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Proceedings Paper

Preliminary characterization of hard dental tissue ablation with femtosecond lasers
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Paper Abstract

Because of low operating speed and excessive collateral damage, lasers have not succeeded in replacing conventional tools in many surgical and dental applications. Recent developments now allow the new generation of amplified ultrashort pulse lasers to operate at high repetition rates and high single pulse energies. A Titanium:sapphire Chirped Pulse Regenerative Amplifier system operating at 1 KHz and 50 fs pulse duration, was used to demonstrate ultrashort pulse ablation of hard and soft tissue. Maximum ablation rates for enamel and dentin were approximately 0.650 micrometers /pulse and 1.2 micrometers /pulse respectively. Temperature measurements at both front and rear surface of a 1 mm dentin and enamel slices showed minimal increases. Scanning electron micrographs clearly show that little thermal damage is generate by the laser system. If an effective delivery system is developed, ultrashort pulse system may offer a viable alternative as a safe, low noise dental tool.

Paper Details

Date Published: 18 May 1998
PDF: 11 pages
Proc. SPIE 3255, Applications of Ultrashort-Pulse Lasers in Medicine and Biology, (18 May 1998); doi: 10.1117/12.308214
Show Author Affiliations
Joseph Neev, Consultant (United States)
Jeffrey A. Squier, Univ. of California/San Diego (United States)


Published in SPIE Proceedings Vol. 3255:
Applications of Ultrashort-Pulse Lasers in Medicine and Biology
Joseph Neev, Editor(s)

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