Toilet – Toothpick
Reexamination Certificate
1999-12-30
2001-06-26
Lewis, Ralph A. (Department: 3732)
Toilet
Toothpick
C132S329000
Reexamination Certificate
active
06250313
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a dental cleaning device in the shape of an elongated element, the cross-section of which permits its introduction between the teeth.
In order to avoid parodontopati and caries it is important regularly to clean the teeth and to give them a prophylactic care at all stages. To achieve this one does today generally use a dental floss and, when the gaps between the teeth are a little wider, use so-called gap brushes. It has, however, proven difficult to achieve a perfect cleaning of the teeth in those cases where the dental floss is too thin and the gap brush is too big. If the gap brush is too big to permit its introduction, it will bend resulting in a deteriorated cleaning effect. If in such a case the dental floss is inserted between the teeth, the cleaning effect will be inferior due to the fact that in those places the dental floss is too thin to perform the desired result.
SUMMARY OF THE INVENTION
The purpose of the present invention is to eliminate the above-mentioned problem and to establish a combined dental floss and gap brush, the two parts of which cooperate in such a way that a most efficient and complete cleaning of the teeth can take place. The characteristics of the invention are set out in the subsequent claims.
Thanks to the present invention there has now been provided a tooth cleaning device, which in an excellent manner fulfils its purposes and at the same time can be manufactured in a simple and cost-saving way. Use of the tooth cleaning device according to the invention makes it possible simultaneously to handle two problems, namely alternately caries and parodontal problems. The device offers a more efficient cleaning than a conventional gap brush, when the brush is inserted with the aid of the dental floss and can be given different angles during the cleaning of the gum. In this way the lingual side of the gum becomes more healthy, which significantly improves the parodontal situation. Also, thanks to the alternate use of the gap brush and the dental floss, the device according to the invention offers a possibility simultaneously to carry out two treatments. Use of the dental floss makes it possible also to reach very narrow spaces between the teeth, which cannot accommodate a conventional gap brush so that efficient cleaning can be carried out. Further, one can conveniently reach the spaces below bridge structures at implants and pending joints. Finally, the dimensions of both the brush and the dental floss can conveniently be made to match individual users and the device can be delivered to the client e.g. wound onto a roll. The application of the brush on the dental floss according to the method characterizing the invention completely eliminates the risk that the brush would come loose from the dental floss. This is essential, since the brush may in use sometimes get stuck between the teeth.
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Lewis Ralph A.
Ostrolenk Faber Gerb & Soffen, LLP
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