US3866321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crown and bridge prefabricated system and implant
Assignee: Individual
•
Filing: 1974-01-02
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Granted: 1975-02-18
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Expires: 1994-01-02
Abstract
Abstract A prefabricated tooth system which serves as a permanently secured tooth section which is easily removable for purposes of repair or modification. The tooth system comprises a bar which spans the space left by the missing teeth. Artificial teeth are fastened to the bar to form a bridge-like structure. The artificial teeth comprise a bonded composite of a crown and gumlike member. The gum-like member acts as a replacement structure for the resorbed gum and also as a masticatory load absorbing member between the crown and the resorbed gum. This load absorbing ability of the gum-like member provides a viable bridge structure which allows the artificial structure to function as a natural tooth system. A new type of implant is also provided for anchoring the bar and/or an artificial tooth of the system to the jaw of the mouth.
Inventors
- 👤 Maurice Valen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:13
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0048; A61C8/0018; A61C8/0019; A61C8/0075
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
103 words
A tooth implant for anchoring at least one artificial tooth to a jaw bone in a mouth of an individual, comprising: a blade-like section having a thin cross-section and having a plurality of flexible cup-like protuberances protruding therfrom, said cup-like protuberances acting to anchor said blade-like section to the walls of said jaw bone, but being flexible so as to give when they abut against the bone of the jaw in order to prevent necrosis; and at least one stem section extending from said blade-like section into the mouth of the individual, said stem section adapted to receive an artificial tooth disposed thereon.
Claim 2
Dependent Claim
103 words
A tooth implant for anchoring at least one artificial tooth to a jaw bone in a mouth of an individual, comprising: a blade-like section having a thin cross-section and having a plurality of flexible cup-like protuberances protruding therfrom, said cup-like protuberances acting to anchor said blade-like section to the walls of said jaw bone, but being flexible so as to give when they abut against the bone of the jaw in order to prevent necrosis; and at least one stem section extending from said blade-like section into the mouth of the individual, said stem section adapted to receive an artificial tooth disposed thereon.
Claim 3
Dependent Claim
28 words
The tooth implant of claim 1, wherein said stem section has a slot in an end portion thereof, for receiving a bar-like member of an artificial tooth structure.
Claim 4
Dependent Claim
31 words
The tooth implant of claim 1, wherein said stem section has an aperture in an end portion thereof, for receiving a pin for fastening said artificial tooth to said stem section.
Claim 5
Dependent Claim
15 words
The tooth implant of claim 1, wherein said stem section is substantially cylindrical in shape.
Claim 6
Dependent Claim
15 words
The tooth implant of claim 1, wherein two stem sections extend from said blade-like section.
Claim 7
Dependent Claim
13 words
The tooth implant of claim 1, wherein said blade-like section is substantially straight.
Claim 8
Dependent Claim
16 words
The tooth implant of claim 1, wherein said blade-like section is approximately 1 mm. in thickness.
Claim 9
Dependent Claim
16 words
The tooth implant of claim 1, wherein said stem section is approximately 2 mm. in thickness.
Claim 10
Dependent Claim
21 words
The tooth implant of claim 1, wherein said blade-like section can be shaped to fit different sections of said jaw bone.
Claim 11
Dependent Claim
27 words
The tooth implant of claim 1, wherein said blade-like section extends from the stem section in a bifurcated manner, so as to suggest a tuning fork structure.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |