A broken tooth needs to be seen the same day if it really hurts, if you can see a red or pink dot in the middle of the break, if it's bleeding, or if it follows a hard knock. A small chip that doesn't hurt can wait for an appointment in the next few days. Either way, keep the broken piece.
Not sure? Call us on (+352) 27 52 18 25 : we'll assess the situation with you and see you quickly in Bonnevoie, 7 days a week. For other situations, see our emergency dentist page in Luxembourg.
🚨 Chipped tooth: emergency or not? The 3-question test
When you've just broken a tooth, stress can cloud your judgement. Take a breath and ask yourself these three questions:
- Does it hurt? Strong, spontaneous or throbbing pain often means the deeper part of the tooth is affected.
- Can you see a red or pink dot? In the middle of the break, it usually means the nerve (the pulp) is exposed.
- Was there a hard knock, any bleeding or a sharp edge? An injury, bleeding gums or a jagged edge cutting your tongue are all reasons to be seen quickly.
A single “yes” is enough to call us the same day. If you answered “no” to all three, it's most likely a simple chip: not an emergency, but don't leave it too long.
| When to see a dentist | Situation |
|---|---|
| Today | Strong pain, visible red or pink dot, bleeding, hard knock, tooth broken in half or snapped at the gum line |
| Within 48 hours | Clear sensitivity to hot or cold, sharp edge irritating your tongue, a filled or crowned tooth that breaks |
| Within 1 to 2 weeks | Small enamel chip with no pain or sensitivity, mainly a cosmetic concern |
These timeframes are a guide only: a broken tooth with no pain can hide a deeper crack, and only an examination can tell. After a hard blow to the face with loss of consciousness, heavy bleeding or difficulty opening your mouth, call 112 or go to hospital A&E.
🩹 What to do in the first hour
What you do right after the break can make the repair easier. You don't need anything special: a glass of milk, a clean gauze pad and a bit of calm will do.
🦷 Find and store the broken piece
If you can find the broken piece of tooth, pick it up gently without rubbing it. Rinse it briefly if it's dirty, then put it in a small container of milk or saline solution. Don't let it dry out in the open air or wrap it in a tissue.
Bring it to your appointment: depending on its size and condition, your dentist may sometimes be able to reattach it. And even when that's not possible, the fragment helps them understand how the tooth fractured.
❄️ Ease the pain and stop the bleeding
Rinse your mouth gently with lukewarm water. If your gum is bleeding, press a clean gauze pad on it for about ten minutes. To reduce pain and swelling, hold something cold against the outside of your cheek (an ice pack wrapped in a tea towel), for short periods.
Which painkillers are fine and which should you avoid? We cover this in detail in the painkillers question in our FAQ. If a sharp edge is cutting your tongue, a little orthodontic wax from the pharmacy can cover it until your appointment.
⛔ What not to do
- Don't glue the piece back with superglue: household glues aren't made for the mouth and can make a proper repair impossible.
- Don't file or sand the edge yourself: you could make the crack bigger.
- Don't chew on that side: the weakened tooth can split further.
- Don't put a tablet on your gum: it causes a chemical burn to the soft tissue.
- Don't wait for it to “settle down”: enamel doesn't repair itself, and an untreated fracture can get worse.
🔍 Chipped, cracked or broken: what type of fracture is it?
A tooth has three layers: the enamel (the hard white outer shell), the dentine (softer, just underneath) and the pulp in the centre, which contains the nerve and blood vessels. How serious a broken tooth is depends mainly on which layer is affected.
✨ An enamel chip: the chipped tooth
This is the most common case, often on a front tooth after a knock or when biting something hard. The edge feels rough or uneven under your tongue, but there's no pain. It isn't an emergency; an appointment within two weeks lets your dentist smooth or rebuild the tooth before the chip gets bigger.
🟡 A fracture that reaches the dentine
The break is deeper and shows a slightly yellowish area. The tooth becomes sensitive to hot, cold or sweet things, because dentine passes these sensations on to the nerve. It's best to be seen within 48 hours: protecting the dentine quickly helps preserve the pulp.
🔴 A fracture that exposes the nerve
If you can see a red or pink dot in the middle of the break, or slight bleeding, the pulp is probably exposed. It may hurt a lot, but not always. This needs to be seen the same day: the longer the pulp stays exposed, the higher the risk of infection.
⚡ A cracked tooth: the crack you can't see
Sometimes nothing looks broken. Yet you feel a short, sharp pain when chewing, or at the moment you release the bite, sometimes with sensitivity to cold. This is often the sign of a cracked tooth: a crack invisible to the naked eye that can spread painlessly for weeks.
Don't ignore this kind of symptom: a crack spotted early is usually simpler to treat. Diagnosis needs a careful examination, sometimes with an X-ray.
🦴 A tooth broken at the gum line or in half
When a large part of the tooth has come away, or it has split lengthwise, the fracture can extend down to the root. The situation is more complex, and the tooth can't always be saved. Get it checked the same day: an examination and an X-ray will show which options are still open.
🛠️ How a dentist repairs a broken tooth
Treatment depends on the size of the fracture, which layer is affected and where the tooth is. Your dentist will explain the possible options after examining you, and what each one involves, before starting anything.
🔗 Reattaching the original fragment
When the piece has been found and stored properly, and the break is clean, it can sometimes be bonded back with a special dental adhesive. It's the most discreet option, as the tooth keeps its original shape and shade. But it isn't always possible: only the examination can tell.
🎨 Rebuilding the tooth with composite resin
For a chip or a moderate fracture, the dentist rebuilds the missing part with tooth-coloured composite resin, shaped layer by layer and then polished. It's the most common chipped tooth repair, often done in a single visit.
👑 A veneer or crown for larger losses
If a large part of the tooth is missing, a stronger restoration may be suggested: a veneer (a thin shell bonded to the visible surface, mainly for front teeth) or a crown, which covers and protects the whole tooth. These usually take several appointments.
🌿 Treating the nerve if the pulp is affected
When the nerve is exposed or infected, root canal treatment may be needed before the tooth is rebuilt. It involves removing the pulp, then cleaning and sealing the canals. Because the tooth becomes more fragile, it is then usually protected with a filling or a crown.
🔩 When the tooth can't be saved
If the fracture goes too far down the root, the tooth sometimes can't be kept. It's then extracted, and there are several ways to replace the missing tooth afterwards, such as a bridge or an implant. Your dentist will talk it through with you, without rushing, once things have settled.
💶 What does it cost, and what does the CNS cover?
The cost of fixing a broken tooth depends entirely on the treatment: polishing, a composite repair and a crown are very different things. Here's what you need to know in Luxembourg.
- CNS cover: contracted dental treatment is reimbursed at 88% of the official tariff for adults, and 100% for under-18s.
- No upfront payment: at Dentalplus, thanks to direct billing (tiers payant), you don't pay the CNS share yourself.
- Private top-up insurance: if you have a complementary health plan (mutuelle), it may cover some or all of the remaining amount, depending on your policy.
Crowns, veneers and prostheses follow specific reimbursement rules, and purely cosmetic treatment is generally not covered. Our team always gives you an estimate before treatment, so you know what to expect: book an appointment to talk it through.
Are you a cross-border worker, an expat or just visiting? CNS membership and how to use your European Health Insurance Card (EHIC) are explained in our FAQ section for cross-border workers and visitors.
🧩 Special cases
🧒 My child has broken a tooth
If it's a baby tooth, have it checked to make sure the adult tooth underneath hasn't been affected. If it's a permanent tooth, follow the same steps as for an adult: find the fragment, keep it in milk and call us quickly. You'll find step-by-step advice for children in our FAQ.
🔧 A filled or crowned tooth that breaks
A root-filled or heavily filled tooth is more fragile: it can break without warning, sometimes painlessly because the nerve has been removed. No pain doesn't mean it can wait, as the remaining tooth is exposed and can split further. If a crown has come off, keep it and don't glue it back yourself. Call (+352) 27 52 18 25 for a quick appointment.
🌙 Broken tooth in the evening or at the weekend
Dentalplus is open 7 days a week and sees emergencies on Saturdays and Sundays. The easiest thing is to call us on (+352) 27 52 18 25: we'll help you decide whether your tooth needs to be seen today. All the practical details are on our dental emergency page.
Outside our opening hours, if you're in severe pain or have had a serious injury, 112 can direct you to the appropriate on-call service.
🛡️ Preventing the next break
Some broken teeth can be avoided with a few simple habits:
- A mouthguard for contact and ball sports (rugby, hockey, boxing, basketball…), ideally custom-made.
- A night guard if you clench or grind your teeth (bruxism): that repeated pressure weakens enamel and encourages cracks.
- Never use your teeth as tools: no opening bottles, packaging or bags with your teeth.
- Take care with very hard foods: ice cubes, olive stones, bones, hard sweets.
- Regular check-ups: decay or an old, weakened filling can be spotted before the tooth breaks.
❓ Chipped tooth: frequently asked questions
🩺 Can a chipped tooth heal or grow back on its own?
No. Unlike bone, enamel doesn't regenerate: once it's broken, it won't grow back. The missing part won't return by itself, and an untreated fracture can get bigger or let bacteria in. The good news is that most chipped teeth are simple to repair, especially when they're treated early.
⏳ How long can I wait before getting a chipped tooth fixed?
For a small enamel chip with no pain or sensitivity, an appointment within one to two weeks is usually reasonable. Sensitivity to hot or cold means you should be seen within 48 hours; strong pain or a red dot in the middle of the break, the same day. If in doubt, call us: we'll assess the situation with you over the phone.
🤔 My broken tooth doesn't hurt: do I still need to see a dentist?
Yes. No pain doesn't mean the tooth is intact: a crack can spread silently, and a root-filled tooth no longer hurts because the nerve has been removed. An examination checks how deep the fracture goes and protects the tooth before things get worse. It isn't an emergency, but don't let several weeks go by.
🧷 Can a broken piece of tooth be reattached?
Sometimes, yes, if the fragment was found, kept in milk or saline solution, and brought to the practice quickly. Whether it can be reattached depends on the size of the piece, its condition and the shape of the break: only an examination can tell. Never try to glue it back yourself with household glue, as this would compromise the repair.
🏥 Is repairing a broken tooth covered by the CNS?
Contracted dental treatment is covered by the CNS at 88% of the official tariff for adults, and 100% for under-18s. At Dentalplus, thanks to direct billing, you don't pay the CNS share upfront. Some treatments, such as crowns or veneers, follow specific rules: we give you an estimate before any treatment.
📅 I broke a tooth at the weekend in Luxembourg: what should I do?
Keep the fragment in milk, rinse your mouth with lukewarm water and hold something cold against your cheek if needed. Dentalplus is open 7 days a week and sees emergencies on Saturdays and Sundays in Bonnevoie: call (+352) 27 52 18 25. If you have a serious facial injury or difficulty breathing, call 112.
📞 Broken tooth? We're here 7 days a week in Bonnevoie
The sooner a broken tooth is treated, the simpler the repair tends to be. Our team welcomes you 7 days a week in Bonnevoie, in the heart of Luxembourg City:
- By phone: (+352) 27 52 18 25, the fastest option if you're in pain.
- Online: Book an appointment, any time.
Abscess, lost crown, severe pain? For every other situation, see our emergency dentist page in Luxembourg.
Written by the Dentalplus Luxembourg team, reviewed by Dr Rachida Messous · 3 Rue de Houffalize, 1737 Bonnevoie
Contact: contact@dentalplus.lu · (+352) 27 52 18 25
This article is for information only and does not replace a consultation. In case of serious facial injury, difficulty breathing or swallowing, call emergency services immediately (112).