Clinical cross-polarization optical coherence tomography assessment of subsurface enamel below dental resin composite restorations

Patricia Lenton; Joel D. Rudney; Alex Fok; Robert S. Jones

doi:10.1117/1.JMI.1.1.016001

7 May 2014 Clinical cross-polarization optical coherence tomography assessment of subsurface enamel below dental resin composite restorations

Patricia Lenton, Joel D. Rudney, Alex Fok, Robert S. Jones

Author Affiliations +

Journal of Medical Imaging, Vol. 1, Issue 1, 016001 (May 2014). https://doi.org/10.1117/1.JMI.1.1.016001

Abstract

A newly designed intraoral swept source cross-polarization optical coherence tomography (CP-OCT) imaging system was used to examine the integrity of the subsurface enamel below resin composite restorations placed in primary teeth. CP-OCT analysis was performed using images obtained from resin composite restoration in 62 (n=62 ) pediatric subjects. Clinical examination was performed by a single examiner prior to CP-OCT imaging and analysis. CP-OCT images are presented using a unique combined intensity image, where a false color scale is overlaid on the grayscale intensity image. There was a clear difference in the distribution of the mean-backscattered intensity (mR) between restorations recently placed and those possessing frank cavitation (Student’s t-test,P<0.0001 ). For mR above 15.49 dB, the sensitivity was 80% and specificity 86%. The Youden index J was 0.8 above 12.3 dB where sensitivity was 100% and specificity was 80%. CP-OCT imaging may be used to confirm the subsurface marginal integrity below resin composite restorations but with careful consideration of limitations of the imaging modality. CP-OCT imaging may be a useful adjunct to clinical visual investigation to confirm that a composite margin has a sound and well-adapted interface.

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Patricia Lenton, Joel D. Rudney, Alex Fok, and Robert S. Jones "Clinical cross-polarization optical coherence tomography assessment of subsurface enamel below dental resin composite restorations," Journal of Medical Imaging 1(1), 016001 (7 May 2014). https://doi.org/10.1117/1.JMI.1.1.016001

Published: 7 May 2014

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