Al-Haj Ali, Sanaa N., Ra’fat I, Farah, Abdullah Aldhefeeri, and Ibrahim Alduraibi. 2021. “Comparison of Color Difference and Reliability of Two Intraoral Spectrophotometers”. Brazilian Journal of Oral Sciences 20 (00). Limeira, SP:e211076. https://doi.org/10.20396/bjos.v20i00.8661076.