Pregnancy and Dental Care: What's Safe, What's Not

Why dental care matters during pregnancy

• Hormonal changes cause 50–70% of pregnant women to experience gingivitis ("pregnancy gingivitis")
• Morning sickness exposes teeth to stomach acid
• Cravings can increase cavity-risk foods
• Periodontal disease is associated with preterm birth and low birth weight
• Dental emergencies don't wait for delivery

What's safe — and when

First trimester (weeks 1–13)

• Routine cleanings: yes
• Diagnostic x-rays if needed: yes (lead apron, modern digital)
• Fillings: preferably defer to second trimester if not urgent
• Elective cosmetic work: defer to after pregnancy
• Morning sickness management: yes

Second trimester (weeks 14–27) — the safest window

• All routine dental care
• Fillings, root canals, crowns
• Necessary extractions
• Periodontal treatment

Third trimester (weeks 28+)

• Routine cleaning: yes
• Emergency care only for major work
• Lying flat for extended periods is uncomfortable; short appointments preferred

Pregnancy gingivitis

• Gums bleed more easily
• Swelling and tenderness common
• Often resolves after delivery
• Can progress to periodontitis if ignored

Management:

• More frequent hygiene visits (every 3–4 months during pregnancy)
• Gentle daily flossing or interdental brushes
• Soft electric brush on sensitive mode
• Fluoride rinse

Morning sickness and teeth

Stomach acid (pH <2) erodes enamel rapidly. After vomiting:

• Rinse with water or sodium bicarbonate (1 tsp in glass of water)
• Don't brush for 30 minutes (softened enamel)
• Fluoride toothpaste to protect

Cravings and cavities

• Frequent small sugary snacks are worst for teeth
• Try to concentrate cravings with meals
• Keep a stash of tooth-friendly snacks: cheese, nuts, carrot sticks
• Regular fluoride and hygiene compensates for occasional indulgence

X-rays — actually safe

Dental x-rays deliver a tiny radiation dose (0.005 millisieverts — about 1 day's natural background). With a lead apron, less than 1% reaches the abdomen. No harm documented at these doses even during pregnancy.

Routine x-rays can be deferred to after delivery if there's no acute need. Emergency diagnostic x-rays are absolutely acceptable.

Medications

Safe during pregnancy

• Paracetamol (first choice)
• Local anaesthetic with epinephrine (standard dental doses)
• Amoxicillin, cephalexin, erythromycin (if antibiotics needed)

Avoid or use with caution

• NSAIDs (ibuprofen) after week 20
• Tetracyclines (discolours fetal teeth)
• Codeine in late pregnancy
• Nitrous oxide (debated; many clinics avoid for caution)

Always tell your dentist you're pregnant before any treatment.

Gum overgrowth (pregnancy tumour)

A benign vascular lump that develops in some pregnant women, usually from severe gingivitis. Usually resolves after delivery. Rarely needs removal during pregnancy.

Common myths

"Pregnancy causes cavities." False. Cavities come from diet and hygiene, not the pregnancy itself.

"I'll lose a tooth for every baby." False — common in older generations due to poor care. Modern dentistry prevents this.

"Dental work affects the baby." Routine dental work is safe. Untreated infection poses far more risk than treating it.

Breastfeeding considerations

Most dental procedures are compatible with breastfeeding. Specific antibiotics and drugs may need timing adjustments (pump and discard).

References

• American Dental Association — Oral health during pregnancy
• American College of Obstetricians and Gynecologists