References
- Hassel AJ, Koke U, Schmitter M, Beck J, Rammelsberg P. Clinical effect of different shade guide systems on the tooth shades of ceramic-veneered restorations. Int J Prosthodont 2005;18:422–6.
- Ahn JS, Lee YK. Color distribution of a shade guide in the value, chroma, and hue scale. J Prosthet Dent 2008;100:18–28.
- VITA. Instructions for use of 3D-Master. Available online at: http://www.vita-zahnfabrik.com, accessed.
- MacAdam DL. Color measurement. Themes and variations. Springer series in optical sciences. New York: Springer-Verlag Berlin Heidelberg; 1981.
- Kuehni FG, Marcus RT. An experiment in visual scaling of small color differences. Color Res Appl 1979;4:83–91.
- O'Brien WJ, Groh CL, Boenke KM. A new, small color-difference equation for dental shades. J Dent Res 1990;69:1762–4.
- Ragain JC, Johnston WM. Color acceptance of direct dental restorative materials by human observers. Col Res Appl 2000;25:278–85.
- Johnston WM, Kao EC. Assessment of appearance match by visual observation and clinical colorimetry. J Dent Res 1989;68:819–22.
- Corcodel N, Rammelsberg P, Moldovan O, Dreyhaupt J, Hassel AJ. Effect of external light conditions during matching of tooth color: an intraindividual comparison. Int J Prosthodont 2009;22:75–7.
- Haddad HJ, Jakstat HA, Arnetzl G, Borbely J, Vichi A, Dumfahrt H, Does gender and experience influence shade matching quality? J Dent 2009;37:40–4.
- Hannak WB, Hugger A, Hugger S, Jakstat H. First experiences with a new training program for colour differentiation. Presented at the IADR 2006, Brisbane, Queensland, Australia. Abstract number 0393.
- Hannak WB, Zithier P, Roggensack M, Freesmeyer WB. Can the ability to identify tooth color differences be learned? Presented at the IADR 2006, Brisbane, Queensland, Australia. Abstract number 0616.
- Hugo B, Witzel T, Klaiber B. Comparison of in vivo visual and computer-aided tooth shade determination. Clin Oral Investig 2005;9:244–50.