Dental Work and Joint Replacement: Before Surgery, After Surgery and the Antibiotic Question

Your teeth come up in a joint replacement workup for a reason. Here is what to sort out before surgery, what to tell your dentist afterward, and why the old rule about antibiotics before every cleaning has changed.

It surprises many patients that a hip or knee surgeon asks about their teeth. The connection is infection. A replaced joint is a piece of metal and plastic with no blood supply of its own, and bacteria that reach it can be very hard to clear. The mouth is full of bacteria, and some dental problems and procedures let them into the bloodstream. So dental health becomes part of planning a joint replacement, both before and after.

This guide covers the three questions patients usually have: what to fix before surgery, how soon routine dental care can resume, and whether you need antibiotics before dental appointments for the rest of your life. Your surgeon and dentist make the final call for you.

Before surgery: get major dental work done first

The AAOS guides to both total knee replacement (OrthoInfo, 2026) and total hip replacement (OrthoInfo, 2026) recommend completing major dental work, such as tooth extractions and periodontal (gum) treatment, before your joint replacement. The reasoning is straightforward: an active dental infection is a source of bacteria, and you do not want that source active while a new implant is settling in.

What to do in practice

• Book a dental check-up early, ideally as soon as surgery is being discussed rather than in the last week.
• Tell your dentist a joint replacement is planned and ask whether anything needs treating first.
• Prioritise infections and extractions. Abscesses, broken teeth with exposed nerves and active gum disease are the problems surgeons care most about.
• Leave time for healing. If you need an extraction or gum treatment, ask your dentist and surgeon how long they want between that and the joint operation.
• Keep paperwork. Some surgical programs ask for a note from your dentist confirming you are cleared.

Cosmetic and elective dental work

Elective procedures such as whitening are not what surgeons are worried about. The focus is on infection and on procedures that disturb the gums or bone. If you are considering larger planned work, such as implants or multiple crowns, ask your surgeon and dentist whether it makes sense to complete it before the joint replacement or wait until well after.

After surgery: when routine dental care can resume

OrthoInfo's hip replacement guide says routine cleanings should be delayed for several weeks after surgery. It does not give an exact number of weeks, and practices vary, so ask your surgeon when they are comfortable with you seeing the dentist again. If you have a dental emergency in the meantime, such as a painful swelling or a broken tooth, do not ignore it; contact both your dentist and your surgical team.

The antibiotic question

For years, many people with joint replacements were told to take antibiotics before every dental visit, including cleanings. Current guidance from the dental profession is more selective.

What the ADA says

The American Dental Association's page on antibiotic prophylaxis (ADA, updated 2026) summarises its 2015 clinical practice guideline, which was based on a 2014 systematic review. That guideline concluded that, in general, preventive antibiotics are not recommended before dental procedures to prevent prosthetic joint infection, and the review found no association between dental procedures and joint infections.

The ADA also describes exceptions:

• For patients who have had complications from joint replacement surgery and need dental procedures that involve manipulating the gums or cutting the lining of the mouth, preventive antibiotics should be considered only after consulting the patient and the orthopedic surgeon.
• For patients predisposed to infection more generally, antibiotics may be appropriate, with the treating physician making the decision.

If antibiotics are thought necessary, the ADA says the orthopedic surgeon should recommend the regimen and, where reasonable, write the prescription. It encourages shared decision-making among the dentist, orthopedic team and patient instead of routine delays or automatic premedication.

What the orthopedic side says

The AAOS patient pages put it from the surgeon's side. The knee guide advises asking your surgeon whether you need preventive antibiotics before dental procedures, including cleanings. The AAOS page on infection after joint replacement (OrthoInfo, 2026) notes that your surgeon may prescribe antibiotics before dental work to protect the implant from bacteria that can enter the bloodstream.

Put together, the message is consistent: there is no blanket rule for everyone, and the person who decides for you is your orthopedic surgeon, ideally in conversation with your dentist.

Why not just take antibiotics to be safe?

It is a fair question. Antibiotics are not harmless. They can cause side effects and allergic reactions, and unnecessary use contributes to bacteria becoming resistant to them. That is why both dental and orthopedic guidance aim to reserve preventive antibiotics for people who are likely to benefit, rather than giving them to everyone by default. Never take leftover antibiotics on your own before a dental visit; besides the general risks, OrthoInfo notes that antibiotics taken before testing can mask a joint infection and make it harder to diagnose.

Daily habits that matter more than one appointment

A healthy mouth is a lower-risk mouth every day of the year, not only on dental appointment days. The practical habits are ordinary ones:

• Brush and clean between your teeth daily.
• Keep regular dental check-ups once your surgeon says routine care can resume.
• Get toothaches, swelling or bleeding gums looked at promptly instead of waiting.
• Tell every dentist you see, including a new one, that you have a joint replacement. The AAOS knee guide specifically advises this.

Getting your dentist and surgeon on the same page

Most confusion about dental care after a joint replacement comes from two professionals who never speak to each other. The patient ends up relaying half-remembered instructions between them. A short written note fixes most of that. Ask your surgeon's office to put the following on paper, and give a copy to your dentist:

• Which joint was replaced, and the date of surgery.
• Whether there were any complications, such as a wound problem or infection.
• When the surgeon is happy for routine cleanings to restart.
• Whether the surgeon wants preventive antibiotics before any dental procedures, and if so, which ones and what regimen.
• A contact number the dentist can use with questions.

If your surgeon says no antibiotics are needed, that is just as useful to have in writing. It saves a dentist who learned the older rule from prescribing them by habit, and it saves you from being turned away at a cleaning while someone tries to reach your surgeon.

Dental symptoms that should not wait

Because infection anywhere in the body is worth taking seriously when you have an implant, it helps to know which mouth problems need prompt attention rather than a wait for your next routine appointment:

• Swelling of the gum, face or jaw
• A toothache that throbs, wakes you at night or is getting worse
• Pus, a bad taste or a pimple-like bump on the gum
• A broken tooth with sharp pain
• Bleeding gums that are new or getting worse

Call your dentist about these, and tell them about your joint replacement when you do. If you also have new pain, warmth or swelling in the replaced joint at the same time, call your surgeon as well.

If you are having surgery abroad

Patients travelling for joint replacement sometimes think about combining dental and orthopedic care on one trip. If you are doing that, the order matters. Major dental work, especially extractions and gum treatment, belongs before the joint surgery with time to heal, not in the days after. Talk to the orthopedic surgeon about the plan before booking any dental procedure, and give both teams each other's details.

When you get home, bring a written summary of your joint surgery so your regular dentist knows what was done, when, and whether your surgeon wants antibiotics before dental procedures.

A short checklist

1. Dental check-up as soon as surgery is being planned.
2. Extractions, gum treatment and infections dealt with before surgery, with healing time.
3. Dental clearance note if your surgeon's program asks for one.
4. Ask your surgeon how many weeks to wait before routine cleanings.
5. Ask your surgeon, in writing, whether you need antibiotics before future dental work.
6. Tell every dentist about your implant.

Common questions

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