Periodontal Disease and Pregnancy
Researchers have shown that periodontal disease in expectant mothers actually exposes their unborn child to many different risks; particularly if they also happen to be diabetes sufferers.
Periodontal disease generally begins with a bacterial infection in the gum (gingival) tissue, which progressively destroys the tissue and the underlying bone. If left untreated, the bacterial infection causes an inflammatory reaction in the body, which can significantly deepen the gum pockets (space between the teeth and gums) and forces the gum and jawbone to recede. Eventually, the progressive nature of periodontal disease causes the teeth to become loose and unstable, and eventually fall out.
Pregnancy causes many hormonal changes which increase the risk of the expectant mother to develop gingivitis (inflammation of the gum tissue) and periodontal disease. These oral problems have been linked in many research studies to preeclampsia, low birth weight of the baby and premature birth. Expectant women should seek immediate treatment for periodontal disease in order to reduce the risk of pre-natal and post-natal complications.
Reasons for the Connection
There are many different reasons why periodontal disease may affect the health of the mother and her unborn child:
- Prostaglandin – Periodontal disease appears to elevate levels of prostaglandin in mothers who are suffering from the more advanced forms of the condition. Prostaglandin is a labor-inducing compound found in one of the oral bacteria strains associated with periodontitis. Elevated levels of prostaglandin can cause the mother to give birth prematurely and deliver a baby with a low birth weight.
- C – reactive protein (CRP) – This protein, which has been previously linked to heart disease, has now been associated with adverse pregnancy outcomes including preeclampsia and premature birth. Periodontal infections elevate C-reactive protein levels and amplify the body’s natural inflammatory response. Periodontal bacteria may enter the bloodstream causing the liver to produce CRP which leads to inflamed arteries as well as possible blood clots. These inflammatory effects can then lead to blocked arteries causing strokes or heart attacks.
- Bacteria spread – The bacteria which colonize in the gum pockets can readily travel through the bloodstream and affect other parts of the body. In pregnant women, research has found that oral bacteria and associated pathogens have colonized in the internal mammary glands and coronary arteries.
Diagnosis and Treatment
There are many safe, non surgical treatment options available for pregnant women. It is of paramount importance to halt the progress of periodontal disease in order to increase the chances of a safe and healthy delivery.
Initially, the dentist will assess the exact condition of the gums and jawbone in order to make a precise diagnosis. Scaling and root planing are two common non-surgical procedures used to rid the tooth-root surfaces of calculus (tartar) and remove the bacterial toxins from the gum pockets.
The advantages to the pregnant woman are plentiful. The risks of pregnancy complications caused by periodontal disease are reduced by as much as 50%, and these treatments will alleviate many unpleasant and harmful effects associated with gingivitis and periodontal infection.
Dentists in Waterloo, ON can provide dental education and recommendations to the pregnant women on effective home care which can reduce risks that may affect her and/or her child’s health. Risks of periodontal disease can be vastly reduced by proper home care, smoking cessation, dietary changes and the ingestion of supplementary vitamins.
If you have any questions or concerns about periodontal disease and its affect on pregnancy, please ask your dentist.
How Pregnancy Affects Gum Health
Pregnancy brings hormonal changes that affect many parts of the body, including the gums. Many pregnant patients notice their gums become more tender, swell more easily, and bleed when brushing. This condition is called pregnancy gingivitis and affects about half of pregnant women to some degree. It usually appears in the second month and peaks around the eighth month before improving after delivery.
More concerning is research showing that pregnant women with chronic periodontitis (more advanced gum disease with bone loss) may have higher risk of certain pregnancy complications, including preterm birth and low birth weight. The connection appears to involve inflammatory chemicals from gum disease entering the bloodstream and influencing pregnancy biology. The evidence is not conclusive — treating gum disease during pregnancy has not yet been shown definitively to reduce these complications — but the association is real enough that prenatal dental care is now considered an important part of overall prenatal health.
Routine dental care, including cleanings and exams, is safe and important throughout pregnancy. Many medical organizations recommend pregnant patients have at least one dental visit during pregnancy, particularly in the second trimester when most patients are comfortable and the risk of any pregnancy complications is lowest.
What Pregnant Patients Should Watch For
Pregnant patients commonly experience certain oral changes. Tell us about any of these:
- Gums that bleed when brushing or flossing
- Gums that look red, swollen, or feel tender
- Persistent bad breath that did not exist before pregnancy
- A small benign growth on the gum (sometimes called a pregnancy tumour or pyogenic granuloma) — looks alarming but usually harmless and may resolve after delivery
- Morning sickness causing acid exposure to teeth — protect enamel by rinsing with water rather than brushing right after
- Increased cravings for sweet or acidic foods raising cavity risk
- Dry mouth from changes in saliva flow
- Loose teeth from pregnancy-related ligament changes
- Difficulty maintaining home care because of nausea or fatigue
Most of these settle after pregnancy. Severe symptoms or rapidly progressing gum disease warrant immediate attention; bring concerns to your next dental visit or call sooner if symptoms worsen.
What Dental Care During Pregnancy Looks Like
Routine cleanings and exams are safe throughout pregnancy. The second trimester (weeks 14 to 28) is generally the most comfortable for longer or more involved appointments. The first trimester (weeks 1 to 13) is sometimes avoided for non-urgent treatment because of the higher risk of natural pregnancy complications during this period, though urgent care is provided when needed. The third trimester is fine for most routine care but lying back for long periods may be uncomfortable later in pregnancy.
X-rays during pregnancy are limited to what is necessary. Modern digital dental x-rays use very low doses and are well-shielded with a lead apron and thyroid collar, but non-urgent imaging is deferred. Urgent x-rays for symptoms like severe pain or infection are taken with the lead-equivalent apron in place. Most medications used in dentistry (most local anaesthetics, many antibiotics) are safe during pregnancy; some (certain antibiotics, NSAIDs) are avoided. Your dentist coordinates with your obstetrician for any care that has medication considerations.
Treatment of active gum disease during pregnancy is safe and encouraged. Deep cleaning (scaling and root planing) under local anaesthetic is well-tolerated and reduces inflammation. Treatment of cavities or other concerns is appropriate when needed. Elective cosmetic procedures are usually deferred until after delivery.
What This Means for Your Care at Trillium
Trillium welcomes pregnant patients and encourages prenatal dental visits. Let us know when you call to book if you are pregnant or planning pregnancy, and we will schedule appropriately. Pregnancy itself does not affect dental fees — we follow the current Ontario Dental Association Suggested Fee Guide for all services. Most private dental insurance plans cover pregnancy-related dental care under their normal benefits framework. CDCP covers preventive and treatment services.
Coordination with your obstetrician is part of comprehensive care. We share information with their office (with your consent) when medication coordination or specific timing of procedures requires it. Tell us about any pregnancy complications, gestational diabetes, or medications added during pregnancy so we can adjust care planning accordingly.
Frequently Asked Questions
Should I delay dental care until after delivery?
No. Routine cleanings and necessary treatment during pregnancy are safe and recommended. Untreated dental problems can worsen, and some research suggests untreated gum disease may affect pregnancy outcomes. The second trimester is often the most comfortable time for longer appointments.
Is local anaesthetic safe?
Yes. Most local anaesthetics used in dentistry are safe during pregnancy. Tell us you are pregnant and we will use medications with the safest track records and adjust technique as needed.
Will pregnancy ruin my teeth?
No. The old saying about losing a tooth for each baby is not true. Pregnancy hormones can affect gum health and increase risk of gingivitis, but with regular dental care and good home habits, pregnancy itself does not damage teeth. The challenge is often morning sickness exposing teeth to stomach acid; rinsing with water after vomiting (rather than brushing right away) protects enamel.
My gums bleed all the time now. Is that normal during pregnancy?
Bleeding gums during pregnancy are very common (pregnancy gingivitis) and usually settle after delivery. They still benefit from extra attention — keep up regular brushing and flossing even though it feels uncomfortable, schedule a cleaning visit, and bring concerns to our attention.
Can dental problems affect my baby?
Possibly, indirectly. Some research suggests untreated gum disease may be associated with preterm birth or low birth weight. The evidence is not yet definitive, but treating gum disease during pregnancy is considered worthwhile from both a maternal and possibly fetal-health standpoint.
What about after delivery — should I bring my newborn in?
Yes. Most dental and pediatric associations recommend the first dental visit by age one or within six months of the first tooth coming in. The first visit is mostly about establishing comfort with the office, looking at the baby's mouth, discussing early care, and answering parent questions.