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Automatic analysis algorithm for acquiring standard dental and mandibular shape data using cone-beam computed tomography

 Jae Joon Hwang  ;  Sang-Sun Han  ;  Chena Lee  ;  Yun-Hoa Jung 
 Scientific Reports, Vol.8(1) : 13516, 2018 
Journal Title
 Scientific Reports 
Issue Date
This study aims to introduce a new algorithm developed using retrospective cone-beam computed tomography (CBCT) data to obtain a standard dental and mandibular arch shape automatically for an optimal panoramic focal trough. A custom-made program was developed to analyze each arch shape of randomly collected 30 CBCT images. First, volumetric data of the mandible were binarized and projected in the axial direction to obtain 2-dimensional arch images. Second, 30 patients' mandibular arches were superimposed on the center of the bilateral distal contact points of the mandibular canines to generate an average arch shape. Third, the center and boundary of a panoramic focal trough were obtained using smoothing splines. As a result, the minimum thickness and transition of the focal trough could be obtained. If this new algorithm is applied to big data of retrospective CBCT images, standard focal troughs could be established by race, sex, and age group, which would improve the image quality of dental panoramic radiography.
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2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Radiology (영상치의학교실) > 1. Journal Papers
Yonsei Authors
Lee, Chena(이채나) ORCID logo https://orcid.org/0000-0002-8943-4192
Han, Sang Sun(한상선) ORCID logo https://orcid.org/0000-0003-1775-7862
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