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

다국어 초록 (Multilingual 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.

참고문헌 (Reference)

1 정연화, "프랙탈 분석을 통한 임플란트 주변골 평가" 대한구강악안면방사선학회 35 (35): 121-125, 2005

2 Stanford CM, "Toward an understanding of implant occlusion and strain adaptive bone modeling and remodeling" 81 : 553-561, 1999

3 Wilding RJ, "The use of fractal analysis to reveal remodelling in human alveolar bone following the placement of dental implants" 40 : 61-72, 1995

4 Kinney JH, "The relationship between three-dimensional connectivity and the elastic properties of trabecular bone" 13 : 839-845, 1998

5 Mombelli A, "The microbiota associated with successful or failing osseointegrated titanium implants" 2 : 145-151, 1987

6 Chen SK, "The effects of projection geometry and trabecular texture on estimated fractal dimensions in two alveolar bone models" 27 : 270-274, 1998

7 Jolley L, "Technical factors in fractal analysis of periapical radiographs" 35 : 393-397, 2006

8 Garetto LP, "Remodeling dynamics of bone supporting rigidly fixed titanium implants : a histomorphometric comparison in four species including humans" 4 : 235-243, 1995

9 Lang NP, "Radiographs in periodontics" 4 : 16-28, 1977

10 Roberts WE, "Osseous adaptation to continuous loading of rigid endosseous implants" 86 : 95-111, 1984

11 Caligiuri P, "Multifractal radiographic analysis of osteoporosis" 21 : 503-508, 1994

12 Hoshaw SJ, "Mechanical loading of Branemark implants affects interfacial bone modeling and remodeling" 9 : 345-360, 1994

13 Holmes DC, "Influence of bone quality on stress distribution for endosseous implants" 23 : 104-111, 1997

14 Piattelli A, "Immediate loading of titanium plasma-sprayed implants : an histologic analysis in monkeys" 69 : 321-327, 1998

15 Majumdar S, "High-resolution magnetic resonance imaging : three-dimensional trabecular bone architecture and biomechanical properties" 22 : 445-454, 1998

16 Buckland-Wright JC, "Fractal signature analysis of macroradiographs measures trabecular organization in lumbar vertebrae of postmenopausal women" 54 : 106-112, 1994

17 Fazzalari NL, "Fractal properties of cancellous bone of the iliac crest in vertebral crush fracture" 23 : 53-57, 1998

18 Geraets WG, "Fractal properties of bone" 29 : 144-153, 2000

19 Bollen AM, "Fractal dimension on dental radiographs" 30 : 270-275, 2001

20 Southard TE, "Fractal dimension in radiographic analysis of alveolar process bone" 82 : 569-576, 1996

21 Updike SX, "Fractal analysis of dental radiographs to detect periodontitis-induced trabecular changes" 43 : 658-664, 2008

22 Bianchi AE, "Factors affecting bone response around loaded titanium dental implants : a literature review" 3 : 135-140, 2005

23 Heitz-Mayfield LJ, "Does excessive occlusal load affect osseointegration? An experimental study in the dog" 15 : 259-268, 2004

24 Chen SK, "Digital imaging analysis with mathematical morphology and fractal dimension for evaluation of periapical lesions following endodontic treatment" 100 : 467-472, 2005

25 Southard TE, "Detection of simulated osteoporosis in maxillae using radiographic texture analysis" 43 : 123-132, 1996

26 Law AN, "Detecting osteoporosis using dental radiographs : a comparison of four methods" 127 : 1734-1742, 1996

27 Veltri M, "Correlation of radiographic fractal analysis with implant insertion torque in a rabbit trabecular bone model" 26 : 108-114, 2011

28 Akesson L, "Comparison of pan oramic and intraoral radiography and pocket probing for the measurement of the marginal bone level" 19 : 326-332, 1992

29 Frost HM, "Bone"mass"and the"mechanostat" : a proposal" 219 : 1-9, 1987

30 Berglundh T, "Bone reactions to longstanding functional load at implants : an experimental study in dogs" 32 : 925-932, 2005

31 Gotfredsen K, "Bone reactions adjacent to titanium implants subjected to static load. A study in the dog (I)" 12 : 1-8, 2001

32 Pauwels F., "Biomechanics of the locomotor apparatus: contributions on the functional anatomy of the locomotor apparatus" Springer-Verlag 1980

33 Matsunaga S, "Biomechanical role of peri-implant cancellous bone architecture" 23 : 333-338, 2010

34 Melsen B, "Biological reactions of alveolar bone to orthodontic loading of oral implants" 12 : 144-152, 2001

35 Van Staden RC, "Application of the finite element method in dental implant research" 9 : 257-270, 2006

36 Southard TE, "Alveolar process fractal dimension and postcranial bone density" 91 : 486-491, 2001

37 White SC, "Alterations of the trabecular pattern of the jaws in patients with osteoporosis" 88 : 628-635, 1999

38 Ogiso M, "A histologic comparison of the functional loading capacity of an occluded dense apatite implant and the natural dentition" 71 : 581-588, 1994

39 Shrout MK, "A comparison of 2 patient populations using fractal analysis" 69 : 9-13, 1998

40 Dae-Hyun Lee, "A clinical study of alveolar bone quality using the fractal dimension and the implant stability quotient" 대한치주과학회 40 (40): 19-24, 2010