Pregnancy and contraception can affect your teeth and it’s all down to hormones. During pregnancy, gingivitis, or inflamed gums, usually occurs in the second trimester and presents as swelling, bleeding gums. Switch to a toothbrush with softer bristles and tell your dentist about any gum soreness or bleeding you may be experiencing. grooves and crevices and among the taste buds. This film of micro-organisms can cause bad breath as well as tooth damage and removing it takes more than just rinsing — you need to physically scrape it off. But be gentle as you don’t want to break the skin: brush back and forth along the top and sides of the tongue and then rinse your mouth and brush with water. You can follow up with a mouth-wash. Tongue-scrapers are available in chemists but a toothbrush is equally as effective.