Assessing cervical spine and craniofacial morphology in Class II and Class III malocclusions: A geometric morphometric approach.

IF 2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Cranio-The Journal of Craniomandibular & Sleep Practice Pub Date : 2024-07-01 Epub Date: 2021-10-08 DOI:10.1080/08869634.2021.1987040

Camilo Sandoval, Alejandro Díaz, Germán Manríquez

引用次数: 0

Abstract

To compare craniofacial and cervical morphology between skeletal Classes II and III applying Geometric Morphometric Methods (GMM). Twenty-six cervical and craniofacial landmarks of 40 Class II and 39 Class III individuals were digitalized on lateral cephalograms. Procrustes ANOVA, generalized Procrustes, principal component analyses, and thin-plate spline function were applied to assess the pattern of shape variation of craniofacial structure and the cervical spine in relation to skeletal classes. Compared with Class III, Class II individuals presented a maxillary protrusion, mandibular retrusion, shorter mandibular corpus, posterior mandibular ramus rotation, anterior cranial base rotation, and a smaller centroid size. Furthermore, a forward and smaller cervical spine were observed. With GMM, the shape and size differences between skeletal classes can be analyzed visually and numerically.

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评估 II 类和 III 类畸形的颈椎和颅面形态：几何形态计量学方法。

应用几何形态测量法（GMM）比较骨骼等级 II 和 III 之间的颅面和颈部形态。对 40 名 II 级和 39 名 III 级个体的 26 个颈椎和颅面地标进行数字化处理。应用普罗斯特方差分析、广义普罗斯特分析、主成分分析和薄板样条函数来评估颅面结构和颈椎的形状变化模式与骨骼等级的关系。与 III 类相比，II 类个体表现为上颌前突、下颌后缩、下颌骨较短、下颌嵴后旋转、颅底前旋转和较小的中心点尺寸。此外，还观察到颈椎前倾和变小。利用 GMM，可以直观地和数字地分析骨骼类别之间的形状和尺寸差异。

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

Cranio-The Journal of Craniomandibular & Sleep Practice DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

4.50

自引率

12.50%

发文量

审稿时长

>12 weeks

期刊介绍： CRANIO: The Journal of Craniomandibular & Sleep Practice is the oldest and largest journal in the world devoted to temporomandibular disorders, and now also includes articles on all aspects of sleep medicine. The Journal is multidisciplinary in its scope, with editorial board members from all areas of medicine and dentistry, including general dentists, oral surgeons, orthopaedists, radiologists, chiropractors, professors and behavioural scientists, physical therapists, acupuncturists, osteopathic and ear, nose and throat physicians. CRANIO publishes commendable works from outstanding researchers and clinicians in their respective fields. The multidisciplinary format allows individuals practicing with a TMD emphasis to stay abreast of related disciplines, as each issue presents multiple topics from overlapping areas of interest. CRANIO''s current readership (thousands) is comprised primarily of dentists; however, many physicians, physical therapists, chiropractors, osteopathic physicians and other related specialists subscribe and contribute to the Journal.