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INR Threshold for Extraction — NDEB AFK MCQ

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ModerateOral SurgeryINR Threshold for ExtractionNDEB AFK

The maximum recommended INR for performing simple dental extractions without modifying anticoagulant therapy in a patient on warfarin is which of the following?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: D — 4.0

Current evidence-based guidelines (SDCEP, ACCP) recommend that patients on warfarin can undergo simple dental extractions safely without dose modification if the INR is ≤4.0 (some guidelines use ≤3.5 as the threshold). Local haemostatic measures should be employed. An INR checked within 24-72 hours before the procedure is recommended. If INR >4.0, the procedure should be deferred and the patient referred back to their physician for dose adjustment.

Reference: SDCEP – Management of Dental Patients Taking Anticoagulants or Antiplatelets, 2022