INCIDENTS OF PRACTICE A n o d o n t i a o f t h e D e c id u o u s D e n titio n By E. L. M iller,* M .D ., Jena, La. M y w ork requires the exam ination of children, and I h ave m ade in excess of 10,000 such exam inations. H a vin g had one year in dentistry as a prelude to the study o f m edicine, I h a ve an unusual interest in dentition. O f the unusual con ditions that I have found, the outstand ing case is that of a colored child at Jonesville, L a. It has required several m onths fo r me to verify the birth date o f this child, but I have finally done so. She was born J an u a ry i, 1934. I ex am ined her early in F eb ru ary 1942. A t th a t tim e, all of the deciduous teeth were absent and had been replaced by norm al perm anent teeth. In addition, she had the first perm anent m olars and all second perm anent molars, tw enty-eight perfect, norm al teeth. A n d she was b u t a few weeks over 8 years o f age. T h is m ay not be unusual in the an nals of dental history, yet to m e it is odd enough to ju stify this report.
portion of the apex appeared to be incom plete. The patient was referred to me for re moval of the im pacted tooth, but the pain
Fig. 1.— M ig ra tin g im pacted tooth (S ep tem ber 193 9). (X -r a y exam ination by E. B. Stillw ell.)
A M ig r a tin g Im p a c te d T o o t h By W i l l i a m S t a n l e y C a r r i c k , D.D.S., Asbury, N. J. A
g ir l,
aged
16,
p a in s i n t h e b i c u s p i d
c o m p la in e d
of
severe
a r e a o f th e lo w e r le ft
s id e o f t h e m a n d i b l e .
Clinically, examination disclosed no de formity. The mucosa was normal. A ll of the teeth in the left mandible were absent, from the lower left cuspid to the second molar inclusive. A roentgenogram (Fig. 1) disclosed bi cuspid tooth lying horizontally in the body of the mandible with the crown facing distally and encased in a cystic sack. A small *D irecto r of the C atah o u la-L a S a lle Bi-Parish H ealth U n it.
Jour. A.D.A., Vol. 29, December 1, 1942
Fig. 2.— T o o th shown in Figu re 1 (S ep tem ber 1 9 4 1 ). (X -ra y exam ination by R . E. R a n k in .)
subsided and nothing further was done con cerning its rem oval. In Septem ber 1941 , a slight discomfort caused the patient to consult her dentist. C lin ically, no objective symptoms were noted except that the second m olar was at a 4 50 angle lin gually. A roentgenogram disclosed the fact that
2276