Your teeth are more than just something to chew and smile with. Research is increasingly showing that they can have an effect on your overall health.
원문출처 : http://www.cnn.com/2016/08/03/health/teeth-flossing-overall-health/index.html
원문출처 : http://www.cnn.com/2016/08/03/health/teeth-flossing-overall-health/index.html