Dentistry – Apparatus – Having gauge or guide
Reexamination Certificate
1999-02-01
2001-06-05
Lucchesi, Nicholas D. (Department: 3732)
Dentistry
Apparatus
Having gauge or guide
C433S141000
Reexamination Certificate
active
06241519
ABSTRACT:
This application is the national phase under 35 U.S.C. §371 of prior PCT International Application No. PCT/CH97/00137 which has an International filing date of Apr. 8, 1997 which designated the United States of America, the entire Contents of which are hereby incorporated by reference.
The solution according to the invention is defined by means of the features of claim
1
.
The core idea of the invention consists in that the proximal allowance of the concerned interdental spaces is measured. For this purpose, different probing elements with pregiven parameters are guided into the interdental space. The proximal allowance is determined by that element (or its parameter) that can just barely be guided into the interdental space.
Preferably, all the interdental spaces are measured and entered into a schematic that is provided to the user. The corresponding type of interdental brush can be entered instead of the measuring value or the proximal allowance. In this way, the user obtains from the adviser the information about which interdental brush will provide an optimum cleaning of which interdental spaces.
Particularly suited for carrying out the process is a device wherein the probing elements are realized in the shape of sections of different diameter. The diameter can be modified by steps or continuously along the length of the probe. Advantageously, the probe elements have a flexibility corresponding to the one of the interdental brushes. The probing elements consist purposefully of a plastic (for example, polyamide), but can also be manufactured of metal.
However, the probing elements can also be realized as a set of probes with several individual probing elements of different diameters. Purposefully, several probing devices are provided with several probing elements.
The probes can be firmly or exchangeably attached to the handle. In the first case, a probing tip can be arranged at each end of the elongated handle. The probing tips are shaped in such a way that they are completely covered (or at least partially) with separate diameter regions. In the second case, the probe has a head that is structured for inserting into an interdental brush holder.
Other advantageous embodiments and features result from the following detailed description and the totality of the claims.
REFERENCES:
patent: 4805252 (1989-02-01), Tarrson et al.
patent: 5035616 (1991-07-01), Woelfel
patent: 5044951 (1991-09-01), Sheridan
patent: 5752832 (1998-05-01), Vardimon et al.
Curaden AG
Lucchesi Nicholas D.
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