WO1999047064A1 - Orthodontisches befestigungselement - Google Patents
Orthodontisches befestigungselement Download PDFInfo
- Publication number
- WO1999047064A1 WO1999047064A1 PCT/EP1999/001814 EP9901814W WO9947064A1 WO 1999047064 A1 WO1999047064 A1 WO 1999047064A1 EP 9901814 W EP9901814 W EP 9901814W WO 9947064 A1 WO9947064 A1 WO 9947064A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cover
- fastening element
- element according
- base
- holder
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
- A61C7/125—Mouth tissue protecting means, e.g. bracket caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
Definitions
- the present invention relates to an orthodontic fastening element for orthodontic therapy, which is also referred to as a bracket.
- a large number of adolescents and adults are treated orthodontically to correct existing dysgnathias.
- Fixed orthodontic appliances are used to achieve the treatment goal as quickly and as fully as possible and also to be more independent of the cooperation of the patients and to realize physical tooth movements.
- brackets and bands are a much more difficult oral hygiene (decalcification in the area of the brackets) as well as a significantly reduced wearing comfort, which is caused by the brackets previously used.
- Food residues remain around the brackets with the consequence of bacterial colonization (plaquerases and subsequent caries formation), whereby the acids formed cause decalcification of the hard tooth substance, which in turn leads to the destruction of the hard tooth substance.
- bacterial colonization and decomposing food residues cause bad breath, the presence of which is very unpleasant for the patient wearing the apparatus.
- conventional brackets have proven to be disadvantageous in that they lack They are comfortable to wear, can cause injuries to the lips, tongue and cheeks and have a negative impact on the lingual technique.
- an orthodontic fastening element with a base and at least one holder arranged on the base, a cover being fastened on the base and covering the base and the holder.
- a preferably hood-like cover is placed on the entire bracket, so that the angular parts of the holder previously used are covered.
- the necessary parts of the holder for example slots, bracket wings, hooks and the like, are hidden under the cover, so that lips, cheeks or tongue are not injured or irritated by these elements.
- the self-cleaning mechanism of the teeth is also significantly less affected by a smooth and curved design of the cover.
- Another advantage of the complete covering of the fastening element according to the invention lies in the lower susceptibility to bacterial contamination.
- the cover according to the invention covers all angles, edges and niches of the fastening element or its holder relative to the oral cavity, so that no food residues can settle here and bacterial infestation is significantly reduced.
- the contour of the edge of the cover corresponds to the outer contour of the base of the fastening element.
- the entire bracket is essentially completely covered by the cover, so that the wearing comfort is optimized.
- the cover is preferably hood-shaped and has no disturbing corners or edges.
- a convex curvature with the largest possible radii of curvature is preferred, since such a shape is felt to be the least disturbing.
- a constantly curved surface minimizes both bacterial infestation and irritation of the oral cavity.
- the cover is preferably closed except for two openings for the passage of an arch, the openings preferably being adapted to the cross section of the arch. This also ensures in this embodiment that no food residues can penetrate under the cover in the region of the openings through which the sheet is guided.
- the cover can advantageously be slotted in the area of the openings. This allows the cover, which is preferably made of an elastic material is produced, open briefly in the area of the slots so that the cover can be placed on the base, the sheet being able to emerge from the cover through the openings provided after being placed on it. After placing the cover closes due to its elastic properties, so that the bracket is completely protected in the direction of the mouth.
- the base has on its outer circumference a circumferential shoulder on which the cover can be placed.
- the transition between the outer surface of the cover and the tooth surface can be designed without edges, while at the same time ensuring a good seal between the base and the cover.
- the base preferably has rounded corners or is essentially oval or elliptical. Such a shape also avoids distracting corners or edges in the area of the base, which further increases the wearing comfort.
- the cover can be attached to the base in a foldable manner or can be placed on the base, for example by a clamp fit. It is also possible to attach the cover by gluing.
- one or more registration aids can also be arranged within the cover, for example on the holder, which are used as reference points.
- one or more hooks are arranged on the fastening element and are likewise protected by the cover.
- these hooks can be folded out so that they protrude beyond the outer contour of the base and are easily accessible there.
- the hooks also have a rounded and therefore non-distracting outer contour. After the desired movement of the teeth, the hooks can be moved back so that the cover can be placed on the base.
- an additional opening in the cover for the passage of the hook can be provided, for example, by a stamped part that is broken out only when necessary. It can also be closed again, for example by articulation with the aid of a film hinge or the like. In this case the hook can be used without having to remove the cover
- a connecting mechanism between the palate bar and bracket is provided according to a further embodiment.
- a slot is provided within the bracket, which is also referred to as a slot and which serves to receive the arch.
- This slot has a reversible, individually usable retention mechanism for the arch, so that a wide variety of orthodontic anchoring tasks can be solved.
- at least the outer surface of the cover has self-cleaning properties, which has not previously been used for brackets in dentistry. Self-cleaning materials are known in principle and, using the so-called "lotus effect", have a self-cleaning effect which is achieved by a surface with a predetermined roughness.
- the self-cleaning properties can preferably be achieved by a non-stick coating, for example made of a sol-gel material.
- Sol-gel materials of this type can be produced by a wet chemical process in which, starting from a liquid colloid-disperse system, a reaction is triggered which leads to the formation of a three-dimensional network.
- silicic acid esters or metal alkoxides can be used as starting compounds, which react by hydrolysis and condensation to form an inorganic network. In this way, repellent surfaces can be produced which have the desired self-cleaning properties.
- the entire fastening element is preferably provided with a non-stick coating, the underside of the base, which is attached to a tooth, not having to be provided with such a coating. 7
- storage locations for bacteriostatic and / or bactericidal substances are provided on the fastening element and within the cover. Gels or pastes with a bactericidal or bacteriostatic effect can be introduced into these storage locations, for example cavities. Silver-fluorine compounds, phenol compounds and the like come into consideration as bactericidal substances.
- the present invention relates not only to an orthodontic fastening element, but also to the cover described, with which conventional brackets can be retrofitted.
- Figure 1 is a perspective view of a fastener with associated cover.
- FIG. 2 shows the fastening element from FIG. 1 with the cover attached
- Fig. 3 shows the fastener of Fig. 1 without a cover and with the hook pulled out.
- the orthodontic fastening element shown in the figures also called a bracket, has a base 1 on which a holder for one 8th
- the holder has an insertable, reversible arch retention mechanism 3, 4, so that a wide variety of orthodontic anchoring tasks can be solved.
- the base 1 is essentially rectangular, but has very rounded corners. On the two narrow sides of the base, an inner rotating wing 5 for the derotation of teeth is attached to the base. On the individual elements 3, 4 of the sheet retention mechanism there is also a registration aid 7, which enables measurement with a camera and a computer system. Furthermore, a fold-out hook 8 is provided on the right-hand element 4 of the sheet retaining mechanism in FIG. 1, which hook can be folded outward in order to move teeth in a certain direction.
- Fig. 3 shows this hook 8 in the folded out state. In this position, the hook can be engaged to achieve a desired displacement of the teeth. As FIG. 3 also shows, the hook 8 projects with its spherical end beyond the outer contour of the base 1. In the folded or plugged-in state, the end of the hook 8 is located within the outer contour of the base 1 (cf. FIG. 1).
- a slot is formed by the sheet retention mechanism 3, 4, which serves to receive the sheet (not shown). The bow is inserted into the slot and locked there.
- cover 2 provided according to the invention, which can be fastened on the base 1.
- This cover 2 is made of plastic provides and hood-like design without annoying corners or edges.
- the outer surface of the cover 2 is continuously convex, the contour of the edge of the cover 2 corresponding to the outer contour of the base 1.
- the cover 2 is plugged onto the base 1 and in this state completely covers the base 1 and the holder 3, 4 arranged thereon, as well as the rotating wings 5 and the folded hook 8.
- the space that is is enclosed between the base 1 and the cover 2, except for two openings 10 (only one opening can be seen in FIGS. 1 and 2), which serve for the passage of the arch.
- the two mutually opposite openings 10 are arranged approximately centrally on the two narrow sides of the cover 2, the cross section of the openings 10 being matched to the cross section of the arch.
- the cover 2 is slotted in the region of the openings 10.
- a slot 12 extends in a straight line from the opening 10 at right angles and to the outer edge of the cover 2. Because of the elastic design of the plastic cover 2, the slot 12 is normally closed. However, this can be opened when the cover 2 is put on by slightly pushing apart the long sides of the cover, so that the sheet can be guided through the slot 12 into the opening 10. Then the slot 12 closes again, whereby the cover 2 is held by the arch on the base 1 at the same time. 10
- the base 1 has on its outer circumference a circumferential shoulder 14 on which the outer edge of the cover 2 is placed.
- the transition between the outer surface of the cover 2 and the tooth surface is edge-free, that is to say the outer surface of the cover 2 merges continuously and continuously into the outer end face of the shoulder 14.
- All elements of the fastening element according to the invention are provided with a non-stick coating which has self-cleaning properties. Furthermore, 2 storage locations for bacteriostatic and / or bactericidal substances are provided on the fastening element and within the cover. Such storage locations (not shown) can be designed, for example, in the form of depressions or cavities.
- the cover it is also possible for the cover to completely cover the base at its outer edge.
- the present invention is not limited to a fastening element, but also comprises a cover which is suitable for retrofitting conventional brackets.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99915662A EP0984733A1 (de) | 1998-03-19 | 1999-03-18 | Orthodontisches befestigungselement |
US09/424,102 US6220857B1 (en) | 1998-03-19 | 1999-03-18 | Orthodontic fastening element |
JP54658599A JP2001526578A (ja) | 1998-03-19 | 1999-03-18 | 歯科矯正用固定部材 |
AU34152/99A AU3415299A (en) | 1998-03-19 | 1999-03-18 | Orthodontic fastening element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19812184A DE19812184A1 (de) | 1998-03-19 | 1998-03-19 | Orthodontisches Befestigungselement |
DE19812184.9 | 1998-03-19 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/840,770 Continuation US6347939B2 (en) | 1998-03-19 | 2001-04-23 | Self-ligating orthodontic bracket |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999047064A1 true WO1999047064A1 (de) | 1999-09-23 |
Family
ID=7861619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/001814 WO1999047064A1 (de) | 1998-03-19 | 1999-03-18 | Orthodontisches befestigungselement |
Country Status (7)
Country | Link |
---|---|
US (2) | US6220857B1 (de) |
EP (1) | EP0984733A1 (de) |
JP (1) | JP2001526578A (de) |
AU (1) | AU3415299A (de) |
DE (1) | DE19812184A1 (de) |
RU (1) | RU99127304A (de) |
WO (1) | WO1999047064A1 (de) |
Cited By (1)
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DE102011116646B3 (de) * | 2011-10-21 | 2012-11-29 | Heliocos Gmbh | Kieferorthopädisches Regulierungssystem |
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-
1998
- 1998-03-19 DE DE19812184A patent/DE19812184A1/de not_active Withdrawn
-
1999
- 1999-03-18 EP EP99915662A patent/EP0984733A1/de not_active Withdrawn
- 1999-03-18 RU RU99127304/14A patent/RU99127304A/ru not_active Application Discontinuation
- 1999-03-18 JP JP54658599A patent/JP2001526578A/ja active Pending
- 1999-03-18 AU AU34152/99A patent/AU3415299A/en not_active Abandoned
- 1999-03-18 US US09/424,102 patent/US6220857B1/en not_active Expired - Fee Related
- 1999-03-18 WO PCT/EP1999/001814 patent/WO1999047064A1/de not_active Application Discontinuation
-
2001
- 2001-04-23 US US09/840,770 patent/US6347939B2/en not_active Expired - Fee Related
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102011116646B3 (de) * | 2011-10-21 | 2012-11-29 | Heliocos Gmbh | Kieferorthopädisches Regulierungssystem |
Also Published As
Publication number | Publication date |
---|---|
US20010029007A1 (en) | 2001-10-11 |
US6347939B2 (en) | 2002-02-19 |
US6220857B1 (en) | 2001-04-24 |
JP2001526578A (ja) | 2001-12-18 |
RU99127304A (ru) | 2001-09-20 |
EP0984733A1 (de) | 2000-03-15 |
AU3415299A (en) | 1999-10-11 |
DE19812184A1 (de) | 1999-09-23 |
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