1. If you don't brush and floss well enough, plaque will build up on your teeth and cause

a. Cavities
b. Gum disease
c. Bad breath
d. All of the above

2. Most people don't brush

a. Hard enough
b. Long enough
c. Often enough
d. All of the above

3. You should replace your toothbrush at least once a month, because after only a few weeks of use the bristles will be

a. Too flattened to brush away plaque effectively
b. Sharp enough to tear your gum tissue
c. So worn they're a breeding ground for bacteria
d. All of the above

4. If your teeth are sensitive to heat, cold, or sweet things, switch to a toothpaste with

a. Tartar control
b. Strontium chloride
c. Baking soda
d. None of the above

5. Getting too much fluoride can result in

a. Fluoride-resistant bacteria
b. Cancer and lower IQs in children
c. White spots on children's teeth
d. All of the above

6. You can help stop yourself from grinding your teeth in your sleep by

a. Chewing gum during the day
b. Drinking hot tea before bed
c. Taking a hot bath at night
d. All of the above

7. When a permanent tooth gets knocked out, it should be

a. Rinsed and replaced in the socket right away
b. Packed in ice until you can get to the dentist
c. Put under your pillow for the tooth fairy
d. None of the above