What This Guide Covers
This guide explains how pregnancy affects your gum health and what you can do about it. It covers the hormonal mechanisms behind pregnancy gingivitis, safe treatment options, warning signs that need attention, and practical steps for protecting your oral health throughout pregnancy.
This information is for anyone who is pregnant, planning a pregnancy, or advising pregnant patients. Gum disease is one of the most common oral health changes during pregnancy. The 2017 World Workshop on Periodontal Diseases formally classified pregnancy-associated gingivitis as a distinct condition influenced by sex steroid hormones. [6] That classification reflects how common and well-documented this condition is.
Whether you are in your first trimester or approaching delivery, understanding these changes gives you the tools to keep your mouth healthy. A periodontist is a dentist who specializes in gum disease and the supporting structures of the teeth. You can learn more about what they do on the periodontics page.
How Pregnancy Changes Your Gum Health
Pregnancy hormones make your gums more sensitive to plaque bacteria, which often leads to inflammation called gingivitis. This is the single most important concept to understand about oral health during pregnancy.
The Role of Hormones
Progesterone and estrogen levels rise significantly during pregnancy. These hormones increase blood flow to the gum tissue and alter your immune system's response to dental plaque. [10] The result is that even a small amount of plaque can trigger a stronger inflammatory reaction than it would in a non-pregnant person.
Progesterone also affects the tiny blood vessels in your gums. It makes capillary walls more permeable, meaning fluid passes through them more easily. This leads to the swelling and redness that characterize pregnancy gingivitis. [10] The hormonal shift also changes the composition of bacteria under your gumline, favoring species that promote inflammation. [6]
These changes typically begin in the first trimester and peak during the second and third trimesters. In many cases, the inflammation subsides after delivery as hormone levels return to normal. However, if plaque and tartar (hardened plaque) have built up significantly during pregnancy, the gum problems may persist without professional treatment.
Pregnancy Gingivitis: Symptoms and Prevalence
Pregnancy gingivitis is the most common oral health condition during pregnancy. It affects a large portion of pregnant women, with estimates reaching up to 75%. [6] The 2017 World Workshop on Periodontal and Peri-Implant Diseases classified it under "dental biofilm-induced gingivitis modified by systemic risk factors," recognizing hormonal fluctuations as a key modifier. [7]
Common symptoms include gums that bleed when you brush or floss, redness or swelling along the gumline, and tenderness when chewing. Some women notice their gums look puffy or darker in color. These signs often appear around the second month of pregnancy. [10]
Pregnancy gingivitis is reversible. With proper oral hygiene and professional cleanings, it typically resolves. A 2014 study published in the Journal of Clinical Periodontology found that oral health education combined with professional therapy significantly reduced gingivitis in pregnant women compared to those who received no intervention. [9]
Pregnancy Granulomas (Pregnancy Tumors)
A pregnancy granuloma is a non-cancerous growth that forms on the gums during pregnancy. Despite the alarming name "pregnancy tumor," it is benign. These growths affect up to 5% of pregnant women and typically appear during the second trimester. [10]
Pregnancy granulomas are red, raw-looking nodules that usually develop between the teeth on the upper gumline. They bleed easily and can grow to one or two centimeters in diameter. They are caused by an exaggerated inflammatory response to local irritants like plaque or calculus (tarite).
In most cases, pregnancy granulomas shrink and disappear on their own after delivery. If a granuloma makes it painful to eat or bleeds heavily, a periodontist can remove it during pregnancy. Removal is a minor in-office procedure. However, granulomas sometimes return before delivery if the irritant remains.
Gum Disease and Pregnancy Complications
Research has explored a possible link between periodontal disease and adverse pregnancy outcomes such as preterm birth (delivery before 37 weeks) and low birth weight (less than 2,500 grams). A 2025 systematic review and meta-analysis found that periodontal treatment during pregnancy was associated with reduced rates of preterm birth, though the authors noted the evidence remains mixed across different study designs. [1]
A 2024 network meta-analysis of randomized controlled trials evaluated different types of periodontal interventions during pregnancy. The results suggested that scaling and root planing (a deep cleaning procedure) may help reduce the risk of adverse pregnancy outcomes compared to no treatment, though the certainty of evidence varied. [2]
A 2023 cross-sectional study of hospitalized women with high-risk pregnancies found that periodontal conditions were common in this population, suggesting an association between systemic health status and gum disease during pregnancy. [3] It is important to note that association does not prove causation. Researchers continue to study the exact mechanisms involved. The current consensus is that maintaining good gum health during pregnancy is beneficial for both the mother and baby, even as the precise causal pathways are still being investigated.
Practical Details for Pregnant Patients
Dental care during pregnancy is safe and recommended by both dental and obstetric professional organizations. Here is what you should know about timing, safety, and preparation.
Best Timing for Dental Visits
The second trimester (weeks 14 through 27) is generally considered the most comfortable time for dental treatment. By this point, the nausea of the first trimester has typically eased, and the abdomen is not yet so large that lying back in a dental chair becomes uncomfortable. [10]
That said, routine cleanings and exams can be performed during any trimester. If you have a dental emergency, such as an infection or severe pain, treatment should not be delayed regardless of trimester. Untreated dental infections pose a greater risk to the pregnancy than the treatment itself. [10]
Ideally, schedule a dental checkup early in your pregnancy or even before conception if you are planning to become pregnant. This allows your dentist or periodontist to identify and treat any existing gum problems before hormonal changes amplify them.
Safe Treatments During Pregnancy
Routine dental cleanings, exams, and X-rays with proper shielding are considered safe throughout pregnancy. The American Dental Association supports dental care during pregnancy as an important part of prenatal health. [12] Local anesthetics such as lidocaine with epinephrine are considered safe for use during pregnancy at standard dental doses. [10]
Scaling and root planing, a deeper cleaning procedure used to treat gum disease, is also safe during pregnancy. Research suggests that this procedure does not increase the risk of adverse outcomes and may provide benefits. [2] Elective cosmetic procedures are typically postponed until after delivery, not because they are dangerous, but because they are not urgent.
Always tell your dentist and periodontist that you are pregnant. Share the name and contact information of your obstetrician. This allows your dental team to coordinate care and choose medications that are appropriate for pregnancy.
Oral Hygiene Tips During Pregnancy
Good home care is the foundation of gum health during pregnancy. Brush twice a day with a soft-bristled toothbrush and fluoride toothpaste. Floss once a day. If your gums bleed when you floss, continue flossing gently. Bleeding is a sign of inflammation, and regular flossing helps reduce it over time.
If morning sickness makes brushing difficult, try rinsing your mouth with a teaspoon of baking soda mixed in a cup of water after vomiting. This neutralizes stomach acid and protects your enamel. Wait about 30 minutes before brushing to avoid scrubbing acid-softened enamel. [12]
A 2019 systematic review found that prenatal oral health care, including education and professional cleanings, may also reduce the risk of early childhood cavities in the child after birth. [4] Taking care of your mouth during pregnancy benefits your baby's future oral health as well.
What to Expect at a Dental Visit During Pregnancy
A dental visit during pregnancy follows the same general steps as a regular visit, with a few extra precautions for your comfort and safety.
Your visit will typically begin with a review of your medical history. Be sure to mention your pregnancy, your due date, any complications, and any medications or supplements you are taking. Your dentist or hygienist will adjust their approach based on this information.
Next, your dental team will examine your gums and teeth. They will check for signs of gingivitis, measure the depth of the pockets around your teeth (the small spaces between your gums and teeth), and look for any granulomas or other growths. If X-rays are needed, a lead apron with a thyroid collar will be used for shielding. Modern digital X-rays use very low radiation doses. [10]
If you are there for a cleaning, the hygienist will remove plaque and tartar from above and below the gumline. If gum disease is present, your periodontist may recommend scaling and root planing. This involves cleaning deeper below the gumline and smoothing the root surfaces so the gums can reattach. The procedure is usually done with local anesthetic and may be spread across two or more visits for comfort.
During the third trimester, the dental chair may be positioned at a slight angle to avoid pressure on the large blood vessel that runs behind the uterus (the inferior vena cava). This prevents dizziness and keeps blood flowing normally. You can also shift to your left side if you feel lightheaded.
Cost of Periodontal Care During Pregnancy
Costs for periodontal treatment vary by location, provider, and case complexity. Here are general ranges to help you plan.
A routine preventive cleaning (prophylaxis) typically costs between $75 and $200 per visit without insurance. Many dental insurance plans cover two preventive cleanings per year at little or no cost to the patient. Some plans cover an additional cleaning during pregnancy if your dentist documents pregnancy gingivitis.
Scaling and root planing, which is a deeper cleaning for active gum disease, typically costs between $150 and $350 per quadrant (one quarter of the mouth). A full-mouth treatment may range from $600 to $1,400 without insurance. Many insurance plans cover a significant portion of this treatment when medical necessity is documented.
If you do not have dental insurance, ask the dental office about payment plans or sliding-scale fees. Some community health centers offer reduced-cost dental care for pregnant patients. Medicaid covers dental care for pregnant women in many states, though covered services vary by state.
When to See a Periodontist
A general dentist can manage mild pregnancy gingivitis in most cases. You should consider seeing a periodontist when symptoms go beyond routine inflammation.
See a periodontist if your gums bleed heavily or frequently despite good brushing and flossing habits. Persistent bleeding that does not improve after a professional cleaning may indicate a more advanced form of gum disease that requires specialized treatment. [11]
You should also seek a referral if you notice a granuloma that is growing, painful, or interfering with eating. While these growths are benign, a periodontist can evaluate whether removal is needed before delivery.
If your general dentist measures periodontal pockets deeper than 4 millimeters, or if they see signs of bone loss on X-rays, a periodontist can provide a more thorough evaluation and treatment plan. Women with a history of gum disease before pregnancy are at higher risk for progression during pregnancy and may benefit from specialist monitoring. [3]
Conditions that make your pregnancy high-risk, such as gestational diabetes or preeclampsia, may also increase the importance of periodontal care. A 2023 study of hospitalized women with high-risk pregnancies found a high prevalence of periodontal conditions in that group. [3] Coordinating care between your obstetrician and a periodontist ensures both your systemic and oral health are being managed together.
Find a Periodontist Near You
If you are pregnant and experiencing gum bleeding, swelling, or other signs of gum disease, a periodontist can provide specialized evaluation and treatment. You can search for a qualified periodontist in your area on the periodontics page to find a provider who is experienced in managing gum conditions during pregnancy.
Search Periodontists in Your Area