# US 8,770,974 B2 · Set of dental drills

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- Number: US 8,770,974 B2
- Document ID: US8770974B2
- Status: Granted
- Kind: B2
- Application number: 12/637,000
- Filed: 2009-12-14
- Published: 2010-06-17
- Granted: 2014-07-08
- Earliest claimed: 2008-12-15
- Assignees: Straumann Holding AG
- Applicants: Edmund Suter; Steffen Kühne; Patrick Streff
- Inventors: Edmund Suter; Steffen Kühne; Patrick Streff
- Web page: https://patentgrep.com/patent/US8770974B2

## CPC

- A61B 17/1673: {for the jaw}
- A61C 8/0089: {Implanting tools or instruments}
- A61C 1/084: {of implanting tools}
- A61B 2090/034: {abutting on parts of the device itself}
- A61C 3/02: Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- 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

Set of dental drills having two or more dental drills (10, 10′), each of dental drills (10, 10′) having a cutting portion (20, 20′) that has an end-face drilling end (22, 22′) and a shank portion (30, 30′) that has a receiving region (32, 32′) intended to be received in a drill holding device. The shank portions (30, 30′) of the dental drills each have a substantially circular-cylindrical guide region (40, 40′) for guiding the dental drills, the guide regions (40, 40′) of the two or more dental drills being of the same diameter.

## Claims

### Claim 1

A set of dental drills comprising:
two or more dental drills, and a drill guide having an inner diameter and a lateral slot, each of the dental drills comprising
a cutting portion that has an end-face drilling end at one end of the dental drill, and
a shank portion that has
a receiving region at an opposing end of the dental drill, the receiving region configured to be received in a drill holding device,
a substantially circular-cylindrical guide region having a diameter that is matched to the inner diameter of the drill guide; the guide region configured to guide the dental drill within the matching inner diameter of the drill guide during a drilling process, and
an insertion region configured to laterally insert the dental drill into the lateral slot of the drill guide and secure the guide region of the dental drill within the inner diameter of the drill guide, wherein the lateral slot of the drill guide is at least as broad as the insertion region; and wherein
the guide region has a wider diameter than the receiving region and the insertion region,
the guide regions of the two or more dental drills have the same diameter, and
a maximum diameter of the insertion region is smaller than a maximum diameter of the guide region and a maximum diameter of the cutting portion of the dental drill.

### Claim 2 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the guide regions of all the dental drills are of the same height.

### Claim 3 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the guide region of each dental drill has a diameter of 2.6 to 3.0 mm.

### Claim 4 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the guide region of each dental drill has a diameter of 2.8 mm.

### Claim 5 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the guide region of each dental drill has a length of about 4 to 6 mm.

### Claim 6 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the shank portion of each dental drill has a drilling stop between the receiving region and guide region configured to define a maximum drilling depth and having a greater diameter than the guide region.

### Claim 7 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the shank portion of each dental drill has a groove or a bead for fastening a drilling stop.

### Claim 8 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the insertion region has a diameter of 1.2 to 2.2 mm.

### Claim 9 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the insertion region has a diameter of 1.7 mm.

### Claim 10 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the set comprises at least one profile drill.

### Claim 11 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the set comprises at least one threading tap drill.

### Claim 12 (depends on 1)

The set of dental drills as claimed in claim 1, wherein the set comprises at least one milling cutter, pilot drill, profile drill, spiral drill and threading tap drill.

### Claim 13 (depends on 1)

The set of dental drills as claimed in claim 1, wherein not all cutting portions of the dental drills are of the same diameter.

### Claim 14 (depends on 1)

The set of dental drills as claimed in claim 1, further comprises a drilling stop.