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http://dx.doi.org/10.5051/jpis.2013.43.5.209

Changes in the fractal dimension of peri-implant trabecular bone after loading: a retrospective study  

Mu, Teh-Jing (Department of Periodontology, Gangnam Severance Dental Hospital, Yonsei University College of Dentistry)
Lee, Dong-Won (Department of Periodontology, Gangnam Severance Dental Hospital, Yonsei University College of Dentistry)
Park, Kwang-Ho (Department of Oral and Maxillofacial Surgery, Gangnam Severance Dental Hospital, Yonsei University College of Dentistry)
Moon, Ik-Sang (Department of Periodontology, Gangnam Severance Dental Hospital, Yonsei University College of Dentistry)
Publication Information
Journal of Periodontal and Implant Science / v.43, no.5, 2013 , pp. 209-214 More about this Journal
Abstract
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 ($1.4213{\pm}0.0525$) increased significantly to $1.4329{\pm}0.0479$ 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.
Keywords
Bone remodeling; Dental implants; Fractals;
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