Four Variables Affecting Magnitude of Dentrifice Abrasiveness

Abstract

Abrasion studies were done to evaluate which factors in addition to dentifrice abrasive will affect the wear caused by brushing dentin with abrasives. The factors were concentration, diluent, brush brand, brush hardness, and temperature of testing. Hard brushes were found to cause higher abrasion and glycerine to cause low abrasion. Concentration, brush brand, and temperature were significant influences and there were four interactions. Apparently, no single set of conditions will suffice for testing dentifrice abrasiveness.