Objective: The aim of this study is to observe the prevalence, etiology, diagnosis, treatment and outcome of root fractures in adult patients who suffered a dentoalveolar trauma. We present a different treatment protocol for root fractures in adult patients, according to our success rates, as well as the prognosis and long-term outcomes. Materials and methods: In a retrospective study was conducted by reviewing the records of all patients with dentoalveolar trauma and root fractures between May 2009 and May 2010 in the Department of Oral and Maxillofacial surgery, Hospital Mutual de Seguridad C.Ch.C., Santiago de Chile. Results: A total of 894 dentoalveolar trauma cases were recorded, of which 56 (6.3%) were root fractures. In terms of outcome, implants had a 100% success rate to the date, instead root canal treatment and flexible splint showed only a 20% of success, because 80% progressed to tooth loss and dental implant. Conclusions: We believe that dental replacement of tooth loss after root fracture by dental implant is an excellent option and should be recommended. © 2012 SECOM.