Abstract: Provided is a dental ultrasonic cleaning device that efficiently cleans teeth or dentures in an oral cavity using ultrasonic waves. A dental ultrasonic cleaning device 1 emits ultrasonic waves through a cleaning-liquid (W1) to the surface of a cleaning-target 26, ultrasonically cleaning it. An ultrasonic horn 24 propagates ultrasonic waves being generated by an ultrasonic-wave transducer 23 and emits them from the vibratory surface 25 provided at the tip-end of the horn 24. A liquid-reserving part 27 is provided, surrounding the vibratory surface 25 of the ultrasonic horn 24, which temporarily reserves the cleaning-liquid (W1) between the vibratory surface 25 and the cleaning-target 26. A cap-member 33 is provided at a certain interval opposite the liquid-reserving part 27.

Abstract: This invention is achieved to provide a water-flow ultrasonic oral-cavity cleaning device. In the water-flow ultrasonic oral-cavity cleaning device (1), cleaning liquid (W1) from a cleaning-liquid supplying device (2) is supplied into a transducer case (21) through a supply port (26). Ultrasonic waves (S1) are propagated into the cleaning liquid W1 from an ultrasonic transducer (22) mounted in a transducer mounting part (23) inside the transducer case (21). The water-flow of the cleaning liquid (W1) is collected at the apical-part inside the transducer case (21), and then emitted from the issue (27) into the oral cavity, wherein power supply of 100W or less is supplied to the ultrasonic transducer (22) of 50 mm or less in diameter to propagate the ultrasonic waves (S1) of 100 kHz or more to 3 MHz or less in frequency into the cleaning liquid (W1).

Abstract: Provided is a dental ultrasonic cleaning device that efficiently cleans teeth or dentures in an oral cavity using ultrasonic waves. A dental ultrasonic cleaning device 1 emits ultrasonic waves through a cleaning-liquid (W1) to the surface of a cleaning-target 26, ultrasonically cleaning it. An ultrasonic born 24 propagates ultrasonic waves being generated by an ultrasonic-wave transducer 23 and emits them from the vibratory surface 25 provided at the tip-end of the horn 24. A liquid-reserving part 27 is provided, surrounding the vibratory surface 25 of the ultrasonic horn 24, which temporarily reserves the cleaning-liquid (W1) between the vibratory surface 25 and the cleaning-target 26. A cap-member 33 is provided at a certain interval opposite the liquid-reserving part 27.

Abstract: A water jet spray nozzle has a flow path including, from the upstream side to the end of the flow path, a small-diameter portion having a small inside diameter, an expanded portion having a larger inside diameter than the small-diameter portion, and a jet orifice having a smaller inside diameter than the expanded portion. The water jet spray nozzle is configured such that water passing through the flow path with a pressure of 0.2 to 0.6 MPa is retained in the expanded portion to as to generate cavitation bubbles from the small-diameter portion to the expanded portion. The inside diameter of the small-diameter portion § is 0.5 to 0.7 mm while the inside diameter of the jet orifice is 1 to 1.3 times larger than that of the small-diameter portion.

Abstract: This invention is achieved to provide a water-flow ultrasonic oral-cavity cleaning device and a method for water-flow ultrasonic oral-cavity cleaning for surely and efficiently cleaning an oral cavity. In the water-flow ultrasonic oral-cavity cleaning device 1, cleaning liquid W1 from a cleaning-liquid supplying device 2 is supplied into a transducer case 21 through a supply port 26. Ultrasonic waves S1 are propagated into the cleaning liquid W1 from an ultrasonic transducer 22 mounted in a transducer mounting part 23 inside the transducer case 21. The water-flow of the cleaning liquid W1 is collected at the apical-part inside the transducer case 21, and then emitted from the issue 27 into the oral cavity, wherein power supply of 100W or less is supplied to the ultrasonic transducer 22 of 50 mm or less in diameter to propagate the ultrasonic waves S1 of 100 kHz or more to 3 MHz or less in frequency into the cleaning liquid W1.

Abstract: A device for cleaning oral cavity and a method for cleaning oral cavity capable of cleaning stains such as plaque, tartar, and the like even in a narrow portion such as a clearance between teeth, a clearance between implants, and the like. A cover includes a jetting orifice and a discharge orifice and covers a tooth by leaving a clearance between the tooth and the cover so that the clearance can hold water. A jetting unit is mounted in the jetting orifice and includes a flow path communicating with the clearance between the tooth and the cover. The jetting unit is configured to generate cavitation bubbles. The flow path includes a small diameter part and an enlarged part. A discharge unit discharges water in the clearance between the tooth and the cover from the discharge orifice.

Abstract: A kimchi-like food produced by combining dried stalks of sanzo-sai, conventional kimchi additives, and improved kimchi additives, and processing the combination according to a new process which includes a two-step aging process. The resulting kimchi-like food is crisp, full-flavored, and sour, and maintains these qualities through long-term storage.