Evaluation of the mandibular trabecular bone in patients with bruxism using fractal analysis

Abstract

Objective

The aims of this study were (1) to investigate the effect of bruxism on the fractal dimension (FD) of the mandibular trabecular bone through digital panoramic radiographs, and (2) to evaluate the effectiveness of fractal analysis as a diagnostic test for bruxism.

Methods

One hundred and six bruxer and 106 non-bruxer patients were included in the study. Three bilateral regions of interest (ROI) were selected: ROI-1, the mandibular condyle; ROI-2, the mandibular angle; ROI-3, the-area between the apical regions of the mandibular second premolar and the first molar teeth. FD values for the bruxer and non-bruxer groups were compared for each ROI.

Results

Only the FD measurements for the right mandibular condyle (ROI-1) showed a statistically significant difference (p = 0.041) between the bruxer and non-bruxer individuals. FD values measured in the bruxers (1.40 ± 0.09) were lower than in the non-bruxers (1.42 ± 0.08).

Conclusion

Fractal analysis may be a useful method for discerning trabecular differences in the condylar areas of bruxer individuals. In future studies, the unilateral mastication habits, the characteristics of dental wear, and the occlusal bite forces of individuals should be documented.

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Gulec, M., Tassoker, M., Ozcan, S. et al. Evaluation of the mandibular trabecular bone in patients with bruxism using fractal analysis. Oral Radiol 37, 36–45 (2021). https://doi.org/10.1007/s11282-020-00422-5

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Keywords

  • Bruxism
  • Fractal analysis
  • Mandible
  • Trabecular bone