Comprehensive knowledge about the normal anatomy of the root canal system and its variations of the teeth are essential for
the clinician as aberrations in number, shape and size are very common. Various diagnostic aids like preoperative radiographs in
multiple angulations or the Cone Beam Computed Tomography can help the clinician in location and effective debridement of the
root canal system. This case report describes a rare occurrence of 7 canals in a maxillary first molar in which CBCT was used as an
additional diagnostic tool.