不同咬合力水平个体的面部和牙弓形状:使用几何形态计量学进行的试点研究。

IF 1.3 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie Pub Date : 2024-10-28 DOI:10.1007/s00056-024-00553-y
Ana Nocera Quezada, María Jesús Muñoz, Ellen Schulz-Kornas, Maximilian Bemmann, Kornelius Kupczik, Oliver Schierz, Viviana Toro-Ibacache
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引用次数: 0

摘要

目的:这项试验性研究旨在使用几何形态计量学评估咬合力变化与牙弓和脸型之间的关系。几何形态计量学是一种先进的统计分析方法,可根据结构各部分的空间关系对结构进行详细的形状分析:样本包括 16 名德国成年男性和女性。方法:样本由 16 名德国成年男性和女性组成。每个人在四个位置记录最大咬合力:最大夹角、突出、向右侧和向左侧侧突。通过三维面部照片和牙石模型的三维扫描,获得了面部和三维(3D)牙科重建结果。共放置了 51 个地标。通过主成分分析评估了总体形状变化。进行偏最小二乘法分析以评估咬合力、面部形状和牙齿形状之间的协变关系:结论:我们的研究结果表明,咬合力、面部形状和牙齿形状之间的关系较弱:我们的研究结果表明,咬合力、牙弓和脸型之间的关系较弱。考虑到之前在这一领域的研究,我们认为西方城市人口特有的低咀嚼负荷可能是造成这种情况的原因。因此,进一步的研究应在考虑效应大小、饮食的机械特性和其他相关变量的基础上解决这一问题。
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Facial and dental arch shape in individuals with different bite force levels : A pilot study using geometric morphometrics.

Purpose: This pilot study aimed to assess the relationship between bite force variation and dental arch and facial shape using geometric morphometrics, an advanced method of statistical analysis that provides a detailed shape analysis of a structure considering the spatial relationship of its parts.

Methods: The sample consisted of 16 German adult men and women. For each individual, maximum bite force was recorded in four positions: maximum intercuspation, protrusion, laterotrusion to the right and to the left. Facial and three-dimensional (3D) dental reconstructions were obtained from 3D facial photographs and 3D scans of dental stone models. A total of 51 landmarks were placed. General shape variation was assessed by principal component analysis. Partial least squares analyses were performed to evaluate the covariation between bite force, facial shape, and dental shape.

Results: There was no clear pattern or statistically significant covariation between our variables.

Conclusions: Our results suggest a weak relationship between bite force, dental arch, and facial shape. Considering previous work in this field, we propose that low masticatory loads, characteristic in Western urban populations, may explain this. Further studies should, therefore, address this issue, taking into account effect size, the mechanical properties of the diet, and other relevant variables.

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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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