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Proceedings Paper

Er:YAG laser ablation: 5-year recall
Author(s): Tatjana Dostalova M.D.; Helena Jelinkova; Hana Kucerova M.D.; Mitsunobu Miyagi
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Paper Abstract

Pulsed Er:YAG laser removal of dentin and enamel tissue is effective. One of the dangers of this laser ablation is tooth overheating by the laser energy combined with heat related changes in pulp and side effects around the cavity margins. The purpose of present study was to determine the effect of the Er:YAG laser ablation in treating dental caries after a period of 5 years. During dry laser ablation, the temperature in the pulp chamber rose, and there is insufficient time for the tooth structures to dissipate the heat between the pulses. The addition ofwater mist during irradiation can speed up ablation of enamel and dentin. Water mist cools the surface sufficiently to prevent undesirable physical changes. From our results it follows that Er:YAG laser ablation is an excellent method for treating of frontal teeth - incisors, canines, premolars and initial occiusal caries of molars. However visual control of non-contact therapy is necessary. Compound, intricate cavity shape close to pulp cavity can not be prepared with laser radiation. Therefore the working time is much longer in comparison with the classical drilling machine. Low tooth sensitivity to laser ablation, preparation without unpleasant noise and vibration create a new technique, which is very successful for small and medium caries.

Paper Details

Date Published: 1 June 2001
PDF: 6 pages
Proc. SPIE 4247, Thermal Treatment of Tissue: Energy Delivery and Assessment, (1 June 2001); doi: 10.1117/12.427845
Show Author Affiliations
Tatjana Dostalova M.D., Institute of Dental Research/Czech Technical Univ. (Czech Republic)
Helena Jelinkova, Czech Technical Univ. (Czech Republic)
Hana Kucerova M.D., Institute of Dental Research/Czech Tecnical Univ. (Czech Republic)
Mitsunobu Miyagi, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 4247:
Thermal Treatment of Tissue: Energy Delivery and Assessment
Thomas P. Ryan, Editor(s)

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