Aim: the aim of this study is to study the tooth impaction given the high frequency of dental anomalies of position. Material and Method: we studied the records and orthopantomography x-rays of 685 patients, who presented to Pediatric Dentistry and Orthodontics Department in Tîrgu-Mure., between 2005-2013. Results: after applying the exclusion criteria, there remained 149 patients, with tooth impaction, with ages between 10 and 18 years. The frequency of dental inclusion in the dental support area has the highest rate in the 12- 14 years age group. There were more cases of total maxillary (112) impacted teeth than total mandibular impacted teeth (74). Conclusions: the most frequently impacted teeth were the canines, and dental inclusion is more common in females than in males.