[Disturbance of dentoalveolar arch formation in the front part of the maxilla due to 11, 21 teeth retention. Treatment].

The cause of disturbance of dentoalveolar arch formation in the front part of the maxilla in one patient was the maxillary central incisors eruption delay due to retention of supernumerary teeth situated in the region of upper central incisors. A positive result of the treatment was achieved with the use of surgical and orthodontic methods. The distinctive feature of the orthodontic method was retained tooth displacement (by traction) into the dentition.