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17 February 2011 Development of polarization dental imaging modality and evaluation of its clinical feasibility
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Proceedings Volume 7884, Lasers in Dentistry XVII; 78840D (2011)
Event: SPIE BiOS, 2011, San Francisco, California, United States
Recently, it has become more important to objectively analyze teeth color in terms of esthetical point of view. In the evaluation of tooth color, the specular reflection caused by saliva on tooth may cause artifacts in analysis. In this study, a polarization dental imaging modality (PDIM) was developed to address the specular reflection problems. Clinical validity was evaluated by performing three studies such as shade-guide selection for implant, plaque distribution detection, and evaluation of tooth whitening. In the selection of shade-guide, in-vivo human teeth and shade-guide color images were obtained. The minimum color difference between shade-guide and tooth was calculated using Euclidian distance. In the plaque distribution detection, teeth disclosing agent was used to differentiate plaque from teeth and images were taken. In the evaluation of whitening, whiteness indices were calculated using 29 shade-guide images. Results presented that the new imaging modality could provide reproducible images by effectively removing the specular reflection on teeth surface and therefore, minimize artifacts in the quantitatively analysis of shade-guide selection, plaque detection, and tooth whitening. In conclusion, the PDIM potentially proved its clinical efficacy as a new imaging modality.
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Eunji Kim, Taeyoon Son, Yunjin Bae, and Byungjo Jung "Development of polarization dental imaging modality and evaluation of its clinical feasibility", Proc. SPIE 7884, Lasers in Dentistry XVII, 78840D (17 February 2011);

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