Methotrexate and Dental Extractions: What You Need to Know

Most people taking low-dose methotrexate for conditions like rheumatoid arthritis or psoriasis can safely have a tooth extracted without stopping the medication. That said, the drug does affect how your body heals and fights infection, so dental extractions require more planning than they would for someone not on immunosuppressive therapy. The real questions are about what precautions to take, which drug interactions to watch for, and who faces genuinely elevated risk.

Why Methotrexate Makes Dental Work More Complicated

Methotrexate works by blocking an enzyme called dihydrofolate reductase, which cells need to make DNA and RNA. By disrupting that process, the drug slows down rapidly dividing cells, and that is why it helps in both cancer (at high doses) and autoimmune diseases (at low doses). It also promotes the release of adenosine, a molecule that dials down inflammation by suppressing T-cell activation and reducing certain inflammatory signals.¹

This is exactly the problem for dental extractions. After a tooth comes out, your body needs to mount a controlled inflammatory response to form a blood clot, fight off bacteria, and regenerate tissue. The cells responsible for closing that wound divide rapidly. Methotrexate, by its nature, slows that process. It also tamps down the immune response you rely on to keep the open socket from getting infected. Neither of these effects means an extraction is off the table, but they do mean both you and your dental team need to plan ahead.

Should You Stop Methotrexate Before an Extraction?

This is the question that causes the most anxiety, and the current consensus leans toward continuing the drug. Stopping methotrexate before surgery risks a disease flare, which can be more dangerous than any modest increase in post-surgical complications. A study of patients undergoing hand and wrist surgery found no statistically significant increase in wound infections among those who continued methotrexate, whether alone or combined with steroids, compared to patients taking neither drug.² That study involved 48 patients on methotrexate alone and found only three minor wound complications, a rate that was not meaningfully different from the group taking no immunosuppressants at all.

The challenge is that guidelines on this topic are frustratingly vague when it comes to dental procedures specifically. A 2024 scoping review noted that existing recommendations from scientific medical associations are “not specific to oral care,” provide “no details by type of dental procedure,” and in some cases “have not been updated for more than 10 years.”³ In practice, most rheumatologists and oral surgeons now agree that low-dose methotrexate (the kind prescribed for autoimmune conditions, typically 7.5 to 25 mg per week) should be continued through routine dental extractions. Your rheumatologist should always be consulted, but the days of automatically pausing the drug for every procedure are largely behind us.

Healing, Infection, and Dry Socket Risks

The complications that do show up after dental extractions in methotrexate patients tend to be delayed healing, local infection, and occasionally medication-related osteonecrosis of the jaw. That same scoping review found that most reported complications after invasive oral procedures involved patients with rheumatoid arthritis taking methotrexate, and tooth extractions were the procedure most commonly associated with problems.³ When complications arose, they were generally managed with extended courses of antibiotics and antiseptic rinses, and sometimes with additional minor surgical procedures to clean up the site.

Dry socket, where the blood clot that normally protects the extraction site dissolves too early, is a concern for any patient, but methotrexate’s effect on cell turnover could make it somewhat harder for a clot to stabilize and for tissue to regenerate over it. There is no large study quantifying exactly how much the drug increases dry-socket risk, which is part of the broader problem of thin evidence in this area. What is clear is that meticulous wound care matters more for methotrexate patients than for the general population. This means following aftercare instructions closely: no straws, no vigorous rinsing in the first 24 hours, and not smoking.

Jaw Osteonecrosis and Methotrexate

Medication-related osteonecrosis of the jaw (MRONJ) is a condition where a section of jawbone becomes exposed and fails to heal. It is most strongly associated with bisphosphonates (drugs used for osteoporosis) and certain cancer medications. Methotrexate is not traditionally on the list of usual suspects, but there are case reports of patients developing jaw osteonecrosis while on methotrexate alone, without any history of bisphosphonate use or cancer. Two such cases involved patients with long-standing arthritis who had been on methotrexate for years.⁴

Case reports like these do not prove methotrexate causes MRONJ on its own. Two cases out of the millions of people who take the drug is an extremely low signal. But they do raise the question of whether methotrexate might contribute to MRONJ in people who already have other risk factors, and this is where the overlap with bisphosphonates becomes important. Many patients with rheumatoid arthritis also take bisphosphonates for steroid-induced bone loss. The scoping review identified bisphosphonate use as one of the factors most commonly present in patients who experienced complications after dental extractions.³ If you are taking both methotrexate and a bisphosphonate, your dentist and prescribing physician both need to know, because the combined risk profile is meaningfully different from methotrexate alone.

Pain Relief After Extraction and Drug Interactions

One of the first practical questions after any extraction is what you can take for pain. For methotrexate patients, this is not as fraught as you might expect. Ibuprofen, one of the most common over-the-counter painkillers, has been studied specifically alongside low-dose methotrexate. A pharmacokinetic study in arthritis patients found no observable interaction between methotrexate and ibuprofen (or flurbiprofen) across any of the key measures of how the body processes the drugs.⁵ In other words, taking ibuprofen for a few days of post-extraction pain while on your regular methotrexate dose is generally considered safe. That said, nonsteroidal anti-inflammatory drugs (NSAIDs) can stress the kidneys, and methotrexate is cleared through the kidneys, so if you have any kidney issues your doctor may still prefer acetaminophen (paracetamol) as the safer choice.

Antibiotics are a different story and deserve more caution. Amoxicillin, one of the most commonly prescribed antibiotics for dental infections, has been shown to interfere with how the body clears methotrexate. In a documented case, coadministration of amoxicillin resulted in markedly elevated and prolonged methotrexate blood levels, likely because both drugs compete for the same clearance pathway in the kidneys. The patient in that case experienced renal failure, myelosuppression, mucositis, and severe toxicity.⁶ That particular case involved high-dose methotrexate used for cancer treatment, not the low doses used for arthritis or psoriasis. The interaction at low doses is likely far less dramatic, but it has not been thoroughly studied, and the theoretical mechanism (competition for kidney clearance) still applies. If your dentist wants to prescribe an antibiotic prophylactically or to treat a developing infection, make sure they know you are on methotrexate. Alternative antibiotics may be preferred, or closer monitoring may be warranted.

Who Faces the Highest Risk

Not every methotrexate patient carries the same level of risk going into an extraction. The evidence points to a few factors that stack the odds against smooth healing:

Age over 50: Older patients showed up disproportionately in complication reports, likely because of slower baseline healing and a higher burden of other medical conditions.
Bisphosphonate use: As discussed above, the combination of methotrexate and bisphosphonates appears to increase MRONJ risk more than either drug alone.
Diabetes: Poorly controlled blood sugar independently impairs wound healing and infection clearance, compounding methotrexate’s effects.
Smoking and other lifestyle factors: The scoping review specifically flagged “unhealthy lifestyle habits” as contributing factors in patients who experienced complications.
Combination immunosuppression: Patients taking methotrexate alongside biologic agents (anti-TNF drugs like adalimumab or infliximab) or corticosteroids are more immunosuppressed than those on methotrexate alone, potentially widening the window for infection.

Among conventional disease-modifying drugs used for autoimmune conditions, methotrexate was by far the most commonly represented in complication reports, appearing in about 63% of cases involving these drugs.³ That number is partly a reflection of methotrexate being the single most widely prescribed drug in its class, so it does not mean methotrexate is inherently more dangerous than alternatives. It does mean it is the drug most dental professionals will encounter, and the one most in need of clear protocols.

Blood Counts and Pre-Extraction Lab Work

Methotrexate can suppress bone marrow function, which means it can lower your white blood cell count (leaving you more vulnerable to infection), your platelet count (making it harder to stop bleeding), and your red blood cell count. Most patients on stable doses have their blood monitored regularly, but if it has been a while since your last check, getting a complete blood count before an extraction is a reasonable precaution.

Your dentist cannot interpret these results in a vacuum. A white blood cell count that looks adequate on paper may be borderline for someone about to have an open wound in their mouth, where bacterial exposure is constant. A platelet count in the low-normal range may be fine for everyday life but could mean prolonged oozing from an extraction socket. The decision about whether to proceed, delay, or adjust your methotrexate dose belongs to a conversation between your dentist and your prescribing physician. Bringing your most recent lab results to your dental appointment, or having your rheumatologist’s office fax them over, saves time and avoids guesswork.

Children and Teenagers on Methotrexate

Methotrexate is not only an adult medication. It is commonly prescribed for juvenile idiopathic arthritis, and children on the drug face similar healing concerns. A case report described a nine-year-old girl on methotrexate who had a biopsy of a lesion on her lower lip. After seven days the wound showed deficient healing, and at fifteen days it still had not closed. Complete healing occurred only after the medication was temporarily interrupted.⁷

This is a single case, not a sweeping conclusion, but it illustrates the core tension. Children generally heal faster than adults, yet the drug’s interference with cell division can override that advantage. Pediatric dentists who see children on methotrexate should be aware of the possibility of delayed healing and should coordinate with the child’s rheumatologist before any invasive procedure. Whether a brief medication pause is appropriate depends on the child’s disease activity, the complexity of the procedure, and how well the disease is controlled. These decisions cannot be made by the dental team alone.

Folic Acid and Supporting Healing

Most patients on methotrexate are already taking folic acid supplements, typically 1 mg daily or 5 mg once a week, to offset the drug’s folate-depleting effects. Since methotrexate works by blocking folate metabolism, supplementing with folic acid helps reduce side effects like mouth sores, nausea, and liver enzyme elevations without undermining the drug’s therapeutic benefit. If you are heading into a dental extraction and are not already on folic acid, it is worth raising with your rheumatologist. Adequate folate levels support the cellular processes involved in wound repair, and being deficient going into a procedure is an avoidable disadvantage.

Some clinicians use leucovorin (folinic acid) as a “rescue” agent in situations where methotrexate toxicity is a concern, though this is more common in high-dose cancer protocols than in low-dose autoimmune regimens. For routine dental extractions, ensuring you are taking your regular folic acid and are not deficient is typically sufficient.

What to Communicate Before the Procedure

The single most actionable thing you can do is make sure your dentist knows you are on methotrexate before anything happens. That sounds obvious, but medical history forms in dental offices are often filled out hastily, and methotrexate may not ring alarm bells the way a blood thinner would. Here is what your dental team actually needs from you:

Current dose and schedule: Whether you take 10 mg or 25 mg weekly matters for how much immune and healing impact to expect.
Other medications: Especially bisphosphonates, biologics, corticosteroids, and any other immunosuppressants. The combination profile changes the risk calculation.
Recent blood work: White cell count, platelet count, and liver function results help the team gauge whether it is safe to proceed.
Your rheumatologist’s contact information: If questions come up during or after the procedure, your dental team should be able to reach your prescribing doctor quickly.

You should also ask your dentist what their post-extraction protocol will be. Will they prescribe an antibiotic? If so, which one? Will they use any local measures like absorbable hemostatic packing in the socket? Are there specific signs of delayed healing they want you to watch for? Having this conversation before the extraction, not after, gives both sides time to coordinate.

When Extractions Should Be Delayed

There are situations where it makes sense to postpone. If your most recent blood work shows a significantly low white cell count or platelet count, proceeding with an extraction puts you at unnecessary risk. If you are currently experiencing a disease flare and your medications are being adjusted, the healing environment is unstable and the timing is poor. If you have an active oral infection, getting it under control with antibiotics before extracting the tooth is standard practice for any patient, and doubly important when immune function is compromised.

Emergencies are different. A severely infected tooth that is causing spreading infection or uncontrollable pain cannot wait for a perfectly optimized immune profile. In those situations, the extraction goes ahead with heightened precautions, potentially including prophylactic antibiotics (chosen carefully to avoid problematic interactions), close follow-up visits, and possibly a brief methotrexate pause coordinated with your rheumatologist. The key is that these decisions are made collaboratively, not by one provider in isolation.

One pattern worth noting in the literature is that complications, when they occurred, were “generally managed with prolonged antibiotic and antiseptic courses, and surgical interventions.”³ In plain terms, the problems that arose were treatable. Delayed healing and local infections are inconvenient and uncomfortable, but they are not the kind of catastrophic outcomes that should make you avoid necessary dental work entirely. The far greater risk, for most people, is leaving a badly damaged tooth in place and allowing chronic infection to fester.