A comparative study of three glass ionomer base materials.
This study compared the compressive and diametral tensile strength, compressive modulus, shear bond strength to dentin and resin composite, marginal gap between the base and tooth in Class V cavity preparation, and fluoride release of three glass ionomer base materials. In general, visible light-cured (VLC) base materials outperform the autopolymerizing glass ionomer base Ketac-Bond. The compressive modulus is significantly less for the VLC glass ionomer materials Vitrebond and Fuji LC compared to Ketac-Bond. The Fuji LC had greater diametral tensile strength, compressive strength, bond to dentin and bond to resin composite than Vitrebond or Ketac-Bond. The fluoride release of Vitrebond was greater than Ketac-Bond or Fuji LC. The marginal gap at the tooth/base interface was significantly less with the Fuji LC compared to the other two materials.
Burgess
J O
JO
Department of Restorative Dentistry, University of Texas HSC at San Antonio 78284.
Barghi
N
N
Chan
D C
DC
Hummert
T
T
D000704:Analysis of Variance; D003188:Composite Resins; D001840:Dental Bonding; D003736:Dental Cavity Lining; D003804:Dentin; D005459:Fluorides / Q000032:analysis; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D013499:Surface Properties; D013718:Tensile Strength
D003188:Composite Resins; D005899:Glass Ionomer Cements; C061499:Ketac-Bond; C067790:Vitrabond; C084541:Fuji glass-ionomer lining cement; D005459:Fluorides