Abstract
From his experience in closing of antroalveolar fistula the author concluded as follows.
I) For the case of smaller fistula the most suitable procedure is after Sasaki-Zange' technique or the transplantation of fascia. The procedure after Sasaki-Zange is performed as follows: after the completion of Caldwell-Luc procedure the mucous membrane of lateral wall of the inferior nasal duct is made to turn towards on the floor of antrum so that it can cover the fistula as a flap. And the procedure of the transplantation of fascia is performed as follows: after the completion of Caldwell-Luc procedure fascia temporalis or fascia lata is transplanted on the floor of antrum and made to obturate the fistula.
II) For the perfect closure of larger fistula a more complicated procedure is required: after the completion of Caldwell-Luc procedure palatal flap containing major palatine artery is superposed upon reversed gingival flap so that the fistula can be covered doubly.
