下颌前磨牙正畸拔除对使用固定矫治器治疗后第三磨牙成角的影响 :横断面研究。

IF 1.3 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie Pub Date : 2024-11-01 Epub Date: 2023-03-31 DOI:10.1007/s00056-023-00465-3
Tamara Di Giovanni, Theodosia Vogiatzi, Vasiliki Koretsi, Tanya Walsh, Nick Silikas, Spyridon N Papageorgiou
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引用次数: 0

摘要

目的:涉及前磨牙拔除的正畸治疗可能会改善下颌第三磨牙的角度,而下颌第三磨牙是最常受到影响的牙齿。本研究分析了在正畸治疗期间拔除第一/第二下前磨牙对下颌第三磨牙角度的影响:共有 120 名患者接受了非拔牙治疗(40 人)、第一下前磨牙拔牙治疗(40 人)或第二下前磨牙拔牙治疗(40 人)。根据治疗后的正侧位图评估下第三磨牙相对于邻牙的牙间角及其发育阶段。组间差异以 0.05 的显著性水平进行统计学评估:在平均治疗时间为 2.9 年后,对 120 名患者(51% 为女性)的正位像进行了评估,这些患者脱钩时的中位年龄为 15.2 岁。右侧(平均 = 24.4°,标准差 [SD] 13.6°)和左侧(平均 = 23.6°,标准差 14.1°)下第三磨牙的平均成角没有差异(P > 0.05)。在未拔牙组和拔牙组之间,右侧(P = 0.44)和左侧(P = 0.22)下第三磨牙的角度没有差异。同样,比较右侧(P = 0.26)或左侧(P = 0.10)第一和第二前磨牙时也未发现差异。前磨牙拔除与右侧第三磨牙牙根发育阶段提前有关(几率比7.1;95%置信区间1.1-48.1;P = 0.04),第一或第二前磨牙拔除之间没有差异(P = 0.10):结论:拔除前磨牙的正畸治疗可能与下第三磨牙牙根发育的小幅加速有关,但与成角无关。
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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Effect of orthodontic extraction of mandibular premolars on third molar angulation after treatment with fixed appliances : A cross-sectional study.

Purpose: Orthodontic treatment involving premolar extractions might improve the angulation of lower third molars, which are the teeth most often impacted. This study analyzes the impact of first/second lower premolar extraction during orthodontic therapy on the angulation of mandibular third molars.

Methods: A total of 120 patients treated non-extraction (n = 40), with extraction of first (n = 40), or second lower premolars (n = 40) were included. The mesiodistal angulation of lower third molars relative to the adjacent tooth and their developmental stage were evaluated from posttreatment orthopantomograms. Between-group differences were statistically evaluated at a significance level of 0.05.

Results: The orthopantomograms of 120 patients (51% female) with a median age of 15.2 years at the time of debonding were evaluated after a mean treatment duration time of 2.9 years. No difference (P > 0.05) was seen between the average angulation of the lower third molars of the right (mean = 24.4°, standard deviation [SD] 13.6°) and the left side (mean = 23.6°, SD 14.1°). No differences in the angulation of the lower third molar were found between the non-extraction and extraction groups for the right (P = 0.44) or the left side (P = 0.22). Likewise, no differences were found when comparing the first and second premolars for the right (P = 0.26) or the left side (P = 0.10). Premolar extraction was associated with an advanced root development stage of the right third molar (odds ratio 7.1; 95% confidence interval 1.1-48.1; P = 0.04), with no differences between extraction of the first or second premolar (P = 0.10).

Conclusion: Orthodontic treatment involving premolars extractions might be associated with a small acceleration in root development, but not with the angulation, of lower third molars.

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来源期刊
CiteScore
3.90
自引率
0.00%
发文量
64
审稿时长
>12 weeks
期刊介绍: The Journal of Orofacial Orthopedics provides orthodontists and dentists who are also actively interested in orthodontics, whether in university clinics or private practice, with highly authoritative and up-to-date information based on experimental and clinical research. The journal is one of the leading publications for the promulgation of the results of original work both in the areas of scientific and clinical orthodontics and related areas. All articles undergo peer review before publication. The German Society of Orthodontics (DGKFO) also publishes in the journal important communications, statements and announcements.
期刊最新文献
The effects of professional expertise on perceptions of treatment need in patients with class II division 1 malocclusion: a comparison between orthodontists, general dentists, and lay people in Germany. Mitteilungen der DGKFO. Effect of orthodontic extraction of mandibular premolars on third molar angulation after treatment with fixed appliances : A cross-sectional study. Long-term effects of orthodontic interceptive expansion treatment : A retrospective study. Scanning electron microscopy evaluation of enamel surfaces using different air-polishing powders in the orthodontic setting: an in vitro study.
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