5/Box3M ESPE Iso-Form Temporary (provisional) Crowns are made of a high purity tin-silver alloy. These preformed crowns are soft, non-galvanic and tasteless and indicated for adult posterior applications. Short-term coverage for molar and bicuspid Prefinished, contoured and belled to save placement time Soft tin/silver alloy retains shape of preparation and is easily stretched and burnished to fine prep margins Faster placement than acrylic and chemical resin for single units for a quicker procedure