Near-infrared multispectral endoscopic imaging of deep artificial interproximal lesions in extracted teeth

Lasers in Surgery and Medicine
Yaxuan ZhouEric J Seibel

Abstract

A safer alternative method to radiographic imaging is needed. We present a multispectral near-infrared scanning fiber endoscope (nirSFE) for dental imaging which is designed to be the smallest imaging probe with near-infrared (NIR) imaging (1200-2000 nm). The prototype nirSFE is designed for wide-field forward viewing of scanned laser illumination at 1310, 1460, or 1550 nm. Artificial lesions with varying sizes and locations were prepared on proximal surfaces of extracted human teeth to examine capability and limitation of this new dental imaging modality. Nineteen artificial interproximal lesions and several natural occlusal lesions on extracted teeth were imaged with nirSFE, OCT, and microCT. Our nirSFE system has a flexible shaft as well as a probe tip with diameter of 1.6 mm and a rigid length of 9 mm. The small form factor and multispectral NIR imaging capability enables multiple viewing angles and reliable detection of lesions that can extend into the dentin. Among nineteen artificial interproximal lesions, the nirSFE reflectance imaging operating at 1460-nm and OCT operating at 1310-nm scanned illumination exhibited high sensitivity for interproximal lesions that were closer to occlusal surface. Diagnosis from a non-blin...Continue Reading

References

Sep 10, 2005·Dental Clinics of North America·Daniel FriedChristopher M Bühler
Jul 11, 2006·Journal of Biomedical Optics·Cynthia L DarlingDaniel Fried
Mar 1, 1973·Applied Optics·G M Hale, M R Querry
Oct 26, 2011·Biomedical Optics Express·Soojeong ChungCynthia L Darling
Jul 17, 2013·Lasers in Surgery and Medicine·William A FriedCynthia L Darling
Oct 29, 2014·World Journal of Radiology·Naseem ShahAjay Logani
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Mar 25, 2015·Journal of Biomedical Optics·Robert H WilsonAnthony J Durkin
Sep 17, 2015·Clinical Oral Investigations·Jan KühnischReinhard Hickel
Mar 22, 2016·Lasers in Surgery and Medicine·Stephanie MansourPetra Wilder-Smith
Apr 28, 2016·British Journal of Sports Medicine·Margo MountjoyRichard Budgett

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Citations

Feb 11, 2020·Healthcare Technology Letters·Yaxuan ZhouEric J Seibel

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