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Influence of Er,Cr:YSGG laser, associated or not to desensitizing agents, in the prevention of acid erosion in bovine root dentin.
Arantes, Brenda Ferreira; de Oliveira Mendonça, Laura; Palma-Dibb, Regina Guenka; Faraoni, Juliana Jendiroba; de Castro, Denise Tornavoi; Geraldo-Martins, Vinícius Rangel; Lepri, Cesar Penazzo.
Afiliação
  • Arantes BF; School of Dentistry, University of Uberaba, Uberaba, MG, Brazil.
  • de Oliveira Mendonça L; School of Dentistry, University of Uberaba, Uberaba, MG, Brazil.
  • Palma-Dibb RG; Ribeirao Preto School of Dentistry, University of Sao Paulo, Sao Paulo, SP, Brazil.
  • Faraoni JJ; Ribeirao Preto School of Dentistry, University of Sao Paulo, Sao Paulo, SP, Brazil.
  • de Castro DT; School of Dentistry, University of Uberaba, Uberaba, MG, Brazil.
  • Geraldo-Martins VR; School of Dentistry, University of Uberaba, Uberaba, MG, Brazil.
  • Lepri CP; School of Dentistry, University of Uberaba, Uberaba, MG, Brazil. cesarlepri@yahoo.com.br.
Lasers Med Sci ; 34(5): 893-900, 2019 Jul.
Article em En | MEDLINE | ID: mdl-30374705
This in vitro study evaluated the influence of the Er,Cr:YSGG laser, associated or not to desensitizing agents, in the prevention of acid erosion in bovine root dentin. Eighty dentin specimens were selected and divided into eight groups (n = 10): G1: negative control; G2: positive control (5% fluoride varnish-FV); G3: Er,Cr:YSGG laser; G4: FV + laser; G5: 3% potassium oxalate; G6: 3% potassium oxalate + laser; G7: biphasic calcium silicate/phosphate gel (gel); G8: gel + laser. Laser parameters: 0.5 W, 6.25 J/cm2 at 1-mm distance. The erosive drink used was a cola soft-drink (pH = 2.42 at 4 °C), lasting 5 min, twice a day, with 6-h intervals between the challenges, during 14 days. Kolmogorov-Smirnov and Levene's tests were satisfied. The surface roughness data were submitted to ANOVA and Tukey post hoc tests. For the wear profile, Kruskal-Wallis and Dunn post hoc tests were used. Afterwards, the Spearman correlation test was performed. All statistical tests assumed a significance level of 5% (α = 0.05). G1 presented the highest surface roughness value after the erosive challenge (3.586 µm2 ± 0.205 µm2) and the G7 presented the lowest surface roughness value after the erosive challenge (1.071 µm2 ± 0.180 µm2). For the lost volume, G4 presented the lowest percentage (9.7% ± 0.9%), while G1 had the highest percentage (41.8% ± 2.5%), both with p < 0.05. There was a weak correlation between the response variables (ρ = 0.33). All groups presented lower values of surface roughness and loss of volume when compared to the negative control group. For the surface roughness, the biphasic calcium silicate/phosphate gel presented the best result. For volume loss, the 5% fluoride varnish + Er,Cr:YSGG laser showed the best results compared to the other groups.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Erosão Dentária / Raiz Dentária / Ácidos / Dentina / Lasers de Estado Sólido / Dessensibilizantes Dentinários Tipo de estudo: Risk_factors_studies Limite: Animals Idioma: En Revista: Lasers Med Sci Assunto da revista: BIOTECNOLOGIA / RADIOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
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XML
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Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Erosão Dentária / Raiz Dentária / Ácidos / Dentina / Lasers de Estado Sólido / Dessensibilizantes Dentinários Tipo de estudo: Risk_factors_studies Limite: Animals Idioma: En Revista: Lasers Med Sci Assunto da revista: BIOTECNOLOGIA / RADIOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido