In an earlier article on this topic,1 I demonstrated the workability of thermo-viscous composites. After warming, the composite can be easily handled for sufficiently long by the practitioner. It is even possible to apply an occlusal stamp to reproduce the preoperative anatomy if it is not compromised. In this article, I will highlight another aspect of the workability of thermo-viscous composites in an everyday but challenging clinical situation: the proximal restoration.