Yes. In the past, evidence linked dental or periodontal disease to preterm birth, but newer studies have failed to replicate these findings. Still, good dental hygiene is important to general health and recommended in pregnancy, so make — and keep — your teeth cleanings. If x-rays are indicated, you shouldn’t have a problem, James says. They’re safe, especially if the hygienist uses a belly shield. Be sure to let your dentist’s office know you’re pregnant so they can make treatment decisions that minimize any risks to you or baby.