Which of the Following Is True of Abrasive Materials in Dentifrices

Multiple Choice

Which of the following is true of abrasive materials in dentifrices?

A) The abrasive agents improve the efficiency of the toothbrush in the removal of stains,food debris,and biofilm.
B) Abrasive agents decrease the light reflected by the enamel.
C) Higher abrasive rankings are desirable to prevent removal of softer tooth structures and restorations.
D) Toothpastes do not contain abrasive materials.