DEVICE FOR DENTAL SCALING AND DISINFECTION, AND LIGHT GUIDE USED THEREFOR

摘要

PROBLEM TO BE SOLVED: To attain a device for dental scaling and disinfection which is given consideration for hot sterilization treatment by means of an autoclave or others and, besides, excels in operability.

SOLUTION: Dental calculus is crushed by transmitting ultrasonic vibrations generated by an ultrasonic generating means 12 to the tip part of a probe 20 from a holder 10, and disinfection is performed by supplying a disinfecting liquid supplied by a liquid supply means to a tooth part from the tip part of the probe and by conducting light from a light source device 60 by a light guide 22 and radiating it to the supplied disinfecting liquid so as to generate a hydroxy radical. The probe 20 is made from a hard metal material and shaped like a hollow tube and can be attached removably in a watertight manner to the holder 10. The light guide 22 is replaceable and made from resin having a higher refractive index than the disinfecting liquid, and it has a circular section of a diameter made smaller from the incidence side toward the injection side and is fitted in the probe with play. The diameter on the incidence end side is ≥0.7 to ≤3 mm.

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