High Spot Indicators

About high spot indicators

A high spot indicator is a liquid colour brushed onto the surface to be tested; the solvent evaporates in seconds and leaves a film about 3 microns thick. Each contact removes the colour exactly where it touches, so the material underneath shows through.

Coats the restoration itself; contact wears the colour away at the high spot. It can be used on highly polished surfaces such as gold or ceramic.

Sources: Sharma et al. 2013, Materials used for recording static and dynamic occlusal contact marks: a literature review (J Clin Exp Dent)