Endo-osseous implant
OwnerJiro Hasegawa, Bunkichi Azumainventors
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Abstract
The present invention provides an improved endo-osseous implant which has sufficient binding force against occlusal pressure from every direction and does not cause any inflammation. The endo-osseous implant of the invention includes a large number of concaves on the circumference of a cylindrical main body embedded in dental alveoli. Each of the concaves has a shape of hemisphere or alternatively a shape of double hemisphere consisting of an upper hemisphere of greater diameter and a lower hemisphere of smaller diameter. Part of the cylindrical main body in contact with gingiva is covered with a polycrystal ceramic layer, and fine notches are further formed on the residual surface of the main body.
Claims20
An endo-osseous implant, for embedding in dental alveoli, said implant comprising a plurality of concave surfaces on a tubular wall of a cylindrical main body, wherein each said concave surface has a shape of a double hemisphere consisting of an upper hemisphere of greater diameter and a lower hemisphere of smaller diameter.
An endo-osseous implant comprising
- a substantially tubular main body having a top and a bottom and a tubular surface therebetween, and adapted for embedding in dental alveoli,
- a plurality of concave surfaces disposed on said tubular outer surface of said main body, and
- first receiving means located at the top of said main body for receiving an implanting instrument and for receiving and mounting a prosthetic holder, wherein each said plurality of concavities comprises a substantially double hemispherical shape.
An endo-osseous implant for embedding in dental alveoli, said implant comprising
- a cylindrical main body having a top and a bottom and a tubular wall having an outer surface therebetween, said main body adapted for embedding in dental alveoli,
- a plurality of concavities disposed on an outer surface of said tubular wall of said main body,
- first receiving means located at the top of said main body for receiving an implanting instrument and for receiving and mounting a prosthetic holder, and
- second receiving means located on a lower portion of said main body and having spiral threads for embedding said main body of said implant in said dental alveoli,
- wherein said plurality of concavities include a plurality of double hemispherical shape concavities.
Dependencies are inferred from the claim text.