[Bone plastic optimization in lateral parts of maxilla].

The results of sinuslift with bone alloplasty were analyzed in 42 patients through the period of 7 years after the treatment. Mucosal penetration occurred only in one case from 11 when the piezosurgical um't was used, but in 4 from 31, operated in the ordinary manner. Connective -- tissue transplant from the palatine area was successful in mucosal penetration closure.