Results 241 to 250 of about 54,447 (288)

Water dynamics in glass ionomer cements

The European Physical Journal Special Topics, 2016
Glass ionomer cements (GIC) are an alternative for preventive dentistry. However, these dental cements are complex systems where important motions related to the different states of the hydrogen atoms evolve in a confined porous structure. In this paper, we studied the water dynamics of two different liquids used to prepare either conventional or resin-
Marcella C. Berg, Marcella C. Berg, Heloisa N. Bordallo, Heloisa N. Bordallo, Ana Raquel Benetti, Tilo Seydel, N.C.R. Momsen, Jens Christian Brings Jacobsen, Jens Christian Brings Jacobsen, Mark T. F. Telling, Mark T. F. Telling   +10 more
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Leaching from glass ionomer cements

Journal of Oral Rehabilitation, 1994
SummaryThis study compared the electrical conductivities, pH and leached ion (F−, Ca, Al, Si) concentrations in supernatant liquids obtained from four glassionomer cements, a buffered ionomer cement, a polycarboxylate cement and a zinc phosphate cement, at three different levels of settings. The result indicated that the measured parameters are highest
M.S. Bapna, H.J. Mueller
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Glass ionomer cements: dispensing and strength

Australian Dental Journal, 1985
Abstract— The use of the powder and liquid dispensers provided by the manufacturers to achieve an optimal mix of glass ionomer cement was examined. The dispensers should be regarded only as an approximate guide to the ratio of powder and liquid required.
Theresa C. C. Wong, Roland W. Bryant
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Glass polyalkenoate (glass-ionomer) cements: a review

Journal of Dentistry, 1986
Abstract This paper reviews the history and development of glass polyalkenoate (glass-ionomer) cements from their inception at the Laboratory of the Government Chemist during the 1960s to the present day.
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Ion processes in glass ionomer cements

Journal of Dentistry, 2006
Ion processes are involved in many aspects of glass-ionomer cements. The ions released from the glass take part in the formation of the cement matrix. Although this process has been investigated, particularly using model cement systems, no study provides a complete matrix composition.
Jill Ann Williams, Richard William Billington, G J Pearson   +2 more
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Glass ionomer cements and dental pulp

Dental Traumatology, 1991
Abstract Only slight pulp reactions to glass ionomer cements occurred when inserted in Class V cavities of dog teeth. Most inflammatory reactions were due to bacteria at the tooth/filling interface. Special dentin reactions were noted in almost half the teeth, including hematoxyphilic bands in the dentin and a disturbance of the mineralization pattern ...
Leif Tronstad, I. Nordahl, I. A. Mjör
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Working qualities of glass-ionomer cements

The Journal of Prosthetic Dentistry, 1981
G lass-ionomer cements, relatively new and promising materials, are presently advocated for clinical use as Class III and V restorative materials, fissure sealants, and cementing agents for castings.‘-7 The setting mechanism of the glass ionomers has been characterized by Crisp et al.*-lo The physical properties and resistance to solubility appear ...
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Chemistry of glass-ionomer cements: a review

Biomaterials, 1998
Studies of the setting of glass-ionomer cements have been carried out for over twenty years, and there is now a considerable body of information concerning the steps that lead to the conversion of a freshly mixed cement paste into a solid, durable dental restorative. This paper reviews these studies, paying particular attention to more recent work. The
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Biological Evaluation on Glass Ionomer Cement

Journal of Dental Research, 1979
Biological properties of a new dental cement of glass ionomer cement were compared with other types of conventional cement. The biological test was carried out by tissue culture method and animal examination. The culture cells showed weaker reaction to the glass ionomer cement than zinc oxide-eugenol or polycarboxylate cement.
Hiroshi Oshima, Yoshitsugu Imanishi, Haruyuki Kawahara   +2 more
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Pulpal effects of glass ionomer cements

International Endodontic Journal, 1984
Summary. The incidence of pulpal damage beneath cavities filled with ASPA, Chemfil and Chembond was studied in class I cavities in human premolar teeth after 1–10 days, 11–30 days, and 31 or more days. Cavities filled with Kalzinol or zinc oxide/eugenol acted as controls.
Roger M. Browne, T. Sorahan, C. G. Plant, A. S. Britton, P. J. Knibbs   +4 more
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