后小角与骨骼性错颌畸形：意大利南部正畸前法庭的一项初步研究
Ponticulus posticus and skeletal malocclusion: A pilot study in a Southern Italian pre-orthodontic court.
作者信息
Lombardo Claudia, Roggio Federico, Caltabiano Rosario, Maugeri Grazia, D'Amico Grazia Agata, Lo Giudice Antonino, Musumeci Giuseppe, Loreto Carla
机构信息
Department of Biomedical and Biotechnological Sciences, Section of Anatomy, Histology and Movement Science, School of Medicine, University of Catania, Catania, Italy.
Department of Medical and Surgical Sciences and Advanced Technologies "G.F. Ingrassia" Anatomic Pathology, University of Catania, Catania, Italy.
出版信息
Open Med (Wars). 2024 Jul 15;19(1):20240965. doi: 10.1515/med-2024-0965. eCollection 2024.
PURPOSE
Ponticulus posticus (PP) is a bony protrusion located between the posterior portion of the superior articular process and the posterolateral portion of a posterior arch of the atlas vertebrae in the cervical spine. The aim of this study is to verify the presence of different types of PP in a Southern Italian pre-orthodontic cohort to understand its correlation with skeletal class and maturity.
METHODS
A case-control retrospective study was conducted, utilizing 212 latero-lateral telecranium radiographs to analyze skeletal maturity according to the cervical vertebral maturation method, the Angle's classification of malocclusion (I, II, or III), and the presence or absence of the PP, whether complete (c-PP) or partial (p-PP). A total of 212 lateral cephalograms were analyzed.
RESULTS
Of the 72 male patients, 67 (93%) exhibited PP, and 116 (88%) were PP. The chi-square value was 0.001, while Cramer's was 0.270, indicating a significant correlation between age groups and PP presence, and a very strong association overall. Out of the 41 complete PP cases, class I was notably more prevalent than classes II and III.
CONCLUSION
Orthodontists should carefully consider PP when assessing and treating individuals with or without skeletal discrepancies and dental anomalies.
目的
后小关节突（PP）是位于颈椎寰椎上关节突后部与后弓后外侧部分之间的一个骨性突起。本研究的目的是在意大利南部的一个正畸前队列中验证不同类型PP的存在情况，以了解其与骨骼类型和成熟度的相关性。
方法
进行了一项病例对照回顾性研究，利用212张头颅侧位X线片，根据颈椎成熟度方法、安氏错牙合分类（I类、II类或III类）以及PP的存在与否（完全型[c-PP]或部分型[p-PP]）来分析骨骼成熟度。总共分析了212张头颅侧位片。
结果
在72名男性患者中，67名（93%）有PP，116名（88%）有PP。卡方值为0.001，而克莱默值为0.270，表明年龄组与PP的存在之间存在显著相关性，总体关联非常强。在41例完全型PP病例中，I类明显比II类和III类更常见。
结论
正畸医生在评估和治疗有或无骨骼差异及牙齿异常的个体时，应仔细考虑PP。
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