@article{oai:asahi-u.repo.nii.ac.jp:00010826, author = {北井, 則行 and KITAI, NORIYUKI and 留, 和香子 and 村林, 学 and 服部, 修磨 and HATTORI, SHUUMA and 竹内, 綾 and 勝又, 明敏 and KATSUMATA, AKITOSHI}, issue = {2019-02}, journal = {2019-02}, month = {2019-02, 2019-04-15}, note = {The purpose of this study was to investigate the registration error of the method for integration between the dental model and CT digital data, and to present a three-dimensional (3D) digital dental model with tooth root morphology. Three radiopaque copper triangle-shaped sheets were attached to the palate of the phantom jaw, which comprises parts of the ready-made phantom for radiographic examination training. The upper dental model was scanned using a 3D surface imaging device. The phantom was also radiographed using a CT scanner. The dental model and CT digital data were integrated according to the contact point between the bilateral upper central incisors, the bilateral canine cusp tips, the buccal cusp tips of the bilateral second premolars, and the mesiobuccal cusp tips of the bilateral first molars using a 3D imaging software program. The distances of the corresponding points between the dental model and CT digital data for the 9 vertex points of the copper triangle-shaped sheets on the integrated image were measured. All dimensions were measured five times by one of the authors with a minimum interval of one day between measurements. The mean and standard deviation of the distances of the corresponding points between the dental model and CT digital data were 0.59 and 0.19mm, respectively. The results suggest that the dental model and CT digital data were integrated with acceptable accuracy for orthodontic clinical use.}, pages = {2019-02--2019-02}, title = {口腔模型とCT デジタルデータの統合誤差}, volume = {2019-02}, year = {} }