Question 1 of 10
The thinner the tooth enamel, the more yellow the tooth becomes.
A: yes
RIGHT
Explanation: Initially, tooth enamel is naturally white. Unfortunately, as you erase, it becomes more transparent. At this moment, the underlying layer, the dentin, begins to show through it. This layer, unlike enamel, has a yellowish tint.
B: No
ERROR
Correct answer: Initially, tooth enamel has a natural white color. Unfortunately, as you erase, it becomes more transparent. At this moment, the underlying layer, the dentin, begins to show through it. This layer, unlike enamel, has a yellowish tint.