Transantral, subperiosteal resection of the palatal root of maxillary molars

A resection method for the palatal root of the maxillary molar is presented, in which the tip of the root is exposed by widening the resection opening of the buccal roots into the maxillary sinus and by lifting the periosteum from its underlying tissue above the tip of the root. The method suits cases in which the mucous membrane of the sinus is healthy and the floor of the sinus extends between the roots or the tip of the root is close to the sinus. By this method, palatal opening and damage to the mucous membrane of the sinus are avoided. Pain and discomfort are minimal. In addition, the topographic anatomy of the floor of the maxillary sinus and the dental roots and radiographic methods suitable for diagnostics are discussed.