Development of polarization dental imaging modality and evaluation of its clinical feasibility

Eunji Kim, Taeyoon Son, Yoon Lee, Byungjo Jung

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Objectives: In the evaluation of tooth color, the specular reflection caused by roughness or saliva on the tooth surface may cause artefacts in image analysis. In this study, a polarization dental imaging modality (PDIM) was developed to obtain cross-polarized images and, therefore, to address the problem of specular reflection. Its clinical validity was evaluated by performing 3 studies of shade tab selection for implant, plaque distribution detection, and evaluation of tooth whitening. Methods: In vivo human tooth and shade guide color images were obtained, and the minimum color difference between them was calculated for the best color matching shade tab selection. A dental plaque disclosing agent was used to differentiate plaque regions on teeth, and plaque distribution was detected by applying the K-means algorithm. In vivo human teeth were treated with a commercial tooth whitening gel, and tooth whitening was quantitatively evaluated using the PDIM images. Results: The PDIM produced repeatable glare-free tooth color images by effectively removing the specular reflection from the tooth surface. The cross-polarized tooth images were successfully utilized for shade guide selection, plaque detection, and tooth whitening by minimizing artefacts in the quantitative image analysis. The PDIM could simultaneously provide both qualitative and quantitative assessment of the tooth condition in clinical diagnosis. Conclusions: The clinical feasibility of the PDIM was successfully verified in 3 clinical studies by showing its clinical efficacy as a new imaging modality.

Original languageEnglish
JournalJournal of Dentistry
Volume40
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2012 Jul 1

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Tooth
Tooth Bleaching
Color
Artifacts
Glare
Dental Plaque
Saliva
Gels

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

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title = "Development of polarization dental imaging modality and evaluation of its clinical feasibility",
abstract = "Objectives: In the evaluation of tooth color, the specular reflection caused by roughness or saliva on the tooth surface may cause artefacts in image analysis. In this study, a polarization dental imaging modality (PDIM) was developed to obtain cross-polarized images and, therefore, to address the problem of specular reflection. Its clinical validity was evaluated by performing 3 studies of shade tab selection for implant, plaque distribution detection, and evaluation of tooth whitening. Methods: In vivo human tooth and shade guide color images were obtained, and the minimum color difference between them was calculated for the best color matching shade tab selection. A dental plaque disclosing agent was used to differentiate plaque regions on teeth, and plaque distribution was detected by applying the K-means algorithm. In vivo human teeth were treated with a commercial tooth whitening gel, and tooth whitening was quantitatively evaluated using the PDIM images. Results: The PDIM produced repeatable glare-free tooth color images by effectively removing the specular reflection from the tooth surface. The cross-polarized tooth images were successfully utilized for shade guide selection, plaque detection, and tooth whitening by minimizing artefacts in the quantitative image analysis. The PDIM could simultaneously provide both qualitative and quantitative assessment of the tooth condition in clinical diagnosis. Conclusions: The clinical feasibility of the PDIM was successfully verified in 3 clinical studies by showing its clinical efficacy as a new imaging modality.",
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Development of polarization dental imaging modality and evaluation of its clinical feasibility. / Kim, Eunji; Son, Taeyoon; Lee, Yoon; Jung, Byungjo.

In: Journal of Dentistry, Vol. 40, No. SUPPL. 1, 01.07.2012.

Research output: Contribution to journalArticle

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