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Proceedings Paper

Effects of diverse laser parameters at 9.3 um on soft tissue and bone
Author(s): Petra B. B. Wilder-Smith; Anna-Marie A. Arrastia-Jitosho; Jennifer Dang; Lih-Huei L. Liaw; Michael J. Schell; Michael W. Berns
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Paper Abstract

These investigations were performed to determine thermal, histological and incisional effects in soft tissue of laser irradiation at 9.3 um. Specifically, the consequences of varying pulse duration, interval and frequency, peak and average powers and energy densities were studied. In fresh pig's jaws, 6 standardized incisions, 3 cm in length, were made per parameter using a template and motorized jig. Incisions were made at various standardized anatomical sites, and surface thermal events monitored using an IR camera. Laser parameters investigated: power: 1 - 11 W, duty cycle: 10 - 90%, Pulse duration: 1 - 200 ms, at gated continuous wave. Superpulse and OptiPulseTM modes with 300 us pulses were also investigated. Incision width and depth as well as collateral tissue effects were assessed statistically. They were directly related to the parameters used. Ease of incision and effects on underlying bone were also parameter-related.

Paper Details

Date Published: 23 April 1996
PDF: 10 pages
Proc. SPIE 2672, Lasers in Dentistry II, (23 April 1996); doi: 10.1117/12.238775
Show Author Affiliations
Petra B. B. Wilder-Smith, Beckman Laser Institute and Medical Clinic (United States)
Anna-Marie A. Arrastia-Jitosho, Beckman Laser Institute and Medical Clinic (United States)
Jennifer Dang, Beckman Laser Institute and Medical Clinic (United States)
Lih-Huei L. Liaw, Beckman Laser Institute and Medical Clinic (United States)
Michael J. Schell, Univ. of California/Irvine (United States)
Michael W. Berns, Beckman Laser Institute and Medical Clinic (United States)


Published in SPIE Proceedings Vol. 2672:
Lasers in Dentistry II
Harvey A. Wigdor; John D. B. Featherstone; Joel M. White; Joseph Neev, Editor(s)

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