The effectiveness of the acid etch is dependent on which of the following factors:
A. Material must be used to clean the surface of the tooth prior to etching
B. The effectiveness of the itchant
C. The chemical and physical nature of the tooth
D. The area and surface of the enamel to be itched
A. Material must be used to clean the surface of the tooth prior to etching
B. The effectiveness of the itchant
C. The chemical and physical nature of the tooth
D. The area and surface of the enamel to be itched