Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 1 de 1
Filtrar
Mais filtros











Base de dados
Intervalo de ano de publicação
1.
Lasers Med Sci ; 23(2): 141-7, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-17899311

RESUMO

This study evaluated the resistance to demineralization and fluoride incorporation of enamel irradiated with Er:YAG. A total of 110 bovine teeth were selected and divided into eight groups: unlased, 37% phosphoric acid, and samples irradiated with the Er:YAG laser at several fluences (31.84 J/cm(2), 25.47 J/cm(2), 19.10 J/cm(2), 2.08 J/cm(2), 1.8 J/cm(2), and 0.9 J/cm(2)). The application of acidulated phosphate fluoride was performed after treatments. All samples were immersed in 2 ml of 2.0 M acetic-acetate acid solution at pH 4.5 for 8 h, and fluoride, calcium, and phosphorus ions dissolved were analyzed by atomic absorption spectrometry and spectrophotometry. The phosphoric acid and 31.84 J/cm(2) groups presented the lowest dissolution of calcium and phosphorus ions. Higher fluoride incorporation was observed on 1.8 J/cm(2) and 0.9 J/cm(2) groups. Based on these results, Er:YAG laser was able to decrease acid dissolution and increase fluoride uptake and can be a promissory alternative for preventive dentistry.


Assuntos
Cárie Dentária/prevenção & controle , Esmalte Dentário/efeitos da radiação , Fluoretos/metabolismo , Lasers , Terapia com Luz de Baixa Intensidade/instrumentação , Animais , Bovinos , Testes de Atividade de Cárie Dentária , Suscetibilidade à Cárie Dentária , Solubilidade do Esmalte Dentário , Microscopia Eletrônica de Varredura , Projetos Piloto , Espectrofotometria/instrumentação , Desmineralização do Dente
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA