J Periodontal Implant Sci.  2013 Oct;43(5):209-214. 10.5051/jpis.2013.43.5.209.

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

• Mu TJ
• Lee DW
• Park KH
• Moon IS

• KMID: 2212028
• DOI: http://doi.org/10.5051/jpis.2013.43.5.209

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+/-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.

Keyword

Bone remodeling; Dental implants; Fractals

MeSH Terms

Bone Remodeling
Dental Implants
Fractals*
Prostheses and Implants
Retrospective Studies*
Dental Implants

Figure

• 

  Figure 1 Regions of interest were selected on radiographs taken immediately after prosthesis delivery (A) and 1 year after loading (B).

• 

  Figure 2 Change in fractal dimension.

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