Pulpal and radicular changes following maxillary subapical corticotomy.

Pulpal and radicular changes after subapical corticotomy in combination with posterior transfer of the maxilla were studied histopathologically using monkey jaws. When the surgical procedures were successful, the pulp tissues were kept alive, even though some slight atrophy and degeneration appeared. In some cases, however, severe reticular atrophy occurred which might be due to anaemia during operations.