Er,Cr:YSGG laser associated with acidulated phosphate fluoride gel (1.23% F) for prevention and control of dentin erosion progression
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Lasers in Medical Science
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To evaluate the effect of Er,Cr:YSGG laser, associated with fluoride application, on the prevention/control of dentin erosion. Dentin
slabs were embedded in acrylic resin, flattened, and polished. Half of the specimens were previously eroded (10 min immersion in 1%
citric acid solution) and half were kept sound. The specimens (n = 10 each substrate) were randomly allocated into the experimental
groups, according to the following treatments: control (no treatment); APF gel (1.23% F, 1 min); Er,Cr:YSGG laser irradiation (P1:
0.25W, 20 Hz, 2.8 J/cm2, tip S75, beam diameter of 750 μm, 1mmaway fromthe surface); Er,Cr:YSGG laser irradiation (P2: 0.50W,
20 Hz, 5.7 J/cm2, tip S75, beam diameter of 750 μm, 1 mm away from the surface); APF gel + Er,Cr:YSGG laser P1 and; APF gel +
Er,Cr:YSGG laser P2. Afterwards, the specimens underwent an erosion-remineralization cycling, consisting of a 5-min immersion into
0.3% citric acid, followed by 60-min exposure to artificial saliva. This procedure was repeated 4×/day, for 5 days. Surface loss (SL, in
μm) was determined by optical profilometry. Specimens from each group were analyzed by environmental scanning electron microscopy
(n = 3). Data were statistically analyzed (α = 0.05). For the eroded specimens, APF gel presented the lowest SL, being different
from the control. For the sound specimens, none of the groups differed from the control, except for Er,Cr:YSGG laser P2, which
presented the highest SL.When substrates were compared, only the eroded specimens of the control and APF + Er,Cr:YSGG laser P1
Groups showed higher SL. Selective structure removal was observed for the laser-treated groups. None of the Er,Cr:YSGG laser
parameters were effective in the prevention/control dentin erosion. The laser was also unable to enhance the protection of fluoride
against dentin erosion.
Como referenciar
BEZERRA, S.J.C.; TREVISAN, L.R.; VIANA, I.E.L.; LOPES, R.M.; PEREIRA, D.L.; ARANHA, A.C.C.; SCARAMUCCI, TAIS. Er,Cr:YSGG laser associated with acidulated phosphate fluoride gel (1.23% F) for prevention and control of dentin erosion progression. Lasers in Medical Science, v. 34, n. 3, p. 449-455, 2019. DOI: 10.1007/s10103-018-2609-3. Disponível em: http://repositorio.ipen.br/handle/123456789/29274. 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.