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US 6,273,722 B1Granted
Hybrid press fit-threaded dental implant
AssigneeSwiss Implants, Inc.
InventorCarol L. Phillips
Life of this patent
Estimating the term…
Abstract
A dental implant has a body with a press fit diameter fit into a hole drilled into a patient's jaw bone, and having a helical groove machined into the body diameter to improve the rate of growth of bone tissue thereinto to securely lock the implant in position. A shallow height oppositely wound helical thread may be added to increase the holding force upon initial fitting of the implant. The shallow height and long pitch of the thread produces only minimal stress of the surrounding bone tissue to insure long term retention.
Claims8
An improved dental implant for providing a mounting for a prosthetic of a type including:
- an elongated implate body having a main cylindrical portion, a forward end and a rear end, the improvement comprising:
- said main portion having a helical groove formed therein of a long pitch helix angle establishing intermediate cylindrical surfaces in between turns of said helical groove, said cylindrical surfaces forming a substantial portion of the axial length of said main portion of said body;
- and
- a low height, long pitch, helical thread formed extending radially outward from said cylindrical portion and located intermediate said helical groove.
1 more element
Dependencies are inferred from the claim text.