“PermaFlo DC, a composite luting resin, has some unique capabilities. It has been put under the category of “dual-cure” because that’s well known to dentists. However, in reality, an actual dual-cure product would be able to be a stand-alone light cure product. Or, it would be a stand-alone chemical cure product in two separate, disconnected syringes,” Dr. Fischer, Ultradent CEO emeritus. “The challenge with that, for years, was that all ‘dual-cure composites’, if used only in the chemical cure mode, would never polymerize as completely as they should, and would never come out as strong as they could if they had been light activated.” He continues, “What dentists really need a ‘dual-cure,’ where adequate light can’t reach in the restoration to assure quality polymerization, like with an opacious crown or a restoration in the deep interproximal area, sub gingivally.”

Like with many other dental or medical treatments, people have wondered if teeth whitening during pregnancy and breastfeeding is safe.

Recent articles suggest that there is a certain monomer responsible for quality bonds, but the truth is that the strength of a bond lies squarely in the balance of the chemistry of the product, rather than just one “magical ingredient.” Neil Jessop, Director of Research and Development for Ultradent Products, Inc. says, “It isn’t one specific monomer that promotes such high-level bond strengths, but the balance of chemistry and a synergy of components working together that affords stability, repeatability, and reliable, long-term bonds.”

The average mouth opening distance of an adult male patient is 30mm1. This limited range, coupled with the posterior placement of many restorations, makes it nearly impossible to position a traditional curing light with an oversized head or angled light guide. This typically forces the operator to tilt their light to a 45-60 degree angle, making direct irradiation of light on the restoration in posterior teeth nearly impossible.