A curing light for dentist is a piece of dental equipment that is used for polymerization of light cure resin based composites. It can be used on several different dental materials that are curable by light. The light used falls under the visible blue light spectrum. This light is delivered over a range of wavelengths and varies for each type of device. There are four basic types of dental curing lights; Tungsten halogen, light-emitting diode , plasma arc curing (PAC), and laser. The two main dental curing lights are the halogen and light.
The curing lights use one or more light-emitting diodes and produce blue light that cures the dental material. Leds as light-curing sources were first suggested in the literature in 1995. A short history of led curing in dentistry was published in 2013.This light uses a gallium nitride-based semiconductor for blue light emission. The dental ledcuring lights use led’s that produce a narrow spectrum of blue light in the 400- to 500-nm range (with a peak wavelength of about 460nm), which is the useful energy range for activating the little molecule most commonly used to initiate the photo-polymerization of dental monomers.”
And this light is a kind of dental accessories which is also one kind of dental equipment for sale that is used for polymerization of light cure resin based composites. A article in the American Dental Association’s journal explained, “In led’s, a voltage is applied across the junctions of two doped semi- conductors (n-doped and p-doped), resulting in the generation and emission of light in a specific wavelength range. By controlling the chemical composition of the semiconductor combination, one can control the wavelength range. These curing lights are very different from halogen curing lights. They are more lightweight, portable and effective.
The heat generated from led curing lights is much less which means it does not require a fan to cool it. Since the fan was no longer needed, a more lightweight and smaller light could be designed. The portability of it comes from the low consumption of power. The ledcan now use rechargeable batteries, making it much more comfortable and easier to use. The newest led curing light is the HP (high powered led light). It is an updated led curing light that cures material much faster than the Halogen and the previous led curing lights. It uses a single high-intensity blue led with a larger semi-conductor crystal. Light intensity and the area that is illuminated has been increased with an output of 1,000 mW/cm2. In order to emit such a high intensity light, it uses a highly reflective mirror film that consisting of “multilayer polymer film technology.”