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Proceedings Paper

Thermal measurement of root surface temperatures during application of intracanal laser energy in vitro
Author(s): Harold E. Goodis; Joel M. White; Joseph Neev
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Paper Abstract

The use of laser energy to clean, shape, and sterilize a root canal system space involves the generation of heat due to the thermal effect of the laser on the organic tissue contents and dentin walls of that space. If heat generation is above physiologic levels, irreparable damage may occur to the periodontal ligament and surrounding bone. This study measured temperature rise on the outer root surfaces of extracted teeth during intracanal laser exposure. Thirty single rooted, recently extracted teeth free of caries and restorations were accessed pulps extirpated and divided into three groups. Each root canal system was treated with a 1.06 micrometers pulsed Nd:YAG laser with quartz contact probes. Temperatures were recorded for all surfaces (mesial distal, buccal, lingual, apical) with infrared thermography utilizing a detector response time of 1 (mu) sec, sensitivity range (infrared) of 8 to 12 micrometers and a scan rate of 30 frames/sec.

Paper Details

Date Published: 21 July 1993
PDF: 9 pages
Proc. SPIE 1880, Lasers in Orthopedic, Dental, and Veterinary Medicine II, (21 July 1993); doi: 10.1117/12.148325
Show Author Affiliations
Harold E. Goodis, Univ. of California/San Francisco (United States)
Joel M. White, Univ. of California/San Francisco (United States)
Joseph Neev, Beckman Laser Institute and Medical Clinic (United States)

Published in SPIE Proceedings Vol. 1880:
Lasers in Orthopedic, Dental, and Veterinary Medicine II
Dov Gal; Stephen J. O'Brien; C. T. Vangsness; Joel M. White; Harvey A. Wigdor, Editor(s)

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