Analysis of temperature increase in swine gingiva after exposure to a Polywave ® LED light curing unit

Light emitting diode (LED) light curing units (LCU) have become one of the most important tools in the clinicians' routine. Although earlier LED LCU generations were considered “cool” lights because they generated less heat than did quartz-tungsten-halogen (QTH) lamps [1–5], later, more powerful LCU versions were capable of generating as much heat as QTH sources [4,6–8]. Most recently, a new generation of LED lamp has been introduced. Different from the previous ge nerations, these polywave® or “dual-peak” (multi-wave, multi-peak) LCUs emit light a broader wavelength range [9] to activate not only traditional photoinitiators, such as camphorquinone, but also alternative photoinitiators [10,11].

Source: Dental Materials - August 18, 2017 Category: Materials Science Authors: Cristiane Maucoski, Driellen Christine Zarpellon, Fabio Andre dos Santos, Leandro Cavalcante Lipinski, Eduardo Bauml Campagnoli, Frederick Allen Rueggeberg, Cesar Augusto Galv ão Arrais Source Type: research