Laser techniques for the evaluation of wear in Class II restorations.
A technique for the quantitative determination of the changes in surface topography of restorations during wear has been developed. This involves the optical contouring of the surface using a laser, and the generation of contour maps. Several different methods for interpreting these maps are discussed. A computer-aided method is the most consistently accurate and measures wear volume to an accuracy of 2--5%.
D003201:Computers; D003723:Dental Amalgam; D003793:Dental Restoration, Permanent; D005069:Evaluation Studies as Topic; D006801:Humans; D007834:Lasers; D013499:Surface Properties
D003723:Dental Amalgam