 According to The American Dental Association, not brushing properly allows remnants of food to collect on the teeth, gum line, and the surface of the tongue.
<fluency>  According to The American Dental Association, not brushing properly allows remnants of food to collect on the teeth, gum line, and the surface of the tongue.
 According to the American Dental Association, not brushing properly allows remnants of food to collect on the teeth, gum line, and the surface of the tongue.