ALGORITHM FOR TREATMENT OF PATIENTS WITH MESIAL OCCLUSION USING PROPRIETARY ORTHODONTIC DEVICE.

Early elimination of dentoalveolar apparatus orthodontic disorders is the dominant concept in the treatment technique.

AIM: to present a sagittal anomalies treatment algorithm, of Class III particularly, in the transitional bite period by the proposed design of individual orthodontic devices with a movable ramp. The treatment algorithm consisted of several blocks: the motivation, the etiological factors establishment, the plan and treatment tactics creation basing on careful diagnosis, the stages of the active period of treatment and the patient management in the retention period. Anthropometric measurements of the maxilla and mandible models were performed to determine the degree of dental arches development. The length of the dental arches was determined on the models by the Nance method in combination with the Huckaba method and the sagital dimensions by the Mirgasizov's method. The leading role in the patients examination was taken by lateral cephalograms analyzing using the Sassouni Plus method. The proposed construction of an orthodontic appliance consists of a plastic base, a vestibular arc, retaining clasps and a ramp, which is connected with a base with two torsion springs. To demonstrate the effectiveness of the proposed construction, an example of the patient Y. treatment of at the age of 6 years 9 months is presented. After the treatment, positive morphological, functional and aesthetic changes were established. The usage of proposed orthodontic appliance with movable ramp allows to start orthodontic treatment at early age, increases its effectiveness and reduce the number of complications. The expediency of stage-by-stage treatment is approved by a positive results of such method. To achieve stable results, it is important to individualize their prognosis even at the planning stage of orthodontic treatment.