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Title: Laser Ablation of Dental Calculus Around 400 nm Using a Ti:Sapphire Laser

Abstract

A Nd:YAG laser-pumped, frequency-doubled Ti:sapphire laser is used for selective ablation of calculus. The laser provides ≤25 mJ at 400 nm (60-ns pulse width, 10-Hz repetition rate). The laser is coupled into an optical multimode fiber coiled around a 4-in.-diam drum to generate a top-hat output intensity profile. With coaxial water cooling, this is ideal for efficient, selective calculus removal. This is in stark contrast with tightly focused Gaussian beams that are energetically inefficient and lead to irreproducible results. Calculus is well ablated at high fluences ≥2 J/cm^2; stalling occurs below this fluence because of photobleaching. Healthy hard tissue is not removed at fluences ≤3 J/cm^2.

Authors:
; ;
Publication Date:
Research Org.:
Laboratory for Laser Energetics, University of Rochester
Sponsoring Org.:
USDOE
OSTI Identifier:
966061
Report Number(s):
DOE/NA/28302-898
2008-151; 1881
DOE Contract Number:  
FC52-08NA28302
Resource Type:
Conference
Resource Relation:
Journal Name: Lasers in Dentistry XV, edited by R. Rechmann and D. Fried (SPIE, Bellingham, WA, 2009), Vol. 7162, Paper 71620E.; Journal Volume: 7162; Conference: Lasers in Dentistry XV, San Jose, CA, 24-29 January 2009
Country of Publication:
United States
Language:
English
Subject:
selective ablation; calculus removal; frquency-doubled Ti:sapphire laser

Citation Formats

Schoenly, J., Seka, W., and Rechmann, P.. Laser Ablation of Dental Calculus Around 400 nm Using a Ti:Sapphire Laser. United States: N. p., 2009. Web.
Schoenly, J., Seka, W., & Rechmann, P.. Laser Ablation of Dental Calculus Around 400 nm Using a Ti:Sapphire Laser. United States.
Schoenly, J., Seka, W., and Rechmann, P.. Mon . "Laser Ablation of Dental Calculus Around 400 nm Using a Ti:Sapphire Laser". United States.
@article{osti_966061,
title = {Laser Ablation of Dental Calculus Around 400 nm Using a Ti:Sapphire Laser},
author = {Schoenly, J. and Seka, W. and Rechmann, P.},
abstractNote = {A Nd:YAG laser-pumped, frequency-doubled Ti:sapphire laser is used for selective ablation of calculus. The laser provides ≤25 mJ at 400 nm (60-ns pulse width, 10-Hz repetition rate). The laser is coupled into an optical multimode fiber coiled around a 4-in.-diam drum to generate a top-hat output intensity profile. With coaxial water cooling, this is ideal for efficient, selective calculus removal. This is in stark contrast with tightly focused Gaussian beams that are energetically inefficient and lead to irreproducible results. Calculus is well ablated at high fluences ≥2 J/cm^2; stalling occurs below this fluence because of photobleaching. Healthy hard tissue is not removed at fluences ≤3 J/cm^2.},
doi = {},
journal = {Lasers in Dentistry XV, edited by R. Rechmann and D. Fried (SPIE, Bellingham, WA, 2009), Vol. 7162, Paper 71620E.},
number = ,
volume = 7162,
place = {United States},
year = {Mon Oct 19 00:00:00 EDT 2009},
month = {Mon Oct 19 00:00:00 EDT 2009}
}

Conference:
Other availability
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