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Journal of Medical Imaging

Clinical cross-polarization optical coherence tomography assessment of subsurface enamel below dental resin composite restorations
Author(s): Patricia Lenton; Joel D. Rudney; Alex Fok; Robert S. Jones
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Paper 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.

Paper Details

Date Published: 7 May 2014
PDF: 8 pages
J. Med. Imag. 1(1) 016001 doi: 10.1117/1.JMI.1.1.016001
Published in: Journal of Medical Imaging Volume 1, Issue 1
Show Author Affiliations
Patricia Lenton, Univ. of Minnesota School of Dentistry (United States)
Joel D. Rudney, Univ. of Minnesota School of Dentistry (United States)
Alex Fok, Univ. of Minnesota School of Dentistry (United States)
Robert S. Jones, Univ. of Minnesota School of Dentistry (United States)

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