Handheld OCT probe for intraoral diagnosis on teeth

R. Haak; M. Ahrens; H. Schneider; M. Strumpski; C. Rüger; M. Häfer; G. Hüttmann; D. Theisen-Kunde; H. Schulz-Hildebrandt

doi:10.1117/12.2527185

19 July 2019 Handheld OCT probe for intraoral diagnosis on teeth

R. Haak, M. Ahrens, H. Schneider, M. Strumpski, C. Rüger, M. Häfer, G. Hüttmann, D. Theisen-Kunde, H. Schulz-Hildebrandt

Author Affiliations +

Proceedings Volume 11073, Clinical and Preclinical Optical Diagnostics II; 110730W (2019) https://doi.org/10.1117/12.2527185
Event: European Conferences on Biomedical Optics, 2019, Munich, Germany

Abstract

In order to fully exploit the diagnostic potential of optical coherence tomography (OCT) in contemporary restorative dentistry, an intraorally applicable OCT probe has been constructed. The probe was connected to a commercially available OCT system. The handling of the probe and the quality of the OCT images were optimized and evaluated on human extracted teeth fixed in a patient-equivalent simulation. In addition, the probe was applied intraorally to volunteers. With the intraoral OCT probe hard tooth substances, carious lesions in enamel and dentin and composite restorations could be imaged. In vivo, the probe allowed OCT imaging of all tooth surfaces except the vestibular surfaces of third molars and proximal surface areas of molars within a "blind spot" at a distance of 2.5 mm from the tooth surface. Superficial tissue structures of the marginal gingiva could also be imaged. The intraoral OCT probe is a promising tool for non-invasive imaging and monitoring of healthy and diseased hard tooth substances and tooth-colored restorations. It can be a valuable addition to established methods for caries diagnosis and restoration evaluation.

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R. Haak, M. Ahrens, H. Schneider, M. Strumpski, C. Rüger, M. Häfer, G. Hüttmann, D. Theisen-Kunde, and H. Schulz-Hildebrandt "Handheld OCT probe for intraoral diagnosis on teeth", Proc. SPIE 11073, Clinical and Preclinical Optical Diagnostics II, 110730W (19 July 2019); https://doi.org/10.1117/12.2527185

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