★ RDA Dental Caries Quiz
What is the earliest sign of tooth decay?
A. dark stained tooth
B. white spot
C. hole or cavity
D. pain
Preview next quiz:
Which is NOT true of plaque?
A. it is a colorless, sticky coating on the teeth
B. it contains an adhesive substance called the pellicle
C. it is removed by the tongue or by rinsing the mouth with water
D. it contains 99% more oral bacteria than the same amount of saliva
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