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Imaging Sci Dent. 2011 Jun;41(2):71-78. English. Original Article. https://doi.org/10.5624/isd.2011.41.2.71
Huh KH , Baik JS , Yi WJ , Heo MS , Lee SS , Choi SC , Lee SB , Lee SP .
Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea.
Department of Oral and Maxillofacial Surgery, Ilsan Paik Hospital, Inje University, Goyang, Korea.
Department of Oral and Maxillofacial Radiology, BK21 Craniomaxillofacial Life Science, and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea. wjyi@snu.ac.kr
Interdisciplinary Program in Radiation Applied Life Science Major, College of Medicine, Seoul National University, Seoul, Korea.
Department of Oral Anatomy, BK21 Craniomaxillofacial Life Science, and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea.
Abstract

PURPOSE: This study was performed to determine the optimal tile size for the fractal dimension of the mandibular trabecular bone using a tile counting method. MATERIALS AND METHODS: Digital intraoral radiographic images were obtained at the mandibular angle, molar, premolar, and incisor regions of 29 human dry mandibles. After preprocessing, the parameters representing morphometric characteristics of the trabecular bone were calculated. The fractal dimensions of the processed images were analyzed in various tile sizes by the tile counting method. RESULTS: The optimal range of tile size was 0.132 mm to 0.396 mm for the fractal dimension using the tile counting method. The sizes were closely related to the morphometric parameters. CONCLUSION: The fractal dimension of mandibular trabecular bone, as calculated with the tile counting method, can be best characterized with a range of tile sizes from 0.132 to 0.396 mm.

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