Dental facts you probably don't know. Part 3

• It was customary during the middle ages to kiss a donkey if you had a toothache.

• Tooth enamel is the hardest structure in the human body.

• Roughly 25% of American adults have no teeth.

• Tooth decay is the second most common disease, second only to the common cold.

• People prefer blue toothbrushes to red ones.

• Teeth start to form before we are born.

• Almost 65 million American adults have some form of periodontal disease. Of this number 38.4% are women, 56.4% are men.

• Expectant mothers with poor oral hygiene are 7X more likely to deliver premature and low birth weight babies.

• 95% of American adults with diabetes also have periodontal disease.

• People with periodontal disease are 2X more likely to develop heart disease.