Incision in the gingival margin for approaching the maxillary sinus: a comment after an eight years experience

After an eight years experience performing an incision in the free border of the gum (the Neumann's incision) to approach the maxillary sinus - the first written communication had been six years before (Rev. Brasil. Oto-Rino-Laring., 40:398, 1974) - the authors describe the details of the technique justifying also their enthusiasm for its almost exclusive use now a days.