To keep your mouth healthy during pregnancy, brush twice a day with fluoride toothpaste and floss every day. Routine dental treatment and some local anesthetics are safe in pregnancy, although it’s better to postpone elective dental treatments until after pregnancy or take care of them before pregnancy. Many women worry about having their teeth x-rayed in pregnancy. The radiation exposure from dental X-rays is minimal and the risk to your baby probably negligible. However, dentists will take every precaution to minimize your radiation exposure, covering you with a leaded apron before the X-rays.