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Mid-infrared (MIR) laser with a specific wavelength can excite the corresponding biomolecular site to regulate chemical, thermal and mechanical interactions to biological molecules and tissues. In laser surgery and medicine, tunable MIR laser irradiation can realize the selective and less-invasive treatments and the special diagnosis by vibrational spectroscopic information. This paper showed a novel...
Knowledge of laser hard tooth tissue interactions plays an important role in laser dentistry. Pulsed Er:YAG laser was capable of ablating human dentin. The diameter and depth of ablation craters increased with radiant exposure.
The aim of this study was to assess the effect of different power irradiation conditions on human dentin by pulse Er,Cr:YSGG laser. Tissue samples were derived from freshly extracted human molars. The wavelength of pulse Er, Cr:YSGG laser was 2.78 mum, pulse repetition rate was 20 Hz and pulse duration was 140 mus. Laser power of irradiation varied from 1.5 to 4 W. Laser energy was delivered through...
The accurate acquisition of the patient dentition is a very important step in orthognathic surgery since it permits to determine the occlusal position in order to prepare the operation. Classical methods for dental acquisition do not give a fast, accurate and low cost solution. Moreover, orthognathic surgery requires accurate registration with CTscan images, which is difficult with state of the art...
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