Studies on the composition of human dental calculus

Determination of some major and trace elements by instrumental neutron activation analysis
  • A. Molokhia
  • G. S. Nixon


The concentrations of Ca, Mg, Na, K, Cl, Zn, Sr, Mn, Ba, Br, and Au were determined in individual samples of dental calculus collected from patients resident in the Manchester area. The method used was instrumental neutron activation analysis (INAA), combined with gamma-spectrometry. The highest and lowest values of Sr were found in calculus from patients of Asian origin. No differences were found in the elements studied with regard to sex or age. Individual variations were highest in Au and lowest in Ca.


Physical Chemistry Inorganic Chemistry Activation Analysis Individual Variation Neutron Activation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    P. GRØN, G. J. VAN CAMPEN, I. LINDSTROM, Archs. Oral Biol., 12 (1967) 829CrossRefGoogle Scholar
  2. 2.
    R. Z. LE GEROS, I. L. SHANNON, J. Dent. Res., 58 (1979) 2371.PubMedGoogle Scholar
  3. 3.
    R. Z. LE GEROS, J. Dent. Res., 53 (1974) 45.PubMedGoogle Scholar
  4. 4.
    D. H. RETIEF, P. E. CLEATON-JONES, J. TURKSTRA, H. J. SMIT, P. J. PRETORIUS, J. Dent. Res., 51 (1972) 807.Google Scholar
  5. 5.
    D. H. RETIEF, P. E. CLEATON-JONES, J. TURKSTRA, H. J. SMIT, J. Periodont. Res., 8 (1973) 263.PubMedGoogle Scholar
  6. 6.
    M. LUNDBERG, R. SÖREMARK, H. THILANDER, J. Periodont. Res., 1 (1966) 245.Google Scholar
  7. 7.
    M. KNUUTTILA, R. LAPPALAINEN, V. KONTTURI-NARHI, Scand. J. Dent. Res., 87 (1979) 192.PubMedGoogle Scholar
  8. 8.
    P. A. BAEDECKER, Anal. Chem., 43 (1971) 405.CrossRefGoogle Scholar
  9. 9.
    R. SÖREMARK, O. INGELS, H. PLETTM, K. SAMSAHL, Acta Odont. Scand., 20 (1962) 215.PubMedGoogle Scholar
  10. 10.
    M. M. MOLOKHIA, A. MOLOKHIA, unpublished materials.Google Scholar
  11. 11.
    J. D. CROSS, M. DALE, H. SMITH, L. B. SMITH, Radiochem. Radional. Letters, 35 (1978) 291.Google Scholar

Copyright information

© Akadémiai Kiadó 1984

Authors and Affiliations

  • A. Molokhia
    • 1
  • G. S. Nixon
    • 1
  1. 1.Department of Conservative DentistryUniversity of Manchester, Dental HospitalManchester(England)

Personalised recommendations