| 摘要 |
<p>An apparatus for removing dental enamel and dentin. This apparatus is also capable of cutting soft tissue. The apparatus includes a laser (10) which, when activated, produces a laser pulse (12) having a wavelength of between 2.0 and 3.0 microns, a beam diameter in the several picoseconds and several milliseconds, and energy level of between .1 and 100 millijoules per pulse, and pulse repetition rates from 1pps to 200pps. The pulse (12) is focused on the dental enamel or dentin thereby reaching high enough energy densities to vaporize the material. In the case of soft tissue, a special tip (25) is used to concentrate the laser (10) on the tissue so that cutting action can be easily executed.</p> |
