A smile can last a lifetime-if you take care of it. For that reason, it’s important for parents to instill good oral health habits in children as early as possible. You can keep teeth healthy for a lifetime. Here are seven steps to practice  a good oral health. According to U.S. Surgeon General Richard H. Carmona’s “National Call to Action to Promote Oral Health” report, children lose more than 51 million school hours and adults lose more than 164 million work…