caa a22 4500 475782364 CHVBK 20180406123648.0 cr unu---uuuuu 170329e20000601xx s 000 0 eng 10.1023/A:1008929923531 doi (NATIONALLICENCE)springer-10.1023/A:1008929923531 The effect of storage in aqueous solutions on glass-ionomer and zinc polycarboxylate dental cements [Elektronische Daten] [J. Nicholson, A. Wilson] Cylindrical specimens (dimensions 6 mm diameter×12 mm height) of glass-ionomer and of zinc polycarboxylate dental cement have been stored in aqueous solutions for periods of 24 h, 1 week and 1 month. The solutions were of varying composition and affinity for water, and storage in them resulted in fluctuations in mass of the cements, an effect which was attributed to differences in the partitioning of water between the solutions and the cement specimens. Unlike the zinc polycarboxylate, the glass-ionomer gained mass in most of the solutions examined (except Na2SO4), showing it to have a much greater affinity for water than the zinc polycarboxylate. Despite the fluctuations in water uptake by the glass-ionomer, and loss of water by the zinc polycarboxylate, no statistically significant differences in compressive strength were recorded in any solution at any storage time. This contrasts with results reported previously for zinc polycarboxylates using smaller specimens, showing that specimen size has an influence on the interaction of cements with storage solutions. ©2000 Kluwer Academic Publishers Kluwer Academic Publishers, 2000 Nicholson J. Dental Biomaterials Department, Guy's, King's and St Thomas' Dental Institute, Floor 17, Guy's Tower, Guy's Hospital, London Bridge, SE1 9RT, London, UK aut Wilson A. Dental Biomaterials Department, Guy's, King's and St Thomas' Dental Institute, Floor 17, Guy's Tower, Guy's Hospital, London Bridge, SE1 9RT, London, UK aut Journal of Materials Science: Materials in Medicine Kluwer Academic Publishers 11/6(2000-06-01), 357-360 0957-4530 11:6<357 2000 11 10856 https://doi.org/10.1023/A:1008929923531 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008929923531 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nicholson J. Dental Biomaterials Department, Guy's, King's and St Thomas' Dental Institute, Floor 17, Guy's Tower, Guy's Hospital, London Bridge, SE1 9RT, London, UK aut NATIONALLICENCE 700 1- Wilson A. Dental Biomaterials Department, Guy's, King's and St Thomas' Dental Institute, Floor 17, Guy's Tower, Guy's Hospital, London Bridge, SE1 9RT, London, UK aut NATIONALLICENCE 773 0- Journal of Materials Science: Materials in Medicine Kluwer Academic Publishers 11/6(2000-06-01), 357-360 0957-4530 11:6<357 2000 11 10856 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer