Exodontia.Info
Dental Emergencies

In this sense, trauma to teeth and their supporting
tissues.  This involves injuries to the dental hard tissues
(
enamel, dentine and cement), the pulp and the alveolar
process
, to concussion of the tooth to avulsion of the
tooth and its
re-implacement within its socket.

This is a broad subject and other people explain it far
better than me.

Regardless though, I list here very useful websites and
also a variety of articles about dental trauma.
Dental Emergencies & Trauma
Photo of dental trauma, effecting the right incisors and
lower
canine, with the avulsion of the upper right central
dento-alveolar fracture
containing the lower right incisors
and
canine.
University Hospital of Copenhagen, Dental Trauma Guide
2010

British Dental Health Foundation - Avulsed Teeth

British Dental Health Foundation - Cracked Teeth

Emedicine - Dental, Avulsed Tooth

Emedicine - Dental, Displaced Tooth

Emedicine - Dental, Fractured Tooth

MaxFaxSHO.co.uk - Dental Trauma: History and
Examination

MedicsDirect.co.uk - Trauma to Teeth

MedicsDirect.co.uk - Treatment Of A Knocked Out Adult
Tooth

NCEMI.org - Avulsed Tooth (Tooth Loss)

NCEMI.org - Dental Trauma (Fracture, Subluxation and
Displacement)


Useful Articles:

BMJ 2000.  Dental Damage, Sequelae and Prevention

BMJ 2000.  ABC of Oral Health - Dental Emergencies

BMJ 2000.  ABC of Oral Health - Improving Occlusion
and Oro-Facial Aesthetics: Tooth Repair and
Replacement

Chapter 5 - Dental Emergencies

J Can Dent Assoc 2003.  Avulsions and Intrusions - the
Controversial Displacement Injuries

American Academy of Pediatric Dentistry 2004.  Clinical
Guideline on Management of Acute Dental Trauma

American Association of Endodontists 2004.  
Recommended Guidelines of the American Association of
Endodontists for the Treatment of Traumatic Dental
Injuries
Last Updated 8th November 2010