Pages 561-565, Language: EnglishCroll / KillianLight-hardening glass-ionomer-resin restorative cement was introduced in 1992. Besides having the advantage of rapid initial hardening by application of visible light, the new formulations have better physical properties than do self-hardening glass-ionomer restorative materials. This article documents use of one such cement for restoration of Class II carious lesions in primary molars. The rationale for use of the new cement is reviewed.