Using fractal dimension to evaluate alveolar bone defects treated with various bone substitute materials

Kozakiewicz, Marcin; Chaberek, Sławomir; Bogusiak, Katarzyna

doi:10.2478/s11536-013-0197-y

Cited by 4 publications

(3 citation statements)

References 53 publications

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“…One should not forget other measures of corticalization being developed in dentistry itself like fractal dimension and multifractal spectra [53,[68][69][70]. It seems that this valuable and interesting source may in the future bring very useful measures of peri-implant bone remodeling.…”

Section: Discussionmentioning

confidence: 99%

Measures of Corticalization

Kozakiewicz

2022

JCM

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After the insertion of dental implants into living bone, the condition of the peri-implant bone changes with time. Implant-loading phenomena can induce bone remodeling in the form of the corticalization of the trabecular bone. The aim of this study was to see how bone index (BI) values behave in areas of bone loss (radiographically translucent non-trabecular areas) and to propose other indices specifically dedicated to detecting corticalization in living bone. Eight measures of corticalization in clinical standardized intraoral radiographs were studied: mean optical density, entropy, differential entropy, long-run emphasis moment, BI, corticalization index ver. 1 and ver. 2 (CI v.1, CI v.2) and corticalization factor (CF). The analysis was conducted on 40 cortical bone image samples, 40 cancellous bone samples and 40 soft tissue samples. It was found that each measure distinguishes corticalization significantly (p < 0.001), but only CI v.1 and CI v.2 do so selectively. CF or the inverse of BI can serve as a measure of peri-implant bone corticalization. However, better measures are CIs as they are dedicated to detecting this phenomenon and allowing clear clinical deduction.

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Section: Discussionmentioning

confidence: 99%

Measures of Corticalization

Kozakiewicz

2022

JCM

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“…28 Kozakiewicz et al analyzed how different implanted materials affected the healing of alveolar defects using fractal dimension computation taken from radiographs. 29 Studies suggest that a fractal dimension varied with different biomaterials throughout the time of observation and reflected the individual character of bone remodeling. Visible changes in the structure emerge earlier in places of implantation of bovine bone mineral and beta-tricalcium phosphate in comparison to the group of biomaterials constituting more stable patterns of radiotexture: algae derived hydroxyapatite, biological active glass, synthetic hydroxyapatite.…”

Section: 24mentioning

confidence: 99%

“…The authors conclude that fractal techniques can be a descriptor of bone substitutes. 29 However, an examination of the fractal dimension is not a suitable method to be used in each case. In order to obtain reliable data, the image resolution and the exposure time must be appropriately chosen.…”

Section: 24mentioning

confidence: 99%

The use of fractal analysis in medicine: A literature review

Leszczyński¹,

Sokalski²

2017

Dent. Med. Probl.

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In many areas of science, there is a need to assess the complexity of the analyzed objects. One instrument used to assess this complexity can be fractal analysis, which provides a quantitative measure in the form of a fractal dimension. A fractal dimension is a quantitative parameter used for measuring the complexity of the examined objects. Fractal analysis is the process of information processing, where the input data is an image. The generated information is stored in the form of numbers, an array of numbers, the decision of the text etc. The implementation of the image processing requires a computer system. In the publications of recent years, there is increasing interest in the potential use of fractal analysis in many fields of science, including medicine. Fractal analysis expands the capabilities of the diagnosis of systemic diseases, facilitating and accelerating their examination. In dentistry, the calculation of the fractal dimension can be a tool for early detection of a periapical lesion on the basic X-rays. Fractal analysis can also be a helpful indicator in predicting the primary stability of an implant. On the basis of the literature and own experience, the authors sum up the use of fractal analysis in accordance with current medical knowledge.

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Use of fractal analysis in dental images: a systematic review

Kato

Barra

Tavares

et al. 2020

Dentomaxillofacial Radiology

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Objectives: This study reviewed the use of fractal analysis (FA) in dental images. Methods: A search was performed using PubMed, MEDLINE, LILACS, Web of Science and SCOPUS databases. The inclusion criteria were human studies in the English language, with no date restriction. Results: 78 articles were found in which FA was applied to panoramic radiographs (34), periapical radiographs (21), bitewing radiographs (4), cephalometric radiograph (1), cone beam CT (15), micro-CT (3), sialography (2), and ultrasound (2). Low bone mineral density (21) and systemic or local diseases (22) around the bone of dental implants were the main subjects of the study of FA. Various sizes and sites of the regions of interest were used to evaluate the bone structure. Different ways were used to treat the image and to calculate FA. FA of 43 articles showed significant differences in the comparison of groups, mainly between healthy and sick patients. Conclusions: FA in Dentistry has been widely applied to the study of images. Panoramic and periapical radiographs were those most frequently used. The Image J software and the box-counting method were extensively adopted in the studies reviewed herein. Further studies are encouraged to improve clarification of the parameters that directly influence FA.

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Using fractal dimension to evaluate alveolar bone defects treated with various bone substitute materials

Abstract: Abstract

Cited by 4 publications

References 53 publications

Measures of Corticalization

Measures of Corticalization

The use of fractal analysis in medicine: A literature review

Use of fractal analysis in dental images: a systematic review

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