Investigation of the perceptual thresholds of tooth whiteness

Conclusions The thresholds for tooth whiteness perception in CIELAB space and WIO space were determined. The findings demonstrate that for a whitening treatment with a blue covarine optical technology, a colour change of about 2 WIO units would be noticeable. Clinical significance This study gives a better understanding of the tooth whiteness perception threshold, and will help clinicians identify perceivable differences in tooth colour during matching and whitening procedures.

Source: Journal of Dentistry - December 16, 2017 Category: Dentistry Source Type: research