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Effect of adding opaque porcelain on the final color of porcelain laminates
P Yaman1, S R Qazi, J B Dennison
1Department of Cardiology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, USA.
Statement Of Problem:
Increasing the opacity of porcelain laminates is one of the techniques most commonly used to mask the color of darkly stained teeth.
Purpose Of Study:
Two different brands of porcelain (Fortune and Optec) disks that contained various amounts of modifying porcelains to alter opacity were cemented with untinted resin cement to a dark colored substrate.
Material And Methods:
The color of the substrate was measured before and after cementation and the change in color was calculated.
Results:
Fortune porcelain showed a progressive increase in the amount of change produced as the modifying porcelain was increased, whereas Optec porcelain showed a decrease in the amount of change as modifying porcelain was increased.
Conclusion:
A progressive increase of yellow was exhibited in the samples as the amount of opacity is increased.