Safe use of lasers In endodontics
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1999
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ANNUAL CONFERENCE AND EXHIBITION OF ACADEMY OF LASER DENTISTRY, 6th
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Resumo
The purpose of this study was to determine safe parameters for
intracanal laser irradiation, since excessive heat at the root surface
may cause damage to the periradicular tissues. The effect of laser
treatment irradiation on temperature rise and the morphological-related
changes on root canal surfaces were determined using
thermocouple probe measurements and scanning electron
microscopy, respectively. Single-rooted, extracted teeth were
irradiated with the pulsed Er:YAG laser (2.94 μm) using a 375-μm
diameter fiberoptic probe placed in the root canal. Teeth were
maintained in a 37°C water bath and temperature changes recorded
as root canals were lased. Laser parameters were 40 mJ and 80 mJ/
pulse, measured at the fiber end, and repetition rate of 10Hz. The
root canals were irradiated for four periods with 20-second breaks
in between, slowly moving the laser fiber from the apical to coronal
surfaces in a continuous, circling fashion at 2 mm/sec. The range
of 2.0°C to 4.0°C temperature rise was measured. Laser parameters
that produced temperature rise at the root surface below 10ºC were
considered safe to the periradicular tissues during intracanal laser
irradiation.
Como referenciar
CECCHINI, SILVIA C.M.; ZEZELL, DENISE M.; BACHMANN, LUCIANO; PINOTTI, MARCOS; NOGUEIRA, GESSE E.C.; EDUARDO, CARLOS P. Safe use of lasers In endodontics: thermal considerations [Er:YAG]. In: ANNUAL CONFERENCE AND EXHIBITION OF ACADEMY OF LASER DENTISTRY, 6th, February 3-6, 1999, Palm Springs, CA, USA. Abstract... Coral Springs, FL, USA: Academy of Laser Dentistry, 1999. p. 33-33. Disponível em: http://repositorio.ipen.br/handle/123456789/32349. Acesso em: 18 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.