Question 9 of 10
Toothbrush should be changed every _______________
A: 2-3 months
RIGHT
Explanation: The American Dental Association recommends changing your toothbrush every three to four months. If the bristles wear out faster, or you often get sick and have a weak immune system, then this should be done even more often. The same is true for electric toothbrush heads.
B: 4-6 months
ERROR
Correct Answer: The American Dental Association recommends changing your toothbrush every three to four months. If the bristles wear out faster, or you often get sick and have a weak immune system, then this should be done even more often. The same is true for electric toothbrush heads.