A novel acrylic copolymer for a poly(alkenoate) glass-ionomer cement



The interest in the clinical use of polyalkenoate cements stems mainly from their behavior as bioactive adhesive materials with therapeutic action. Glass-ionomer cements set by an acid-base reaction between a degradable glass and a poly(alkenoic acid) and the therapeutic action is related to the release of fluoride ions which are present in the hardened cement that show a sustained release over years, responsible for caries inhibition in teeth. Conventional glass-ionomers, however, suffer from some disadvantages such as short working time, initial moisture sensitivity and prone to desiccation after setting and are generally brittle. In the present study, a poly(alkenoic acid) copolymer was synthesized based on acrylic acid and 2-hydroxyethylmethacrylate (HEMA) using azobisisobutyronitrile as the initiator and characterized. The acid–base reaction was carried out by reacting aqueous solutions of the new copolymer (40 and 60%) with a commercial aluminofluorosilicate glasses as used in conventional glass-ionomer cements. The results showed that the copolymer of HEMA and acrylic acid was a viable poly(alkenoic) acid for formation of glass-ionomer cements.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    A. D. Wilson and B. E. Kent, J. Appl. Chem. Biotechnol. 21 (1971) 313.Google Scholar
  2. 2.
    G. J. MountPreservation and restoration of tooth structure (Mosby International Ltd, 1998).Google Scholar
  3. 3.
    A. D. Wilson and J. W. NicholsonAcid 3-Base Cements: Their Biomedical and Industrial Applications (Cambridge University Press, Cambridge, England, 1993).Google Scholar
  4. 4.
    A. O. Akinmade and J. W. Nicholson, Br. Ceramic Transactions 93 (1994) 85.Google Scholar
  5. 5.
    J. W. Nicholson and P. Croll, Quint. Int. 28 (1997) 705.Google Scholar
  6. 6.
    E. A. Wasson and J. W. Nicholson, Br. Polym. 23 (1990) 179.Google Scholar
  7. 7.
    S. Deb and J. W. Nicholson, J. Mater. Sci. Mater. in Med. 10 (1999) 471.Google Scholar
  8. 8.
    BS Standards BS 6039, 1981, London, British Standards Institution.Google Scholar
  9. 9.
    S. Crisp, M. A. Pringuer, D. Wardleworth and A. D. Wilson, J. Dent. Res. 53 (1973) 1414.Google Scholar
  10. 10.
    J. W. Nicholson, P. J. Brookman, O. M. Lacy and A. D. Wilson, ibid. 67 (1988) 1450.Google Scholar
  11. 11.
    Nicholson et al. (unpublished report for British Council, 1996).Google Scholar
  12. 12.
    S. Deb, M. Braden and W. Bonfield, Biomaterials 16 (1995) 1095.Google Scholar
  13. 13.
    J. W. Nicholson, Chem. Soc. Rev. 23 (1994) 53.Google Scholar
  14. 14.
    P. V. Hatton and I. M. Brook, Br. Dent. J. 173 (1992), 275.Google Scholar

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  1. 1.Department of Biomaterials, Floor 17 Guy's TowerGKT Dental Institute, King's College London, London BridgeLondonUK
  2. 2.Instituto de Ciencia y Tecnologia de PolimerosMadridSpain

Personalised recommendations