The influence of some different factors on the accuracy of shade selection.

  title={The influence of some different factors on the accuracy of shade selection.},
  author={H Dagg and Brian O'Connell and Noel M Claffey and Declan A Byrne and Catherine M Gorman},
  journal={Journal of oral rehabilitation},
  volume={31 9},
The purpose of this study was to elucidate some of the factors on which accurate shade taking depends. Custom shade tabs (0.5, 1.0 and 1.5 mm porcelain thickness) were fabricated from selected Vita and Shofu porcelains. Four main factors were investigated, namely, the difference between the two types of porcelain used, the effect of light quality, the effect of porcelain thickness and the experience of the observer. The chi-square test for independence at a probability level of P <0.05 was used… CONTINUE READING

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