NEGRO woman, 27 years of age, in good health, complained of intermittent pain of two years’ duration in the region of the mental foramen of the mandible on both sides.
Fig.
1.
X-ray examination revealed an unerupted supernumerary tooth on each side in the premolar region (Fig. 1). On one side, the crown was enlarged and showed an abnormal shape; on the other side, the crown had developed into a compound odont,oma. The latter appeared to be made up of three crowns fused together with one root. Such odontomas are t.he result of a fission 01 Three enamel organs developed forming three crowns, the enamel organ. which fused. The remainder of the tooth development resulted in the formation of a single root. UNIVERSITY OP CALIFORNIA, COLLEGE OF DENTISTRY, THE MEDICAL CENTER.