Endo-Antral syndrome and various endodontic complications.

The purpose of this paper was to examine the varied impact of the pathological spread of dental sepsis into the adjacent maxillary sinus. This complex of tissue destruction is called Endo-Antral Syndrome; the usual radiographic diagnostic features are identified in the paper. The four different cases presented serve to illuminate a few of the many diagnostic and treatment challenges involved. Emphasis is placed on the utilization of a keen sense of wariness when endodontically treating maxillary posterior teeth whose apexes are close to the sinus. Dental examination should include an appraisal of antral health prior to root canal therapy to best plan treatment and to establish a base line against which to judge subsequent developments.