Correlation between the Strength of Glass Ionomer Cements and Their Bond Strength to Bovine Teeth

Abstract

This study examined the possible correlation between the strength of glass ionomers and their adhesive strength to bovine teeth.The shear bond strengths of three different brands of glass Ionomer mixed at four different P/L ratios to bovine teeth were measured 24 hours after the cement specimens were prepared.The correlation between shear bond strength and mechanical strength reported in our previous study was also examined. No significant (p>0.05) increases in the bond strength to bovine teeth were found in any of the cements when the mixing ratio increased.The present study showed no significant (p>0.05) correlation between mechanical strength of cement and its bond strength to bovine teeth. Rather than trying to increase the strength of the cement, it would be more effective to enhance the adhesive bond strength through procedures such as surface conditioning or cleaning of the tooth structure when glass ionomers are used as luting agents.

Effect of Thermocycling on Interfacial Gap-formation in Class V Cavities and Mechanical Properties of Spherical Silica Filler Addition to Resin-modified Glass Ionomer Restorations

“…While a previous study showed that there was no significant correlation between mechanical strength of cement and its bond strength to bovine teeth 29 , this study yielded different results. In particular, significant correlations were observed between shear bond strength to tooth enamel and flexural strength at the immediate condition, after 24-hour storage, and after thermocycling.…”

Effect of Water on Shear Strength of Glass Ionomer Cements for Luting

“…Therefore, the mechanical properties of cements, as well as their adhesive properties, are important factors that influence the durability of restorations in the oral cavity. The mechanical properties of dental cements have been reported in many studies [1][2][3] . In particular, several researchers have investigated the shear strength of restorative materials using the shear punch test [4][5][6][7][8][9][10][11][12] .…”

O Uso de Dentes Bovinos como Substitutos de Dentes Humanos em Pesquisas Odontológicas: Uma Revisão da Literatura

“…E isto, provavelmente, também ocorre na dentina, de modo que o esmalte bovino é mais poroso que o esmalte humano estando presente uma alta difusão, razão do progresso da lesão de cárie artificial. Pesquisa semelhante foi feita por Hibino et al 22 quando avaliaram a força de adesão dos cimentos de ionômero de vidro ao esmalte bovino. Diaset al 23 estudaram a força de adesão de três adesivos ao esmalte bovino através do preparo com broca diamantada, broca carbide e desgaste por lixa de papel.…”

“…Apesar da força de adesão ao esmalte bovino ser 35% mais fraca quando comparada ao esmalte humano 2 , outros estudos mostraram que os dentes humanos podem ser tranqüilamente substituídos pelos dentes bovinos em muitos tipos de pesquisa, principalmente naquelas sobre colagem, adesividade e força de tração [22][23][24][25] . Por outro lado, outro estudo mostrou que a adesividade no esmalte bovino pode ser maior que em esmalte humano 30 .…”