Last updated: September 2026. Information for UK patients, compiled from NHS.uk, the Scottish Dental Clinical Effectiveness Programme (SDCEP), and NHS trust patient guidance. This article is general information, not personal medical advice. Always follow the guidance of your own dentist and the clinician who prescribed your medication.
TL;DR: If you take blood thinners, you can usually have a tooth out or other routine dental work without stopping your medication. UK guidance tells dentists to keep most patients on their anticoagulant or antiplatelet drug and control any bleeding in the chair. Never stop a blood thinner yourself. Always tell your dentist what you take.
Being told you need a tooth out is stressful enough. If you also take a blood thinner, the worry doubles: will you bleed too much, and should you stop the medication first? The reassuring answer, backed by the main UK dental guideline, is that most people on blood thinners have dental treatment safely without stopping their tablets at all [1]. This guide explains what UK dentists actually do, drug by drug, so you know what to expect and which questions to ask.
Can you have a tooth out on blood thinners?
Yes. For the great majority of patients, UK guidance is to continue your blood thinner and manage any bleeding with local measures during the appointment, rather than stopping or interrupting the medication [1]. The national reference dentists use is the Scottish Dental Clinical Effectiveness Programme (SDCEP) guidance, Management of Dental Patients Taking Anticoagulants or Antiplatelet Drugs, second edition, published on 14 March 2022 [2]. Although SDCEP is a Scottish body, its guidance is developed with a method accredited by the National Institute for Health and Care Excellence (NICE) and is used as the standard across the UK, including by NHS trusts in England [2].
The single most important message is this: do not stop, skip or change a dose of your blood thinner on your own before a dental appointment. Stopping the medication can be far more dangerous than a bit of extra bleeding, because it removes the protection the drug gives you against a stroke, a heart attack or a clot. Any change to your medication is a decision for your dentist and the clinician who prescribed it, not something to do by yourself.
A patient leaflet from Queen Victoria Hospital NHS Foundation Trust puts it plainly:
"Most patients taking an anticoagulant or antiplatelet do not need to alter their dose or stop this medicine before oral and maxillofacial procedures", because "in most cases, the benefit of continuing your treatment uninterrupted outweighs the risk of stopping it" [3].
Blood thinners: anticoagulants and antiplatelets
"Blood thinner" is an everyday term for two different families of medicine, and dentists treat them slightly differently. Knowing which one you take helps you follow the rest of this guide.
Anticoagulants slow down the clotting process. They include warfarin (a vitamin K antagonist) and the newer direct oral anticoagulants, often called DOACs: apixaban, rivaroxaban, dabigatran and edoxaban. These are commonly prescribed for atrial fibrillation, a previous blood clot, or a mechanical heart valve.
Antiplatelets stop tiny blood cells called platelets from sticking together. They include aspirin (when taken to protect the heart), clopidogrel, ticagrelor and prasugrel. They are common after a heart attack, a stroke, or the fitting of a coronary stent.
DOAC use in England has been rising steadily. Prescribing of these newer anticoagulants grew from 0.82% to 1.58% of the whole English population between January 2018 and February 2023, according to a large analysis of GP records [4]. In other words, taking a blood thinner is now very common, and dentists are used to treating patients who take one.
The general rules UK dentists follow
Whatever your specific medication, a few principles from the SDCEP guidance apply to almost everyone facing a procedure that can cause bleeding, such as an extraction [2].
Your appointment is usually planned for early in the day and early in the week. This is deliberate. If bleeding does need extra attention, it happens while the practice and support services are open, rather than late on a Friday [2].
Some patients must never have their medication interrupted. SDCEP is explicit that therapy should not be stopped for people with a prosthetic metal heart valve, a coronary stent, a blood clot within the past three months, or those being anticoagulated for a planned cardioversion [2]. If you are in one of these groups, tell your dentist, because the safe course is to keep going without any break.
Bleeding is controlled locally, in the chair. Dentists have several tools to settle a socket, including absorbable gauze, haemostatic packing material such as oxidised cellulose or a collagen sponge, and stitches [5]. One point often misunderstood: tranexamic acid mouthwash, sometimes assumed to be routine, is not listed in the British National Formulary's dental preparations, so NHS primary care dentists are not advised to prescribe it for dental procedures [5]. Your dentist will use the measures that are appropriate and available.
Dental treatment on warfarin
If you take warfarin, the key number is your INR, the blood test that shows how "thin" your blood is. UK guidance is that dental treatment, including extractions, can go ahead without interrupting warfarin as long as your INR is below 4 [6]. This is a strong recommendation and has not changed since the earlier edition of the guidance [6].
Timing of the test matters. Ideally your INR is checked within 24 hours before the procedure [6]. If your INR is usually stable, meaning you do not need weekly monitoring and have not had a reading of 4 or above in the past two months, a test within 72 hours is acceptable [6]. Your dentist wants a recent result they can rely on.
If your INR comes back at 4 or above, the picture changes. The dentist will postpone invasive treatment and contact your anticoagulation service or GP, because treatment should wait until your INR is safely below 4 [6]. This is a safety step, not a refusal to treat you.
One extra thing to mention at your appointment: some antibiotics can interact with warfarin and push your INR up. If you are prescribed antibiotics around the time of dental work, your dentist and anticoagulation team will be mindful of this [6].
Dental treatment on DOACs (apixaban, rivaroxaban, dabigatran, edoxaban)
DOACs do not need an INR test, so management is based on how much bleeding the procedure is likely to cause rather than a blood result [7].
For a low bleeding-risk procedure, such as a simple extraction of one to three teeth, the guidance is to treat you without any change to your DOAC at all [7]. You take your tablets exactly as normal.
For a higher bleeding-risk procedure, such as multiple or surgical extractions, your dentist may advise a small, temporary adjustment on the day, always discussed and agreed with you first [7]. The exact advice depends on the drug:
| DOAC | Usual dosing | Higher-risk procedure advice |
|---|---|---|
| Apixaban | Twice daily | Miss the morning dose; take the evening dose at the usual time, no sooner than 4 hours after bleeding is controlled [7] |
| Dabigatran | Twice daily | Miss the morning dose; take the evening dose at the usual time, no sooner than 4 hours after bleeding is controlled [7] |
| Rivaroxaban | Once daily | Delay the morning dose; take it 4 hours after bleeding is controlled, then resume normal timing the next day [7] |
| Edoxaban | Once daily | Delay the morning dose; take it 4 hours after bleeding is controlled, then resume normal timing the next day [7] |
Two things are worth understanding here. First, this is a delay or a single missed dose, never a decision to stop the drug, and it is made by your dentist, not by you [7]. Second, SDCEP is honest that this specific advice is a cautious, best-practice recommendation based on limited published evidence for DOACs and dental surgery, rather than settled certainty [7]. It remains the current authoritative UK position, but your dental team will tailor it to you.
If you are on a DOAC while waiting for a cardioversion, that is one of the situations where anticoagulation is not interrupted at all [2].
Dental treatment on antiplatelets (aspirin, clopidogrel and others)
For antiplatelet medicines the message is simpler and firmer: continue them without interruption [8]. This applies whether you take a single antiplatelet such as aspirin or clopidogrel, or two of them together, known as dual antiplatelet therapy. It is a strong recommendation, because stopping these drugs carries a serious risk of a clot forming, including in a stent [8].
To manage the fact that bleeding can be a little more stubborn, your dentist may take a staged approach for bigger jobs. On aspirin, for example, they might treat a limited area first, such as one extraction site, check that it settles, and consider spreading treatment across more than one visit, alongside stitches and packing [8]. On clopidogrel, ticagrelor or dual therapy, they will anticipate that bleeding "may be prolonged (up to an hour)" and plan accordingly, again keeping you on your medication throughout [8].
Coronary stents are a special case. People who have had a stent fitted usually need dual antiplatelet therapy for up to 12 months, and this must not be interrupted without cardiology approval, given the danger of the stent clotting [8]. If this is you, your dentist will work around the medication, not ask you to pause it.
What if you take a blood thinner and an antiplatelet together?
Some people take a combination, for example an anticoagulant plus aspirin or clopidogrel. Here UK guidance deliberately avoids a one-size-fits-all rule. Instead, SDCEP advises the dentist to consult the clinician who prescribed your medication to weigh up the bleeding risk of your particular combination [9]. The guidance also notes that some patients are only on such a combination for a few weeks, so it may be sensible to delay non-urgent dental treatment until the regimen changes [9].
SDCEP is unambiguous about who decides: your "medication should not be stopped prematurely or interrupted without prior discussion and written advice from" your cardiologist [9]. If you take a combination of these drugs, expect your dentist to liaise with your medical team before higher-risk treatment, and never to ask you to adjust anything alone.
What to expect at your appointment
Knowing the shape of the visit takes a lot of the worry out of it. Here is the typical flow for a patient on a blood thinner [2][6][7].
- A medication review. Your dentist asks exactly what you take, the dose, and, for warfarin, how stable your INR usually is. This is why it helps to bring a list of your medicines or your repeat prescription slip.
- An INR test, if you are on warfarin. This is arranged before higher-risk work such as an extraction, timed within 24 to 72 hours of treatment depending on how stable you are. DOAC and antiplatelet patients do not need this blood test.
- A sensible appointment time. Where possible, early in the day and week.
- A measured approach to treatment. For bigger procedures the dentist may treat a small area first, check the bleeding settles, and stage the work over more than one visit.
- Local measures to stop bleeding. Gauze, packing material and stitches as needed, applied before you leave.
- Clear aftercare instructions. You will be told how to look after the area at home and what to do if bleeding restarts.
Looking after the area at home
Standard post-extraction care matters even more when you take a blood thinner. Bite firmly on the gauze pad your dentist provides and keep pressure on for a sustained period. For the first day, avoid rinsing your mouth vigorously, hot drinks, alcohol, smoking and strenuous exercise, all of which can disturb the clot. Resting with your head slightly propped up on the first night can help.
If bleeding does not settle after firm, continuous pressure on a clean gauze pad, or it starts again heavily, contact your dental practice. Out of hours, NHS 111 can direct you to urgent dental care [10]. Rapidly worsening facial swelling, or any difficulty breathing or swallowing, needs urgent medical attention, so do not wait. For a fuller picture of urgent dental situations, see our guide to getting an emergency dentist in the UK and the signs of a spreading dental abscess.
What does it cost on the NHS?
Being on a blood thinner does not change what you pay. On the NHS in England, a tooth extraction falls under Band 2, which costs £76.60 as of 2026 [11]. Band 2 covers fillings, root canal treatment and extractions, among other things [11]. If you need treatments from more than one band in a single course of care, you pay only the charge for the highest band, not each one separately [11]. For the full breakdown, see our guide to NHS dental charges and the treatment bands.
Some patients get NHS dental treatment free. You qualify if you are under 18, or under 19 and in full-time education, if you are pregnant or have had a baby in the past 12 months, or if you receive certain qualifying benefits such as Pension Credit Guarantee Credit, income-related Employment and Support Allowance, or Universal Credit under an earnings threshold [12]. The NHS Low Income Scheme can also give full or partial help through an HC2 or HC3 certificate [12]. Our guide to free NHS dental treatment and who is eligible has the detail.
Privately, the clinical approach to blood thinners is identical, because the same UK guidance applies regardless of how treatment is funded. The practical differences are about access rather than protocol, for example how quickly INR testing or a specialist referral can be arranged.
When treatment might move to a hospital
Most dental work for patients on blood thinners happens perfectly safely in an ordinary practice. Occasionally, for a higher-risk case, your dentist may refer you to a hospital or specialist setting, for example if you take a complex combination of drugs, have other bleeding conditions, or need surgery likely to cause significant bleeding [2]. This is a considered safety judgement, not a sign that anything is wrong, and it means the right support is on hand. If you also live with another long-term condition such as diabetes, our guide to dental care for diabetics may help you prepare.
Frequently asked questions
Do I need to stop warfarin before a tooth extraction?
Usually no. UK guidance is that extractions can go ahead without stopping warfarin as long as your INR is below 4, checked within 24 to 72 hours beforehand [6]. Never stop warfarin yourself. If your INR is 4 or higher, your dentist will postpone treatment and speak to your anticoagulation service first.
Can I have a tooth out on apixaban?
Yes. For a simple extraction of one to three teeth, UK guidance is to treat you with no change to your apixaban at all [7]. For a more complex or surgical extraction, your dentist may advise missing the morning dose and taking the evening dose only after bleeding is controlled. That decision is made by your dentist, never by you alone.
Should I stop taking aspirin before seeing the dentist?
No. UK guidance is a strong recommendation to continue aspirin and other antiplatelet drugs without interruption for dental treatment [8]. Stopping them raises the risk of a clot, stroke or heart attack. Your dentist manages any extra bleeding with local measures such as packing and stitches rather than by pausing your medication.
What is a safe INR for a tooth extraction?
UK dental guidance allows extractions to proceed without interrupting warfarin when your INR is below 4 [6]. The test should be done within 24 hours of treatment, or within 72 hours if your INR is normally stable. An INR of 4 or above means treatment is delayed until it comes back down, arranged with your anticoagulation team [6].
How long will I bleed after an extraction if I take blood thinners?
Most bleeding settles with the gauze and local measures used at your appointment. On antiplatelet drugs, dentists expect bleeding may be prolonged, up to about an hour [8]. Keep firm pressure on the gauze, avoid rinsing and hot drinks on day one, and contact your practice if heavy bleeding does not settle.
Do I need a blood test before every dental procedure?
Only if you take warfarin or another vitamin K antagonist, which need an INR check before higher-risk work such as extractions [6]. If you take a DOAC (apixaban, rivaroxaban, dabigatran or edoxaban) or an antiplatelet such as aspirin or clopidogrel, no routine blood test is needed before dental treatment [7][8].
Can a dentist treat me if I have a heart stent?
Yes. You should stay on your antiplatelet medication, and after a stent that often means dual therapy for up to 12 months, which must not be stopped without cardiology approval [8]. Tell your dentist about the stent so they can plan the treatment around your medication and use local measures to manage bleeding.
The bottom line
If you take a blood thinner, dental treatment in the UK is designed to be safe without stopping your medication. Warfarin patients need an INR below 4, DOAC patients usually need no change for simple extractions, and antiplatelet patients stay on their tablets throughout [6][7][8]. The golden rule never changes: tell your dentist exactly what you take, and never stop or adjust a blood thinner yourself. If you are due a procedure and have not yet found a dentist you trust, you can search for a dentist near you on Dentists Closeby and get booked in with confidence.
Sources
- Management of Dental Patients Taking Anticoagulants or Antiplatelet Drugs -- SDCEP, accessed 2026-09-02
- SDCEP Dental Companion: Summary Advice and Guidance Overview -- SDCEP, 2nd edition (14 March 2022), accessed 2026-09-02
- Important information for dental outpatients taking oral anticoagulant or antiplatelet therapy -- Queen Victoria Hospital NHS Foundation Trust, accessed 2026-09-02
- Safety of direct-acting oral anticoagulant prescribing: OpenSAFELY-TPP analysis -- BJGP Open, published 12 June 2024, accessed 2026-09-02
- SDCEP Dental Companion: Managing Bleeding Risk and Haemostatic Measures -- SDCEP, accessed 2026-09-02
- SDCEP Dental Companion: Warfarin or Another Vitamin K Antagonist -- SDCEP, accessed 2026-09-02
- SDCEP Dental Companion: Direct Oral Anticoagulants (DOACs) -- SDCEP, accessed 2026-09-02
- SDCEP Dental Companion: Antiplatelet Drugs -- SDCEP, accessed 2026-09-02
- SDCEP Dental Companion: Anticoagulant and Antiplatelet Combinations -- SDCEP, accessed 2026-09-02
- Find a dentist and urgent dental care -- NHS.uk, accessed 2026-09-02
- How much will I pay for NHS dental treatment? -- NHS.uk, last reviewed 13 March 2025, accessed 2026-09-02
- Who can get free NHS dental treatment -- NHS.uk, last reviewed 11 February 2025, accessed 2026-09-02
