Longevity of diode laser irradiation in dentine
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2018
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LASER DENTISTRY WORLD CONGRESS, 16th; DGL ANNUAL MEETING, 27th; INTERNATIONAL WALED CONGRESS, 6th
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Resumo
The efficacy of pulsed infrared lasers
on clinical dentin wear sensitivity is
well stablished in the Literature. This
work aims to evaluate the effect of
diode laser combined with fluoride
products regarding the longevity of the
sensibility treatment under the effect of
the domestic use products. After Ethics
Committee approval, 75 slabs of bovine
root dentin measuring 8 mm2, were
randomized into 5 groups (n=1 5): G1-
untreated; G2- treated with acidulated
phosphate fluoride (APF-gel, [F-J=1.23
%, pH=3.3 to 3.9); G3- irradiated with
diode laser (980 nm, 2.5W, 5ms, 25Hz)
using a cool paste as photoabsorber;
G4- irradiated with diode laser (same
conditions of G3) using a coal paste as
photoabsorber + application of APF-gel
and G5- application of APF-gel+ diode
laser irradiation (same conditions of
G3). All samples were submitted to an
erosive and abrasive demineralization
(Sprite Zero, pH=2.8, 90s, 4x/day), and
remineralization (artificial saliva, pH=7.4)
cycling for 10 days. Twice a day, slabs
were brushed for 15s using a whitening
dentifrice (Sensodyne True White, GSK,
EUA). Slabs were evaluated by Optical
Coherence Tomography (OCT) at the
initial and 7th day of cycling. OCT
measurements found a significant
increase on dentin wear depth and
area of lesions with the increase of
cycling days. G1 and G2 hod significant
higher mineral loss compared to the
other groups. G3, G4 and GS showed no
significant differences between them.
Results suggested that the sensibility of
the treatment with the diode laser has
longevity despite the high abrasivity of
dentifrice used in maintenance.
Como referenciar
PEREIRA, DAISA L.; MORAES, MARCIA C.D.; ZAMATARO, CLAUDIA B.; ZEZELL, DENISE M. Longevity of diode laser irradiation in dentine: an in vitro study. In: LASER DENTISTRY WORLD CONGRESS, 16th; DGL ANNUAL MEETING, 27th; INTERNATIONAL WALED CONGRESS, 6th, October 1-3, 2018, Aachen, Germany. Abstract... Aachen, Germany: International Society for Laser in Dentistry, 2018. p. 47-47. Disponível em: http://repositorio.ipen.br/handle/123456789/32776. Acesso em: 20 Mar 2026.
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.