Morphologic findings in dens evaginatus

10 specimens of dens evaginatus were partly examined by light microscopy, and by scanning electron microscopy. The morphological findings were consistent with the diagnosis of dens evaginatus although they indicated that the morphology of the evagination appears more complex than is seen in decalficied material alone. In two cases SEM revealed the existence of dental hard material within the evagination which in the other cases was filled out by necrotic pulpal material. This probable attempt of repair of the evagination is shortly discussed.