Osteointegrated implants and dental implant assemblies

Claim 2

An osteointegrated implant for implantation into the jawbone of a person in order to secure a crown, bridge or denture thereto, comprising: a shank formed with external threads at one end receivable in a bore formed in the jawbone; a cap at the opposite end of the shank and formed with an apertured end wall, to which cap the crown, bridge or denture is securable; a threaded pin threadable into said opposite end of the shank through the apertured end wall of the cap for removably securing said cap to the shank; and a shock-absorber spring interposed between said cap and said opposite end of the shank to absorb mastication forces applied to the crown, bridge or denture when secured to said cap; said opposite end of the shank being of cyclindrical configuration, and said cap having a cylindrical side wall enclosing said opposite end of the shank with a small clearance to permit some lateral as well as axial movement of the cap with respect to said shank.

Claim 3

The osteointegrated implant according to claim 1, wherein the outer face of said threaded end of the shank is formed with one or more axially-extending recesses permitting tissue growth therein for enhancing the anchoring of the implant in the jawbone.

Claim 4

The osteointegrated implant according to claim 1, wherein said shank is further formed with a blind bore starting from its threaded end and extending a short distance axially thereof permitting tissue growth therein for enhancing the anchoring of the implant in the jawbone.

Claim 5

The osteointegrated implant according to claim 1, wherein said shank is further formed with a transversely-extending bore through the threaded end thereof permitting tissue growth therein for enhancing the anchoring of the implant in the jawbone.

Claim 6

The osteointegrated implant according to claim 1, wherein said opposite end of the shank includes a socket receiving said threaded pin.

Claim 7

The osteointegrated implant according to claim 1, wherein said opposite end of the shank includes a socket, and a correction adaptor formed at one end with a threaded stem threaded into said socket, and at the opposite end with another threaded socket receiving said threaded pin.

Claim 8

The osteointegrated implant according to claim 1, in combination with a crown secured to said cap by a dental adhesive which covers the head of said pin.

Claim 9

An osteointegrated implant assembly comprising at least two osteointegrated implants each according to claim 1, joined together by a bar secured to the caps of the two implants.

Claim 10

The implant assembly according to claim 8, wherein there are four osteointegrated implants, including two center implants whose caps are joined together by a long bar, and two outer implants, the inner side of the cap of each outer implant being joined by a short bar to the outer side of the cap of one of the center implants.

Claim 11

The implant assembly according to claim 9, wherein said long bar is configured to serve as one part of a snap-fastener for receiving another snap-fastener part carried by the denture.

Claim 12

The implant assembly according to claim 10, including two further short bars each joined to the outer side of the cap of one of the outer implants, each of said further short bars being formed with one snap-fastener part for receiving another snap-fastener part carried by the denture.

Claim 13

The implant assembly according to claim 11, in combination with a denture having a first snap-fastener part removably attached to said long bar of the implant assembly, and two further snap-fastener parts removably attachable to the snap-fastener parts of said two further short bars.

Claim 14

The combination of implant assembly and denture according to claim 12, wherein said first snap-fastener part carried by the denture comprises a saddle clamp removably attached to said long bar of the implant assembly.

Claim 15

The combination according to claim 12, wherein said two further snap-fastener parts carried by the denture comprises pins removably attachable within sockets formed in each of two further short bars.

Claim 16

An osteointegrated implant assembly for implantation into the jawbone of a person in order to secure a bridge or denture thereto, comprising: two implants each including a shank formed with external threads at one end receivable in a bore formed in the jawbone; a cap at the opposite end of each shank and formed with an apertured end wall, to which cap the bridge or denture is securable; a threaded pin threadable into the opposite end of each shank through the apertured end wall of the cap for removably securing the cap the shank; a shock-absorber spring interposed between each cap and the opposite end of its shank to absorb mastication forces applied to the bridge or denture when secured to said cap; said opposite end of the shank being of cyclindrical configuration, and said cap having a cylindrical side wall enclosing said opposite end of the shank with a small clearance to permit some lateral as well as axial movement of the cap with respect to said shank; and a bar secured to the caps of the two implants.

Claim 17

An osteointegrated implant assembly for implantation into the jawbone of a person in order to secure a bridge or denture thereto, comprising: two implants each including a shank formed with external threads at one end receivable in a bore formed in the jawbone; a cap at the opposite end of each shank and formed with an apertured end wall, to which cap the bridge or denture is securable; a threaded pin threadable into the opposite end of each shank through the apertured end wall of the cap for removably securing the cap the shank; a shock-absorber spring interposed between each cap and the opposite end of its shank to absorb mastication forces applied to the bridge or denture when secured to said cap; said opposite end of the shank being of cyclindrical configuration, and said cap having a cylindrical side wall enclosing said opposite end of the shank with a small clearance to permit some lateral as well as axial movement of the cap with respect to said shank; and a bar secured to the caps of the two implants.

Claim 18

The implant assembly according to claim 15, wherein there are four implants, including two center implants whose caps are joined together by a long bar, and two outer implants, the inner side of the cap of each outer implant being joined by a short bar to the outer side of the cap of one of the center implants.

Claim 19

The implant assembly according to claim 16, wherein said long bar is configured to serve as one part of a snap-fastener for receiving another snap-fastener part carried by the denture.