Incidence of impacted mandibular third molars in population of Bosnia and Herzegovina: a retrospective radiographic study

Introduction: Impaction may be defined as the failure of complete eruption into a normal functional position of one tooth within normal time due to lack of space in the dental arch, caused by obstruction by another tooth or development in an abnormal position. The mandibular third molar is the most frequently impacted tooth. The incidence varies from 9.5% to 68% in different populations. Methods: The study was conducted in Department of Oral Surgery, Faculty of Dentistry, University in Sarajevo. Study represents retrospective analysis of panoramic radiographs (orthopantomograms) of patients referred to Department of Oral Surgery from January 2010 to February 2013 with indication for surgical removal of impacted third molars. Results: Of the 2000 radiographs, 761 presented with at least one impacted third molar (38%). A total of 1034 impacted mandibular third molars were present (51.7%). The most common age group was third decade (61.2%). Signifi cant statistical difference in incidence of third molar impaction was found between females and males (p