Injuries to teeth are one of the few genuinely time-critical situations in dentistry. What is done in the first hour often decides whether a tooth survives, and the follow-up matters for years afterward. After a blow to the mouth, a tooth may be chipped, loosened, pushed out of position or knocked out completely, and even a tooth that looks fine can have damage to the nerve, so prompt evaluation and follow-up over the next weeks matter as much as the first visit.
Symptoms that bring people in urgently: dental trauma and injury
- A tooth knocked completely out
- A tooth pushed out of position or into the gum
- A tooth loosened by a blow
- A tooth fractured with the inside exposed
- Injury to the lip, gum or jaw
- A child who has fallen and damaged a front tooth
What the dentist may need to do
- Immediate assessment and repositioning where possible
- Splinting a loosened or repositioned tooth
- Root-canal treatment if the nerve does not survive
- Rebuilding a fractured tooth with bonding or a dental crown
- Long-term monitoring, because trauma effects can appear years later
What happens at the assessment
Trauma cases need both immediate care and long-term follow-up, because effects can appear much later.
- Checking for injuries beyond the teeth, including the jaw
- Assessing each affected tooth for movement and position
- X-rays to check roots and surrounding bone
- Repositioning and splinting where needed
- Testing nerve response, repeated over subsequent visits
- A follow-up schedule that may run for years
Common questions
Dental Trauma and Injury: questions people ask
The tooth looks fine now. Do I still need follow-up?
Yes. A traumatised tooth can lose its nerve supply months or years later, often painlessly. Follow-up is how that gets caught before it becomes an abscess.
My child knocked out a baby tooth: should it be put back?
Baby teeth are generally not reimplanted, because doing so can damage the developing adult tooth underneath. Adult teeth are different: see knocked-out tooth. Get the child seen either way.
The tooth has turned grey. What does that mean?
Usually that the nerve did not survive the injury. It does not always need treatment immediately, but it needs assessing, and it is treatable.
Should I go to an emergency room?
For serious facial injury, suspected fracture, loss of consciousness or uncontrolled bleeding, yes. For the teeth alone, a dentist is the right place: see emergency dentist or emergency room.
Which injuries to the mouth need care straight away?
A tooth knocked completely out. A tooth pushed out of position or into the gum. A tooth loosened by a blow. A tooth fractured with the inside exposed. An injury to the lip, gum or jaw. A child who has fallen and damaged a front tooth. What is done in the first hour often decides whether a tooth survives.
Why does trauma need long follow-up?
Effects can appear years later. The team checks for injuries beyond the teeth, including the jaw. Each affected tooth is assessed for movement and position. X-rays check roots and bone. Loosened teeth may be repositioned and splinted. Nerve response is tested and repeated over later visits. The follow-up schedule may run for years.