"Abnormalities of Teeth"
– 4 –
Charles Dunlap, DDS
Sept. 2004
Hypercementosis, screwdriver incisors and mulberry molars:
Hypercementosis is seen in Slides #20 and #21. Note the thick mantle of cementum that makes the root look fat. (a nation-
al board pearl: If the jaws are involved in Paget disease of the skeleton (osteitis deformans), the teeth may show hyperce-
mentosis. But in practice, Paget disease seldom involves the jaws. Somewhere long ago in a faraway place, a case of
osteitis deformans of the jaws with hypercementosis was reported and has endured in dental literature.) Slides #22 and
#23 also show dental defects that have endured in dental literature but have virtually disappeared in practice. They illus-
trate “Screwdriver” incisors and “Mulberry molars”, dental defects seen in congenital syphilis and caused by direct inva-
sion of tooth germs by Treponema organisms (yes, Treponema pallidum can pass through the placenta).*** Slides #22 and
#23 are not UMKC slides and are not to be copied or published.
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