Trautmann, FernandaMoura, Paula deFernandes, Tito LGondak, Rogério OCastilho, Julio C de MFilho, Edmundo Medici2014-05-272014-05-272010-12-01Journal of oral science, v. 52, n. 3, p. 485-489, 2010.1880-4926http://hdl.handle.net/11449/72092In this report, we present a case of myositis ossificans traumatica (MOT) of the medial pterygoid muscle that had developed after mandibular block anesthesia administered for endodontic treatment of the lower right second molar, demonstrating typical features of this condition. MOT should be considered as a differential diagnosis when there is severe limitation of jaw opening and an associated trauma. Panoramic radiographs and axial and coronal computed tomography (CT) scans can effectively delineate the calcified mass. Other imaging studies that may be helpful include magnetic resonance imaging (MRI), bone scans, and ultrasound. As shown in our case, calcified masses were found in the right mandibular angle, which severely limited jaw opening. Some earlier reported cases of MOT were treated by extraoral surgical approaches with complete removal of the evolving muscle. The aim of this case report is to present only the diagnostic imaging aspects of myositis ossificans traumatica.485-489engadultcase reportcone beam computed tomographydifferential diagnosishumaninjuryjoint characteristics and functionsmalemasticatory muscleossifying myositispathologyradiographysoft tissue injuryAdultCone-Beam Computed TomographyDiagnosis, DifferentialHumansMaleMyositis OssificansPterygoid MusclesRange of Motion, ArticularSoft Tissue InjuriesArtigo10.2334/josnusd.52.485Acesso aberto2-s2.0-799521156362-s2.0-79952115636.pdf