You've had your filling, you skipped lunch because you were nervous, and now you're starving. Half your face feels like it belongs to someone else, and there's a sandwich calling your name. So, can you? It's one of the most common things I hear in my surgery, usually from someone already halfway to the shop.
The short answer: with a white filling, you can usually eat as soon as the numbness has worn off, which is often a few hours. The filling itself is set hard before you leave the chair. The real reason to wait is that while you're numb you can bite your cheek, lip or tongue, or burn your mouth, without feeling it. With a silver (amalgam) filling, I'd also avoid heavy chewing on that side for the first few hours, because it sets more slowly. If you're not sure which type you've got, just ask; it's a normal part of any check-up or filling visit with me. If eating hurts so much you can't, or the tooth throbs on its own, that's different: call my emergency dentist team in Harlow or Enfield, or NHS 111 if we're closed. The bigger picture is in my tooth fillings guide.
Still numb? Eat on the other side, or wait. If anything feels wrong afterwards, call your nearest Minti practice. I keep same-day appointments for pain and swelling wherever I can.
- Nuffield Dental Practice, Harlow: 01279 424 038
- Church Langley Dental, Harlow: 01279 306 690
- Enfield Smiles, Enfield: 020 8804 4320
Evening, weekend, or nowhere near us? Call NHS 111. If you're struggling to breathe or swallow, or swelling is spreading to your eye or neck, that's 999 or A&E.
Can you eat straight after a filling?
Technically, often yes. A white filling is set hard with a blue light before I let you go, so food won't damage it. What can get damaged is you.
Local anaesthetic doesn't just numb the tooth. It usually numbs the lip, cheek or tongue on that side too. You lose the feedback that normally stops you chewing your own cheek, and you can't feel temperature properly either. A numb lip is a bit like a car with the parking sensors switched off: everything seems fine until you hear the crunch.
So my rule is simple: wait until the numbness has gone before you eat anything that needs chewing, and until then keep away from anything hot. If you're really hungry, something soft and cool on the other side of your mouth is the gentlest option.
If it's a child who's had the filling, keep an eye on them. Numb lips are fascinating to chew when you're small, and a bitten lip can be sorer than the filling ever was.
Does it matter what type of filling you had?
A little, yes:
- White (composite) fillings are hardened with a curing light in the chair. Once the numbness has worn off, you can eat normally.
- Silver (amalgam) fillings set more slowly, so for the first few hours I'd chew on the other side and skip anything very hard or sticky on that tooth. Toffee can wait. It's not going anywhere.
- Glass ionomer fillings are tooth-coloured and used in particular situations. I'll tell you if you've got one and whether I want you to go easy on it.
- Temporary fillings aren't built to last, so be gentle with them until the permanent one goes in. I've covered how long you can leave a temporary filling in.
Not sure what you had? That's completely normal. Ring and ask, or ask me before you leave the chair. The differences between the two main types are in white vs amalgam fillings.
What should you eat for the rest of the day?
Once you can feel your face again, most people can eat normally. A few sensible tweaks for the first day:
- Soft, easy food first. Pasta, eggs, soup that's cooled down, yoghurt, a banana. Nothing that needs a fight.
- Go easy on very hot or very cold. A freshly filled tooth can be a bit sensitive, and ice cream straight on it may zing.
- Chew on the other side if the tooth or gum feels tender.
- Leave the really hard stuff for a day or so: boiled sweets, nuts, crusty bread, ice cubes. This matters most with a silver filling.
For tea, coffee and the celebratory glass of wine, see how long after a filling you can drink.
What if eating hurts after a filling?
A bit of tenderness is normal. The gum may be sore where the equipment sat, and the tooth can be sensitive for a week or two. An NHS community dental service says sensitivity after a filling should normally settle within a few weeks, and to get in touch if it hasn't eased within four.
But some kinds of pain are telling you something:
- It hurts every time you bite, and your bite feels "wrong". The filling may be sitting a touch high. I've done it myself, and every honest dentist has. It's a quick adjustment. See my filling feels too high.
- Cold still zings weeks later.
- A deep, throbbing ache hours later. See bad tooth pain hours after a filling.
- The filling has come out while eating. See can you eat with a lost filling?
Please don't just chew on the other side for a month and hope. A high filling doesn't wear itself in, and you can't work out which of these it is from your sofa. I can, usually in one short visit.
When should you call a dentist?
If you've just had a filling and you're a bit tender, give it time. Book a routine appointment if eating is still uncomfortable after a week or two, or straight away if your bite feels wrong.
Call us today if:
- the tooth throbs on its own, keeps you awake, or painkillers aren't helping
- pain after hot or cold lingers rather than fading in a few seconds
- part of the filling or tooth has broken off
- the gum around the tooth swells, or there's a bad taste
The NHS says toothache lasting more than two days needs a dentist.
Call 999 or go to A&E, not a dentist, if:
- you're finding it hard to breathe, swallow or speak
- swelling is spreading towards your eye or down into your neck
- your eye is swollen or painful, or your eyesight changes suddenly
- you can't open your mouth properly because of swelling
Until you're seen, the NHS advice for toothache is paracetamol or ibuprofen if you can take them, and avoiding very hot, cold or sweet food on that side.
If you're near Harlow or Enfield, I'd much rather take a look than have you eat on one side for weeks. Ring your nearest Minti practice to book. If it's hurting badly, say it's urgent and we'll do our best to see you the same day. Anywhere else, or out of hours, call NHS 111.
This article is general information, not a diagnosis. Tooth pain needs examining in person to find the cause.
