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Evaluation of crystalline indexes obtained through infrared spectroscopy and x-ray diffraction in thermally treated human tooth samples.
Vargas-Becerril, Nancy; Reyes-Gasga, José; García-García, Ramiro.
Afiliação
  • Vargas-Becerril N; Instituto de Física, UNAM, Circuito de la Investigación s/n, Ciudad Universitaria, 04510 Coyoacán, Ciudad de México, Mexico.
  • Reyes-Gasga J; Instituto de Física, UNAM, Circuito de la Investigación s/n, Ciudad Universitaria, 04510 Coyoacán, Ciudad de México, Mexico. Electronic address: jreyes@fisica.unam.mx.
  • García-García R; Instituto de Física, UNAM, Circuito de la Investigación s/n, Ciudad Universitaria, 04510 Coyoacán, Ciudad de México, Mexico. Electronic address: ramiro@fisica.unam.mx.
Mater Sci Eng C Mater Biol Appl ; 97: 644-649, 2019 Apr.
Article em En | MEDLINE | ID: mdl-30678951
The crystalline indexes obtained through infrared spectroscopy (CIIR) and X-ray diffraction (CIXRD) were used to analyze the structural changes of dentin and enamel in human teeth when subjected to heat treatments between room temperature (25 °C) to 1200 °C in atmospheric air and argon. Thermogravimetric (TGA) and differential scanning calorimetry (DSC) analyses of sound powders were also used to support the analysis. As the temperature increased, the CIXRD increased exhibiting a behavior like that of the crystal grain size, and the CIIR increased until the ß-TCP phase appeared. These results indicated that the CIIR was more variable to structural changes than the CIXRD.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Dente / Difração de Raios X / Espectroscopia de Infravermelho com Transformada de Fourier Limite: Humans Idioma: En Revista: Mater Sci Eng C Mater Biol Appl Ano de publicação: 2019 Tipo de documento: Article País de afiliação: México País de publicação: Holanda

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Dente / Difração de Raios X / Espectroscopia de Infravermelho com Transformada de Fourier Limite: Humans Idioma: En Revista: Mater Sci Eng C Mater Biol Appl Ano de publicação: 2019 Tipo de documento: Article País de afiliação: México País de publicação: Holanda