Thais Tedeschi Dos Santos, Vicente Silva Mattos, Kelly Fernanda Molena, Francisco Wanderley Garcia de Paula-Silva, Harley Francisco de Oliveira, Juliana Jendiroba Faraoni, Paulo Nelson-Filho, Jarbas Caiado de Castro Neto, Regina Guenka Palma-Dibb, Alexandra Mussolino de Queiroz
This study aimed to assess the in vitro effects of re-irradiation on enamel and dentin properties, simulating head and neck cancer radiotherapy retreatment. Forty-five human permanent molars were classified into five groups: non-irradiated; irradiated 60 Gy, and re-irradiated with doses of 30, 40, and 50 Gy. Raman spectroscopy, scanning electron microscopy (SEM), and energy dispersive x-ray spectroscopy (EDS) were employed for analysis. Raman spectroscopy assessed intensity, spectral area, and specific peaks comparatively...
April 16, 2024: Radiation and Environmental Biophysics