The main types of physiological agnatically protrusion and retrusion of incisors based on the individual shape of the dental arches

Abstract

Relevance. Front group human teeth is given special attention. However, to date, not showing the diagnostic criteria determine the position of the cutters for their planned positions in constructive is incorrect. Aim. Identification of main varieties physiological protrusions and retrusions incisors tools taking into account individual forms of dental arches permanent occlusion. Materials and methods. Survey of 37 persons aged 21-35 years with physiological occlusion and a full set of permanent teeth with different types of dental arches. Using digital panoramic apparatus Pax-i (Korea) received cone-beam tomography, which lines and measuring key parameters). Results. The study found that the main diagnostic criterion of physiological retrusion and protrusions incisors is the magnitude of their overlapping. Value of sagittal overlap corresponds to vertical slabs and is about 3 mm. The angle between the medial cutters when physiological mezotrusion was 134.38 ± 3.76 degrees, when physiological protrusion 118.06 ± 3.74 degrees, while retrusion - 149.55 ± 3.92 degrees. Conclusions. The specified parameters and the results of the study can be used in orthodontics clinic for planning the position of incisors constructive bite taking into account individual forms of dental arches. In addition, the data can be useful in the clinic of Prosthodontics when choosing methods of prosthetic treatment in the setting of artificial teeth and dental implants.