Relationship between pre-treatment orthodontic case complexities and their treatment outcomes

IF 0.5 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Orthodontic Waves Pub Date : 2019-12-01 DOI:10.1016/j.odw.2019.10.003

K. Tantipanichkul, Supatchai Boonpratham, Nathaphon Tangjit, Suwannee Luppanapornlarp

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Abstract

Purpose

To determine whether pre-treatment orthodontic case complexities were associated with their treatment outcomes in each category of malocclusion.

Materials and methods

Two hundred orthodontic cases treated with edgewise appliances from university clinic that satisfied requirements for the certification were studied. The Discrepancy Index (DI) and the Objective Grading System (OGS) were calculated. The relationship between these measurements was evaluated using Pearson’s correlation coefficient.

Results

The mean DI score was 23.67 ± 10.30, and the mean OGS score was 19.92 ± 6.92. Statistically, there was only a weak and insignificant correlation between the DI and OGS (r = 0.055, p > 0.05). Buccolingual inclinations and interproximal contacts were components that had the highest and lowest mean OGS scores respectively.

Conclusion

Malocclusion complexity was not associated with orthodontic treatment outcomes. Cases which underwent two-phase treatment were found to have the most complex pre-treatment malocclusion and also the most unsatisfactory clinical outcomes. The OGS component with the highest discrepancies was buccolingual inclinations.

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正畸治疗前复杂性与治疗效果的关系

目的探讨正畸治疗前的复杂性与不同类型错牙合的治疗效果之间的关系。材料与方法对200例符合认证要求的大学门诊部使用楔形矫治器矫治的正畸患者进行研究。计算差异指数(DI)和客观分级系统(OGS)。使用Pearson相关系数评估这些测量值之间的关系。结果DI评分为23.67±10.30分，OGS评分为19.92±6.92分。在统计学上，DI与OGS的相关性较弱且不显著(r = 0.055, p > 0.05)。多语倾向和近端接触分别是平均OGS评分最高和最低的成分。结论错牙合复杂程度与正畸治疗效果无关。采用两期治疗的病例，其治疗前错牙合最复杂，临床效果也最不理想。差异最大的OGS成分是双语倾向。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Orthodontic Waves DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： Orthodontic Waves is the official publication of the Japanese Orthodontic Society. The aim of this journal is to foster the advancement of orthodontic research and practice. The journal seeks to publish original articles (i) definitive reports of wide interest to the orthodontic community, (ii) Case Reports and (iii) Short Communications. Research papers stand on the scientific basis of orthodontics. Clinical topics covered include all techniques and approaches to treatment planning. All submissions are subject to peer review.