Cracked tooth or broken filling: what to do before your appointment
What a cracked tooth or broken filling can feel like
A cracked tooth or broken filling may cause a sharp edge, food trapping, sensitivity to cold or biting, or a feeling that something is not right when you close your teeth. Sometimes the problem is easy to see. Other times it only shows up when you chew or when the tooth is tested in the office.
The important point is this: you cannot fully assess the problem at home. A dental exam is needed to find out how deep the crack or break is and what kind of treatment, if any, is appropriate.
First steps to take before the appointment
- Stop chewing on that side. Give the tooth a rest so the crack or broken edge is less likely to worsen.
- Choose soft foods. Soup, yogurt, eggs, pasta, and similar foods are easier on a sore tooth.
- Keep the area clean. Brush gently and floss carefully so food does not collect around the break or filling.
- Use a cold compress if the tooth feels sore or the area looks puffy. A cold pack wrapped in a cloth can help calm irritation for short periods.
- Protect sharp edges. If a rough edge is cutting your cheek or tongue, avoid touching it and call for advice when you book.
What not to do at home
- Do not chew hard, crunchy, or sticky foods on the affected side.
- Do not test the tooth repeatedly by biting on it.
- Do not use household glue or other home repair products.
- Do not place aspirin on the gum or tooth.
- Do not wait for the problem to settle down if the tooth is getting more painful or the filling has fallen out completely.
When it may be reasonable to wait briefly
If the break is small, the tooth is not very painful, and there is no swelling or trauma, it may be reasonable to wait a short time for the next available dental appointment. Even then, it is still worth calling soon so the tooth can be checked before the crack grows or the filling breaks further.
Booking soon is usually better than trying to manage the problem for too long, especially if the tooth is catching food or feels sharper each day.
When to call sooner rather than wait
Seek prompt dental attention if you notice any of the following:
- severe or worsening pain
- swelling in the gum, face, or jaw
- exposed tissue or a very sensitive spot that may be near the nerve
- trouble biting together or a new high spot when you close
- a large fracture or a filling that has broken away a lot of the tooth
- the problem started after a fall, sports injury, or other trauma
Pain is not the only sign that matters. Swelling, a major break, or a change in the bite can also mean the tooth should be assessed sooner.
What the dentist may check at the visit
At the appointment, the dentist will usually examine the tooth, check your bite, look at the edges of the filling or fracture, and may take X-rays. Some cracks are hard to see on X-rays, so the exam and symptoms both matter. After that, the dentist can explain whether the tooth may need smoothing, a new filling, bonding, a crown, or another plan based on what is found.
When to use emergency dentistry for faster help
If the pain is severe, swelling is present, or the tooth was injured in a hit to the mouth, use our emergency dentistry page for urgent triage or booking. That is the best next step when you are unsure whether the tooth can wait.
Canadian coverage note
If you have the Canadian Dental Care Plan, some emergency exams and restorative care may be covered when recommended by an oral health provider. Eligibility, documentation, service limits, and out-of-pocket costs can still vary, so it is worth asking about coverage when you book.
If you are not sure whether the tooth can wait, call for an exam rather than trying to guess at home.
Key sources
- Government of Canada: Oral Health
- Cracked tooth diagnosis review
- Government of Canada: CDCP Coverage
This article is for general education only and does not replace personalized advice, diagnosis, or treatment from a licensed dentist.
