Incidence and distribution of dehiscences and fenestrations on human skulls

The aim of this study was to determine the incidence and distribution of de hiscences and fenestrations of the alveolar plate. The sample used in the s tudy consisted of 163 adult jaw bones (78 maxillae and 85 mandibles) of a r ecent population from the northwestern Croatia. The skulls are part of the skull collection of The Anatomy Institute, Zagreb, Croatia. The number and location of dehiscences and fenestrations for each tooth area above the tot al number of 2038 teeth were registrated. The total number of 696 (26,67%) dehiscences and 190 (9,32%) fenestrations was measured. Among the maxillary teeth, canines exhibited greatest and most frequent dehiscences and fenest rations. In the mandible, canines were most commonly associated with both d efects, too. It was concluded that the canines were most frequently associa ted with either of the osseous defects.