TY - JOUR
T1 - Fracture resistance of amalgam/glass-polyalkenoate open sandwich Class II restorations
T2 - An in vitro study
AU - Roberts, Howard W.
AU - Vandewalle, Kraig S.
AU - Charlton, David G.
AU - Berzins, David W.
PY - 2008/11
Y1 - 2008/11
N2 - Objective: To investigate the effect of two glass-polyalkenoate restorative materials used as root-dentin replacements on the fracture strength of Class II amalgam restorations. Materials and methods: Class II slot preparations extending 2 mm apical to the cemento-enamel junction were made in 30 teeth and randomly assigned to three groups. Group 1 (Control): restored entirely with amalgam (Tytin, Sybron Kerr, Orange, CA, USA). Group 2: The root-dentin area was restored with a viscous conventional glass-polyalkenoate restorative material (Fuji IX GP, GC America, Alsip, IL, USA), and the remainder of the preparation restored with amalgam. Group 3: The root-dentin area was restored with a resin-modified glass-polyalkenoate restorative material (Fuji II LC, GC America) and the remainder restored with amalgam. The amalgam restorations were loaded in compression to failure and the data analyzed using one-way ANOVA (α = 0.05). Results: No significant differences in fracture strength were found. Conclusion: Root-dentin replacement with the tested glass-polyalkenoate materials did not affect the fracture strength of Class II amalgam restorations.
AB - Objective: To investigate the effect of two glass-polyalkenoate restorative materials used as root-dentin replacements on the fracture strength of Class II amalgam restorations. Materials and methods: Class II slot preparations extending 2 mm apical to the cemento-enamel junction were made in 30 teeth and randomly assigned to three groups. Group 1 (Control): restored entirely with amalgam (Tytin, Sybron Kerr, Orange, CA, USA). Group 2: The root-dentin area was restored with a viscous conventional glass-polyalkenoate restorative material (Fuji IX GP, GC America, Alsip, IL, USA), and the remainder of the preparation restored with amalgam. Group 3: The root-dentin area was restored with a resin-modified glass-polyalkenoate restorative material (Fuji II LC, GC America) and the remainder restored with amalgam. The amalgam restorations were loaded in compression to failure and the data analyzed using one-way ANOVA (α = 0.05). Results: No significant differences in fracture strength were found. Conclusion: Root-dentin replacement with the tested glass-polyalkenoate materials did not affect the fracture strength of Class II amalgam restorations.
KW - Amalgam
KW - Fracture strength
KW - Glass polyalkenoate
KW - Open sandwich
KW - Root caries
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U2 - 10.1016/j.jdent.2008.07.001
DO - 10.1016/j.jdent.2008.07.001
M3 - Article
C2 - 18692947
AN - SCOPUS:53749095180
SN - 0300-5712
VL - 36
SP - 873
EP - 877
JO - Journal of Dentistry
JF - Journal of Dentistry
IS - 11
ER -