Affiliation:
1. University of Washington
2. Colgate-Palmolive Company
Abstract
There remains a clinical need for an accurate and non-invasive imaging
tool for intraoral evaluation of dental conditions. Optical coherence
tomography (OCT) is a potential candidate to meet this need, but the
design of current OCT systems limits their utility in the intraoral
examinations. The inclusion of light-induced autofluorescence (LIAF)
can expedite the image collection process and provides a large field
of view for viewing the condition of oral tissues. This study
describes a novel LIAF-OCT system equipped with a handheld probe
designed for intraoral examination of microstructural (via OCT) and
microvascular information (via OCT angiography, OCTA). The handheld
probe is optimized for use in clinical studies, maintaining the
ability to detect and image changes in the condition of oral tissue
(e.g., hard tissue damage, presence of dental restorations, plaque,
and tooth stains). The real-time LIAF provides guidance for OCT
imaging to achieve a field of view of approximately 6.9
mm × 7.8 mm, and a penetration depth of 1.5 mm to
3 mm depending on the scattering property of the target oral tissue.
We demonstrate that the proposed system is successful in capturing
reliable depth-resolved images from occlusal and palatal surfaces and
offers added design features that can enhance its usability in
clinical settings.
Funder
Colgate-Palmolive Company
Carl Zeiss Meditec AG
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Subject
Atomic and Molecular Physics, and Optics,Biotechnology
Cited by
5 articles.
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