"Good oral hygiene is important to overall health. ... Shepherd said a daily brushing and flossing doesn't prevent tartar buildup between the teeth, so a professional scaling at least twice a year is necessary." <http://www.hometownlife.com/article/20091018/LIFE/910180427/1103/NEWS10>http://www.hometownlife.com/article/20091018/LIFE/910180427/1103/NEWS10 www.peoplewho.org