, SNPr, U1-NA, U1-PNS, the arch length and the Wits value were increased significantly (P <0.05). Conclusion Maxillary bite plate with screw expander appliance could correct anterior crossbite, promote maxillary base bone and increase dental arch effectively.

Key words: maxillary bite plate with screw expander appliance, arch expansion, arch length, anterior crossbite

中图分类号:

R783.5

王华. 螺旋簧前方扩弓器矫治前段牙弓发育不足的效果评价[J]. 口腔医学, 2021, 41(5): 430-434.

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