US5106299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental prosthesis for use with an oral implant, and method of installation
Assignee: Individual
•
Filing: 1991-06-25
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Granted: 1992-04-21
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Expires: 2011-06-25
Abstract
Abstract A dental implant prosthesis for use with an oral implant of the type including an implant shaft implanted in a suitably prepared bore in the jawbone of a patient and an abutment connectable to the implant shaft for supporting an external artificial tooth structure, comprises an insert which is insertable in the abutment and a spring-loaded pin which is guided through aligned holes of the insert and abutment and slightly projects outwards from the abutment. The tooth structure is pushed over the abutment, while simultaneously retracting the projecting portion of the pin against the force of the spring to allow the tooth structure to be slid past the pin and eventually to sit upon the gingival area around the bore. The pin snaps back and engages a hole of the tooth structure to securely lock the latter in position.
Inventors
- 👤 Kambiz M. Ghalili
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:03
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0048
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
154 words
A dental implant prosthesis, comprising: a implant shaft defining a longitudinal axis and provided for implantation in a prepared bore in a jawbone of a patient, with the jawbone having a buccal and lingual side; a hollow abutment including a screw for threaded engagement with said implant shaft in direction of said longitudinal axis of said implant shaft, said abutment extending above said bore for supporting an artificial tooth structure and being provided with a hole at the lingual side; and an insert adapted for placement within said abutment and bearing against said screw when being mounted in said abutment to hold said screw in position; and resilient locking means for detachably securing said tooth structure to said abutment, said locking means being inserted from the lingual side through said hole in said abutment and snapping in a hole at the lingual side of said tooth structure after placing the latter over said abutment.
Claim 2
Dependent Claim
154 words
A dental implant prosthesis, comprising: a implant shaft defining a longitudinal axis and provided for implantation in a prepared bore in a jawbone of a patient, with the jawbone having a buccal and lingual side; a hollow abutment including a screw for threaded engagement with said implant shaft in direction of said longitudinal axis of said implant shaft, said abutment extending above said bore for supporting an artificial tooth structure and being provided with a hole at the lingual side; and an insert adapted for placement within said abutment and bearing against said screw when being mounted in said abutment to hold said screw in position; and resilient locking means for detachably securing said tooth structure to said abutment, said locking means being inserted from the lingual side through said hole in said abutment and snapping in a hole at the lingual side of said tooth structure after placing the latter over said abutment.
Claim 3
Dependent Claim
60 words
A dental implant prosthesis as defined in claim 1 wherein said insert is provided with two opposing holes in alignment with said hole of said abutment, said locking means extending through said hole of said abutment and said holes of said insert and having one end projecting beyond said abutment at the lingual side for engagement with the tooth structure.
Claim 4
Dependent Claim
18 words
A dental implant prosthesis as defined in claim 1 wherein said resilient locking means is a spring-loaded pin.
Claim 5
Dependent Claim
179 words
In a dental implant prosthesis for use with an oral implant of the type having an implant shaft for implantation in a prepared bore in a jawbone of a patient, with the jawbone having a buccal and lingual side; the improvement comprising: a hollow abutment including a screw for threaded engagement with said implant shaft in direction of said longitudinal axis of said implant shaft, said abutment extending above said bore for supporting an artificial tooth structure and being provided with a hole at the lingual side; an insert adapted for placement within said abutment and bearing against said screw when being mounted in said abutment to hold said screw in position, said insert being provided with two opposing holes in alignment with said hole of said abutment; and a spring-loaded pin for detachably securing said tooth structure to said abutment, said locking means being guided from the lingual side through said hole in said abutment and said aligned holes of said insert and snapping in a hole of said tooth structure after placing the latter over said abutment.
Claim 6
Dependent Claim
179 words
In a dental implant prosthesis for use with an oral implant of the type having an implant shaft for implantation in a prepared bore in a jawbone of a patient, with the jawbone having a buccal and lingual side; the improvement comprising: a hollow abutment including a screw for threaded engagement with said implant shaft in direction of said longitudinal axis of said implant shaft, said abutment extending above said bore for supporting an artificial tooth structure and being provided with a hole at the lingual side; an insert adapted for placement within said abutment and bearing against said screw when being mounted in said abutment to hold said screw in position, said insert being provided with two opposing holes in alignment with said hole of said abutment; and a spring-loaded pin for detachably securing said tooth structure to said abutment, said locking means being guided from the lingual side through said hole in said abutment and said aligned holes of said insert and snapping in a hole of said tooth structure after placing the latter over said abutment.
Claim 7
Independent Claim
171 words
A method of installing a dental implant prosthesis in a jawbone of a patient, comprising the steps of: preparing a bore in the jawbone having a lingual side and a buccal side; installing an implant shaft in the bore; affixing an abutment to the implant shaft by means of a screw, with the abutment extending above the jawbone for providing support for an artificial tooth structure; placing an insert within the abutment, with the insert bearing against the screw to secure the abutment to the implant shaft; inserting a resilient locking element through a hole of the abutment, with one end of the locking element projecting at the lingual side outwards from the abutment and with the other end of the locking element being suitably supported in the abutment; and retracting the projecting portion of the resilient locking element and sliding the artificial tooth structure over the abutment, with the locking element snapping back and engaging a lingually disposed hole of the tooth structure for detachably securing the latter in position.
Claim 8
Independent Claim
171 words
A method of installing a dental implant prosthesis in a jawbone of a patient, comprising the steps of: preparing a bore in the jawbone having a lingual side and a buccal side; installing an implant shaft in the bore; affixing an abutment to the implant shaft by means of a screw, with the abutment extending above the jawbone for providing support for an artificial tooth structure; placing an insert within the abutment, with the insert bearing against the screw to secure the abutment to the implant shaft; inserting a resilient locking element through a hole of the abutment, with one end of the locking element projecting at the lingual side outwards from the abutment and with the other end of the locking element being suitably supported in the abutment; and retracting the projecting portion of the resilient locking element and sliding the artificial tooth structure over the abutment, with the locking element snapping back and engaging a lingually disposed hole of the tooth structure for detachably securing the latter in position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-04-21 | 1995-10-21 | 1996-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-21 | 1999-10-21 | 2000-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-21 | 2003-10-21 | 2004-04-21 | $7700.00 | Window Closed / Lapsed |