Abstract: Methods of beam diagnostics play an important role in examination of patients with dental anomalies. Reliably establish dental anomaly is possible due to radiological examination. However, according to orthopantomography not always possible to identify the true cause of the anomaly, correct localization of abnormal tooth, preservation of periodontal ligament. All this leads to an incorrect treatment planning and the occurance of complications; in this regard all of our patients underwent addition cone-beam computed tomography Under our observation were 60 patients aged 15-30 years with a complex form anomaly of the position and the eruption of teeth. Half of patients had an anomaly of upper canines, remaining patients, the anomaly of upper premolars, canines and premolars in the mandible. The main cause of anomalies of teeth was due to lack of space in the dentition, less abnormalities were associated with the presence of obstacles in the way of the eruption, with congenital abnormalities of the maxillofacial region. Possibilities of orthodontic and surgical interventions are limited and therefore it is very important accurate and reliable diagnosis of abnormalities. Cone-beam computed tomography allows to obtain all necessary information about the position of the tooth in the bone, its structure, shape, spatial relationship with roots of adjacent teeth and important anatomic structures, which makes it possible to properly plan for the further treatment strategy and reduce the risk of possible complications. References 1. Persii L.S. Vidy zubocheljustnyh anomalij i ih klassificirovanie. [Types of dentoalveolar anomalies and their classification]. M.: MGMSU. 2002: 32 [In Russ]. 2. Uiljam R. Profit. Sovremennaja ortodontija. Per. s angl. jaz.: (Pod red. Persina L.S.) [Contemporary orthodontics] M.: MEDpress-inform, 2006; 95-123 [In Russ]. 3. Horoshilkina FJa. Ortodontija. Defekty zubov, zubnyh rjadov, anomalii prikusa, morfofunkcional'nye narushenija v cheljustno-licevoj oblasti i ih kompleksnoe lechenie [The defects of teeth, dentition, abnormal bite, morpho-functional disorders in the maxillofacial region, and their combined treatment]. M.: Medicinskoe informacionnoe agentstvo. 2006: 544 [In Russ]. 4. Shuk Mazen. Kliniko-rentgenologicheskaja diagnostika i apparaturno-hirurgicheskoe lechenie retencii klykov [Clinical and radiographic diagnosis and surgical treatment for hardware-retention canines]:Avtoref. Dis. kand. med. Nauk [thesis PhD] Tver'. 2004: 102 [In Russ]. 5. 6. Vasil'ev AJu., Vorob'ev Ju.I., Serova N.S. Luchevaja diagnostika v stomatologii [Radiodiagnostics in dentistry.] M.: GJeOTAR-Media. 2008: 201-220 [In Russ]. 7. Minjaeva V.A. Posledstvija rannej utraty zubov u detej bez zamewenija defektov ortopedicheskimi apparatami [The consequences of early loss of teeth in children without defects in replacement orthopedic devices]. Stomatologija detskogo vozrasta i profilaktika. 2003; 1(2): 61-64 [In Russ]. 8. Sergeeva L.B. Peremewenie treh retinirovannyh klykov v zubnoj rjad s pomowju nesemnoj ortodon gicheskoj tehnikoj [Moving the three impacted canine tooth in the series with non-removable orthodontic appliances]. Ortodontija. 2001; 3: 40-41. [In Russ]. 9. Fridrih A. Pasler, Hajko Vissler. Rentgenodiagnostika v praktike stomaloga. Per. s nem. jaz. (Pod red. Rabuhinoj N.A.) [X-ray diagnostics in the practice of stomaloga. (Translated from German. lang. (Eds. Rabuhinoy NA)] M.: MED- press-inform. 2007: 118-131 [In Russ]. 10. Chaushu S. The use of panoramic radiographs to localize displaced maxillary canines. Oral Surg.Oral Med. Oral Pathol. Oral Radiol. Endod. 1999; 88(4): 511-516. 11. Garcia M.A.S., Wolf U., Heinicke F. Cone-beam computed tomography for routine orthodontic treatment planning: A radiation dose evaluation. American Journal ofOrthodontics and Dentofacial (Orthopedics. 2008; 133(5): 640.e1-640.e5. 12. Haney E., Gansky 13. Volchek D.A. Sovremennye metody obsledovanija pacientov s retenciej klykov verhnej cheljusti [Modern methods of examination of patients with retentions canines of the upper jaw.] Ortodontija. 2006; 1: 24-26 [In Russ]. 14. Chibisova M.A. Algoritmy obsledovanija pacientov pri primenenie dental'noj ob#emnoj tomografii v ambulatornoj stomatologicheskoj praktike [Algorithms for evaluation of patients with the use of dental volumetric imaging in ambulatory dental practice]. Dental Market. 2010; 76-78 [In Russ]. 15. Danforth R.A. Cone beam volume tomography: an imaging option for diagnosis of complex mandibular third molar anatomical relationships. J. Calif. Dent Assoc. 2003; 31(11): 847- 852. 16. Dodson T.B. Role of computerized tomography in management of impacted mandibular third molars. NY State Dent. J. 2005; 71(6): 32-35. 17. Mah J.K., Alexandroni S. Cone-Beam Computed Tomography in the Management of Impacted Canines. Seminars in Orthodontics. 2010; 16(3): 199-204.