Quantifying Tooth Whitening in Terms Of X-Shades Whiter
In vitro whitening studies provide manufacturers with a cost-effective tool for assessing the whitening efficacy of oral care products. The extent of whitening is often measured using a spectrophotometer, and the amount of whitening reported as the total change (Delta E). A problem for marketing departments is that consumers struggle to understand this term and to link changes in delta E to colour changes that are relatable to the human eye.In this case study, from our expert Gavin Thomas, we describe our solution to this problem which involves converting changes in delta E into changes in tooth shade, a parameter that most consumers can understand and perceive.
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