ArticleOral radiology2025
How does the direction of region of interest selection affect the fractal dimension?
Article in Oral radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Anatomical Evaluation of Localized Mandibular Trabecular Texture Differences in Children with Hypodontia Using Radiographic Fractal Analysis.Diagnostics (Basel, Switzerland) · 2026Article
- A methodological framework for fractal analysis in monitoring periapical lesions after endodontic retreatment: a comprehensive parameter optimization study.BMC oral health · 2026Article
- Fractal Analysis of Mandibular Condyles in Patients with Temporomandibular Disorder.Journal of imaging informatics in medicine · 2026Article
- Influence of panoramic image acquisition and digitization methods on fractal dimension measurement in panoramic radiographs.Frontiers in oral health · 2026Article
- Evaluation of Fractal and Radiomorphometric Measurements of Mandibular Bone Structure in Pediatric Patients With Molar Incisor Hypomineralization.International journal of paediatric dentistry · 2025Article
- Review
- Evaluation of mandibular bone quality with respect to enzyme inducement potential of antiepileptic drugs via fractal analysis.BMC oral health · 2025Article
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3 authors.
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Abstract
objectivesIntroduction Fractal analysis (FA) is a computational method used to quantify the complex trabecular structure of bone. While FA has been widely applied in dentistry, there are challenges in standardizing the technique due to factors such as image resolution, region of interest (ROI) selection, and image processing. This study aimed to investigate the impact of the direction of ROI selection (DROIS) on fractal dimension (FD) calculations.
methodsPanoramic radiographs of 226 individuals aged 20-35 years were analyzed. ROIs were selected on the mandibular condyle, angular region, and mental region, and oriented at 0°, 22.5°, 45°, and 67.5° angles. FD was calculated using the box-counting method in ImageJ. The Friedman test and Wilcoxon signed-rank test were used for statistical analysis.
resultsThe FD values differed significantly between the angled ROI groups in all three regions (Friedman test, p < 0.0001). Pairwise comparisons showed significant differences in FD between most ROI orientations, except between 22.5° and 67.5° in the angular region.
conclusionsDROIS is an important factor that should be considered in FA studies to ensure reliable and reproducible FD values. Appropriate methodological choices can help account for the influence of DROIS on FD calculations..
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