Slide 55: dentin
Slide 56: dentin dysplasia type II
Slide 57: dentin dysplasia type II
dysplasia type I
Regional Odontodysplasia (ROD, ghost teeth)
This is a sporadic (not inherited) developmental defect involving only a few teeth in a small REGION of the jaw.
Slide # 58 illustrates ROD involving a lower incisor, cuspid and 1st bicuspid teeth.The dentin and enamel are thin and
the pulp huge producing a ghost like appearance. Slide #59 is an example of ROD in the mandible of a 7-year-old boy. It
involves five teeth: two incisors, the cuspid and both bicuspids. Slide #60 is histology of ROD, notice the huge pulp and
thin rim of tooth structure, mostly dentin.
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