Do I need antibiotics before dental work if I have an artificial joint?

Short answer: For most people with a hip or knee replacement, you do not need antibiotics before routine dental work.¹^,²

Why people worry

A long time ago, doctors often gave antibiotics before dental care to try to protect new joints. That seemed smart because dental work can let tiny amounts of mouth bacteria into the bloodstream. But newer studies and official guidelines show this is usually not needed for most people.³^,⁴

What the research shows

Big studies comparing many patients found no clear link between normal dental procedures and infections in artificial joints. They also did not show that giving antibiotics beforehand lowers the risk for most people. Because of this, major dental and orthopedic groups recommend not giving antibiotics to everyone with a joint replacement.¹^,²

When antibiotics might still be used

There are a few special cases where your dentist and surgeon might choose antibiotics: – If you had a previous infection in the artificial joint. – If your joint surgery was very recent and the wound is still healing. – If you have a weak immune system or other serious medical problems.

In these situations the dentist and orthopedic surgeon should talk and agree on a plan, and then write it in your chart.²

Simple way to explain it to patients

Try this analogy: your mouth is like a busy street. Brushing, chewing, and everyday life send tiny amounts of bacteria into your blood all the time. One dental visit is usually just another car on the road — it doesn’t make the street much busier. That is why one appointment rarely raises the risk for a healed joint.

If a patient is worried, say: “I understand — I’d want to protect my joint too. The evidence shows antibiotics aren’t needed for most people, but we can check your records and call your surgeon if you’d like.” That shows you care and gives a clear next step.

Quick takeaways for patients and staff

• Always tell your dental team you have a joint replacement and if you’ve had a prior joint infection.¹
• Most routine cleanings and simple dental procedures do not need antibiotics.¹^,³
• If you or your surgeon want extra caution, the dentist and orthopedist can make and record a plan together.²
• Avoid unnecessary antibiotics — they can cause bad reactions and help germs become resistant to medicine.⁵