# US 10,441,386 B2 · Dental implant > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,441,386 B2 - Document ID: US10441386B2 - Status: Granted - Kind: B2 - Application number: 14/123,289 - Filed: 2012-06-03 - Published: 2014-04-17 - Granted: 2019-10-15 - Earliest claimed: 2011-06-02 - Assignees: MIS Implants Technologies Ltd. - Applicants: Yuval Jacoby; Nitzan Bichacho - Inventors: Yuval Jacoby; Nitzan Bichacho - Web page: https://patentgrep.com/patent/US10441386B2 ## CPC - A61C 8/0075: {Implant heads specially designed for receiving an upper structure (if separable from the implant A61C8/005)} - A61C 8/0006: {Periodontal tissue or bone regeneration (support means for endoprosthetic bone substitute or bone graft implants A61F2/2846)} - A61C 8/0018: {characterised by the shape} - A61C 8/0022: {Self-screwing (A61C8/0028 takes precedence)} - A61C 8/0066: {with positioning means (A61C8/006 takes precedence)} - A61C 8/0068: {with an additional screw} - A61C 8/0069: {tapered or conical connection} - A61C 8/0077: {with shape following the gingival surface or the bone surface} - A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00) ## Abstract A dental implant including an implant body having a top surface, and at least one non-annular cutaway portion longitudinally extending downwardly from the top surface along one side of the body and outwardly to the periphery, and a method for making the implant. The implant body preferably includes a body portion and a head portion integrally formed with the body portion, the body portion has a periphery and the head portion has a non-circular periphery, and the periphery of the head portion is smaller than the periphery of the body portion. ## Claims ### Claim 1 A dental implant for implantation in a jaw bone, comprising: an implant body having a screw thread along an outer threaded region, wherein the implant body is sized for threaded rotation into bone for positioning of an intrabony portion of the outer threaded region within said jaw bone; said intrabony portion having a top, proximally facing surface of a proximal end of the implant body from which three cutaway surfaces extend downwardly towards an apical portion on a distal end of the implant body and extend outwards to a periphery of said implant body, said surfaces at overlapping axial position with said thread, a longitudinal axis of said body defined between said intrabony portion and said apical portion; wherein said three cutaway surfaces are arranged around the periphery of the implant body and spaced apart circumferentially, and each of said cutaway surfaces defines an outside cutaway volume, each of said volumes being positionable by rotation guided by said threaded region to face a portion of said jaw bone, to create a volume below bone level for filling with new bone growth; wherein said cutaway surfaces are flat or convex in a direction along said periphery; and wherein at least one of said three cutaway surfaces ends in a shoulder extending radially outward to the periphery of said implant body; and wherein said shoulder is located between said proximal and said distal end. ### Claim 2 (depends on 1) The dental implant according to claim 1, further comprising: a screw-receiving bore extending downwards from the top surface for coupling an abutment to the implant. ### Claim 3 (depends on 2) The dental implant according to claim 2, wherein said bore is eccentrically disposed from the longitudinal axis of the body. ### Claim 4 (depends on 3) The dental implant according to claim 3, wherein: at least one said three cutaway surfaces extends to a point not radially further from the longitudinal axis of said body than a radius of said eccentrically disposed bore. ### Claim 5 (depends on 2) The dental implant according to claim 2, wherein said screw-receiving bore is formed at an angle to the longitudinal axis of the body. ### Claim 6 (depends on 2) The dental implant according to claim 2, wherein: at least one of said three cutaway surfaces is at least as wide as a diameter of said screw-receiving bore. ### Claim 7 (depends on 2) The dental implant of claim 2, wherein at least one of said three cutaway surfaces extends longitudinally at least from said bone level to at least a threaded region of said screw-receiving bore. ### Claim 8 (depends on 2) The dental implant of claim 2, wherein at least one of said three cutaway surfaces extends longitudinally at least from said bone level beyond said screw-receiving bore. ### Claim 9 (depends on 1) The dental implant of claim 1, comprising a head region having microthreads or rings around a periphery thereof, and at least one of said three cutaway surfaces extends longitudinally at least from said bone level to beyond said microthreads or rings. ### Claim 10 (depends on 1) The dental implant according to claim 1, wherein at least one of said three cutaway surfaces is substantially parallel to said longitudinal axis. ### Claim 11 (depends on 1) The dental implant according to claim 1, wherein at least one of said three cutaway surfaces extends along said body to said apical portion. ### Claim 12 (depends on 1) The dental implant according to claim 1 wherein said three cutaway surfaces longitudinally extend from the top surface of said body, wherein said three cutaway surfaces are disposed equidistantly around the body. ### Claim 13 (depends on 1) The dental implant according to claim 1, wherein: said intrabony portion includes a body portion on the distal end of said implant body and a head portion on the proximal end of the implant body, said head portion integrally formed with said body portion; said head portion having a non- circular periphery; said body portion and said head portion having lengths such that a portion of said head portion is positioned below bone level in said jaw bone when said implant is implanted in a jaw bone bore sized to receive it; and wherein said non-circular periphery of said head portion is smaller than a periphery of the body portion. ### Claim 14 (depends on 1) The dental implant according to claim 1, wherein: said intrabony portion includes a body portion on the distal end of said implant body and a head portion on the proximal end of the implant body, said head portion integrally formed with said body portion; said body portion and said head portion are longitudinally sized such that a portion of said head portion is positioned below bone level in said jaw bone when said implant is implanted in a jaw bone bore sized to receive it; and said portion of said head portion comprises a portion of said three cutaway surfaces. ### Claim 15 (depends on 1) The dental implant according to claim 1, wherein: said three cutaway surfaces are flat extending along a width of said implant. ### Claim 16 (depends on 1) The dental implant of claim 1, wherein at least one of said three cutaway surfaces extends along and is oriented at a tapering angle to said longitudinal axis of the implant body. ### Claim 17 (depends on 1) The dental implant of claim 1, wherein said three cutaway surfaces are convex along said periphery. ### Claim 18 (depends on 1) The dental implant of claim 1, wherein said three cutaway surfaces extend to the top surface of said implant such that said top surface has a non-circular face with a perimeter defined by said cutaway surfaces. ### Claim 19 A method of encouraging bone growth in a jaw bone near a dental implant, comprising: selecting a dental implant having a longitudinal axis and having an intrabony portion having an outer screw thread, wherein said intrabony portion comprises three outer cutaway volumes spaced apart circumferentially at overlapping axial positions and arranged around a circumference of an implant body, wherein each of the three outer cutaway volumes extends from an intrabony portion top, proximally facing surface to at least a bone level of the dental implant while interrupting said outer screw thread and extends outwards to the circumference of said implant body, and wherein at least one of said three cutaway surfaces ends in a shoulder extending radially outward to the periphery of said implant body; and wherein said shoulder is located between said proximal and said distal end; and screwing the dental implant into a bore in said jaw bone, and axially positioning said dental implant while maintaining by rotation at least one of said three outer cutaway volumes adjacent to a thin portion of bone, by rotating in increments of a third of said circumference of said dental implant, wherein said thin portion comprises a portion of at least one from among the group consisting of a buccal plate and a mandibular ridge. ### Claim 20 (depends on 19) The method of claim 19, wherein said thin portion of bone comprises a critical area prone to bone resorption. ### Claim 21 (depends on 19) The method of claim 19, wherein: said screwing comprises orienting, during said screwing, the three outer cutaway volumes relative to the jaw bone such that said volumes are adapted to fill with bone thickness gained by said thin portion of bone; and said method further includes allowing new bone growth from said thin portion of bone into said volumes. ### Claim 22 (depends on 21) The method of claim 21, wherein said implant comprises a screw-receiving bore, and said orienting the volumes comprises positioning a center of said screw-receiving bore lingually relative to said bore in said jaw bone. ### Claim 23 (depends on 21) The method of claim 21, wherein said new bone growth is from the buccal plate. ### Claim 24 (depends on 21) The method of claim 21, wherein said new bone growth is from the mandibular ridge. ### Claim 25 (depends on 21) The method of claim 21, wherein said new bone growth is from a portion of bone adjacent to another bone implant. ### Claim 26 (depends on 19) The method of claim 19, wherein said dental implant comprises a screw-receiving bore, and at least one of said three outer cutaway volumes extends longitudinally at least from said bone level to at least a threaded region of said screw-receiving bore. ### Claim 27 (depends on 19) The method of claim 19, wherein said dental implant comprises a screw-receiving bore, and at least one of said three outer cutaway volumes extends longitudinally at least from said bone level beyond said screw-receiving bore. ### Claim 28 (depends on 19) The method of claim 19, wherein said dental implant comprises a head region having microthreads or rings around a periphery thereof, and at least one of said three outer cutaway volumes extends longitudinally at least from said bone level to beyond said microthreads or rings. ### Claim 29 (depends on 19) The method of claim 19, wherein said three outer cutaway volumes are equidistant around the implant body such that at least one of said three volumes flares towards said thin portion of bone. ### Claim 30 (depends on 19) The method of claim 19, wherein said positioning comprises maintaining a joining surface between two of said three outer cutaway volumes to face said thin portion of bone. ### Claim 31 (depends on 19) The method of claim 19, wherein said positioning comprises maintaining a joining surface between two of said three outer cutaway volumes to face the thin portion of bone and maintaining two of said volumes to face along a bony ridge and one of said volumes to face buccally or lingually. ### Claim 32 (depends on 19) The method of claim 19, wherein said positioning comprises positioning a convex portion of the implant to face said thin portion of bone. ### Claim 33 A dental implant for implantation in a jaw bone, comprising: an implant body having a screw thread along an outer threaded region, wherein the implant body is sized for threaded rotation into bone for positioning of an intrabony portion of the outer threaded region within said jaw bone; said intrabony portion having a top, proximally facing surface of the implant body from which three cutaway surfaces extend downwardly towards an apical portion on a distal side of the implant body and extend outwards to a periphery of said implant body, said surfaces at overlapping axial position with said thread, a longitudinal axis of said body defined between said intrabony portion and said apical portion; wherein said three cutaway surfaces are arranged around a circumference of the implant body and spaced apart circumferentially, and each of said cutaway surfaces defines an outside cutaway volume, each of said volumes being positionable by rotation guided by said threaded region to face a portion of said jaw bone, to create a volume below bone level for filling with new bone growth; and wherein at least one of said three cutaway surfaces ends in a shoulder extending radially outward to the periphery of said implant body; and wherein said shoulder is located between said proximal and said distal end.