In present paper the results of the stress-strain state finite element analysis of the humanmaxillary complex after activating orthodontic
appliance are performed. Skull and abutment teeth models are obtained on the basis of the tomographic data of the dry intact adult
skull. Orthodontic appliance designs are differ in the arrangement of rods and screws relative to the sky. The equivalent stresses and
displacements of the maxillary bones and supporting the teeth are evaluated. It is shown that the horizontal location of orthodontic
