It is important to get proper dental care during pregnancy. With pregnancy come hormonal changes and with these changes, women are more prone to conditions such as periodontal disease and pregnancy gingivitis. Regular dental checkups and good hygiene practices at home can keep your teeth and gums free of tartar and plaque and help to prevent or reduce the effects of pregnancy gingivitis and periodontal disease.
If morning sickness is making it difficult for you to brush your teeth you can ask your dentist to recommend a bland toothpaste as to not trigger it. At the very least you should rinse your mouth with water or a mouth wash as morning sickness can damage the teeth and gums.