ALGORITHM OF CONE BEAM COMPUTED TOMOGRAPHY ANALYSIS IN ORTHODONTIC DIAGNOSTICS

Abstract

The aim. To systematize the scientific literature data on the algorithm of cone beam computed tomography (CBCT) in the diagnosis of orthodontic patients. Materials and methods. The Medline-Pubmed online database, created by the US National Library of Medicine, was searched for published scientific studies on orthodontic diagnostic methods using CBCT. Outline of the main material. We propose 5 main stages of CBCT analysis in orthodontic diagnostics. The first stage includes a general radiological analysis, namely, an assessment of the condition of periodontal tissues, teeth, the presence of carious lesions, an evaluation of the number and position of teeth, the thickness and height of the cortical plate. The second stage is the appraisal of skeletal proportions: the development of the premaxillary zone of the upper jaw, transverse dimensions of the jaws, assessment of the position of the central line and measurement of the length of the mandibular condyle. At the third stage, the position of the TMJ condyles relative to the mandibular fossae of the temporal bone is assessed. The fourth stage includes the evaluation of the peak growth along the cervical vertebrae and the degree of ossification of the palatal suture. The fifth stage of the CBCT analysis includes the study of postural disorders of the craniocephalic complex and the assessment of the upper airway volume. Conclusions. The use of a clear algorithm of CBCT analysis during orthodontic diagnostics allow the orthodontist to obtain the maximum amount of data on the condition of the dentoalveolar system, to structure the CBCT examination, reasonably prognosticate the results of treatment, taking into account the anatomical features of each patient and make the prescription of orthodontic treatment more effective. Therefore, CBCT should be an integral part of the orthodontist's work.