Abstract
SHS investigation development is considered from the geographical and historical viewpoint. 3 stages are described. Within Stage 1 the work was carried out in the Department of the Institute of Chemical Physics in Chernogolovka where the scientific discovery had been made. At Stage 2 the interest to SHS arose in different cities and towns of the former USSR. Within Stage 3 SHS entered the international scene. Now SHS processes and products are being studied in more than 50 countries.
Abstract
Lasers in dentistry is a relatively new concept with unique advantages.
Lasers are helpful in the treatment of hard and soft tissue of the oral cavity. The laser
light is created by an external light source reflected by mirrors. The mirrors are placed
around the active medium. The photons of light that reach the active medium activate
more photons exponentially. This results in a large amount of laser energy that is
highly focused and directional. This laser energy may be useful to cut or ablate. The
mechanism is that this laser energy is absorbed by the tissue according to the
penetration depth. A few real-life pictures are included at the end of the chapter for
learning experience of the student. These are pre- and post-operative pictures of five
interesting cases.
Keywords:
Argon, Co2 , Diode, Emission, ErYag, Electromagnetic spectrum, Flexible fiberoptics, Invisible light, NaYag, Orbit, Optical cavity, Radiation, Rigid glass fibres, Scattering, Visible light.
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Authors:Bentham Science Books