Recently, a new concept to dentistry, the LED, has entered the
market. There have been significant sales promotions from the several
companies selling LED lights. As a result of the promotions, dentists
appear to be more confused than before.
In the last few years,
there has been an emphasis on enhanced conventional curing lights to
provide greater curing intensity and faster cure. The most obvious way
this has been accomplished is by the use of light guides that diminish
in size as they exit from the curing light.
1. Diodes are long-lasting without the need for frequent replacement. 2. They generate no heat during curing. 3. They offer a moderate curing time of about 10 to 20 seconds. 4. They are quiet in operation. They are cordless, small and lightweight.
Of course, they also have some disadvantages:
1. Their technology is new to dentistry, and the concept still is evolving. 2. Their curing time is slower than that of PAC lights and some enhanced halogen lights. 3. Their batteries must be recharged. 4. They cost more than do conventional halogen lights.
LED choices The
use of CPQ is very common by most manufacturers, but there are a few
adhesive materials that use a different photoinitiator. Because of that,
and the specifics of LEDs, there’s potential for a material to not be
cured by a device designed to work only with CPQ. Fortunately, because
LEDs can be created to produce different wavelengths, there are now
several devices that can cure every resin-based material on the market.
(To find out which photoinitiator your materials use, be sure to ask the
All general practitioners need curing lights for
myriad curing tasks. Light-cured resin has become the state of the art
during the past 25 years. It seems logical that the light-curing concept
would have matured during that time, but it has not.
question, light-curing is desirable, but practitioners are confused
about the most appropriate light-curing concept to use in their
practices. Because of this confusion, some practitioners have continued
to use older lights in spite of the advantages offered by some of the
newer ones. The light-emitting diode, or LED, concept is challenging
more established modes of curing, and some dentists are buying LED
lights. And many practitioners who have purchased the even faster plasma
arc curing, or PAC, lights are not willing to go back to the slower LED
The choice about which type of curing
light to buy should be based on which of the various lights’ features
suit the specific practitioner best. As a dentist, you should know
different dental equipment clearly. Then you can make the best choice.