Dental implant system
First Claim
1. A dental implant system for connection in the jawbone of a patient, comprising:
- an implant having an elongated body, said body having a longitudinal axis and a proximal surface generally transverse to said longitudinal axis, said proximal surface having a non-round peripheral edge as viewed along said axis, and an opening having a non-round cross-section extending from said proximal surface axially into said body, said elongated body having a non-round cross section extending the entire length thereof and having a major axis and a minor axis orthogonally positioned,said non-round cross section being one of ovoid and generally rectangular, and including two opposed first portions on said major axis that are surfaces of a circular cylinder, said first portions being threaded for engagement in a circular hole formed in a jawbone, said non-round cross section also including two opposed substantially continuous non-threaded second portions located between said first portions, said two first portions and said two second portions together defining said non-round cross section of said body, a first distance between said opposed second portions on said minor axis being less than a second distance between said opposed first portions on said major axis, whereby adjacent implants may be placed closer together in said jawbone by having said adjacent implants with second portions opposed.
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Accused Products
Abstract
An implant body has a non-round cross sectional shape, for example, ovoidal or rectangular. Lateral surfaces of the implant include threaded portions of a circular cylinder such that the implant, although non-round in cross section, can threadably engage a tapped circular opening in the jawbone leaving lateral spaces. Bone grows into the spaces between implant and the jawbone socket. The implant is shaped similarly to the root structure of a natural tooth and can be oriented, about its longitudinal axis, at any angle relative to the general curvature of the jawbone where the implant is seated. A more natural appearance of the mouth is achieved; prosthetic teeth may be positioned closer together without loss of strength between the implant and the jawbone. A non-round cross section of an implant opening receives an abutment post of corresponding cross section to prevent rotation of the abutment relative to the implant. A cemented connection prevents axial displacement between the abutment and implant. No screws are used in the prosthesis.
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Citations
14 Claims
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1. A dental implant system for connection in the jawbone of a patient, comprising:
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an implant having an elongated body, said body having a longitudinal axis and a proximal surface generally transverse to said longitudinal axis, said proximal surface having a non-round peripheral edge as viewed along said axis, and an opening having a non-round cross-section extending from said proximal surface axially into said body, said elongated body having a non-round cross section extending the entire length thereof and having a major axis and a minor axis orthogonally positioned, said non-round cross section being one of ovoid and generally rectangular, and including two opposed first portions on said major axis that are surfaces of a circular cylinder, said first portions being threaded for engagement in a circular hole formed in a jawbone, said non-round cross section also including two opposed substantially continuous non-threaded second portions located between said first portions, said two first portions and said two second portions together defining said non-round cross section of said body, a first distance between said opposed second portions on said minor axis being less than a second distance between said opposed first portions on said major axis, whereby adjacent implants may be placed closer together in said jawbone by having said adjacent implants with second portions opposed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification