In the limelight: Ivocerin light initiator
Schaan, Liechtenstein – 26 September 2013
The new R&D Report from Ivoclar Vivadent focuses on the patented light initiator Ivocerin, which is a component of the sculptable bulk fill composite Tetric EvoCeram Bulk Fill. The Report demonstrates that Ivocerin allows a slightly higher composite opacity due to its high quantum yield. Therefore, a curing depth of 4 mm, esthetics and short curing times are now compatible.
The R&D Report “Ivocerin ‒ a milestone in composite technology” presents a collection of scientific contributions regarding the light initiator Ivocerin. The first article provides an overview of photopolymerization in dentistry, focusing on the chemical basics of photopolymerization and the synthesis and development of the initiator system. A further article in the Report compares the properties of Ivocerin with those of the conventionally used light initiator camphorquinone. This comparison showed that the best results were obtained when Ivocerin was used in combination with camphorquinone/amine – as is the case with Tetric EvoCeram Bulk Fill. Due to this initiator combination, an efficient depth of cure in increments of up to 4 mm is possible.
Tetric EvoCeram Bulk Fill is a further development of the tried-and-tested Tetric EvoCeram, the universal nanohybrid composite for anterior and posterior restorations. The innovative characteristics of Tetric EvoCeram Bulk Fill are described in detail in the Report. The summary of the Report states that Ivoclar Vivadent has developed a material which can be cured in 4-mm increments in 10 seconds and which demonstrates very good results regarding surface quality, working time and shade adaptation. In addition to materials science investigations, the Report includes results of laboratory simulation tests and concludes with an evaluation of Tetric EvoCeram Bulk Fill in clinical use.
Tetric EvoCeram Bulk Fill
Tetric EvoCeram Bulk Fill is a sculptable bulk fill composite for the restoration of cavities in layers of up to 4 mm. It contains the patented light initiator Ivocerin, which is several times more reactive than conventional light initiators. Ivocerin is a polymerization booster that enhances the initiator system and allows Tetric EvoCeram Bulk Fill to be reliably cured in just 10 seconds (≥ 1,000 mW/cm2). In contrast to many other bulk fill composites, Tetric EvoCeram Bulk Fill provides an enamel-like translucency of 15%.
The Ivocerin Report can be ordered under firstname.lastname@example.org.
Tetric EvoCeram® and Ivocerin® are registered trademarks of Ivoclar Vivadent AG.