do i need antibiotics after a tooth extraction

Many patients expect a strip of antibiotics after every extraction, and in India they are often handed out by habit. Current mainstream dental advice is more careful: antibiotics are for infection or specific risk, not for routine healing.

Why they are not routine

• The mouth heals well on its own. A healthy socket protected by a good clot rarely becomes infected.
• Antibiotics do not treat pain. The ache after an extraction is from the wound, not from bacteria. A painkiller handles that.
• Side effects are common. Upset stomach, loose motions, acidity, rashes, thrush and, rarely, serious allergic reactions.
• Resistance is real. Every unnecessary course makes bacteria harder to treat later, for you and for everyone around you.

When your dentist may prescribe them

• Spreading infection. Facial swelling, fever, swollen glands or pus. Removing the cause (the tooth) is the main treatment; antibiotics support it. See our page on dental abscess.
• Surgical extractions. Some impacted wisdom teeth and bone-removal cases, at the surgeon's judgement. This is decided case by case, not automatically.
• Medical conditions. Poorly controlled diabetes, chemotherapy, long-term steroids, organ transplants, or radiotherapy to the head and neck.
• Certain heart conditions. A few patients, for example those with an artificial heart valve or a past heart valve infection, may need a single dose before the procedure. This is decided together with your cardiologist. Most heart patients, including those with stents, do not need it.

Things antibiotics will not fix

Dry socket, where the clot is lost, is not mainly an infection. It needs the socket cleaned and dressed by your dentist; tablets alone will not settle it. Our page on alveolar osteitis explains why. Equally, antibiotics will not make up for smoking, spitting or using a straw in the first days.

If you are prescribed a course

1. Take it exactly as directed, at evenly spaced times.
2. Finish the course unless your dentist tells you to stop.
3. Tell your dentist about any allergy before the prescription is written, especially to penicillin.
4. Stop and call if you develop a rash, swelling of the lips or face, or difficulty breathing. That last one needs a hospital emergency department.
5. Do not save leftover tablets for next time or share them with family.

Signs that infection has set in

Swelling that keeps growing after day three, pus or a foul discharge, fever, or pain that worsens rather than eases. Call 8484 990 678 so the socket can be checked. If swelling spreads towards your eye or neck, or you have trouble swallowing or breathing, go to a hospital emergency department straight away; our emergency dentist page lists the warning signs.

Whether you need antibiotics is a clinical decision for your dentist, based on your health and the extraction. Difficult cases are planned with our oral and maxillofacial surgery department.