Acta Scientific Dental Sciences (ASDS)(ISSN: 2581-4893)

Research Article Volume 6 Issue 12

Effect of Illuminants, Colour Cards and Shade Guides on Shade Matching - A Comparative Study

Nitin HC1, K Chandrasekharan Nair2* and Jayakar Shetty3

1Specialist Prosthodontist, Wassan Speciality Dental Center, Muscat, Sultanate of Oman, India
2Professor Emeritus, Department of Prosthodontics, Sri Sankara Dental College, Akathu¬muri, Thiruvananthapuram, Kerala, India
3Former Professor, Dept. of Prosthodontics, AECS Maaruti College of Dental Sciences, Bangalore, India

*Corresponding Author: K Chandrasekharan Nair, Professor Emeritus, Department of Prosthodontics, Sri Sankara Dental College, Akathu¬muri, Thiruvananthapuram, Kerala, India.

Received: November 02, 2022; Published: November 16, 2022


Introduction: The present study was conducted to find out the effect of different light sources viz., sunlight, incandescent light, halogen light, tube light and colour corrected light on shade selection. The effect of gazing at blue and grey cards and usage of Vitapan Classic and Vitapan 3D master shade guides.

Materials and Methods: Two shade tabs were selected from Vitapan Classic and Vitapan 3D Master (Vita Zahnfabrik, Germany) shade guides. Matching to the selected tabs, a feldspathic and a pressable ceramic disc was fabricated. Shade selection was done under five different light sources. The shade matching procedure was repeated after a few days by the volunteers after gazing at a blue coloured card for ten seconds and again after a few days after gazing at a neutral grey coloured card for ten seconds. The shades selected were recorded in a proforma. The entire shade matching procedure was repeated again for a second time.

Results: The light source was found to be a significant factor in influencing the correct identification of shade (P<0.001). Use of coloured cards improved the shade matching when compared to the non-usage of cards (P<0.001). The Vitapan 3D Master has higher odds/chances of correctly identifying the right shade, when compared to Vitapan Classical shade guide (P<0.05).


  1. Sunlight is superior to other light sources. But when artificial lights have to be used, a color corrected light or the light from the dental chair (halogen light) can be used to obtain better shade matches.
  2. Gazing at neutral grey and blue card is an effective adjunct in improving the quality of shade selection.
  3. The Vitapan 3D Master shade guide was a better shade matching tool than Vitapan Classical shade guide.

Keywords:Mucocutaneous Disorders; Quality of Life; OHRQoL; MMP; PV; SJS; EM; OHIP-14


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Citation: K Chandrasekharan Nair., et al. “Effect of Illuminants, Colour Cards and Shade Guides on Shade Matching - A Comparative Study".Acta Scientific Dental Sciences 6.12 (2022): 73-85.


Copyright: © 2022 K Chandrasekharan Nair., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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