Korkmaz Meltem Zihni, Altin Ahmet, Günaçar Dilara Nil, Köse Taha Emre
Recep Tayyip Erdogan University, Faculty of Dentistry, Department of Periodontology, Rize, Turkey.
İstanbul Kent University, Faculty of Dentistry, Department of Periodontology, İstanbul, Turkey.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2023 Mar;135(3):427-432. doi: 10.1016/j.oooo.2022.09.041. Epub 2022 Sep 30.
The aim was to perform fractal analysis (FA) to compare differences in trabecular microarchitecture in interdental and antegonial regions on panoramic radiographs in periodontally healthy patients and those with stage III/IV, grade C periodontitis, and to compare the effects of patient age and sex on FA results.
Clinical and radiographic records from 33 periodontally healthy individuals and 28 individuals with aggressive periodontitis were obtained from the faculty archives. Three regions of interest (ROIs) were chosen bilaterally from interdental bone around the mandibular first molar and canine and the antegonial region. The mean fractal dimension (FD) values of the ROIs were calculated. Significance of differences was established at P < .05.
FD values of all 3 ROIs in the periodontitis group were significantly lower than values in the control group (P ≤ .004). FD was not affected by patient age (P = .357) or sex (P = .216). There were no significant correlations between FD and age in either group (P ≥ .093). FD values differed significantly between sexes in only one ROI.
FA can effectively detect trabecular microarchitectural differences in patients with aggressive periodontitis compared to periodontally healthy individuals. This technique might be useful in predicting the susceptibility of patients to periodontal disease.
进行分形分析（FA），以比较牙周健康患者与III/IV期C级牙周炎患者全景X线片上牙间区域和角前区骨小梁微结构的差异，并比较患者年龄和性别对FA结果的影响。
从学院档案中获取33名牙周健康个体和28名侵袭性牙周炎患者的临床和影像学记录。从下颌第一磨牙和尖牙周围的牙间骨以及角前区双侧选取三个感兴趣区域（ROI）。计算ROI的平均分形维数（FD）值。差异显著性设定为P < 0.05。
牙周炎组所有3个ROI的FD值均显著低于对照组（P ≤ 0.004）。FD不受患者年龄（P = 0.357）或性别（P = 0.216）影响。两组中FD与年龄均无显著相关性（P ≥ 0.093）。仅在一个ROI中，FD值在性别之间存在显著差异。
与牙周健康个体相比，FA能有效检测侵袭性牙周炎患者的骨小梁微结构差异。该技术可能有助于预测患者患牙周病的易感性。
