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KMID : 0363020130430050209
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Journal of Korean Academy of Periodontology
2013 Volume.43 No. 5 p.209 ~ p.214
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Changes in the fractal dimension of peri-implant trabecular bone after loading: a retrospective study
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Mu Teh-Jing
Lee Dong-Won
Park Kwang-Ho
Moon Ik-Sang
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Abstract
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Purpose: To assess bony trabecular changes potentially caused by loading stress around dental implants using fractal dimension analysis.
Methods: Fractal dimensions were measured in 48 subjects by comparing radiographs taken immediately after prosthesis delivery with those taken 1 year after functional loading. Regions of interest were isolated, and fractal analysis was performed using the box-counting method with Image J 1.42 software. Wilcoxon signed-rank test was used to analyze the difference in fractal dimension before and after implant loading.
Results: The mean fractal dimension before loading (1.4213±0.0525) increased significantly to 1.4329±0.0479 at 12 months after loading (P<0.05).
Conclusions: Fractal dimension analysis might be helpful in detecting changes in peri-implant alveolar trabecular bone patterns in clinical situations.
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KEYWORD
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Bone remodeling , Dental implants , Fractals
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