Question

Which is the most likely reason for brushing your teeth in the morning and before bed?

• A. That's when most people eat the most.
• B. Food is easier to remove from your mouth at those times.
• C. It's easiest to remember to do at those times.
• D. Bacteria continue to digest food in your mouth at night.

Answer 1

The correct option is D

Bacteria continue to digest food in your mouth at night.

The bacteria produce acid throughout the day, and even more when you're eating and the acid byproducts may eat into your enamel and cause cavities. Brushing your teeth regularly helps to remove plaque and prevent it from forming.