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Proceedings Paper

Evaluation of two laser systems for intracanal irradiation
Author(s): Silvia Cristina M Cecchini; Denise Maria Zezell; Luciano Bachmann; Marcos Pinotti; Gesse E. Nogueira; Claudia Strefezza; Carlos P. Eduardo
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Paper Abstract

The aim of this study was to determine safe parameters for intracanal laser irradiation. Single rooted extracted teeth were irradiated with the pulsed Er:YAG laser (2.94 μm) and Nd:YAG (1.06 μm) laser. The teeth with remaining root thickness ≥ 1mm on the apical portion were selected and divided in eight groups according to the laser parameters: output energy of 40-100 mJ/pulse; repetition rate of 10-15 Hz. The root canals were irradiated for 4 periods with a 20s breaks in between with the fiber stationary 1mm from the apical foramen, during 3s or from the apical to coronal surface in a continuous, circling fashion, with 2mm/s. Morphological changes were also observed by scanning electron microscopy.

Paper Details

Date Published: 19 May 1999
PDF: 5 pages
Proc. SPIE 3593, Lasers in Dentistry V, (19 May 1999); doi: 10.1117/12.348357
Show Author Affiliations
Silvia Cristina M Cecchini, Univ. of Sao Paulo School of Dentistry (United States)
Denise Maria Zezell, Instituto de Pesquisas Energeticas e Nucleares (Brazil)
Luciano Bachmann, Instituto de Pesquisas Energeticas e Nucleares (Brazil)
Marcos Pinotti, Univ. Federal de Minas Gerais (Brazil)
Gesse E. Nogueira, Instituto de Pesquisas Energeticas e Nucleares (Brazil)
Claudia Strefezza, Instituto de Pesquisas Energeticas e Nucleares (Brazil)
Carlos P. Eduardo, Univ. of Sao Paulo School of Dentistry (Brazil)


Published in SPIE Proceedings Vol. 3593:
Lasers in Dentistry V
John D. B. Featherstone; Peter Rechmann D.D.S.; Daniel Fried, Editor(s)

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