Acute odontogenic pain — Frequently asked questions (FAQ)
1) What does this algorithm cover?
The algorithm guides the pharmacological management of acute odontogenic pain and postoperative dental pain, including conditions such as pulpitis, periapical abscess, pericoronitis and pain following third molar surgery. Treatment selection depends on pain intensity, the presence of an inflammatory component and the patient’s characteristics.
2) Does analgesia replace definitive dental treatment?
No. Analgesia helps control symptoms but does not replace dental treatment of the underlying cause. Whenever possible, assessment by a dentist or oral medicine specialist should be arranged for definitive treatment, particularly in cases of pulpitis, periapical abscess or pericoronitis.
3) What is the first-line treatment for mild to moderate pain?
For mild to moderate pain without a marked inflammatory component, paracetamol is a first-line option. In adults, the maximum dose of 1 g per dose and the usual maximum daily dose of 4 g/day should be respected, reducing this to approximately 2 g/day in people with alcohol dependence or an increased risk of liver toxicity.
4) When should an NSAID be used?
Non-steroidal anti-inflammatory drugs (NSAIDs) are particularly useful when there is a marked inflammatory component, such as in pericoronitis, postoperative pain associated with swelling or inflammatory odontogenic pain. They should be avoided or used with caution in patients with kidney disease, bleeding risk, peptic ulcer disease, heart failure, anticoagulant therapy or specific contraindications.
5) What should be done for moderate to severe pain?
For moderate to severe pain, the combination of paracetamol plus an NSAID may provide better analgesic control than either medicine used alone, provided there are no contraindications. Treatment should be individualised and accompanied by referral for definitive dental care.
6) When should a weak opioid be considered?
A weak opioid, such as codeine or tramadol, may be considered when pain remains inadequately controlled despite optimised treatment with paracetamol and/or an NSAID. It should be used for the shortest possible duration, avoiding prolonged use and assessing the risks of sedation, constipation, dependence, drug interactions and individual contraindications.
7) What approach should be used in children?
In paediatric patients, paracetamol is generally considered first-line treatment. For more severe pain or pain with an inflammatory component, ibuprofen may be considered according to age, body weight and contraindications. Acetylsalicylic acid is contraindicated in children because of the risk of Reye syndrome. Opioids should be avoided or reserved for highly selected situations following specialist assessment.
8) What approach should be used during pregnancy and breastfeeding?
During pregnancy and breastfeeding, paracetamol is the analgesic of choice. NSAIDs are contraindicated during the third trimester and should be used cautiously at other stages, according to clinical assessment. Opioids may be considered as second-line treatment for short periods when necessary, after weighing maternal and fetal risks.
9) When should severe odontogenic infection be suspected?
Signs requiring urgent assessment include fever, progressive facial cellulitis, severe trismus, dysphagia, odynophagia, breathing difficulty, airway compromise, marked malaise, immunosuppression or rapid deterioration. In these situations, analgesia alone is insufficient and urgent referral may be required.
10) Are antibiotics indicated for the treatment of dental pain?
They should not be used solely for pain control. Antibiotics are indicated when there is suspected bacterial infection with local or systemic spread, such as cellulitis, fever, tender lymphadenopathy, trismus or signs of dissemination. In pulpitis without signs of spreading infection, definitive treatment is dental rather than antibiotic.
11) What advice should be given to the patient?
The patient should be informed about the correct dosage, limited treatment duration, warning signs and the need for definitive dental treatment. They should avoid duplicating medicines, particularly combination products that already contain paracetamol, and seek urgent care if progressive swelling, fever, trismus, dysphagia or breathing difficulty develops.
