Читать книгу Handbook of Oral Pathology and Oral Medicine - S. R. Prabhu - Страница 49

 Taurodontism:Commonly detected on routine radiographyInvolved teeth presume a rectangular shapeThe pulp chamber is exceedingly large with a greater apical–occlusal height than normalThe tooth lacks the usual constriction at the cervical regionRoots are exceedingly short and trifurcation or bifurcation may be seen a few millimetres above the apices of the roots (Figure 1.5a)

 Dilaceration:Radiographically, detected as mesial or distal bend in the root (Figure 1.5b)Periodontal ligament space is normalDetected on routine radiographyFigure 1.5 (a)Taurodontism of the mandibular first molar shows abnormally large pulp chamber and short roots. (b) Dilaceration of an extracted tooth shows abnormal bend in the roots.(source: by kind permission of Professor Charles Dunlap, Kansas City, USA.)