Analytical review of graphic methods for the study of dental arches in clinical orthodontics

Abstract

The analysis of textbook and modern literature sources devoted to the graphic construction of human dental arches was carried out in order to select the optimal research methods, taking into account the individual characteristics of the craniofacial morphology. The features of the construction of dental arches according to the Hawley method are presented and the possibilities of using this technique only for some types of dental arches are shown. Information is given on the amendments to the calculations of the radius of the Hawley circle, taking into account the geometric laws of the circle. Attention is paid to the shape of the dental arch of the milky period of the bite and the possibility of using the Schwartz method in children only with optimal occlusive ratios without signs of anomalies of the dentition-jaw system is noted. Amendments to the A. Schwartz method are presented, taking into account the size of the teeth and the size of the diastem component. The method for determining the size of the dental arches by the parameters of diagnostic triangles and the dental pentagon is shown. Methods of graphic construction of predicted forms of arcs with their anomalies, as well as with defects of long length, including complete adentia, are presented. This analysis can be useful to orthopedic dentists and orthodontists when choosing methods of prosthetic and orthodontic treatment.