The American Dental Association announced the results of a survey which showed that many people need help when it comes to knowing about oral health issues.

Overall, the survey found that when people answered a true and false questionnaire, they earned a "D," on average. Approximately 90 percent thought they should brush after each meal, when they should only do it twice per day. Another 75 percent were unaware of the proper age to take a child to the dentist for the first time. The correct response is before the child's first birthday, the ADA notes.

"The results of the survey were quite shocking and really show how important it is for people to become more involved in their own oral health," said Dr. William Calnon, president of ADA. "Oral health is a critical part of overall health."

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