Effect of coefficient of thermal expansion on microleakage.
This study examines the relationship between thermal coefficient of expansion and microleakage. Six restorative materials with varying coefficients of thermal expansion were thermocycled in basic fuschin dye and compared for relative microleakage. The use of dental restorative materials with low coefficients of thermal expansion such as glass ionomer can control microleakage.
Bullard
R H
RH
Department of Biomaterials, University of Alabama School of Dentistry, Birmingham 35294.
Leinfelder
K F
KF
Russell
C M
CM
D000180:Acrylic Resins; D003188:Composite Resins; D003723:Dental Amalgam; D003737:Dental Cavity Preparation; D003738:Dental Cements; D003763:Dental Leakage / Q000175:diagnosis*; D003793:Dental Restoration, Permanent; D005899:Glass Ionomer Cements; D006801:Humans; D012117:Resins, Synthetic; D013816:Thermodynamics; D015035:Zinc Oxide-Eugenol Cement
D000180:Acrylic Resins; D003188:Composite Resins; D003738:Dental Cements; D005899:Glass Ionomer Cements; D012117:Resins, Synthetic; D015035:Zinc Oxide-Eugenol Cement; D003723:Dental Amalgam