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Radiologic assessment of bone healing after orthognathic surgery using fractal analysis

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dc.contributor.authorPark, Kwan-Soo-
dc.contributor.authorHeo, Min-Suk-
dc.contributor.authorLee, Sam-Sun-
dc.contributor.authorChoi, Soon-Chul-
dc.contributor.authorPark, Tae-Won-
dc.contributor.authorJeon, In-Seong-
dc.contributor.authorKim, Jong-Dae-
dc.date.accessioned2011-10-12T07:00:02Z-
dc.date.available2011-10-12T07:00:02Z-
dc.date.issued2002-12-
dc.identifier.citationKorean J Oral Maxillofac Radiol 2002;32:201-206en
dc.identifier.issn1229-8212-
dc.identifier.urihttp://hdl.handle.net/10371/74052-
dc.description.abstractPurpose : To evaluate the radiographic change of operation sites after orthognathic surgery using the digital image processing and fractal analysis. Materials and Methods : A series of panoramic radiographs of thirty-five randomly selected patients who had undergone mandibular orthognathic surgery (bilateral sagittal split ramus osteotomy) without clinical complication for osseous healing, were taken. The panoramic radiographs of each selected patient were taken at pre-operation (stage 0), 1 or 2 days after operation (stage 1), 1 month after operation (stage 2), 6 months after operation (stage 3), and 12 months after operation (stage 4). The radiographs were digitized at 600 dpi, 8 bit, and 256 gray levels. The region of interest, centered on the bony gap area of the operation site, was selected and the fractal dimension was calculated by using the tile-counting method. The mean values and standard deviations of fractal dimension for each stage were calculated and the differences among stage 0, 1, 2, 3, and 4 were evaluated through repeated measures of the ANOVA and paired t-test. Results : The mean values and standard deviations of the fractal dimensions obtained from stage 0, 1, 2, 3, and 4 were 1.658±0.048, 1.580±0.050, 1.607±0.046, 1.624±0.049, and 1.641 ±0.061, respectively. The fractal dimensions from stage 1 to stage 4 were shown to have a tendency to increase (p < 0.05). Conclusion: The tendency of the fractal dimesion to increase relative to healing time may be a useful means of evaluating post-operative bony healing of the osteotomy site.en
dc.description.sponsorshipThis study was supported by a grant of the Korea Health 21 R&D Project, Ministry
of Health & Welfare, Republic of Korea.(Ol-PI5-Pe1-0lCH12-0002)
en
dc.language.isoenen
dc.publisher대한구강악안면방사선학회en
dc.subjectimage processingen
dc.subjectcomputer-assisteden
dc.subjectfractalsen
dc.subjectosteotomyen
dc.subjectwound healingen
dc.titleRadiologic assessment of bone healing after orthognathic surgery using fractal analysisen
dc.typeArticleen
dc.contributor.AlternativeAuthor박관수-
dc.contributor.AlternativeAuthor허민석-
dc.contributor.AlternativeAuthor이삼선-
dc.contributor.AlternativeAuthor최순철-
dc.contributor.AlternativeAuthor박태원-
dc.contributor.AlternativeAuthor전인성-
Appears in Collections:
College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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