Model of thermal and optical effects in dental pulp during the neodymium and diode lasers irradiation
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Brazilian Dental Journal
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Applications of high intensity lasers in the enamel and dentine
can produce adverse thermal effects into the pulp. Since the evaluation
thermal effects into the intact pulp is not a solved problem,
extracted teeth models have been used frequently. Current models,
however, simulate only tooth thermal properties, not taking
the remaining radiation in the pulp chamber into account. The
aim of this study was to verify if the remaining radiation from
neodymium and diode lasers that reach the pulp chamber, at the
models using extracted bovine teeth, can causes local thermal
effects. For this purpose, two models were developed using
extracted bovine teeth with their pulp chambers filled with: water
(model 1) and with an optical absorbent (model 2). Models were
radiated with 1 W. The obtained results show that, for both lasers,
the temperature rise in model 2 pulp chamber is: i) up to 11%
higher than in the model 1 when the enamel is radiated and ii) up
to 37% higher than in the model 1 when dentine is radiated (1
mm from the pulp). Thus, remaining radiation into the pulp is relevant
for the above mentioned lasers and doses.
Como referenciar
FARHART, P.B.A.; TANJI, E.Y.; FARHAT, R.P.; ZEZELL, D.M.; MIYAKAWA, W.; NOGUEIRA, G.E.C. Model of thermal and optical effects in dental pulp during the neodymium and diode lasers irradiation. Brazilian Dental Journal, v. 15, p. 90-90, 2004. Special issue. Disponível em: http://repositorio.ipen.br/handle/123456789/32738. Acesso em: 30 Dec 2025.
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.