JPH01238806A - Ultrasonic toothbrush - Google Patents

Abstract

PURPOSE:To remove tooth filth at positions of teeth hard to be cleaned by connecting a brush to an ultrasonic vibrator incorporated in a hand piece for ultrasonic vibration. CONSTITUTION:A conductor 11 and a connecting plate 10 are connected to a connecting device A7 connected and fixed to an ultrasonic vibrator 6 with a connecting device B8. A brush constituted of a vibrating plate 13 and hairs 12 is welded to the tip of the conductor 11. The water in a water tank 4 is fed by a water feed pump 3, water is sprinkled through a sprinkle port 9, the ultrasonic vibrator 6 is ultrasonically vibrated by an ultrasonic oscillator 1, then the vibrating plate 13 is ultrasonically vibrated, and hairs 12 made of nylon are vibrated. At the same time, ultrasonic vibration is propagated to the water sprinkled toward the hairs 12, the cavitation phenomenon or the water pressure occurs, and the cleaning effect is exerted. The tooth filth stuck between teeth or below the tooth flesh edge hard to be removed in the past can be removed without hurting tooth faces or tooth flesh only by putting the hairs of the brush on tooth faces.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a toothbrush that has a function of ultrasonically vibrating a brush attached to a handpiece using an ultrasonic transmitter built into the main body. It is something.

[Prior Art] A conventional ultrasonic toothbrush has a toothbrush with
It has a structure that incorporates an aspirator, and attempts to generate ultrasonic waves by creating bubbles in water. However, with this method, even if air bubbles are created in the water by negative pressure, there is no mechanism to crush the created air bubbles by applying pressure, so less energy is generated due to cavitation, and the ultrasonic cleaning power is weak. At the same time, the effect of actually vibrating the brush using the generated ultrasonic waves was not very high.

[Problems to be solved by the present invention] Despite the fact that it has been revealed that the cause of both dental problems, periodontal disease and periodontal disease, is plaque that adheres to the tooth surface, Periodontal disease still shows no decreasing trend. This is because it is technically difficult to clean the interproximal surfaces and subgingival tooth surfaces by hand or with a conventional electric toothbrush. In order to remove plaque from areas where it is difficult to brush teeth, the following conditions were required.

a) Bring the bristles of the toothbrush into contact with the interproximal surface.

b) Insert the bristles of the toothbrush under the gingival margin.

c) By increasing the vibration frequency of the toothbrush and decreasing the amplitude, the bristles of the toothbrush are vibrated while remaining in the interdental region or subgingival region.

d) For tooth surfaces that cannot be reached by the bristles of a toothbrush, use the physical cleaning power of the cavity effect and water pressure.

Ultrasound had to be used to meet these conditions. On the other hand, tartar removers using ultrasonic waves have traditionally been used in dental practice, but these machines have a main body that incorporates an ultrasonic transmitter, a water supply system for cooling and cleaning, and a vibrator. It consists of a handpiece and a tip with a metal blade at the tip that can be connected to a vibrator.It has a large destructive force and can remove not only tartar but also tooth structure. Because I have the ability
It could not be used for the purpose of cleaning tooth surfaces by oneself.

The present invention has been made to solve these problems.

Means for Solving the Problem] A brush is connected to an ultrasonic vibrator incorporated in a handpiece, and is caused to vibrate ultrasonically.

[Example] (a) A metal coupling device A (7) that is connected and fixed to the ultrasonic transducer (6) in the handpiece and has a male thread at the tip has a female thread on the inside part. A cylindrical metal connecting plate (lO) integrally formed with the conductor (11) is connected using a metal connecting device B (8) made of screws. A brush consisting of a diaphragm (13) and bristles (12), which are pressed by inserting nylon bristles (!2) into one end of a metal pipe, is brazed to the tip of the conductor (ll). ing. Water from the water tank (4) built into the main body is sent to the handpiece using the water pump (3), and while water is being sprinkled from the water sprinkling port (9), the ultrasonic wave built in the main body is transmitted. Using the instrument (1), the ultrasonic transducer (6) built into the handpiece is
If you make ultrasonic vibrations at KHz~l0OKH2, the diaphragm (13) that makes up the brush will vibrate ultrasonically, and the nylon bristles (12) attached to the diaphragm (13) will vibrate.
It also vibrates. At the same time, the ultrasonic vibrations of the diaphragm (13) propagate to the water sprayed toward the bristles (12), resulting in a cavitation phenomenon and water flow pressure, producing a cleaning effect.

The present invention has the above configuration.

[Effects of the Invention] According to the present invention, by simply applying the bristles of a brush to the tooth surface, plaque adhering to the interdental areas and subgingival margins can be removed without damaging the tooth surface or gingiva, which was previously difficult. Since it can be removed, it can be used not only as an effective preventive means for eliminating the cause of periodontal disease, but also as an effective therapeutic means for promoting recovery of the living body by eliminating the cause. In addition, plaque can be effectively removed simply by applying the bristles of the plan to the tooth surface, so even a large exposed tooth surface can be cleaned in a short time.

The fact that many brushing methods were presented at academic conferences and the existence of more than a dozen types of toothbrushes proves that there was no truly effective method. No matter how much instruction is given on how to clean teeth, which combines methods and uncertain methods and does not pay off for the amount of effort, the expected effect is small, both technically and psychologically. Of course I have to say. The failure to motivate plaque control is not a lack of awareness of the harmful effects of plaque, but rather a psychological reaction to the inefficiency of cleaning despite the amount of effort and resignation. The present invention can be a powerful means for motivating plaque control, as it can give confidence that polishing will definitely make your skin beautiful without having to learn special techniques.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of the present invention, where the left side of the broken line is the main body;
The handpiece section is shown on the right, FIG. 2 is a perspective view of the handpiece tip and brush, and FIG. 3 is a sectional view of the coupling device B. In the figure, number (1) is the ultrasonic transmitter, (2) is the power source, (3) is the water pump, (4) is the water tank, (5) is the water tube, (6) is the ultrasonic vibrator, (7) ) is connecting device A
, (8) is the connecting device B, (9) is the water spout, (10) is the connecting plate, (I 1) is the conductor, (12) is the nylon hair,
(13) indicates a diaphragm, and (14) indicates a female screw portion.

Claims (1)

[Claims] An ultrasonic toothbrush characterized by connecting a brush to an ultrasonic vibrator built into a handpiece to generate ultrasonic vibrations.