Clinical experiences with light-hardened glass-ionomer-resin restorative cement indicate that it has improved properties compared to self-hardening glass-ionomer cements. Wear resistance and other material strengths are improved so that the material can be considered for conservative Class I restorations in permanent teeth. This article details occlusal restoration of a permenant molar with one light-hardened glass-ionomer-resin cement and discusses the potential for such restorations.