IV (intravenous) sedation for dental treatment

IV sedation gives sedative medicine through a cannula. You remain conscious, and suitability, monitoring and recovery are planned through an individual assessment.

Approved by Dr Rob Endicott

Last reviewed September 2026

General information, not personal medical or dental advice.

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What it is

Intravenous (IV) sedation gives sedative medicine through a small cannula, commonly in the hand or arm. You remain conscious and able to respond to the team; drowsiness and reduced memory are common, but experiences vary.

Sedation does not replace local anaesthetic when numbing is needed. UK standards require appropriate assessment, trained staff, monitoring, consent, recovery arrangements and discharge advice.

Who it tends to suit

IV sedation may be considered for dental anxiety, a strong gag reflex or treatment that would otherwise be difficult to complete. The decision is individual and should include non-drug approaches and other appropriate options.

Things to know

IV sedation normally requires a responsible adult escort and restrictions after treatment. Follow the treating team’s instructions about eating, drinking, medicines, driving, work, caring responsibilities and how long someone should stay with you; requirements depend on your care and local protocol.

Things you can try

Ask about escort and aftercare requirements before booking, so you can plan safely.
Tell the sedation team if needles worry you, so the cannula step is planned gently.
Ask the practice to explain their assessment and monitoring, so you know what to expect.

Sources

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Inhalation sedation (gas and air)
Inhalation sedation uses nitrous oxide and oxygen breathed through a small nosepiece. You remain conscious, and suitability is decided through an individual assessment.
How to choose between support options
Communication changes, psychological support, sedation and general anaesthetic are not a ladder you must climb — they are tools that can be combined around you.
Fear of dental injections
Fear of dental injections is common. Telling the team what worries you allows them to discuss pacing, communication and comfort options.

If you have dental pain, swelling, an injury or bleeding, seek dental advice now — do not wait. This guide is general information and does not replace care from a dentist, doctor or mental-health professional.