# US 2014/0193771 A1 · Surgical guide system for dental implantology and method for making the same

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- Number: US 2014/0193771 A1
- Document ID: US20140193771A1
- Status: Published application
- Kind: A1
- Application number: 14/128,806
- Filed: 2012-06-22
- Published: 2014-07-10
- Earliest claimed: 2011-07-01
- Assignees: Leone S.P.A.
- Inventors: Maurizio Dolfi; Gabriele Scommegna
- Web page: https://patentgrep.com/patent/US20140193771A1

## CPC

- A61C 1/084: {of implanting tools}
- A61C 1/085: {for multiple drills, for simultaneous drilling}
- A61C 3/02: Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
- A61C 8/0089: {Implanting tools or instruments}
- 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

Surgical guide system for dental implantology, comprising a plate (10) provided with one or more guide sleeves (2) delimiting corresponding through holes whose axes are oriented according to predetermined directions, and a drill (4) for osteotomy having a spindle that can be connected to a handpiece or similar tool and a drilling head or drilling portion (41), the drill (4) being apt to be associated to each of the guide sleeves (2) during an osteotomy step, the guide sleeves (2) having an occlusal side (2D) and a gingival side (2G). The diameter (d41) of the drilling head or portion (41) of the drill (4) is larger than the inner diameter (d2) of said one or more guide sleeves (2) while the spindle of the same drill (4) is of smaller diameter, such that the association of the drill (4) to any of the guide sleeves (2) can be performed only by inserting its spindle through the gingival side of the sleeves, and when the drill (4) is associated with any of the sleeves (2), the drilling head (41) of the drill (4) is protruding from the gingival side (2G) thereof. The surgical guide has a void (100) in which the drilling head (41) of the drill (4) can be accommodated.

## Claims

### Claim 1

A surgical guide system for dental implantology, comprising:
a plate provided with one or more guide sleeves delimiting corresponding through holes whose axes are oriented according to predetermined directions, and a drill for osteotomy having a spindle that can be connected to a handpiece or similar tool and a drilling head or drilling portion, the drill being apt to be associated to each of the one or more guide sleeves during an osteotomy step, the one or more guide sleeves having an occlusal side and a gingival side, wherein a diameter of the drilling head or drilling portion of the drill is larger than an inner diameter of said one or more guide sleeves while the spindle of the drill is of smaller diameter, such that association of the drill to any of the one or more guide sleeves can be performed only by inserting the spindle through the gingival side of the one or more guide sleeves, and when the drill is associated with any of the one or more guide sleeves, the drilling head of the drill is protruding from the gingival side thereof, the surgical guide having a void in which the drilling head of the drill can be accommodated.

### Claim 2 (depends on 1)

A system according to claim 1, wherein each of said one or more guide sleeves is centrally and longitudinally crossed by a hole of a predetermined diameter, said hole exhibiting a plurality of lateral sectors communicating with said hole.

### Claim 3 (depends on 2)

A system according to claim 2, wherein said lateral sectors are identical to each other.

### Claim 4 (depends on 2)

A system according to claim 2, wherein said lateral sectors are three in number.

### Claim 5 (depends on 2)

A system according to claim 2, wherein each of said one or more guide sleeves has a tubular body of a predetermined diameter, with a collar whose diameter is greater than the predetermined diameter of the tubular body.

### Claim 6

A method for making a guide surgical system for dental implantology, the method comprising:
producing a plate provided with one or more guide sleeves delimiting corresponding through holes whose axes are oriented according to predetermined directions, and producing a three-dimensional model of anatomical structures that underlie a dental arch or part of a dental arch by means of electronic processing of diagnostic images, in which said three-dimensional model exhibits seats or holes oriented according to a given angle, in each of said seats or holes being inserted a simil-fixture or laboratory-implant, wherein, for making the plate with the one or more guide sleeves, a spacer is placed on each simil-fixture or laboratory-implant, with the spacer provided with a shank inserted into a cavity of the simil-fixture or laboratory-implant, a cylindrical middle part whose lower base for contacting an upper base of the simil-fixture or laboratory-implant, and a cylindrical upper part, with a diameter less than a diameter of the cylindrical middle part, having a threaded stem screwed in said cylindrical middle part, in which a height of said cylindrical middle part is greater than a height of a drilling head of a drill for osteotomy, then a guide sleeve is placed on the cylindrical upper part of said spacer and said plate is made of self-curing resin such that the plate incorporates the one or more guide sleeves placed on the cylindrical upper part of the spacer, and, when curing of the resin is completed, said upper cylindrical part is unscrewed from said cylindrical middle part and extracted through the one or more guide sleeves.

### Claim 7 (depends on 6)

A method according to claim 6, wherein said height of said cylindrical middle part is equal to 5 mm. and said height of said drilling head of said drill is less than 5 mm.

### Claim 8 (depends on 3)

A system according to claim 3, wherein said lateral sectors are three in number.
