[An evaluation of the reparative regeneration of maxillary defects based on neutron activation analysis data...

The major mineral components and electrolytes (K, P, Mg, Na, Cl, Mn, Fe, Co, Zn, Br, Sr) of the maxillary lamellar bone tissue and of the reparative regenerate were examined over the course of healing of maxillary nasofrontal artificial defects of various sizes (5 X 20, 7 X 20, 10 X 20 mm) perforating the nasal cavity. Check-ups carried out in 3, 4, and 8 mos after surgery have shown no osteal joining of the maxillary defect. The level of ossification by the 8th month of the follow-up, as evidenced by the content of the major osteotropic elements, just a little surpasses 50-70% of the normal value.