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Use este identificador para citar ou linkar para este item: https://repositorio.ufba.br/handle/ri/16586
Tipo: Artigo de Periódico
Título: Use of laser fluorescence in dental caries diagnosis: a fluorescence x biomolecular vibrational spectroscopic comparative study
Título(s) alternativo(s): Brazilian Dental Journal
Autor(es): Carvalho, Fabíola Bastos de
Barbosa, Artur Felipe Santos
Zanin, Fátima Antonia Aparecida
Brugnera Júnior, Aldo
Silveira Júnior, Landulfo
Pinheiro, Antonio Luiz Barbosa
Autor(es): Carvalho, Fabíola Bastos de
Barbosa, Artur Felipe Santos
Zanin, Fátima Antonia Aparecida
Brugnera Júnior, Aldo
Silveira Júnior, Landulfo
Pinheiro, Antonio Luiz Barbosa
Abstract: The aim of this work was to verify the existence of correlation between Raman spectroscopy readings of phosphate apatite (∼960 cm−1), fluoridated apatite (∼575 cm−1) and organic matrix (∼1450 cm−1) levels and Diagnodent® readings at different stages of dental caries in extracted human teeth. The mean peak value of fluorescence in the carious area was recorded and teeth were divided in enamel caries, dentin caries and sound dental structure. After fluorescence readings, Raman spectroscopy was carried out on the same sites. The results showed significant difference (ANOVA, p<0.05) between the fluorescence readings for enamel (16.4 ± 2.3) and dentin (57.6 ± 23.7) on carious teeth. Raman peaks of enamel and dentin revealed that ∼575 and ∼960 cm−1 peaks were more intense in enamel caries. There was significant negative correlation (p<0.05) between the ∼575 and ∼960 cm−1 peaks and dentin caries. It may be concluded that the higher the fluorescence detected by Diagnodent the lower the peaks of phosphate apatite and fluoridated apatite. As the early diagnosis of caries is directly related to the identification of changes in the inorganic tooth components, Raman spectroscopy was more sensitive to variations of these components than Diagnodent.
Palavras-chave: Vibrational spectroscopy
Hydroxyapatite
Dental caries
Tooth demineralization
País: Brasil
Tipo de Acesso: Acesso Aberto
URI: http://repositorio.ufba.br/ri/handle/ri/16586
Data do documento: 2013
Aparece nas coleções:Artigo Publicado em Periódico (Faculdade de Odontologia)

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