Measurement of the severity of natural smooth surface (interproximal) caries lesions with polarization sensitive optical coherence tomography
2005; Wiley; Volume: 37; Issue: 1 Linguagem: Inglês
10.1002/lsm.20169
ISSN1096-9101
AutoresPatara Ngaotheppitak, Cynthia L. Darling, Daniel Fried,
Tópico(s)Advanced Fluorescence Microscopy Techniques
ResumoLasers in Surgery and MedicineVolume 37, Issue 1 p. 78-88 Preclinical Reports Measurement of the severity of natural smooth surface (interproximal) caries lesions with polarization sensitive optical coherence tomography Patara Ngaotheppitak, Patara Ngaotheppitak Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, California 94143Search for more papers by this authorCynthia L. Darling PhD, Cynthia L. Darling PhD Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, California 94143Search for more papers by this authorDaniel Fried PhD, Corresponding Author Daniel Fried PhD [email protected] Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, California 94143Department of Preventive and Restorative Dental Sciences, University of California, 707 Parnassus Avenue 94143, San Francisco, California.Search for more papers by this author Patara Ngaotheppitak, Patara Ngaotheppitak Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, California 94143Search for more papers by this authorCynthia L. Darling PhD, Cynthia L. Darling PhD Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, California 94143Search for more papers by this authorDaniel Fried PhD, Corresponding Author Daniel Fried PhD [email protected] Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, California 94143Department of Preventive and Restorative Dental Sciences, University of California, 707 Parnassus Avenue 94143, San Francisco, California.Search for more papers by this author First published: 11 May 2005 https://doi.org/10.1002/lsm.20169Citations: 57AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract Background and Objectives Previous studies have demonstrated that polarization sensitive optical coherence tomography (PS-OCT) can be used to image early dental caries. The purpose of this study was to compare the measured reflectivity of natural caries lesions found on smooth surfaces (interproximal lesions) with the mineral loss measured using digital microradiography (DM) in order to determine if PS-OCT can be used as a non-destructive method to measure the severity of dental decay and resolve the internal structure of caries lesions. Materials and Methods A PS-OCT system operating at 1,310 nm was used to acquire polarization resolved images of natural white spot lesions and pigmented lesions on the smooth surfaces of extracted teeth. The integrated reflectivity from lesion areas was compared to polarized light microscopic images (PLM) and to the integrated mineral loss from the same lesion area measured using high resolution DM. Results The frequently complex internal structure of caries lesions could be resolved with PS-OCT. Such structural information is potentially useful for determining whether or not the lesion is active and progressing or whether it has become arrested and remineralized and does not require intervention. There was a strong correlation between the integrated mineral loss of the caries lesions measured using DM and the integrated reflectivity in the perpendicular polarization axis of the PS-OCT system. Conclusions The integrated reflectivity in the perpendicular polarization channel can be used to represent the severity of demineralization in natural early caries lesions. Therefore, PS-OCT has considerable potential as a non-destructive clinical probe of early caries lesions to assess their severity, monitor their progression over-time and potentially assess lesion activity. © 2005 Wiley-Liss, Inc. REFERENCES 1 Chauncey HH, Glass RL, Alman JE. 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