单颗下颌切牙先天缺失不同治疗模式的疗效研究

doi:10.13591/j.cnki.kqyx.2022.11.011

Abstract

Abstract: Objective To evaluate the curative effect of different orthodontic treatment Methods for single mandibular incisors with American Board of Orthodontics-Objective grading system (ABO-OGS) and PAR (peer assessment rating) index, and to explore whether there were differences among three methods. Methods Models and panoramic photos before and after treatment of 57 patients with congenital absence of single mandibular incisors in the Orthodontics Department of Xuzhou Central Hospital were selected. According to different treatment methods, they were divided into three groups:A, B and C. Group A had 19 cases of non-extraction treatment. 20 premolars were extracted in group B. In group C, 18 incisors were extracted. ABO-OGS index and PAR index were used to measure the model and panorama before and after treatment, and the results were statistically analyzed. Results Before treatment, the difference of ABO-OGS index between group B, group A and group C was statistically significant. After treatment, there was no significant difference in the total score of ABO-OGS index among the three groups, but there was significant difference in tooth arrangement between group A and group C. There was no significant difference between three groups before and after PAR index treatment. Conclusion According to the actual situation of patients, we should formulate appropriate personalized plan, select treatment method and strictly implement it during treatment. All three treatment Methods can achieve satisfactory results.

Key words: ABO-OGS index, PAR index, congenital missing tooth, curative effect evaluation

CLC Number:

R783.5

ZHANG Xueying, SHEN Mengyuan, CHEN Bin, MENG Jian. Study on the curative effect of different treatment modes for congenital absence of single mandibular incisor[J]. Stomatology, 2022, 42(11): 1015-1018.

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Study on the curative effect of different treatment modes for congenital absence of single mandibular incisor

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