Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1996-12-13
1998-10-13
Wilson, John J.
Dentistry
Apparatus
Having intra-oral dispensing means
433 85, 433216, 601162, A61G 1702
Patent
active
058203737
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is concerned with a cleaning device for a periodontal pocket which is capable of carrying out sterilization of pathogenic fungi of periodontal diseases in a safe and easy manner, and with which the therapeutic treatment for improving the conditions of the periodontal pocket can be done not only at dental clinics, but also at ordinary homes in general.
2. Description of the Related Art
It has been known that, when the pathogenic fungi of periodontal diseases propagate in the periodontal pocket existing between the teeth and the gum (or gingiva), dental plaque accumulates, which is the cause of the gingivitis, accumulates. As shown in FIG. 35 of the accompanying drawing, the periodontal pocket is present at a position slightly deeper than the surface 400 of the tooth gum. Since the gum surface 400 is in tight contact with the tooth surface 401, it is usually not possible to clean the interior of the periodontal pocket 402 with a tooth brush and hence, the propagation of periodontal pathogenic fungi and/or accumulation of dental plaque is difficult to suppress.
As a method for suppressing the propagation of pathogenic fungi and/or accumulation of dental plaque in the periodontal pocket, the following three methods have been well known: pocket to feed liquid chemicals, such as fungicide, disinfectant, quenching agent, and so forth, thereinto, or to clean the interior of the pocket; rubber tip attached to a tip end thereof, and by positioning the rubber tip into the periodontal pocket, the liquid chemicals are injected into the pocket to wash the interior of the pocket; and jet water current to wash away the dental plaque therewith.
The first method is steady and effective, but such treatment can only be done by dentists, because of the risk of injury to the gum and hence, it is not a method that can be done at home by an ordinary person for himself or herself.
The second method can be done by a person at home, but it is difficult to position the rubber tip accurately into the periodontal pocket and there may be further problems, such as the liquid chemicals scattering around, making it difficult to inject a sufficient amount of the chemicals into the pocket. In addition, the surrounding area is polluted with the scattered chemicals and hence, the method is problematic.
The third method can be done by any person at home, but has the problem that it is difficult to force the jet water current into the periodontal pocket, even if the water pressure is increased, because the pocket is tightly closed by the gum surface which is in close contact with the tooth surface and hence, the plaque-removing effect is not very good.
For solving the above-mentioned problems to a certain extent, a technique is proposed in Japanese Utility Model Publication No. 4-4733 (hereinafter JP '733). According to the technique of JP '733, a periodontal pocket cleaning device is disclosed which has a construction including: a stationary type main body device, which accommodates integrally therein, an injection nozzle hand-piece having an injection nozzle provided at a tip end thereof; an air-pump to supply pressurized air to the injection nozzle hand-piece; a water tank for storing a large quantity of water therein; and a coaxial double-structured tube for supplying both pressurized air and water to the injection nozzle hand-piece, wherein the spouting pressure of the compressed air from the tip end of the nozzle is set in a range of from 1 to 2 kg/cm.sup.2, the spouting quantity of the compressed air is set in a range of from 6 to 9 l/min., and the jet-out quantity of water is set in a range of form 10 to 30 cc/min. JP '733 further describes that, by spouting water and compressed air simultaneously from the tip end of the injection nozzle of the cleaning device, an atomized jet is produced which contains a large quantity of water. The entrance to the periodontal pocket is opened by the wind pressure of the atomized jet and at the same time, by forcing the large q
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Asai Tomoko
Kita Masaharu
Matsui Tsuguo
Morita Takashi
Okano Koichi
Okano Koichi
Wilson John J.
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