Short answer: Yes, a dental filling can be done during pregnancy. According to sources such as ACOG, the ADA and the NHS, cavity treatment is among the routine procedures considered appropriate in pregnancy. The most comfortable period for fillings that can be postponed is generally the second trimester (weeks 14–27); if there is pain or infection, treatment is not delayed. Local anesthesia can be used at an appropriate dose, composite is generally preferred for a new filling, and your obstetrician and dentist evaluate the timing together.
A cavity noticed during pregnancy brings the same question to the minds of many expectant mothers: can a dental filling be done during pregnancy, or is it more correct to wait until after birth? The shared view of international dental and obstetric organizations is that necessary dental treatments can also be done in pregnancy. Cavity treatment is at the top of these necessary procedures. In this article, we cover in plain language which period is more comfortable for a filling, how local anesthesia is considered, the choice of filling material and the possible consequences of delaying treatment.
Can a dental filling be done during pregnancy?
Yes, a dental filling can be done during pregnancy; cleaning out the cavity and placing a filling is among the routine procedures considered appropriate in pregnancy. Sources such as the American College of Obstetricians and Gynecologists (ACOG), the American Dental Association (ADA) and the UK National Health Service (NHS) emphasize that pregnancy alone is not a reason to postpone dental treatment. That said, every pregnancy is unique. Your obstetrician and your dentist decide on the timing of treatment by evaluating together your week of pregnancy, your general health and the depth of the cavity.
Some changes take place in the mouth during pregnancy. The rise in hormones can make the gums more sensitive, nausea and vomiting can make the oral environment acidic, and frequent small meals can lengthen the time the teeth are in contact with sugar. For this reason, a small cavity that was previously quiet can progress quickly in pregnancy. When a dental filling during pregnancy is planned without delay, in most cases it is completed in a single session with a short procedure.
For a broader framework on oral health in pregnancy, you can also look at our article on what to keep in mind for dental treatment during pregnancy.
Which trimester is more suitable?
The most comfortable period for fillings that can be postponed is generally the second trimester, that is, roughly between weeks 14 and 27. In this period, nausea has eased in most expectant mothers, the early weeks of intense organ development are behind, and the belly has not yet grown large enough to make sitting in the chair for a long time difficult.
- First trimester (weeks 1–13): Nausea, fatigue and smell sensitivity are common. Non-urgent procedures are generally left to the second trimester; however, if there is pain or infection, treatment is not delayed.
- Second trimester (weeks 14–27): This is often the preferred period for planned fillings, tartar cleaning and similar procedures.
- Third trimester (week 28 and after): Treatment can still be done; however, since lying on the back for a long time can press on the large vessels and cause dizziness, sessions are kept short and the chair is tilted slightly to the left side.
This distinction is not a list of prohibitions but a suggestion for comfort and planning. If a deep cavity has started to ache or there is swelling in the tooth, you need to see a dentist whatever the week.
Is local anesthesia used during a filling?
Yes, local anesthesia can be used at an appropriate dose in dental treatment during pregnancy and is considered compatible with pregnancy by generally accepted sources. Local anesthesia numbs only the area where the procedure is done, and the amount used is quite small. Keeping pain under control reduces the expectant mother's tension and stress response during the procedure, which is desirable for both mother and baby.
Your dentist decides which anesthetic agent and in what amount will be used. At the appointment, be sure to mention your week of pregnancy, any blood pressure, blood sugar or heart-related conditions you have and the medications you take. Your dentist can contact your obstetrician when needed. If you are curious about how long numbness lasts, our article explaining when dental numbness wears off may be useful. It is wise to postpone hot drinks and food until the numbness wears off so that you do not bite your cheek and lip.
Which type of filling is preferred?
When a new filling is needed in pregnancy, a tooth-colored composite filling is generally preferred. Composite is a material that bonds to the tooth by adhesion, is aesthetic and today offers sufficient durability for most cavities. For detailed information about different filling materials and application steps, you can read our article on types of fillings and application steps.
The question of amalgam fillings in pregnancy
Amalgam is a silver-colored filling material that contains mercury. In an advisory published in 2020, the US Food and Drug Administration (FDA) recommended that, where appropriate, materials other than amalgam be preferred in some higher-risk groups such as pregnant and breastfeeding women. For this reason, placing new amalgam during pregnancy is generally not recommended.
A different approach applies to sound amalgam fillings that are already in your mouth. The same advisory states that removing amalgam fillings in good condition solely because of the material is not recommended, because brief vapor and particles can be produced during the removal process. In pregnancy, unless there is a real necessity such as a fracture or decay, such a removal is generally considered more suitable to leave until after birth. If you are curious about the precautions taken when removing amalgam, the details are in our article on the amalgam filling removal process.
When is a temporary filling considered?
In a very deep cavity, planning the definitive treatment can take time because of the proximity to the nerve. In such cases, the dentist may first place a temporary filling to protect the tooth and reduce sensitivity, and plan the permanent treatment for a more comfortable period. This decision is made at the exam according to the condition of the tooth.
The risks of delaying a cavity
Leaving a cavity waiting until birth makes treatment harder in most cases and increases the chance of a more extensive intervention in pregnancy. A cavity starts in the enamel layer and over time progresses to the dentin and then to the nerve of the tooth. This progression can speed up because of the changed diet and oral environment in pregnancy.
- Pain and lost sleep: A cavity that reaches the nerve can cause throbbing pain that gets worse especially at night.
- Infection: An advanced cavity can form an abscess at the tip of the tooth root. Infection is a condition that should not be left waiting in pregnancy, and its treatment can take longer than a simple filling.
- Need for more extensive treatment: A problem that could have been solved with a small filling can reach the point of requiring a root canal or tooth extraction.
- Lack of time during newborn care: In the first months after birth, finding time to go to the dentist becomes hard for most parents.
In addition, the presence of untreated cavities in the mouth is associated with the possibility that cavity-causing bacteria may later pass to the baby through saliva. A mother's good oral health also indirectly contributes to the baby's dental health in the first years.
What should you keep in mind before the appointment?
A few small preparations before the appointment make the dental filling process in pregnancy much more comfortable. You can consider these points:
- Say that you are pregnant and which week you are in. This information is decisive for anesthesia and possible X-ray decisions.
- Bring a list of all the medications and vitamins you take. It is important to mention everything, including prenatal vitamins.
- Share any special warning from your obstetrician. Conditions such as high blood pressure, gestational diabetes or high-risk pregnancy follow-up can affect planning.
- Choose the appointment time according to your nausea. If you have morning sickness, afternoon hours may be more comfortable.
- Come after eating a light meal. Blood sugar can drop on an empty stomach, while a very heavy meal can increase nausea.
- Wear comfortable clothes and ask for a break if needed. It is perfectly normal to want to change position, drink water or take a short break during the procedure.
Whether an X-ray is needed is also a frequently asked question. An X-ray before a filling is not always mandatory; if it is considered necessary, it can be taken with a lead apron and thyroid collar, and the radiation dose of a dental X-ray is very low. In the meantime, those considering braces or clear aligner treatment in pregnancy need a separate evaluation; you can find this topic in the article on braces and clear aligners during pregnancy.
Exam for a filling during pregnancy in Ankara
If you have noticed a new sensitivity, a color change or food getting stuck in a tooth, planning an exam is a good start, whatever week of pregnancy you are in. At our polyclinic in Park Oran Ofis in Oran, Çankaya, the condition of the cavity is evaluated, and the timing of treatment is planned in harmony with your obstetrician when needed. For appointment and directions, you can visit our contact page.
Frequently asked questions
Is a dental filling during pregnancy harmful?
According to generally accepted sources, having a filling in pregnancy is an appropriate and necessary treatment. As with every medical procedure, personal circumstances matter; for this reason, your week of pregnancy and health history are evaluated at the exam. An untreated cavity progressing into an infection is often a bigger problem.
Can a filling be done in the first three months?
Non-urgent fillings are generally planned for the second trimester. However, if there is pain, swelling or a sign of infection in the first three months, treatment is not delayed. The decision is made according to the joint evaluation of your obstetrician and your dentist.
Should I have my existing amalgam fillings removed while pregnant?
Removing amalgam fillings in good condition solely because of the material is generally not recommended; brief vapor and particles can be produced during removal. Unless there is a fracture or decay underneath, this procedure is often left until after birth. If a filling needs to be replaced, your dentist determines the appropriate method.
Can I get a dental filling while breastfeeding?
Yes, most treatments involving fillings and local anesthesia can be done during the breastfeeding period. It is enough to tell your dentist that you are breastfeeding; if there is anything specific about your breastfeeding routine after the procedure, you will be informed separately.
Is an X-ray needed before a filling?
An X-ray is not needed for every filling. When it is necessary to see the depth of the cavity, it can be taken using a lead apron and thyroid collar; the radiation dose of a dental X-ray is very low. The need is determined at the exam.
