US 4,377,382 A · Denture support frame

Abstract

A rigid bar arranged to removably support an artificial denture is curved substantially to the longitudinal contour of the lower jaw bone. This bar has a front support arranged to be implanted in a front recess in the jaw bone and also includes a rear ramus implant portion on each side arranged to be implanted in the ramus portions of the jaw bone. Each of the ramus implant portions comprises a plate-like extension of the rigid bar having laterally facing surfaces. This rearward plate-like extension has an elongated length so as to project above or below the plane of the bar or in a preferred construction, such extension projects both above and below such bar to provide an extended implant attachment to the jaw bone structure. The plate-like extension angles forwardly from top to bottom so that it can be embedded efficiently in the rearward portion of the jaw bone. Such rearward plate-like extensions also include laterally extending tabs arranged to seat on the jaw bone for further adding to support for the ramus implant portions.

Claims6

Dependent claims

A denture support frame arranged to be attached to the horizontal portion of the lower jaw bone as well as to the upwardly directed rear ramus portion thereof, said support frame comprising

(a) a one-piece rigid bar arranged to support an artificial denture thereon,
(b) said bar having front and rear portions and being curved substantially to the longitudinal contour of the lower jaw bone,
(c) said bar having a rear ramus implant portion on each side arranged to be implanted in a recess cut in the jaw bone,
(d) front support means on said bar arranged for engagement with the jaw bone,
(e) each of said ramus implant portions comprising a rear plate-like extension of said bar having laterally facing surfaces and upper and lower ends,
(f) said rear plate-like extension projecting rearwardly and forwardly of the rearward end of said bar to provide an extended implant attachment to jaw bone structure,
(g) and laterally extending tab means on said rearwardly directed plate-like extensions arranged to seat on the jaw bone for further adding to support area for the ramus implant portions.

4 more elements

A denture support frame arranged to be attached to the horizontal portion of the lower jaw bone as well as to the upwardly directed rear ramus portion thereof, said support frame comprising

(a) a one-piece rigid bar arranged removably to support an artificial denture thereon,
(b) said bar having front and rear portions and being curved substantially to the longitudinal contour of the lower jaw bone,
(c) said bar having a rear ramus implant portion on each side arranged to be implanted in the jaw bone,
(d) and front support means on said bar arranged for engagement with the jaw bone,
(e) each of said ramus implant portions comprising a blade extending forwardly from the rear of said bar arranged to be implanted in recesses suitably cut in the jaw bone,
(f) said ramus implant portions also including a spike-like structure of substantially uniform width and thickness projecting rearwardly from the rear of said bar and terminating in a pointed end, said spike-like structures being arranged to be forcibly driven rearwardly into the ramus portions of the jaw bone,
(h) said blades and spike-like structures being angled downwardly relative to said bar to allow said blades to be set in recesses cut in the ramus portions of the jaw bone and portions of the jaw bone forwardly of the ramus portions and to allow said spike-like structures to be driven upwardly into the ramus portions of the jaw bone.

4 more elements

Dependencies are inferred from the claim text.

Denture support frame

Life of this patent

Denture support frame

Life of this patent

Abstract

Claims6