Bacteria related to tooth decay can be shared with loved ones By Dr. Stephanie McGann, DMD, FAGD, Columnist, The Times I hear it every day, “my mom had bad teeth, I guess I got this from her.” Perhaps that is true, but not in the way we may think.  Researchers have found that dental disease causing bacteria can be transmitted from one person to another. In the case of cavities, the bacteria Streptococcus...