<img src="http://img.webmd.com/dtmcms/live/webmd/consumer_assets/site_images/article_thumbnails/magazine/2013/05_2013/word_of_mouth_may_2013_xml_magazine/69x75_word_of_mouth_may_2013_xml_magazine.jpg" style="border:0;" alt="man using dental floss” />

A top dentist opens up about what he wishes his patients would do.