V02N01 | 2012 | Original Article | Pages 65 to 69
Priscila Dias Peyneau, Claudia Scigliano Valerio, Andréia Cruz Pires Ribeiro de Sousa, Flávio Ricardo Manzi
Root canal therapy, Tooth root, Cone-beam Computed tomography, Diagnosis, Root canal therapy,
Introduction: Perforation is defined as communication between the root canal and the external tooth surface, normally occurs during endodontic treatment and is induced by iatrogenic causes. There are some conditions that favor the perforations, among others the irregular morphology of root canals, root dilaceration, error during pulp chamber preparation, excessive wear of root canal walls and inadequate preparation for intraradicular post placement. Methods: The definitive diagnosis of this type of iatrogenic condition is very difficult due the limitation of periapical radiography, as it offers a two-dimensional image and superimposition of structures. For this reason, imaging methods such as computerized tomography, which allows all the root faces to be evaluated, should be used in order to diagnose and inform the location of root perforations with greater precision. Conclusion: The present study demonstrated the importance of cone beam computerized tomography in the diagnosis of root perforation in three clinical cases.
Peyneau PD, Valerio CS, Sousa ACPR, Manzi FR. Computed tomography in the diagnosis of root perforation. Dental Press Endod. 2012 Jan-Mar;2(1):65-9.