JP2663213B2 - Toothpaste - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION 【Technical field】

The present invention relates to a toothpaste suitable for prevention and treatment of alveolar pyorrhea.

BACKGROUND ART In recent years, by brushing patiently for a long time in a manner of protruding hair tips into the gingival sulcus, to prevent alveolar pyorrhea,
Alternatively, a brushing method has been developed to prevent the progression of alveolar pyorrhea or to regenerate the alveolar bone once dissolved by the alveolar pyorrhea (Reference: Tsuneo Katayama, "Alveolar pyorrhea", Asahi Shimbun) Issue). FIG. 5 (a) is a cross-sectional view of a tooth with pyorrhea, and FIG. 5 (b) is a cross-sectional view of a normal tooth. There is a gingival sulcus C having a depth of ~ 2 mm.
When bacteria grow in the germ, plaque consisting of the bacteria and their waste products is eventually deposited and the gingival sulcus C is blocked, and the air does not pass through the inside, and anaerobic alveolar pyorrheic bacteria breed. Invades between B and root A2 and causes inflammation. This is alveolar pyorrhea. When this occurs, a pocket D is formed at the back of the gingival sulcus C, and the alveolar bone E supporting the root A2 gradually dissolves. The places where it is particularly difficult to remove plaque are the gingival sulcus C between the teeth and the pocket D formed at the back of the sulcus C, but it is extremely difficult to reach the tip of the conventional toothbrush here. is there. Therefore, the above-mentioned new brushing method uses a toothbrush in which a bundle of bristles is implanted in a single row, presses the toothbrush to a target location, a set of bristles is inserted into the gingival sulcus, and the tip of the bristles is stopped at that position. The toothbrush is finely vibrated while it is still standing. In this way, the other bristle bundles hinder the hair tips that did not reach the inside of the gingival sulcus C or the pocket D, so that the accumulation of viscous plaque that is difficult to dissolve in water can be achieved. By mixing with, the oxygen can be supplied to the anaerobic alveolar pyorrhea and the bacteria can be killed. However, the above-mentioned brushing method uses a special toothbrush with less bristle to brush patiently one by one without changing the position of the bristle point.
Since it requires the patient to brush for a long period of time, the arm is easily fatigued and takes too much time, and it is not easy to maintain this for a long period of time. In order to shorten the brushing time, it is sufficient if an electric toothbrush can be used, but the conventional electric toothbrush moves the bristles not in the longitudinal direction but in the lateral direction. Rather, it always moves in the retreating direction, so that it is almost impossible to insert the tips into the gingival sulcus C or pocket D between the teeth as described above. In order to remove the plaque in the gingival sulcus C and the pocket D, it is conceivable to use a mouthwasher using a jet water flow. However, as described above, the plaque is not soluble in water and has a strong stickiness. However, since it is firmly attached to the tooth surface, it is difficult to remove it only with the jet water flow of the mouth washer.

DISCLOSURE OF THE INVENTION

In view of the above-mentioned problems, the present invention is not possible with a conventional mouth washer or an electric toothbrush, but is only possible manually using a specially shaped toothbrush. Brushing with power,
Accordingly, it is an object of the present invention to provide a dentifrice capable of effectively preventing or treating alveolar pyorrhea by greatly reducing the labor and time conventionally used for brushing. In order to achieve the above-mentioned object, a toothpaste according to the invention of claim 1 forms a large-diameter cylinder portion in a water passage near the tip of a fountain nozzle, and reciprocates a piston body housed in the cylinder portion. Is provided so that the tip of a bunch of bristles implanted on the front face of the piston body enters and exits from the fountain port at the nozzle tip. Although a small motor and a cam mechanism as used in a toothbrush may be used, a solenoid used for a vibrator or the like may be used as shown in FIG. As shown in FIG. 2 or 3, the toothbrush according to the second aspect of the present invention is provided with a mechanism for pulsating a water flow as a reciprocating drive means for the piston body, and transmits power to the piston body using water as a medium. It is something to do. According to the invention of claim 1, since the bristle bundle reciprocates along its longitudinal direction, that is, the direction in which the bristle tip faces,
The bristle tip can be inserted straight into the gingival sulcus C or pocket D. Also, since the bristle bundle is only one bundle and thin, it cannot be reached with a normal toothbrush like the gingival sulcus C between teeth. In addition to being able to easily insert the hair tips even in narrow and deep places where it is not possible, the hair tips can be accurately applied to the desired affected part, and the bristle bundle is driven by power, so that the arm is not tired easily In addition, brushing, which conventionally requires a long time manually, can be completed in a short time. In addition, since the bristle bundle protrudes from the nozzle outlet together with the water flow, the plaque separated from the tooth surface by brushing can be washed away from the gingival sulcus C and the pocket D, and the nozzle fountain and the bristle bundle can be washed with water. Since the sliding part is lubricated and washed, there is no danger of bristle bundles becoming dirty or foreign matter clogging the sliding part, causing malfunction, and the role of a guide to prevent the bristles from bending or spreading at the nozzle fountain. Can be made. Further, since the water flow always cools the bristle bundle, it is possible to prevent the bristle from being softened and deformed by frictional heat or body temperature. Furthermore, according to the configuration of claim 2, since the pulsed water flow of the mouth washing device, which has been widely used, can be used for driving the bristle bundle, a driving mechanism such as a motor or a cam mechanism is separately provided for driving the bristle. In addition to this, the pulsation of the water flow can be performed at a high speed of, for example, 30 times per second, and the small and lightweight bristle bundle can sufficiently follow this high-speed pulsation. It can be done in just a few minutes. Moreover, because the water flow is used, the impact force of the hair tips does not become excessive even if the nozzle is brought close to the affected area,
Therefore, there is no possibility of damaging the affected part. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing a main part of one embodiment of the present invention. FIG. 2 shows another embodiment of the present invention, and (a) shows the main part thereof. It is a longitudinal sectional view, (b) is XX sectional drawing in (a). FIG. 3 shows still another embodiment of the present invention.
(A) is the whole front view, (b) is the longitudinal cross-sectional view which shows the principal part same as the above. FIG. 4 is an explanatory view of the present invention, in which (a) is a sectional view of a tooth with alveolar pyorrhea, and (b) is a sectional view of a normal tooth.

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 shows an embodiment of the invention of claim 1.
The plastic fountain nozzle 1 is bent at the tip so that brushing on the back side of the teeth can be easily performed, and the water passage 2 near the tip of the nozzle 1 has a large-diameter cylinder portion 3.
Is formed, and a bundle of bristles is implanted on the front surface of the piston body 5 housed in the cylinder portion 3. The piston body 5 is connected to a movable iron core 8 of a solenoid 7 provided at the base of the nozzle 3 by a flexible wire 9 made of a thin piano wire or the like. The bristle bundle 4 is driven to reciprocate back and forth in the inside, so that the bristle bundle 4 enters and exits from the fountain port 6 of the nozzle 1. In this embodiment, a holder that allows the piston body 5 to be attached to and detached from the tip of the wire 9 so that the bristle bundle 4 can be easily replaced when it is deformed due to fatigue.
10 is provided so that the tip portion 1a of the nozzle 1 can be removed with a screw 17. Reference numeral 11 denotes a spring for applying a back pressure to the movable iron core 8 or the piston body 5. Tap water is supplied to the base end of the nozzle 1 through a flexible tube, and the bristle bundle 4 enters and exits from the nozzle tip, and the water flows out. This water flow causes food debris and plaque from the gingival sulcus C. As well as cleaning and cooling the bristles themselves and lubricating between the bristles and the nozzle. As described above, according to the invention of claim 1, the thin bristle bundle 4
Is driven back and forth along its longitudinal direction, so it can be easily applied to narrow and deep places where the bristles cannot reach with a normal toothbrush, such as in the gingival sulcus C or pocket D between teeth. In addition to the above, there is an advantage that the bristle bundle 4 can be accurately applied to the affected part of the alveolar pyorrhea, and the bristle bundle 4 is small and light. Since the power transmission means up to the bristle bundle 4 can also be formed in a thin and bent shape such as the remote control wire 9 and the pipe 1, the bristle tip can be easily applied to an arbitrary point in the oral cavity such as the back side of the dentition or the back teeth. In addition, since the bristle bundle 4 is projected from the tip of the nozzle 1 together with the water flow, the plaque peeled off at the same time as the brushing can be washed out of the gingival sulcus and pockets. fountain Since 6 and the lubricating and cleaning of the sliding portion of the bristle bundle 4 is done, the bristle bundle 4 is dirty or fountain port 6
There is an advantage that there is no danger that the foreign matter is clogged with the foreign matter to cause malfunction, and since the water flow always cools the bristle bundle 4, the bristle can be prevented from being softened and deformed by frictional heat or body temperature. Next, FIG. 2 shows an embodiment of the second aspect of the present invention, in which a large-diameter cylinder portion 3 is formed in a water passage 2 near the tip of a nozzle 1 to which water at a constant pressure is supplied. A piston body 5 having a bundle of bristles 4 implanted on its front face is fitted into the cylinder part 3, and the peripheral wall of the front half part of the cylinder part 3 is as shown in the sectional view of FIG. A concave groove 12 is formed in the axial direction. Now, when the piston body 5 reaches the front half of the cylinder 3 due to the water pressure, the water goes forward through the concave groove 12, so that the piston body 5 is pushed back to the rear half of the cylinder 3 by the spring 11, and again by the water pressure. It is pressed forward. Thus, even if the water pressure is constant, the piston body 5 vibrates back and forth in the cylinder 3, and the pulsed water flow and the tip of the bristle bundle 4 alternately fly out of the fountain port 6 of the nozzle 3. As a means for supplying water at a constant pressure, tap water pressure may be applied to the base end of the nozzle 1 via a flexible tube, but a water pressure source that can be used together by a plurality of persons using a pressure pump is used. It is also possible to configure. FIG. 3 shows still another embodiment of the second aspect of the present invention. In contrast to the embodiment of FIG. 2 in which the means for pulsating the water flow is provided on the nozzle side, in the present embodiment, this means is provided on the side of the dentifrice body 13, and the pump 14 is used to supply water to the water tank 15. It is characterized in that it is pulsated and supplied to the nozzle 1 via the flexible tube 16, and the structure of the conventional mouth washing device is used as it is as the toothpaste body 13. In the figure, reference numeral 17 denotes a handle portion having a built-in manual water flow shutoff valve and having a nozzle 1 inserted at the tip thereof, and in a water passage 2 near the tip of the nozzle 1, as shown in FIG. A piston body 5 having a bristle bundle 4 implanted on its front surface is loosely fitted so that the tip of the bristle bundle 4 enters and exits from the fountain port 6 of the nozzle 1 together with the water flow. A spring 11 is provided in the cylinder 3 to push back the piston body 5 to retract the bristle bundle 4 into the nozzle 1 when the hydraulic pressure pulse is turned off. The spring 11 increases the stroke of the bristle bundle 4 to improve the brushing effect, and also helps to prevent the bristle bundle 4 from being caught between the teeth when the nozzle 1 is sequentially moved to change the brushing position. However, even if the spring 11 is not provided, the bristle bundle 4 retreats and reciprocates by the reaction, so the spring 11 is not always necessary. The tip 1a of the nozzle 1 is provided with a piston body 5 with bristles.
The bristles 4 made of nylon or polyester are inserted through a cylindrical piston body 5 with a flange, and the rear end of the It is fixed to the body 5 by adhesion or pressure bonding. In addition, piston body 5
Is guided in the front-rear direction by the sliding contact between the bristle bundle 4 and the nozzle fountain port 6, so that the sliding contact surface with the inner wall of the cylinder 3 is not necessary. Therefore, the shape of the piston body 5 is It may be a simple one with only the cylinder part to be clamped and the flange part receiving the water pressure and the spring 11. By the clearance between the peripheral edge of the flange portion of the piston body 5 and the inner surface of the cylinder portion 3, the impact force of the bristle bundle 4 can be appropriately selected. As described above, according to the second aspect of the present invention, the toothpaste main body
As the mouthwashing device 13 which has been widely used conventionally can be used as it is, and the bristle bundle 4 can also be driven by the water flow for mouthwashing, so that the structure can be simplified without requiring a separate bristle drive mechanism. In addition, the pulsation of the water flow can be performed at a high pulse rate of, for example, 30 times per second, and the small and lightweight piston body 5 can sufficiently follow the high-speed pulsation. There is an advantage that the required brushing can be performed in only a few minutes, and since the piston body 5 is propelled by the viscosity of the water flow, even if the nozzle 1 is too close to the affected part, the bristle tip is incurred as in the case of direct drive. The impact force is not excessive, and there is no risk of damaging the affected part.

Claims (2)

(57) [Claims] 1. A large-diameter cylinder part (3) is formed in a water passage (2) near the tip of a fountain nozzle (1), and a piston body (5) housed in the cylinder part (3) is reciprocally driven. A toothpaste provided with means so that the tip of a bristle bundle (4) implanted in front of the piston body (5) enters and exits a fountain (6) at the tip of a nozzle. 2. A dentifrice according to claim 1, wherein said piston body (5) is reciprocally driven by means for pulsating the water flow.