# US 2011/0300500 A1 · Adjustable orthodontic bracket positioning device and method thereof

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- Number: US 2011/0300500 A1
- Document ID: US20110300500A1
- Status: Published application
- Kind: A1
- Application number: 13/201,463
- Filed: 2010-02-10
- Published: 2011-12-08
- Earliest claimed: 2009-03-12
- Assignees: Qingdao Shinan Huakang Dental Clinic
- Inventors: Zhuangcun Gao; Xiangyu Gao
- Web page: https://patentgrep.com/patent/US20110300500A1

## CPC

- A61C 19/04: Measuring instruments specially adapted for dentistry ({A61C5/44 takes precedence; testing vitality of teeth A61B5/0534;} radiation diagnosis specially adapted for dentistry A61B6/51)
- A61C 7/02: Tools for manipulating or working with an orthodontic appliance {(tools for placement of brackets A61C7/146; instruments for attaching elastic bands A61C7/306)}
- A61C 7/14: Brackets (A61C7/28 takes precedence); Fixing brackets to teeth
- A61C 7/146: {Positioning or placement of brackets; Tools therefor}
- 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

An adjustable orthodontic bracket-positioning device includes an adjustable bracket-positioning jip, a positioning vernier and a dental crown vernier. First, using the crown vernier to measure the crown height value of patients' tooth, and labeling the measured center height value of clinical dental crown on the positioning vernier, correctly position the adjustable bracket-positioning jip in the groove shape base of the positioning vernier, and finally use the adjustable bracket-positioning jip to bond MBT bracket.

## Claims

### Claim at position 1

1-3. (canceled)

### Claim 4

An adjustable orthodontic bracket-positioning device, comprising an adjustable bracket-positioning jip (38);
a positioning vernier (41); and
a dental crown vernier (42),
wherein the adjustable bracket-positioning jip (38) comprises
a sliding base (1) with a slideway (24);
a height adjustment device (40) comprised of a slide block (14) fixed on the sliding base (1), and
an angle adjustment device (39) employing a bracket fixed on the sliding base;
the sliding base (1) and a slide block (14) are connected via internal screw threads (25) in a threaded rod (2) and the sliding base (1), so that the position relation between the two can be adjusted;
a driving wheel (21) is set in a driving wheel groove (22) near a height adjustment button (15) at one end of the threaded rod (2), the driving wheel pushing the slide block to move back and forth along the sliding base;
the angle adjustment device (39) comprises a shaft (8) going through a shaft sleeve (16), with a positioning needle knife (4) at one end;
a stop sheet (10) is fixed on a stop pin against the shaft sleeve (16);
a dial (12) is fixed at the other end of the shaft sleeve (16);
an angle needle (11) is fixed at the shaft (8) at the area against the dial (12);
an angle adjustment button (13) is fixed at the other end of the shaft (8);
the upper of the shaft sleeve (6) is fixed in the middle of the horizontal part of a stand (17);
ends of the two arms of a V-shaped directrix stand (7) are respectively fixed on the stand (17);
a directrix (18) goes through a directrix hole (6) at the positioning needle knife (4) and a directrix aperture track (3) on the slide block (14);
one end of the directrix (18) is fixed on the top of the V-shaped directrix stand (7), and the other end is fixed on the middle part of the front end surface of the sliding base (1) in order to replace a virtual long axis, as the reference line of positioning the angle of a MBT bracket;
the dental crown vernier (42), as an initial reference of measuring the height of a clinical dental crown, comprises a main ruler (33) with a rectangular cross-section, which goes through a secondary ruler (37) with a groove structure;
the main ruler is provided with a reference stand (34) at the place even with the zero graduation line of the secondary ruler (37);
the secondary ruler (37) is provided with a bolt (36) for positioning the main ruler (33);
the positioning vernier (41) comprises a main ruler (27) and a secondary ruler (26), both with graduations and sliding up and down in relation with each other;
the lower part of the secondary vernier (26) is fixed on a base stand (29) of a groove shape base (31), a stop block being set in the groove shape base.

### Claim 5 (depends on 4)

The adjustable orthodontic bracket-positioning device set forth in claim 4, wherein the positioning needle knife (4) uses magnetic substance made of permanent magnetic material.

### Claim 6 (depends on 4)

The adjustable orthodontic bracket-positioning device set forth in claim 4, wherein the sideway (24) and a sliding track (24) of the slide block (14) are the structure of a dovetail groove matching a dove tenon.

### Claim 7 (depends on 4)

A method of using then adjustable orthodontic bracket-positioning device set forth in claim 4, comprising:
using the dental crown vernier (42) to measure the height value of a clinical dental crown;
labeling the measured center height value of clinical dental crown on the positioning vernier (41);
positioning correctly the adjustable bracket-positioning jip in the groove shape base (29) of the positioning vernier (41);
twisting the height adjustment button (15) in order to make the reference stand (19) of the adjustable bracket-positioning jip (38) rise to be in contact with the reference surface (30) of the positioning vernier (41); at this time, the distance of the needle (5) at the center of the groove and the reference stand (19) is equivalent to the measured center height value of clinical crown, and the labeled center height value of clinical dental crown on the positioning vernier is shifted to the adjustable bracket-positioning jip;
using the adjustable bracket-positioning jip to bond MBT bracket.

### Claim 8

An adjustable orthodontic bracket-positioning device, comprising an adjustable bracket-positioning jip (38); and
a positioning vernier (41),
wherein the adjustable bracket-positioning jip (38) comprises
a sliding base (1) with a slideway (24);
a height adjustment device (40) comprised of a slide block (14) fixed on the sliding base (1), and
an angle adjustment device (39) employing a stand fixed on the sliding base;
the sliding base (1) and a slide block (14) are connected via internal screw threads (25) in a threaded rod (2) and the sliding base (1), so that the position relation between the two can be adjusted;
a driving wheel (21) is set in a driving wheel groove (22) near a height adjustment button (15) at one end of the threaded rod (2), the driving wheel pushing the slide block to move back and forth along the sliding base;
the angle adjustment device (39) comprises a shaft (8) going through a shaft sleeve (16), with a positioning needle knife (4) at one end;
a stop sheet (10) is fixed on a stop pin against the shaft sleeve (16);
a dial (12) is fixed at the other end of the shaft sleeve (16);
an angle needle (11) is fixed at the shaft (8) at the area against the dial (12);
an angle adjustment button (13) is fixed at the other end of the shaft (8);
the upper of the shaft sleeve (6) is fixed in the middle of the horizontal part of a stand (17);
ends of the two arms of a V-shaped directrix stand (7) are respectively fixed on the stand (17);
a directrix (18) goes through a directrix hole (6) at the positioning needle knife (4) and a directrix aperture track (3) on the slide block (14);
one end of the directrix (18) is fixed on the top of the V-shaped directrix stand (7), and the other end is fixed on the middle part of the front end surface of the sliding base (1) in order to replace a virtual long axis, as the reference line of positioning the angle of a MBT bracket;
the positioning vernier (41) comprises a dental crown vernier (42), a groove shape base (29) and a base stand (31);
the vernier part comprises a main ruler (33) and a secondary ruler (37), both with graduations and sliding up and down in relation with each other;
the lower part of the secondary vernier (26) is fixed on a base stand (31) of a groove shape base (29), a stop block being set in the groove shape base.

### Claim 9 (depends on 8)

The adjustable orthodontic bracket-positioning device set forth in claim 8, wherein the positioning needle knife (4) uses magnetic substance made of permanent magnetic material.

### Claim 10 (depends on 8)

The adjustable orthodontic bracket-positioning device set forth in claim 8, wherein the sideway (24) and a sliding track (24) of the slide block (14) are the structure of a dovetail groove matching a dove tenon.