← Back to Patent Explorer
US4856994A Expired / Lapsed US ⏱️ 0.0 years remaining

Periodontal restoration components

Assignee: Biomet 3I LLC
•
Filing: 1988-01-25
•
Granted: 1989-08-15
•
Expires: 2008-01-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A healing cap for use in the second stage of dental implantology covers the implanted prosthesis and shields its upper surface from overgrowth of gum tissue, and at the same time maintains an opening through the fleshy gum tissue that overlies the implant. This cap is shown to be useful without as well as with an intervening transmucosal abutment. A unique holder/driver enables the healing cap to be located and fixed in place in remotely accessible places in the mouth with minimal requirement for manual dexterity.

Inventors

  • 👤 Richard J. Lazzara
  • 👤 Keith D. Beaty

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 05:06
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/008; A61C8/0089

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 198 words
In combination, an auxiliary component for a dental device implanted in bone of a patient's jaw, said implanted device having a gingivally-oriented terminating surface, and an opening through said terminating surface into a bore extending axially into said device for receiving a prosthodontic restoration, said auxiliary component having at a first end a post extending from said component for engaging in said bore, said auxiliary component having an outer surface at a second end opposite said first end, and a non-circular manipulating socket opening through said outer surface into said auxiliary component, said socket tapering in cross-section from wider at said outer surface to narrower within said auxiliary component, and a manipulating tool having a shank fitted with a bit of non-circular cross-section substantially matching the cross-section of said socket, said bit being tapered similarly to the taper in cross-section of said socket from a narrower portion at its extremity having a cross-sectional dimension similar to the narrower portion of said socket, to a wider portion toward said shank having cross-sectional dimensions similar to the wider opening into said socket, for facilitating the entrance of said bit into said socket and frictionally engaging said bit in said socket.
Claim 2
Dependent Claim 198 words
In combination, an auxiliary component for a dental device implanted in bone of a patient's jaw, said implanted device having a gingivally-oriented terminating surface, and an opening through said terminating surface into a bore extending axially into said device for receiving a prosthodontic restoration, said auxiliary component having at a first end a post extending from said component for engaging in said bore, said auxiliary component having an outer surface at a second end opposite said first end, and a non-circular manipulating socket opening through said outer surface into said auxiliary component, said socket tapering in cross-section from wider at said outer surface to narrower within said auxiliary component, and a manipulating tool having a shank fitted with a bit of non-circular cross-section substantially matching the cross-section of said socket, said bit being tapered similarly to the taper in cross-section of said socket from a narrower portion at its extremity having a cross-sectional dimension similar to the narrower portion of said socket, to a wider portion toward said shank having cross-sectional dimensions similar to the wider opening into said socket, for facilitating the entrance of said bit into said socket and frictionally engaging said bit in said socket.
Claim 3
Dependent Claim 39 words
A combination according to claim 1 in which said socket tapers about 0.001 inch over an axial depth of about 0.035 inch, and said bit tapers about 0.001 inch over an axial length not greater than about 0.035 inch.
Claim 4
Dependent Claim 17 words
A combination according to claim 2 in which said axial length is less than said axial depth.
Claim 5
Dependent Claim 41 words
An auxiliary component according to claim 1, having a transversely-flattened portion extending supragingivally for providing temporary retention of an overdenture lined with a soft material, said second portion including radially-oriented physical retention means for cooperating retentively with said soft reline material.
Claim 6
Dependent Claim 14 words
An auxiliary component according to claim 1 in which said outer surface is convex.

References Cited (Backward Citations)

US3576074A Cited
US4253833A Cited
US4722688A Cited
US4439152A Cited
US4588381A Cited
US4552532A Cited
US4723913A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-08-14 1993-02-13 1993-08-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-08-14 1997-02-13 1997-08-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-08-14 2001-02-13 2001-08-15 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag