To retrieve or not to retrieve the coronectomy root--the clinical dilemma.

UNLABELLED Coronectomy of mandibular third molars is a well established technique that is going through a resurgence as it seems to reduce the risk of inferior dental nerve (IDN) injury. The reservation with the technique arises because of fear that the retained root will become infected and symptomatic over time. General dental practitioners will be responsible for the long-term review and care of these patients and, consequently, it is important that they are aware of the technique and its sequelae. CLINICAL RELEVANCE Coronectomy of mandibular third molars to avoid nerve injury is becoming increasingly popular. It is important that general dental practitioners (GDPs) are aware of the immediate and later sequelae of treatment and the implication of the retained root.

[1]  J. Kwok,et al.  Coronectomy practice. Paper 2: complications and long term management. , 2013, The British journal of oral & maxillofacial surgery.

[2]  J. Kwok,et al.  Coronectomy practice. Paper 1. Technique and trouble-shooting. , 2012, The British journal of oral & maxillofacial surgery.

[3]  L. Cheung,et al.  Safety of coronectomy versus excision of wisdom teeth: a randomized controlled trial. , 2009, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.

[4]  E. Ariji,et al.  Clinical evaluations of coronectomy (intentional partial odontectomy) for mandibular third molars using dental computed tomography: a case-control study. , 2009, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[5]  D. Dolanmaz,et al.  A preferable technique for protecting the inferior alveolar nerve: coronectomy. , 2009, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[6]  R. Talwar,et al.  The American Association of Oral and Maxillofacial Surgeons Age-Related Third Molar Study. , 2005, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[7]  M. McGurk,et al.  A randomised controlled clinical trial to compare the incidence of injury to the inferior alveolar nerve as a result of coronectomy and removal of mandibular third molars. , 2005, The British journal of oral & maxillofacial surgery.

[8]  M. Pogrel,et al.  Coronectomy: a technique to protect the inferior alveolar nerve. , 2004, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[9]  B. C. O'Riordan.  Coronectomy (intentional partial odontectomy of lower third molars). , 2004, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.

[10]  A. Wenzel,et al.  Mandibular third molar removal: risk indicators for extended operation time, postoperative pain, and complications. , 2004, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.

[11]  E. Seldin,et al.  Types, frequencies, and risk factors for complications after third molar extraction. , 2003, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[12]  C. Bloomer.  Alveolar osteitis prevention by immediate placement of medicated packing. , 2000, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.

[13]  B. Stegenga,et al.  Complications after mandibular third molar extraction. , 1995, Quintessence international.

[14]  M. Chiapasco,et al.  Side effects and complications associated with third molar surgery. , 1993, Oral surgery, oral medicine, and oral pathology.

[15]  M. Zola.  Avoiding anesthesia by root retention. , 1993, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[16]  M. Rohlin,et al.  Postoperative status after partial removal of the mandibular third molar. , 1989, Swedish dental journal.

[17]  D. W. Shelton,et al.  Complications following removal of impacted third molars: the role of the experience of the surgeon. , 1986, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[18]  I. Small,et al.  A prospective study of complications related to mandibular third molar surgery. , 1985, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[19]  M. Goldberg,et al.  Complications after mandibular third molar surgery: a statistical analysis of 500 consecutive procedures in private practice. , 1985, Journal of the American Dental Association.

[20]  R. Bruce,et al.  Age of patients and morbidity associated with mandibular third molar surgery. , 1980, Journal of the American Dental Association.