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Figure 9: Secondary polymerization. The aim at this stage is to achieve effective polymerization of the margins, taking care not to overheat the teeth. The surfaces of the teeth are thus light-cured for about 20s, at low to moderate power (500 to 1000mW/cm2) under air cooling. At that stage the final polishing of the light-cured margins can be initiated. A complementary photopolymerization is finally achieved under constant Glycerin/water cooling, using preferably two lamps and criss-crossing the light be longer caption possible. Figure 9: Secondary polymerization. The aim at this stage is to achieve effective polymerization of the margins, taking care not to overheat the teeth. The surfaces of the teeth are thus light-cured for about 20s, at low to moderate power (500 to 1000mW/cm2) under air cooling. At that stage the final polishing of the light-cured margins can be initiated. A complementary photopolymerization is finally achieved under constant Glycerin/water cooling, using preferably two lamps and criss-crossing the light be longer caption possible

Figure 9: Secondary polymerization. The aim at this stage is to achieve effective polymerization of the margins, taking care not to overheat the teeth. The surfaces of the teeth are thus light-cured for about 20s, at low to moderate power (500 to 1000mW/cm2) under air cooling. At that stage the final polishing of the light-cured margins can be initiated. A complementary photopolymerization is finally achieved under constant Glycerin/water cooling, using preferably two lamps and criss-crossing the light be Figure 8: Selective tack-curing. A short, low intensity photopolymerization (approx. 300-500 mW/cm2 for 5 seconds) locks the prosthetic part in position. There is no need to hold it under pressure and the operator(s) have an extra hand free to continue luting. Optional use of a collimating tip to reduce the area exposed to the first photopolymerization. Where access permits, a collimating tip is attached to the end of the light curing lamp (in this case Valo, Ultradent™,). This allows the curing of the bo Figure 8: Selective tack-curing. A short, low intensity photopolymerization (approx. 300-500 mW/cm2 for 5 seconds) locks the prosthetic part in position. There is no need to hold it under pressure and the operator(s) have an extra hand free to continue luting. Optional use of a collimating tip to reduce the area exposed to the first photopolymerization. Where access permits, a collimating tip is attached to the end of the light curing lamp (in this case Valo, Ultradent™,). This allows the curing of the bo