Effect of Er,Cr:YSGG laser associated with fluoride on the control of enamel erosion progression
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DENISE MARIA ZEZELL
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Archives of Oral Biology
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Objective: To evaluate the effect of Er,Cr:YSGG laser associated or not with acidulated phosphate fluoride (APF)
on the control of enamel erosion progression. Design: Enamel slabs (4mm×4mm×2 mm) from bovine incisors
were flattened, polished, and received a tape on their test surfaces, leaving a 4mm×1mm area exposed.
Specimens were eroded (10 min in 1% citric acid solution) and randomly assigned into 8 experimental groups
(n=10): Control (no treatment); F (APF gel, 1.23% F, pH 3.6–3.9); Er,Cr:YSGG laser irradiation (P1: 0.25 W,
20 Hz, 2.8 J/cm2, 56 W/cm2); Er,Cr:YSGG laser irradiation (P2: 0.50 W, 20 Hz, 5.7 J/cm2, 1136 W/cm2);
Er,Cr:YSGG laser irradiation (P3: 0.75 W, 20 Hz, 8.5 J/cm2, 1704 W/cm2); F+Laser P1; F+Laser P2; F+Laser
P3. Specimens were then subjected to erosive cycling (5 min immersion in 0.3% citric acid solution, followed by
immersion in artificial saliva for 60 min; 4×/day for 5 days). At the end of cycling, surface loss (SL, in μm) was
determined with optical profilometry. Selected specimens were further evaluated by environmental scanning
electron microscopy (n=3). Data were analyzed using Kruskal-Wallis and Tukey tests (α=0.05). Results:
Group F+Laser P2 had the lowest SL value, differing significantly from the control; however, with no significant
difference from the other groups. All groups, except F+Laser P2, showed no significant difference in SL
when compared with the control. An irregular and rough surface, suggestive of a melting action of laser, was
observed on enamel in Laser P2 and F+Laser P2 groups. Conclusions: Association of the Er,Cr:YSGG laser in
parameter 2 with fluoride was the only treatment capable of controlling the progression of enamel erosion.
Como referenciar
SILVA, VILMARA R.M. da; VIANA, ITALLO E.L.; LOPES, RAQUEL M.; ZEZELL, DENISE M.; SCARAMUCCI, TAIS; ARANHA, ANA C.C. Effect of Er,Cr:YSGG laser associated with fluoride on the control of enamel erosion progression. Archives of Oral Biology, v. 99, p. 156-160, 2019. DOI: 10.1016/j.archoralbio.2019.01.011. Disponível em: http://repositorio.ipen.br/handle/123456789/29873. Acesso em: 30 Jun 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.