Serial removal of caries lesions from tooth occlusal surfaces using near-IR image-guided IR laser ablation

Kenneth H. Chan; Henry Tom; Cynthia L. Darling; Daniel Fried

doi:10.1117/12.2083651

24 February 2015 Serial removal of caries lesions from tooth occlusal surfaces using near-IR image-guided IR laser ablation

Kenneth H. Chan, Henry Tom, Cynthia L. Darling, Daniel Fried

Author Affiliations +

Proceedings Volume 9306, Lasers in Dentistry XXI; 93060G (2015) https://doi.org/10.1117/12.2083651
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

Previous studies have established that caries lesions can be imaged with high contrast without the interference of stains at near-IR wavelengths greater than 1300-nm. It has been demonstrated that computer controlled laser scanning systems utilizing IR lasers operating at high pulse repetition rates can be used for serial imaging and selective removal of caries lesions. In this study, we report our progress towards the development of algorithms for generating rasterized ablation maps from near-IR reflectance images for the removal of natural lesions from tooth occlusal surfaces. An InGaAs camera and a filtered tungsten-halogen lamp producing near-IR light in the range of 1500-1700-nm were used to collect crosspolarization reflectance images of tooth occlusal surfaces. A CO₂ laser operating at a wavelength of 9.3- μm with a pulse duration of 10-15-μs was used for image-guided ablation.

Citation Download Citation

Kenneth H. Chan, Henry Tom, Cynthia L. Darling, and Daniel Fried "Serial removal of caries lesions from tooth occlusal surfaces using near-IR image-guided IR laser ablation", Proc. SPIE 9306, Lasers in Dentistry XXI, 93060G (24 February 2015); https://doi.org/10.1117/12.2083651

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available