During pregnancy, if it is a simple filling, it is possible and there is no effect on the pregnancy. However, it is still not recommended to fill teeth only when it involves taking dental films, damaging nerves or applying medication. Since pregnant women are in a special period during pregnancy, they should be careful not to touch things that may affect the development of the fetus. If there is only a cavity and you want to simply fill the tooth, it is possible. Without other symptoms, it is possible to pay more attention to oral hygiene in general and wait until after delivery to get a filling. If you need to use medication during the filling process, such as anesthetics and painkillers, you must consult with your obstetrician and dentist to see if it will have any effect on the fetus, and only if it does not, you can use it. In addition, it is also important to note that dental films should not be taken to expose X-rays. Although it is said to be local radiation, the radiation dose is very small, but it is best for pregnant women to avoid exposure. If it is necessary to shoot, pregnant women can be given protective clothing to shoot, especially pay attention to the protection of the abdomen. Finally, it is important to fully inform the dentist of your situation during the filling process and to communicate in a timely manner if there is any discomfort. Therefore, whether a pregnant woman can have a filling or not should only be done after the dental surgeon’s assessment. However, it is still recommended to avoid dental treatment during pregnancy as much as possible.