skip to main content
Idioma:

Optical Attenuation Coefficients of Moist and Dry Tooth Determinate by Optical Coherence Tomography

Sampaio, Diego R. Thomaz ; Albino, Carla R. ; Palma-Dibb, Regina G. ; von der Weid, Jean Pierre ; Bachmann, Luciano ; Dominguez, C. Tolentino

Brazilian journal of physics, 2022-12, Vol.52 (6), Article 209 [Periódico revisado por pares]

New York: Springer US

Texto completo disponível

Citações Citado por
  • Título:
    Optical Attenuation Coefficients of Moist and Dry Tooth Determinate by Optical Coherence Tomography
  • Autor: Sampaio, Diego R. Thomaz ; Albino, Carla R. ; Palma-Dibb, Regina G. ; von der Weid, Jean Pierre ; Bachmann, Luciano ; Dominguez, C. Tolentino
  • Assuntos: Attenuation coefficients ; Backscattering ; Condensed Matter ; Image acquisition ; In vivo methods and tests ; Infrared lasers ; Light attenuation ; Medical imaging ; Optical Coherence Tomography ; Optical properties ; Physics ; Physics and Astronomy ; Teeth ; Tomography
  • É parte de: Brazilian journal of physics, 2022-12, Vol.52 (6), Article 209
  • Descrição: We investigated cross-sectional optical coherence tomography (OCT) images to determine the attenuation coefficients of moist and dry sound bovine teeth under near-infrared laser illumination. We acquired OCT images of the samples using a commercial swept-source OCT equipment, with a central wavelength of 1300 nm. In order to determine the attenuation coefficient of the samples, we studied the attenuation of light as it traveled through the dental tissue. The method considers only backscattered light, which restricts the contributions of speckles and reflective dispersion. To minimize errors related to the OCT equipment and because the operation influences the measurements, we revised various practical details associated with the OCT technique. Our results revealed significant differences between the attenuation coefficients of the dry and moist samples. We interpreted the values measured for dry/moist dentin (24.3/13.2 cm −1 ) and dry/moist enamel (3.1 /2.1 cm −1 ) based on the optical properties of the tooth. These differences were due to modifications in the optical properties of natural tissues when water evaporates from the tooth. The measured values can help us to obtain accurate optical parameters for in vivo and in vitro optical dental diagnosis techniques and therapies that use longer wavelengths.
  • Editor: New York: Springer US
  • Idioma: Inglês
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.