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CO2 laser and/or fluoride enamel treatment against in situ/ex vivo erosive challenge.
Jordão, Maísa Camillo; Forti, Gustavo Manzano; Navarro, Ricardo Scarparo; Freitas, Patrícia Moreira; Honório, Heitor Marques; Rios, Daniela.
Afiliação
  • Jordão MC; - Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, SP, Brasil.
  • Forti GM; - Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, SP, Brasil.
  • Navarro RS; - Universidade Camilo Castelo Branco, Departamento de Odontopediatria, São Paulo, SP, Brasil.
  • Freitas PM; - Universidade de São Paulo, Faculdade de Odontologia, Laboratório Especial de Laser em Odontologia, São Paulo, SP, Brasil.
  • Honório HM; - Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, SP, Brasil.
  • Rios D; - Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, SP, Brasil.
J Appl Oral Sci ; 24(3): 223-8, 2016.
Article em En | MEDLINE | ID: mdl-27383703
OBJECTIVE: This in situ/ex vivo study investigated the effect of CO2 laser irradiation and acidulated phosphate fluoride gel (APF) application, separately and in combination, on enamel resistance to erosion. MATERIAL AND METHODS: During 2 experimental 5-day crossover phases, 8 volunteers wore intraoral appliances containing bovine enamel blocks which were submitted to four groups: 1st phase - control, untreated and CO2 laser irradiation, 2nd phase - fluoride application and fluoride application before CO2 laser irradiation. Laser irradiation was performed at 10.6 µm wavelength, 5 µs pulse duration and 50 Hz frequency, with average power input and output of 2.3 W and 2.0 W, respectively (28.6 J/cm2). APF gel (1.23%F, pH 3.5) was applied on enamel surface with a microbrush and left on for 4 minutes. Then, the enamel blocks were fixed at the intraoral appliance level. The erosion was performed extraorally 4 times daily for 5 min in 150 mL of cola drink. Enamel loss was measured profilometrically after treatment and after the in situ phase. The data were tested using one-way Repeated Measures Anova and Tukey's test (p<0.05). RESULTS: CO2 laser alone (2.00±0.39 µm) did not show any significantly preventive effect against enamel erosion when compared with the control group (2.41±1.20 µm). Fluoride treated enamel, associated (1.50±0.30 µm) or not (1.47±0.63 µm) with laser irradiation, significantly differed from the control. CONCLUSION: The APF application decreased enamel wear; however, CO2 laser irradiation did not enhance fluoride ability to reduce enamel wear.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Erosão Dentária / Fluoreto de Fosfato Acidulado / Esmalte Dentário / Lasers de Gás Tipo de estudo: Clinical_trials / Evaluation_studies / Observational_studies / Risk_factors_studies Limite: Adult / Animals / Female / Humans / Male Idioma: En Revista: J Appl Oral Sci Assunto da revista: ODONTOLOGIA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Erosão Dentária / Fluoreto de Fosfato Acidulado / Esmalte Dentário / Lasers de Gás Tipo de estudo: Clinical_trials / Evaluation_studies / Observational_studies / Risk_factors_studies Limite: Adult / Animals / Female / Humans / Male Idioma: En Revista: J Appl Oral Sci Assunto da revista: ODONTOLOGIA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil