Summary
Chronic fluorosis alters bone structure, leads to odd exostosis, to osseous appositions, to ossification of ligaments and tendons and their insertions. This can cause pain and discomfort. Radiological examination usually leads to the correct diagnosis; the most constant changes were found in films of elbows and forearms. Such films may be useful in the diagnosis of industrial fluorosis and perhaps for detecting undesirable effects of prolonged fluoride therapy. It seems clear that man
Summary
The authors record the results of their clinical examination of 78 workers engaged in the crushing and refining of cryolite. Beside silicosis -- to as much as the second degree -- which was present in 39, the following three diseases were found to be common in these workers:
1) a curious sclerotic affection of bones, ligaments, and muscular attachments, probably due to the deposition of calcium-fluoride in the bones The authors believe that the occurrence of this disease in man has