固定式间隙保持器应用于乳磨牙早失的回顾性研究

›› 2021, Vol. 41 ›› Issue (6): 537-540.

固定式间隙保持器应用于乳磨牙早失的回顾性研究

康方芳¹,²,刘茜³,梅予锋³

1.
2. 南京医科大学附属口腔医院
3. 南京医科大学口腔医学院

收稿日期:2021-02-02 修回日期:2021-03-22 出版日期:2021-06-28 发布日期:2021-06-25
通讯作者: 梅予锋 E-mail:yfmei@njmu.edu.cn

Retrospective Study on the Application of Fixed space maintainer in Early Loss of Primary Molar

Received:2021-02-02 Revised:2021-03-22 Online:2021-06-28 Published:2021-06-25

摘要/Abstract

摘要： 目的　探讨固定式间隙保持器在乳磨牙早失中的临床应用效果。方法　回顾南京医科大学附属口腔医院儿童口腔科近3年因乳磨牙早失行固定式间隙管理的48例患者临床资料，对其预后进行相关性研究。结果　48例患者间隙保持器3、6个月保留率分别为77.73%，54.99%。上、下颌丝圈式间隙保持器3、6个月保留率均无统计学差异（P>0.05）。以第一恒磨牙为基牙的固定式间隙保持器共71例，其中带环丝圈式间隙保持器在以第一恒磨牙为基牙时，3个月保留率在牙根处于不同发育阶段的第一恒磨牙之间无统计学差异（P>0.05），而6个月保留率在第一恒磨牙牙根发育达根长的1/~/3时最高（P=0.07）。结论　以早萌的第一恒磨牙为基牙的带环丝圈式间隙保持器保留率较高，临床上间隙保持器存在多次脱落及损坏的情况，需予以改进。

关键词: 间隙保持器, 乳磨牙早失, 第一恒磨牙牙根发育, 回顾性研究

Abstract: Abstract Objective To analysis the clinical application effect of fixed space maintainer in the Affiliated Stomatological Hospital of Nanjing Medical University. Methods A retrospective analysis of the clinical data of 482 children with fixed space management due to premature loss of deciduous teeth in the Department of Pediatric Dentistry of our hospital in the past 3 years was conducted, and the short-term prognosis was studied. Results The 3 and 6-month retention rates of 482 cases of space maintainers were 77.73% and 54.99%, respectively. In 71 cases of fixed space maintainers with the first permanent molar as the abutment, there was no statistical difference in the 3-month retention rate at different developmental stages (P>0.05)..The 6-month retention rate was the highest when the root development reached 1/2 to 2/3 of the root length and there was a statistical difference (P=0.027). There was no significant difference in the retention rate of the upper and lower jaw with band loop maintainer at 3 months and 6 months (P>0.05). Conclusion The retention rate of the band loop space maintainer based on the early eruption of the first permanent molar as the abutment is higher. Clinically, the space maintainer has repeatedly fallen off and is damaged, and it needs to be improved.

Key words: space maintainer, premature loss of deciduous molar, root development of the first permanent molars, retrospective study

康方芳刘茜梅予锋. 固定式间隙保持器应用于乳磨牙早失的回顾性研究[J]. 口腔医学, 2021, 41(6): 537-540.

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