The light source of the curing light is an advanced LED, which emits blue light at a set wavelength. A resinous material placed on the tooth can be cured.
The structure of the light curing machine is relatively simple. The key functions in the mid-term are the LED lights and light guide rods, followed by the quality of the electronic controller.
The LED light of a good light curing machine must have a narrow wavelength error range, the best cold light (blue light) at 430nm-480nm; secondly, the LED light can maintain the original light intensity under the condition of long-term work; Once again, there is a stronger light intensity in the case of a lower color temperature.
The quality of the light guide rod also directly determines the performance of the LED light curing machine. The key to a good light guide rod is the light guide rate. The light guide rate of a good light guide rod should reach more than 80%.
The light intensity of the light curing machine is not as high as possible.
Expert studies have shown that the mechanical strength of photocured photosensitive resins is related to the number of cross-linked long-chain macromolecules in the resin. The more the number, the better the mechanical properties.
If too high light intensity is used, the molecules in the resin have no time to flow and have been cured, which will produce a large number of short-chain molecules, which will cause high internal shrinkage stress of the resin, reduce the mechanical properties, and at the same time, the junction between the resin and the cavity will also be damaged. Cracks easily.
The recommended method should be to use weak light to guide. The initial low light intensity is conducive to the movement of molecules in the resin and the formation of long-chain macromolecules, and then to quickly cure with high light intensity in the later stage to achieve the best curing effect. A large number of tests have shown that the light intensity of the LED light curing machine is more than 200 mW/cm 2 for the super bright LED type, and more than 500 mW/cm 2 for the high-power LED, which can achieve a curing effect better than that of the ordinary halogen lamp curing machine. .
Light curing machine is an oral equipment for tooth restoration. It uses the principle of light curing to make dental repair resin materials cure rapidly under the action of light waves in a specific wavelength range, so as to fill tooth cavities or bond brackets.
After years of development, the clinically used light curing machines mainly include halogen lamps (Quartz Tungsten Halogen, QTH), LED lamps (Light Emitting Diode, LED), plasma arc lamps (PlasmaArc, PAC), sub-laser lamps (argon ion laser) ) and other light curing machines.
Light curing machines usually use UV light in the range of 250-410nm. Infrared IR is also used for heat curing.
The core component of the UV curing machine is the UV lamp, with a peak value of 365nm. The metal halide lamp with a peak wavelength of 380nm is used for better effects, which is used for UV inks that are difficult to cure and have thick coatings.
1. Two-year warranty for the host and LED lights, (man-made reasons are not covered by the warranty)
2. The power cord and transformer are guaranteed for one year, (man-made reasons are not covered by the warranty)
3. The battery is guaranteed for three months, (artificial reasons are not covered by the warranty)
4. Large quantity and color can be selected
5. Weight: 0.865kg
6. Packaging specification: 7.2x5.5x8.6cm
7. Easy to disassemble and replace the lithium battery
It can be used continuously for more than 500 times if it is charged once and counted as working for 10 seconds each time.
Light curing machine is an oral equipment for tooth restoration. It uses the principle of light curing to make dental repair resin materials cure rapidly under the action of light waves in a specific wavelength range, so as to fill tooth cavities or bond brackets.