Dental Trauma: Emergency Management

Andreasen's classification of dental trauma, the protocol for managing an avulsed tooth, and why the first minutes after trauma are decisive for prognosis.

Dental trauma is one of the few true dental emergencies where the timing of intervention directly affects long-term prognosis, particularly in cases of complete avulsion. The classification most used in the literature, developed by Jens Andreasen, distinguishes injuries based on the tissue involved: injuries to hard tissue and pulp (from simple enamel fracture to root fracture), injuries to supporting periodontal tissue (from concussion to luxation to complete avulsion), and injuries to supporting bone.

Avulsion — complete displacement of the tooth from its socket — is by far the emergency requiring the fastest response. Prognosis largely depends on the viability of periodontal ligament cells remaining attached to the root, which begin dying rapidly if the tooth stays out of the socket without a suitable storage medium. The correct protocol involves: if possible, immediately reimplanting the tooth into its original socket, gently rinsing it without scrubbing the root surface; if immediate reimplantation isn't feasible, storing the tooth in a suitable medium — saline solution, fresh milk, or the patient's own saliva if nothing else is available — absolutely avoiding tap water, which due to its hypotonicity rapidly damages periodontal ligament cells.

It's important to convey a simple principle to patients, or to whoever assists them right after trauma: an avulsed tooth reimplanted within a few minutes has a significantly better prognosis than one reimplanted after an hour, and this time window is so critical that, when possible, on-the-spot reimplantation (at school, on the sports field) by whoever is present, however imperfect, is generally preferable to waiting for transport to the practice.

Primary teeth are an important exception to this rule: they're never reimplanted after avulsion, because reimplantation risks damaging the underlying permanent tooth germ still forming. For other traumatic injuries — concussion, subluxation, luxation — management ranges from simple clinical and radiographic observation over time to reduction and splinting of the tooth for a variable period, depending on the severity of displacement and remaining mobility.

On Oralzon you'll find kits for managing traumatic emergencies, including containers for storing avulsed teeth, splinting materials and diagnostic systems for assessing pulp vitality after trauma.