Estudio in vitro de la dinámica de fotopolimerización de las resinas Bulk Fill, con lámparas de luz led.

Abstract

The composition of resins, the curing light, the exposure time and the resin increments are important factors for the optimal polymerization of the resin increments. Objective: Establish the necessary photopolymerization time for Bulk-Fill resins with LED curing lamps. Materials and methods: For the present study, 3 light-curing lamps were used, Valo Cordless, Elipar Deep Cure L, Blue Phase N G4 Ivoclar Vivadent, later in a stainless steel mold, with a hole, it´s depth of 5mm and 3mm in diameter, 6 were created. resin groups with 5mm increments each, which are light-cured in three different times, 10 seconds, 20 seconds, 30 seconds, at 0mm and 2mm from the tip to the Filtek Bulk Fill A1 resin from the 3M. Results: The resin group with the greatest depth of photopolymerization was those of the Elipar Deep Cure L lamp in the samples with exposure at a distance of 0 and 2mm, with results greater than 4.93mm. The other two lamps performed better at a 0mm exposure distance. Conclusion: The necessary polymerization time for the resins depends on the distance at which the resins were polymerized.