A manual of dental anatomy, human and comparative / by Charles S. Tomes ; edited by H.W. Marett Tims and A. Hopewell-Smith.

  • Tomes, Charles S. (Charles Sissmore), Sir, 1846-1928.
Date:
1914
Catalogue details

Licence: In copyright

Credit: A manual of dental anatomy, human and comparative / by Charles S. Tomes ; edited by H.W. Marett Tims and A. Hopewell-Smith. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

    76/649 (page 64)
    Subject to the above correction the following may be accepted as giving the constitution of dentine. Von Bibra (2) gives the following analysis of perfectly dried dentine : Organic matter (tooth cartilage) . 27*61 Fat 0*40 Calcium phosphate, and fluoride . 66*72 Calcium carbonate . . . . 3'36 Magnesium phosphate . . .1*08 Other salts 0'83 Von Bibra gives another analysis : Cartilage 20*42 Fat 0*58 Salts 1-00 Magnesium phosphate . . . 2*49 Calcium phosphate, and fluoride . 67*54 Calcium carbonate . . . . 7*97 And Berzelius (x) gives: Gelatine and water . . . 28*00 Sodium salts 1*50 Magnesium phosphate . . . 1*00 Calcium phosphate . . . . 62*00 Calcium fluoride .... 2*00 Calcium carbonate . . . . 5*50 Gallippe (6) gives : Water and organic matter . . 25*29 Mineral matter, consisting of— Soluble ash (alkaline chlorides, and phosphates) . . . 0*54 Calcium carbonate . . . . 0*35 Magnesium carbonate . . 1*13 Calcium 45*11 Magnesium . . . .1-67 Phosphoric acid . . . . 23*70 Silicates 0*41 Undetermined . . . . 1*8 The dentine of many mammals is very much richer in magnesium phosphate than human dentine. Even the latter,