Dentistry – Apparatus – Hand manipulatable implement
Patent
1996-10-25
1998-07-21
Wilson, John J.
Dentistry
Apparatus
Hand manipulatable implement
433166, 433173, A61C 1700
Patent
active
057826358
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention concerns a device for working the surface of inserted oral implants and/or the abutments placed thereon and the like.
Implants of the type addressed here must be cleaned at regular intervals whereby scalers or curettes preferably made of synthetic material are used. The disadvantage in this is that cleaning is very complicated and not sufficiently effective. Particularly deep subgingival parts cannot be reached in this manner.
OBJECT OF THE INVENTION
Therefore, it is the object of the invention to create a device of the above mentioned type that does not have these disadvantages.
A device for treating cleaning a surface is proposed for attaining this object that has the features cited in claim 1. Due to the fact that a cleaning curette is provided which at least partially covers the surface of the implant or the abutment, planer cleaning is guaranteed that is considerably more thorough than is the case with conventional methods.
An embodiment of the device is preferred in which the cleaning curette is formed as a bushing that has at least one slot. An edge of the slot serves quasi as a cutter that removes substances that are deposited on the surface of the implant or the abutment. The curette is thereby constructed very simply and, thus, can be realized in a cost-effective manner. The embodiment guarantees thorough cleaning of the affected surfaces.
In addition, an embodiment of the device is preferred in which the slot in the bushing runs approx. along an imaginary helical line that is arranged in such a way that the removed substances are discharged by a rotation of the cleaning curette in the oral cavity.
Particularly preferred is an embodiment of the device in which the cleaning curette is formed as a rotationally symmetrical part and can be attached to the implant or the abutment. This produces an especially simple and simultaneously very intensive cleaning of the surfaces particularly in the cleaning of rotationally symmetrical implants and abutments.
In addition, an embodiment of the device is preferred in which the cleaning curette can be placed on a receptacle that considerably simplifies the handling of the curette and, if necessary, can also be coupled with a mechanical driving gear.
An additional embodiment of the device is distinguished by the fact that a guide can be placed on the implant or abutment to be cleaned onto which guide the cleaning curette can be attached and thereby be easily brought up to the surfaces that are to be cleaned.
Additional embodiments are yielded from the remaining sub-claims.
The invention is explained in the following on the basis of the drawings. These show:
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 A longitudinal partial section through a first embodiment of a device for cleaning a surface that is attached to an implant.
FIG. 2 A side view of a cleaning curette as per FIG. 1.
FIG. 3 A longitudinal section through the lower part of a second embodiment of a device of the type addressed here.
DETAILED DESCRIPTION OF THE INVENTION
In the sectional representation in FIG. 1, one can recognize an implant that is inserted into a jawbone 3. The implant 1 is formed to be rotationally symmetrical. The half of the implant 1 that lies to the left of the center line 5 is reproduced in a longitudinal section and that which lies to the right of this line is reproduced as a side view. The representation in FIG. 1 shows only the upper end of the implant 1 which continues into the jawbone 3.
The implant 1 is formed at least in its upper area as a hollow body or bushing and is provided with an internal screw thread 7. The exterior of the implant 1 can be provided with a biologically compatible coating 9 for instance one made of titanium plasma.
A guide pin 11 that serves as a guide is provided above the implant 1, which guide pin, for its part, is preferably formed to be rotationally symmetrical and engages with a threaded pin 13 in a hollow area 15 of the implant 1. It is provided with an external screw thread 17 that works togeth
REFERENCES:
patent: 4795344 (1989-01-01), Brewer, Jr.
patent: 5244390 (1993-09-01), Lazzara et al.
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