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US3629943A Expired / Lapsed US ⏱️ 0.0 years remaining

Dental prosthetic assembly

Assignee: Coltene Holding AG
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Filing: 1970-07-13
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Granted: 1971-12-28
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Expires: 1990-07-13
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Abstract

Abstract Apparatus and method for securing a dental prosthetic structure, such as a false tooth, to a patient''s tooth stub and comprising the drilling of a bore in the tooth stub, inserting a preformed hollow sleeve having a closed distal end and an open proximal end in the bore so drilled, inserting the lower end portion of an intermediate rod member within the opening in said sleeve to frictionally secure the same therein forming a dental prosthetic structure with an opening in the bottom thereof and with the bottom peripheral surface thereof conformed with that of the prepared tooth stub or jawbone, and bending over the upper portion of said rod member upon itself and securing the bent-over rod portion within the opening in said dental prosthetic structure by means of a self-curing resin to thereby secure said prosthetic structure with respect to said prepared tooth stub.

Inventors

  • 👤 Abraham Gindea

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 17:24
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/225; A61C13/30

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 195 words
A dental prosthetic assembly comprising a preformed hollow sleeve member adapted to be inserted and secured within a conformally shaped bore in a tooth stub in a patient''s mouth, said sleeve member having a longitudinal opening and a closed distal end, an intermediate rod member, a dental prosthetic structure, a lower end portion of said intermediate rod member being adapted to be frictionally inserted into said opening and frictionally engageable therein, an upper end portion of said intermediate rod member including an anchoring member for securement of said intermediate rod member to said dental prosthetic structure, said hollow sleeve member including a saddle with an upper end thereof and extending laterally outward from a proximal end of said opening, said sleeve member and said saddle forming an insert assembly, a lower peripheral surface of said saddle being conformal with a peripheral surface of said bored tooth stub, said dental prosthetic structure having an opening formed in a bottom peripheral surface thereof, means for securing said anchoring member with said lastmentioned opening, and the bottom surface of said dental prosthetic structure being substantially conformal with a peripheral upper surface of said saddle and in registry therewith.
Claim 2
Dependent Claim 195 words
A dental prosthetic assembly comprising a preformed hollow sleeve member adapted to be inserted and secured within a conformally shaped bore in a tooth stub in a patient''s mouth, said sleeve member having a longitudinal opening and a closed distal end, an intermediate rod member, a dental prosthetic structure, a lower end portion of said intermediate rod member being adapted to be frictionally inserted into said opening and frictionally engageable therein, an upper end portion of said intermediate rod member including an anchoring member for securement of said intermediate rod member to said dental prosthetic structure, said hollow sleeve member including a saddle with an upper end thereof and extending laterally outward from a proximal end of said opening, said sleeve member and said saddle forming an insert assembly, a lower peripheral surface of said saddle being conformal with a peripheral surface of said bored tooth stub, said dental prosthetic structure having an opening formed in a bottom peripheral surface thereof, means for securing said anchoring member with said lastmentioned opening, and the bottom surface of said dental prosthetic structure being substantially conformal with a peripheral upper surface of said saddle and in registry therewith.
Claim 3
Dependent Claim 34 words
A dental prosthetic structure in accordance with claim 1, wherein said anchoring member comprises the upper end portion of said intermediate rod member which upper portion is bent over toward itself in spaced relationship.
Claim 4
Dependent Claim 21 words
A dental prosthetic assembly in accordance with claim 2, wherein the opening formed in said sleeve member is of cylindrical configuration.
Claim 5
Dependent Claim 20 words
A dental prosthetic assembly in accordance with claim 3, wherein said intermediate rod member has a substantially circular cross section.
Claim 6
Dependent Claim 167 words
A dental prosthetic assembly comprising a hollow sleeve member adapted to be secured within a conformally shaped bore in a tooth stub in a patient''s mouth, said sleeve member being provided with a longitudinal opening and a closed distal end, an intermediate member, a dental prosthetic structure, a lower end portion of said intermediate member being adapted to be inserted into said opening and engageable therein, an upper end portion of said intermediate member including an anchoring element for securement of said intermediate member to said dental prosthetic structure, said hollow sleeve member including a saddle disposed at an upper end thereof and extending laterally outward from a proximal end of said opening, said sleeve member and said saddle forming an assembly, a lower peripheral surface of said saddle being conformal with a peripheral surface of said bored tooth stub, said dental prosthetic structure being provided with an opening formed in a bottom peripheral surface thereof, and means for securing said anchoring element with said last-mentioned opening.
Claim 7
Dependent Claim 167 words
A dental prosthetic assembly comprising a hollow sleeve member adapted to be secured within a conformally shaped bore in a tooth stub in a patient''s mouth, said sleeve member being provided with a longitudinal opening and a closed distal end, an intermediate member, a dental prosthetic structure, a lower end portion of said intermediate member being adapted to be inserted into said opening and engageable therein, an upper end portion of said intermediate member including an anchoring element for securement of said intermediate member to said dental prosthetic structure, said hollow sleeve member including a saddle disposed at an upper end thereof and extending laterally outward from a proximal end of said opening, said sleeve member and said saddle forming an assembly, a lower peripheral surface of said saddle being conformal with a peripheral surface of said bored tooth stub, said dental prosthetic structure being provided with an opening formed in a bottom peripheral surface thereof, and means for securing said anchoring element with said last-mentioned opening.
Claim 8
Dependent Claim 33 words
A dental prosthetic structure in accordance with claim 5, wherein said bottom surface of said dental prosthetic structure is substantially conformal with a peripheral upper surface of said saddle and in registry therewith.
Claim 9
Dependent Claim 23 words
A dental prosthetic structure in accordance with claim 5, wherein said intermediate member defines a rod provided with a substantially circular cross section.
Claim 10
Dependent Claim 23 words
A dental prosthetic structure in accordance with claim 5, wherein said anchoring element includes a portion bent over toward itself in spaced relationship.
Claim 11
Independent Claim 145 words
A method of forming a dental prosthetic assembly including a tooth stub disposed in a patient''s mouth and comprising the steps of preparing said tooth stub for said dental prosthetic assembly including drilling of a substantially centrally disposed bore therein, forming a saddle integral with a preformed hollow sleeve member to thereby form an insert assembly, forming a bottom peripheral surface of said saddle conformally with an upper peripheral surface of said prepared tooth stub, positionally securing the hollow sleeve member in said bore to thereby positionally secure the insert assembly to the prepared tooth stub, securing an upper anchoring member of an intermediate rod member to a dental prosthetic structure, and frictionally inserting a lower end portion of said intermediate rod member into an opening in the hollow sleeve member to thereby positionally secure said dental prosthetic structure with respect to said tooth stub.
Claim 12
Independent Claim 145 words
A method of forming a dental prosthetic assembly including a tooth stub disposed in a patient''s mouth and comprising the steps of preparing said tooth stub for said dental prosthetic assembly including drilling of a substantially centrally disposed bore therein, forming a saddle integral with a preformed hollow sleeve member to thereby form an insert assembly, forming a bottom peripheral surface of said saddle conformally with an upper peripheral surface of said prepared tooth stub, positionally securing the hollow sleeve member in said bore to thereby positionally secure the insert assembly to the prepared tooth stub, securing an upper anchoring member of an intermediate rod member to a dental prosthetic structure, and frictionally inserting a lower end portion of said intermediate rod member into an opening in the hollow sleeve member to thereby positionally secure said dental prosthetic structure with respect to said tooth stub.
Claim 13
Dependent Claim 31 words
A method in accordance with claim 9 comprising the additional step of forming a bottom peripheral surface of said dental prosthetic structure conformally with an upper peripheral surface of said saddle.
Claim 14
Dependent Claim 71 words
A method in accordance with claim 10 comprising the additional steps of forming the upper anchoring member of said intermediate rod member by bending an upper portion of said rod member over toward itself in spaced relationship, providing an opening in the bottom surface of said dental prosthetic structure of a sufficient depth to receive said anchoring member, and securing said anchoring member within the opening in said dental prosthetic structure.

References Cited (Backward Citations)

US965246A Cited
US1517500A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-12-27 1975-06-28 1975-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-12-27 1979-06-28 1979-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-12-27 1983-06-28 1983-12-28 $7700.00 Window Closed / Lapsed

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