Correlation between the strength of glass ionomer cements and their bond strength to bovine teeth.
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.
Hibino
Yasushi
Y
Department of Dental Materials Science, Meikai University School of Dentistry, 1-1, Keyakidai, Sakado, Saitama 350-0283, Japan. hibino@dent.meikai.ac.jp
Kuramochi
Ken-ichi
K
Harashima
Atsushi
A
Honda
Muneaki
M
Yamazaki
Atsushi
A
Nagasawa
Yuko
Y
Yamaga
Taniichiro
T
Nakajima
Hiroshi
H
D000268:Adhesiveness; D000704:Analysis of Variance; D000818:Animals; D002417:Cattle; D019245:Compressive Strength; D001840:Dental Bonding; D003743:Dental Enamel; D003799:Dental Stress Analysis; D003804:Dentin; D005899:Glass Ionomer Cements / Q000737:chemistry*; D008422:Materials Testing; D033081:Shear Strength; D018709:Statistics, Nonparametric; D013718:Tensile Strength
C469235:DNT ionomer cement; D005899:Glass Ionomer Cements; C062270:Shofu Hybond; C084541:Fuji glass-ionomer lining cement