| http://www.w3.org/ns/prov#value | - The shade selection of a tooth is a complex process, created from factors such as lighting source and angle, opacity, translucency, light scattering, surface reflection and the viewer???s eye, and the brain influencing the overall perception of tooth color.9 Thus, understanding how these optical characteristics impact the final shade, in the case of the whitened dentition, gives insight into how l
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