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OCR Page 1 of 24FOISONING FROM DIAL PAINTING
Frederick B. Flinn, Ph.D.
Ass't Prof. Physiology in Industrial Hygiene
College of Physicians and Surgeons
Columbia University, N.Y.C.
Seven girls employed at one time in painting dials with a luminous mater-
ial have died with pathologic conditions that require some explanation as to the
cause and an examination of the exposure to whioh they were subjected. The path
ologio condition referred to consisted of a necrosis of the jaw whi oh has been
observed genorally to follow the removal of a tooth or dental intervention in the
form of treatment of some kind. Severe anemia sets in terminat ing in death. This
holds true for six of the cases. The seventh case did not develop necrosis of the
jaw, but showed the anemic condition. It is commonly reported by her associates
that she had enten sea food the Sunday before her death which had rendered her ill.
Besides the cases which have resulted in death there have beon several cases of
jaw necrosis among the girls that have been successfully treated.
The necrosis of the jaw in these cases is said to differ from phosphorus
poisoning or ordinary necrosis or typical osteomyletis only in the number of areas
involved in the first place, and the remote location of the areas from one another.
After operative procedure these cases usually tale on a very rapid form of neoro-
sis whio necessitates oporative procedures at woekly periods in order to out down
the sepsis. In the later stages of the disease those necrotio areas present a
liquidfaction which resembles more or less of a gelatinous character rathor than a
bony disintegration. One dentist speaics of a case which he has successfully treated
as alow grade infection of the mandible. This necrotic condition diffors in his
opinion from the ordinary necrosis found in the jaw principally in the fact that
it persisted over such a long period of time and showed a tendeney to recur unless
free drainage was at all times maintained, meaning by this that if the wound
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