Dental Materials
Volume 23, Issue 4 , Pages 415-424 , April 2007

The determination of phosphorus containing compounds in dental casting investment products by 31P solid-state MAS-NMR spectroscopy

  • Sheelagh N. Scrimgeour

      Affiliations

    • Dental School, University of Dundee, Dundee DD1 4HN, Scotland, UK
    • ,
  • John A. Chudek

      Affiliations

    • School of Life Sciences, University of Dundee, Dundee, Scotland, UK
    • ,
  • Charles H. Lloyd

      Affiliations

    • Dental School, University of Dundee, Dundee DD1 4HN, Scotland, UK
    • Corresponding Author InformationCorresponding author. Tel.: +44 1382 635979; fax: +44 1382 225163.

Received 15 December 2005 ,Accepted 10 February 2006.

References 

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  2. Earnshaw R. Personal communication. University of Sydney (Emeritus); 2003.
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  4. Nieman R, Sarma AC. Setting and thermal reactions of phosphate investments. J Dent Res. 1980;59:1478–1485
  5. Higuchi H, Matsuya S, Yamane M. Thermal behaviour of phosphate-bonded investment. Part 2: reactions of the systems of MgO–MgNH4PO4·6H2O and MgO–NH4H2PO4. Shika Rikogaku Zasshi. 1982;23:6–11
  6. Wakasa K, Yamaki M. Thermoanalytical characteristics of powders in dental casting investment. J Mater Sci: Mater Med. 1992;3:141–144
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  10. Aramendia MA, Borau V, Jiminez C, Marinas JM, Romero FJ, Ruiz JR. XRD and solid-state NMR study of magnesium oxide–magnesium orthophosphate systems. J Solid State Chem. 1998;135:96–102
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  17. Soudee E, Pera J. Mechanism of setting in magnesia-phosphate cements. Cem Concr Res. 2000;30:315–321
  18. Sugama T, Kukacka LE. Characteristics of magnesium polyphosphate cements derived from ammonium polyphosphate solutions. Cem Concr Res. 1983;13:499–506
  19. Sugama T, Kukacka LE. Magnesium monophosphate cements derived from di-ammonium phosphate solutions. Cem Concr Res. 1983;13:407–416
  20. Abdelrazig BEI, Sharp JH, El Jazairi B. The chemical structures of mortars made from magnesia-phosphate cement. Cem Concr Res. 1988;18:415–425
  21. Lloyd CH, Yearn JA, Cowper GA, Blavier J, Vanderdonckt M. Measurement of the setting expansion of phosphate bonded investment materials: part 1—development of the casting-ring test. J Oral Rehabil. 2004;31:703–709
  22. Abdelrazig BEI, Sharp JH. A discussion of the papers on magnesia-phosphate cements by T Sugama and LE Kukacka. Cem Concr Res. 1985;15:921–922
  23. Finch T, Sharp JH. Chemical reactions between magnesia and aluminium orthophosphate to form magnesia-phosphate cements. J Mater Sci. 1989;24:4379–4386
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  25. Higuchi H, Matsuya S, Yamane M. Thermal behaviour of phosphate-bonded investment. Part 1: thermal behaviour of MgNH4PO4·6H2O. Shika Rikogaku Zasshi. 1982;23:1–5
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PII: S0109-5641(06)00054-6

doi: 10.1016/j.dental.2006.02.010

Dental Materials
Volume 23, Issue 4 , Pages 415-424 , April 2007

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