You do not normally need to fast for a routine dental check-up. However, the right advice changes when an appointment involves sedation, a general anaesthetic or specific instructions from your dental team. Check your appointment letter before deciding what to eat.

The practical answer is to identify the kind of appointment you have, then follow the instructions issued for that procedure. Advice for another person’s treatment may not apply to you.

A routine examination

If you have booked an ordinary examination, there is no reason to assume it requires fasting. Eat your usual meal unless the practice has told you otherwise. If you are unsure whether the booking includes another procedure, contact reception and ask the team to clarify.

Bring a list of medicines and any questions you want answered. Do not stop prescribed medication or change a medical eating plan because of general advice online. The dental team should know about relevant health conditions when giving preparation instructions.

Local anaesthetic is different from sedation

Newcastle Hospitals’ preparation guidance says patients having a local anaesthetic can eat and drink normally unless instructed otherwise. Local anaesthetic and being sedated or asleep are different arrangements. Ask which applies to your appointment rather than relying on the word “anaesthetic” alone.

A treatment appointment may also come with advice about eating afterwards. Ask for that separately, especially if you need to plan work, travel or a meal. Instructions for before and after treatment serve different purposes.

If you are having sedation

There is no single fasting rule that should be applied to every dental sedation appointment. For example, Guy’s and St Thomas’ inhalation sedation guidance advises a light meal rather than fasting. That instruction concerns its inhalation sedation pathway; it does not establish what to do before intravenous sedation elsewhere.

Written guidance for intravenous sedation differs between services and clinical circumstances. Follow the instructions sent by the team treating you, including what counts as food or drink and the timing. If the letter is missing, unclear or appears inconsistent with advice you were given, telephone the service before the appointment.

General anaesthetic appointments

The NHS information on general anaesthesia explains that you may need to stop eating and drinking before treatment and that the healthcare team will tell you what to do. Use those specific instructions. Do not substitute a generic internet timetable.

If you have eaten or drunk something contrary to your instructions, tell the team exactly what and when. They can decide what needs to happen. Do not hide it, assume treatment will definitely proceed, or make your own clinical decision about whether the appointment must be cancelled.

A simple preparation checklist

• Confirm whether this is a routine examination, local anaesthetic treatment, sedation or general anaesthetic.
• Read the appointment letter and keep it available.
• Ask the service about unclear eating, drinking or medicine instructions.
• Check any escort and travel requirements if sedation is planned.
• Tell the team if you could not follow the preparation instructions.

For a straightforward check-up, a little planning is usually more useful than worrying about a special meal. For a procedure with specific preparation, the treating team’s instructions take priority.

Plan the rest of your visit

Read our dental check-up guide and advice on booking a dental consultation. For related questions, see hygienist costs in Wimborne, dental X-ray costs.

This article provides general preparation information and does not replace individual clinical instructions. All photographs are illustrative; the featured photograph is credited to Harold Hizon / Unsplash above.