Abstract
the spectrum which are absorbed by dentin and enamel.(1981, The Japanese journal of Conservative Dentistry.)
These studies show that dentin and enamel absorb light in the regions of the spectrum around 3 μm and 10 μm. Water also absorbs light in the 3 μm region.
Er: YAG laser is effective in the 3 μm region and the CO2 laser in the 10 μm region. However, the CO2 laser has a clinical drawback: it causes heating which cracks the tooth surface. This makes the Er: YAG laser the best possibility for clinical application. (1990, The Japanese Society for Laser Dentistry)
It has also been shown that the Er: YAG laser removes hard dental tissue through the micro-explosive reaction of OOH-Stem of the hydroxy apatite the hydration shell inside the crystal is instantly vaporized.
The complete absence of pain during the procedure is especially noteworthy.
