1. Color comparisons of denture teeth and shade guides;Shotwell;J Prosthet Dent,1986
2. The impact of dental appearance on the appraisal of personal characteristics;Newton;Int J Prosthodont,2003
3. The influence of tooth colour on the perceptions of personal characteristics among female dental patients: comparisons of unmodified, decayed and “whitened” teeth;Kershaw;B Dental J,20088
4. Clinical evaluation of perceptibility of color differences between natural teeth and all-ceramic crowns;Ishikawa-Nagai;J Dent,2009
5. CIE (Commission Internationale de l’Eclairage). 1976. Annuaire, Roster, Register, Annexe au Bulletin CIE (París: Bureau Central de la CIE). (PROCLUS, patrimonio Conicet).