[Biomechanical fundamentals of the dentofacial anomalies treatment].

The results of biomechanical investigations of the central incisor having the formed root by mathematical modeling methods are presented. The centre of resistance of a tooth, the optimal horizontal forces of action and reaction were determined. The advantage of discontinuous forces due to amortization influence of periodontal ligament fluid was biomechanically proven.

[The immediate and late results of treating the teeth of children after trauma].

A total of 132 teeth were treated in 105 children and adolescents aged 4, 5 to 15. All the patients were divided into 8 groups in accordance with the WHO classification; treatment policy and follow-up results over a period of 6 months to 5 years presented. Satisfactory remote results were attained in 91.

[Secondary jaw deformities accompanying tumors and tumor-like formations in children and adolescents].

Clinical follow-up of children aged 2 to 14 with tumors and tumor-like formations permitted diagnose secondary deformations of maxillary bones in 44. Symptomatology of these deformations had signs which distinguished intraosteally growing tumors from extraosseous ones localized in soft tissues adjacent to jaw bones. Good results were attained with the use of protective labial and buccal plates which not only shielded bone formations from tumor pressure before surgery but created a support for compressive dressing during sclerosing therapy of vascular tumors in children.

[Orthodontic treatment results with dental arch anomalies in children and adolescents with and without removal of the teeth].

Patients were aged 6 to 15 years. The first group (197 patients) was treated without teeth extraction, 2nd group had teeth extracted. The treatment of dentition anomalies was effective both in decidual and permanent occlusion.