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| Nature 197, 486 - 487 (02 February 1963); doi:10.1038/197486b0 |
|
Constituents of Dental Calculus from Sheep
AUGUSTA UNMACK & S. L. ROWLES
Chemical Laboratory, Royal Veterinary and Agricultural College, Copenhagen.
Medical Research Council External Staff, School of Dental Surgery, Birmingham.
WHILE the crystalline composition of dental calculus in man is well elucidated, very little is known about such calculus in animals. We have had the opportunity of comparing the results of X-ray diffraction examinations of samples of dental calculus from sheep from Dundee, Scotland, and from Greenland. Powder diagrams were taken with copper K
-radiation in cameras of the Guinier type.
- Tovborg Jensen, A. , and Danø, M. , J. dent. Res., 33, 741 (1954). | PubMed | ChemPort |
- Tovborg Jensen, A. , and Gebhard Hansen, K. , Experientia, 13, 311 (1957). | PubMed | ChemPort |
- Bjerrum, N. , reprinted in English in Selected Papers, 245 (Munksgaard, Copenhagen, 1949).
- McDougall, E. I. , Biochem. J., 43, 99 (1948). | ISI | ChemPort |
- Ghigi, E. , Arch. ital. sci. farmacol., No. 1, 11 (separate) (1938) (Chem. Abstr., 36, 5876 (1942)).
- Rowles, S. L. (unpublished observations).
© 1963 Nature Publishing Group
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