| 摘要 |
A laser cutting apparatus which comprises a laser emitter 11 capable of outputting a laser beam 4 in pulses and a laser beam irradiation member 1; a dental-crown polishing and washing member 12 having an injection member 2 through which air 6, water 8 and polishing material 7 are output toward a laser-beam-irradiated surface; and a control member 14 capable of controlling the operation of the laser emitter 11 and the dental-crown polishing and washing member 12, wherein the laser beam irradiation member 1 and the injection member 2 are combined with each other by means of an adapter 10 disposed therebetween, thereby enabling both the laser beam irradiation member 1 and the injection member 2 to be held and operated by a single hand. By employing this laser cutting apparatus, a high-energy laser beam can be used in medical and dental fields for removing soft dentin to form a cavity, without the occurrence of problems due to the irradiation of a high-energy laser beam, such as the production and deposition of a carbonised layer in the dentin, the formation of a fused layer in the dentin, the occurrence of a cavity margin having an irregular configuration, and the cracking and damaging of the dental pulp attributed to a temperature rise. <IMAGE> |
