Adjustable orthodontic bracket positioning device and method thereof

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.

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.