WO2003011162A2 - Orbital dental polishing device - Google Patents
Orbital dental polishing device Download PDFInfo
- Publication number
- WO2003011162A2 WO2003011162A2 PCT/CA2002/001202 CA0201202W WO03011162A2 WO 2003011162 A2 WO2003011162 A2 WO 2003011162A2 CA 0201202 W CA0201202 W CA 0201202W WO 03011162 A2 WO03011162 A2 WO 03011162A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brush
- polishing
- supporting member
- motor
- working surface
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
- A61C3/06—Tooth grinding or polishing discs; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
Definitions
- the invention relates to the field of tools for polishing crowns, bridges, dental appliances such as dentures and the like, or jewellery, and more particularly a device which polishes crowns, bridges, dental appliances such as dentures and the like, or jewellery, using an orbital motion.
- the present invention provides a device for polishing a workpiece having a convoluted surface comprising: a brush-supporting member; an electric motor for imparting an orbital motion to the brush-supporting member; and a polishing brush comprising a curved working surface mounted on the brush-supporting member.
- the brush has a hemispherical face.
- the hemispherical face preferably faces vertically downwardly.
- the device may have a horizontal base, and may comprise a vertical motor support.
- the motor may be mounted within a motor housing on said vertical motor support.
- the brush-supporting plate extends downwardly from said motor housing and the device preferably has a plurality of brushes mounted on said brush-supporting plate.
- Fig. 1 is a perspective view of the surface of a crown
- FIG. 2 is a perspective view of the polishing device according to the invention.
- FIG. 3 is a side view of the invention
- Fig. 4 is a detail of the polishing brushes of the invention with the brush housing removed for ease of illustration;
- FIG. 5 is a view with the housing removed to better illustrate the orbital motor
- FIG. 6 is an enlarged perspective view of a brush head
- Fig. 7 is a partial sectional view of the brush head shown in Fig. 6.
- a crown 10 which may be of a precious metal such as gold alloy, or porcelain or acrylic. It has a convoluted upper or functional surface 12 having a marginal ridge 14, buccal cusp 16, lingal cusp 18, triangle ridges 20, groove 22 and pit 24. These complex features of the functional surface are referred to as the anatomy.
- polishing device 30 of the invention is shown in Fig. 2 through
- the brush has a base 32, source of electrical power 34, switch 36, vertical post 38, and machine housing 40. Attached to machine housing 40 is a brush housing 42. Extending downwardly from brush housing 42 is at least one, and preferably three or more brush heads 44, 46, 48. Brush heads 44, 46, 48 are formed of polishing brush filaments such as those used to form existing lathe polishing brushes. Each brush head has a different profile according to the different desired tasks. Preferably the heads of the brushes have curved, generally hemispherical, faces with different radii to allow polishing of different surfaces. Also, providing multiple brush heads allows the use of a different coarseness of polishing compound on each brush head, from coarse to fine. The polishing compound is poured into openings 68 of each container 60, which are supported by support 64, and then reaches the brush through a tube 62 which connects each container 60 to the brush through hole 70 (Fig. 6 and 7) of each brush head.
- Brushes 44, 46, 48 are mounted on brush plate 50 (Fig. 5) which extends downwardly from and is secured to plate 52 of orbital motor 54. Brush plate 50 extends down a sufficient depth so that a technician working at the device can see the surface of the workpiece.
- a suitable motor 54 is from a Random Orbit Sander or Finishing Sander such as Makita Finishing Sander model BO4552K. This is a sander in which a point on the sanding surface randomly orbits in a plane about a fixed center point Thus a point on the surface of the sander (such as the brush head in this case) follows a continuous random motion in a closed path such as a circle or an ellipse in a path around a center point in that plane.
- Such orbital motion like the motion of a planet around the sun, is distinguished from rotational motion, such as the spinning of a planet on its own axis.
- the switch 36 turns the motor on and off without speed variability.
- a motor having a variable speed may also be used, although a variable speed is normally not required.
- the technician having a gold crown to polish turns on the orbital motor 54 which imparts to brush heads 44, 46, 48 a rapid orbital motion, much as in an orbital sander.
- the technician selects the brush with the appropriate radius and/or polishing compound and contacts the surface of the crown, thereby polishing it.
- the anatomy of the crown is not thereby reduced.
- the invention has been described for purposes of polishing crowns, bridges and dental appliances such as dentures, the invention is useful for polishing any non-planar surfaces and particularly non-planar surfaces with complex or convoluted curvatures, including jewellery, small die-made parts and computer chips.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002355617A AU2002355617A1 (en) | 2001-08-01 | 2002-07-31 | Orbital dental polishing device |
EP02750746A EP1414617A2 (en) | 2001-08-01 | 2002-07-31 | Orbital dental polishing device |
CA002456001A CA2456001A1 (en) | 2001-08-01 | 2002-07-31 | Orbital dental polishing device |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/920,046 | 2001-08-01 | ||
US09/920,046 US6679768B2 (en) | 2001-08-01 | 2001-08-01 | Orbital dental polishing device |
JP2001-307352 | 2001-10-03 | ||
JP2001307352A JP2003048145A (en) | 2001-08-01 | 2001-10-03 | Orbital dental grinding device |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003011162A2 true WO2003011162A2 (en) | 2003-02-13 |
WO2003011162A3 WO2003011162A3 (en) | 2003-06-26 |
Family
ID=26623644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2002/001202 WO2003011162A2 (en) | 2001-08-01 | 2002-07-31 | Orbital dental polishing device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1414617A2 (en) |
CN (1) | CN1561279A (en) |
CA (1) | CA2456001A1 (en) |
WO (1) | WO2003011162A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7302726B2 (en) | 2003-05-23 | 2007-12-04 | Braun Gmbh | Toothbrushes |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6876297B2 (en) * | 2017-05-16 | 2021-05-26 | 株式会社不二製作所 | How to polish artificial teeth |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2859627A (en) * | 1954-02-16 | 1958-11-11 | Jr John Calvin Gallop | Multiple purpose power tool |
DE19510900A1 (en) * | 1995-03-24 | 1996-10-02 | Wmf Wuerttemberg Metallwaren | Method for vibratory grinding interior of hollow body, esp. jug |
US6171175B1 (en) * | 1998-12-11 | 2001-01-09 | Ford Global Technologies, Inc. | Method of polishing uniform or free-form metal surfaces |
-
2002
- 2002-07-31 WO PCT/CA2002/001202 patent/WO2003011162A2/en not_active Application Discontinuation
- 2002-07-31 EP EP02750746A patent/EP1414617A2/en not_active Withdrawn
- 2002-07-31 CA CA002456001A patent/CA2456001A1/en not_active Abandoned
- 2002-07-31 CN CN 02819384 patent/CN1561279A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2859627A (en) * | 1954-02-16 | 1958-11-11 | Jr John Calvin Gallop | Multiple purpose power tool |
DE19510900A1 (en) * | 1995-03-24 | 1996-10-02 | Wmf Wuerttemberg Metallwaren | Method for vibratory grinding interior of hollow body, esp. jug |
US6171175B1 (en) * | 1998-12-11 | 2001-01-09 | Ford Global Technologies, Inc. | Method of polishing uniform or free-form metal surfaces |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7302726B2 (en) | 2003-05-23 | 2007-12-04 | Braun Gmbh | Toothbrushes |
Also Published As
Publication number | Publication date |
---|---|
WO2003011162A3 (en) | 2003-06-26 |
CA2456001A1 (en) | 2003-02-13 |
EP1414617A2 (en) | 2004-05-06 |
CN1561279A (en) | 2005-01-05 |
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