[Microfocus radioimaging in the evaluation of bone regeneration in patients with congenital fissures of the alveolar process].

Congenital fissures of the alveolar process and hard palate are one of the severest pathologies of the teeth and jaws. Plain magnification microfocus radiography and microfocus radioimaging of the upper jaw with bite occlusion are the radiodiagnostic methods of choice for the evaluation of bone defects and regenerative processes. To study the regenerative processes, 52 patients aged 10-16 years with congenital fissures of the alveolar process and hard palate were examined after bone reparative surgery. A bone block from the mental region of the lower jaw, or cancellous iliac crest tissue or biocomponents materials were used to close maxillary alveolar process bony defect. Early and late postoperative osteoreparative processes were evaluated applying plain magnification radiography and microfocus radioimaging. The first signs of osteointegration were observed one month after surgery; the most active processes were detected in the patients in whom a mandibular bone block was employed as an autograft. The patients with a cancellous iliac autograft were found to have partial bone resorption in a number of cases at 6 and 9 months.