AAE’s guide “The Treatment Options for the Compromised Tooth”.
This decision guide features different cases where the tooth has been compromised in both non-endodontically treated teeth and previously endodontically treated teeth. Based on the unique individualized features of each case and patient, there are key considerations in establishing a preoperative prognosis of Favourable, Questionable or Unfavourable.
Endodontic Case Difficulty Assessment Article, AAE, 2005
AAE Case Difficulty Assessment Form and Guidelines
This website, http://www.dentaltraumaguide.org, from the International Association of Dental Traumatology provides an excellent overview of diagnosis, treatment planning and prognosis.
“Recommended Guidelines of the American Association of Endodontists for the Treatment of Traumatic Dental Injuries”.