Bite and crack assessment
The first step is working out whether the pain is coming from the tooth, gum, bite or an existing restoration.
Pain when biting
Pain when biting can be caused by cracks, bite pressure, decay, gum inflammation or infection and should be assessed if it persists.
Review required by Newstead Dental Co Updated 2026-07-28
Why does my tooth hurt when I bite?
Pain on biting can be hard to interpret because the tooth may feel normal until pressure is applied. It can be linked with cracks, bite pressure, decay, gum inflammation or infection.
What you may be worried about
- The tooth may be cracked.
- The pain may mean the nerve is involved.
- Waiting may make the tooth harder to save.
Possible causes
- A crack that opens slightly under pressure.
- A high filling, bite imbalance or clenching pressure.
- Decay, a leaking restoration or inflammation around the root.
- Gum infection or food packing between teeth.
When to treat this as urgent
Urgency level: soon
- Pain is severe, worsening or associated with swelling.
- The tooth has broken or feels loose.
- There has been trauma or a fall.
What to do now
- Avoid chewing hard foods on the sore side until the tooth is assessed.
- Note whether pain happens on biting down, releasing pressure, or both.
- Book an assessment if the symptom keeps recurring because cracks can be difficult to judge from symptoms alone.
What to avoid
- Do not deliberately test the tooth repeatedly with hard foods.
- Do not assume the tooth is fine because it only hurts under pressure.
When to arrange a dental assessment
- Arrange assessment if biting pain lasts more than a short period, worsens, or is linked with a visible crack or broken filling.
What a dentist may need to assess
- Bite marks, cracks, old fillings, gum pockets, tenderness around the root, and whether the tooth nerve is irritated.
Options that may be considered
Adjusting pressure
If bite pressure is the issue, adjustment or protection may help.
Restoring or treating the tooth
If a crack, decay or infection is found, restoration, root canal treatment or extraction may be discussed.
What we would consider before recommending treatment
- Whether the pain is sharp, lingering or reproducible.
- Whether there is a visible crack, large filling or bite overload.
- Whether the tooth is restorable long term.
If it were our own teeth
If it were our own tooth, we would not ignore repeated biting pain. We would want to know if the tooth is cracked before it breaks further.
A sensible next step
Book an assessment if biting pain persists, worsens, or is linked with swelling, a broken tooth or trauma.
Possible next steps
- Bite adjustment, restoration, a crown, root canal treatment, extraction, or monitoring may be discussed depending on the finding.
Choosing the next step
Use the emergency pathway only when the problem may need urgent review.
For routine, planned, or unclear but non-urgent concerns, book a normal appointment. For swelling, trauma, severe pain, bleeding, or a broken tooth that cannot wait, use the emergency assessment instead.
Common questions
Does pain when biting mean a cracked tooth?
It can, but biting pain can also come from bite pressure, gum problems, decay or inflammation.
Can a cracked tooth be saved?
Sometimes. It depends on where the crack is, how deep it goes and how much sound tooth remains.
Want us to assess your situation?
Book when you feel ready to understand the problem, options and next step.