Association between bruxism and mandibular trabecular bone microarchitecture: A fractal dimension analysis using panoramic radiographs.

IF 5.4 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Cranio-The Journal of Craniomandibular & Sleep Practice Pub Date : 2026-09-22 DOI:10.1080/08869634.2026.2735940

Aslıhan Akbulut, Ayşen Gürsoy, Mithat Terzi, Fatma Uçan Yarkaç, Burak Karip

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引用次数: 0

Abstract

Objective: To evaluate the association between bruxism and mandibular trabecular bone microarchitecture using fractal dimension (FD) analysis and determine whether this association persists after adjustment for demographic confounders.

Methods: This retrospective study included 200 systemically healthy individuals (100 with bruxism, 100 controls). Bilateral FD measurements were obtained from condylar, gonial, and mandibular corpus regions on panoramic radiographs using ImageJ. Independent t-tests and age-adjusted ANCOVA were performed.

Results: Bruxism was associated with lower FD in the right gonial region in unadjusted analysis (p = .007), while males showed higher FD than females (p < .001). After adjustment for age and sex, bruxism was not significantly associated with FD in any region (all p > .05). A sex effect persisted in the right gonial region (p = .002, partial η² = 0.047). .

Conclusion: Demographic confounding may partly explain previously reported FD differences attributed to bruxism.

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磨牙症与下颌小梁骨微结构的关系：利用全景x线片进行分形维数分析。

目的：利用分形维数（FD）分析评估磨牙症与下颌小梁骨微结构之间的关系，并确定在调整人口混杂因素后这种关系是否仍然存在。方法：回顾性研究纳入200例全身健康个体（磨牙患者100例，对照组100例）。使用ImageJ在全景x线片上从髁、角和下颌骨区域获得双侧FD测量。进行独立t检验和年龄校正方差分析。结果：未经校正分析，磨牙与右侧生殖区域FD降低相关（p = .007），而男性FD高于女性（p < .001）。在调整年龄和性别后，磨牙与FD在任何地区均无显著相关性（p < 0.05）。右侧性腺区存在性别效应（p = 0.002，部分η2 = 0.047）。结论：人口统计学混淆可能部分解释了先前报道的由磨牙症引起的FD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.