Dentin mid-infrared laser ablation at various lasing parameters

Dimitris N. Papadopoulos; Eirini I. Papagiakoumou; Mersini I. Makropoulou; Marouan G. Khabbaz; Alexander A. Serafetinides

doi:10.1117/12.573835

18 January 2005 Dentin mid-infrared laser ablation at various lasing parameters

Dimitris N. Papadopoulos, Eirini I. Papagiakoumou, Mersini I. Makropoulou, Marouan G. Khabbaz, Alexander A. Serafetinides

Author Affiliations +

Proceedings Volume 5630, Optics in Health Care and Biomedical Optics: Diagnostics and Treatment II; (2005) https://doi.org/10.1117/12.573835
Event: Photonics Asia, 2004, Beijing, China

Abstract

In this study a frustrated total internal reflection (FTIR) Q-switched and free-running Er:YAG laser, as well as a novel design transversally excited atmospheric pressure (TEA) oscillator-double amplifier corona preionised high beam quality Hydrogen-Fluoride (HF) laser system, all developed in our lab, were used in dentin ablation experiments. In the case of the Er:YAG laser, pulses of 190 ns in Q-switched operation and of 80 μs pulse width in free-running operation at 2.94 μm were used, while HF laser pulses of 39 ns in the wavelength range of 2.6-3.1 μm in a predominantly TEM₀₀ beam were also used to interact in vitro with dentin tissue. Several samples of freshly extracted human teeth were used, cut longitudinally in facets of 0.4-1.5 mm thick. Ablation experiments were conducted with the laser beam directly focused on the tissue or after being waveguided through suitable mid-IR fiber/waveguide alternatively ended with quartz end-sealing caps. The correlation between the various laser beam parameters, as wavelength, pulse duration, repetition rate, energy and spatial distribution of the beam profile and the ablative characteristics (ablation rates, tissue surface morphology) of dentin surface were investigated.

Citation Download Citation

Dimitris N. Papadopoulos, Eirini I. Papagiakoumou, Mersini I. Makropoulou, Marouan G. Khabbaz, and Alexander A. Serafetinides "Dentin mid-infrared laser ablation at various lasing parameters", Proc. SPIE 5630, Optics in Health Care and Biomedical Optics: Diagnostics and Treatment II, (18 January 2005); https://doi.org/10.1117/12.573835

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Laser ablation

Waveguides

Laser tissue interaction

Er:YAG lasers

Hydrogen fluoride lasers

Q switched lasers

Pulsed laser operation

Show All Keywords

Keywords/Phrases

Search In:

Publication Years