EP0625888A1 - Arc orthodontique d'expansion palatale en ni-ti - Google Patents

Arc orthodontique d'expansion palatale en ni-ti

Info

Publication number
EP0625888A1
EP0625888A1 EP93900719A EP93900719A EP0625888A1 EP 0625888 A1 EP0625888 A1 EP 0625888A1 EP 93900719 A EP93900719 A EP 93900719A EP 93900719 A EP93900719 A EP 93900719A EP 0625888 A1 EP0625888 A1 EP 0625888A1
Authority
EP
European Patent Office
Prior art keywords
sheath
appliance
archwire
arch
teeth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP93900719A
Other languages
German (de)
English (en)
Other versions
EP0625888A4 (fr
Inventor
Wendell V. Arndt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0625888A1 publication Critical patent/EP0625888A1/fr
Publication of EP0625888A4 publication Critical patent/EP0625888A4/fr
Withdrawn legal-status Critical Current

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
    • A61C7/28—Securing arch wire to bracket
    • A61C7/282—Buccal tubes
    • 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
    • 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
    • A61C7/10—Devices having means to apply outwardly directed force, e.g. expanders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C2201/00—Material properties
    • A61C2201/007—Material properties using shape memory effect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
    • A61F2210/0019—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol operated at only one temperature whilst inside or touching the human body, e.g. constrained in a non-operative shape during surgery, another temperature only occurring before the operation

Definitions

  • Nickel-titanium alloy metals offe unique physical characteristics. Of particular interest in the field of orthodontics is the property of conformation or shape memory of the metal. That is, the alloy presents temperature dependent flexibility properties and strength properties which can be utilized to particular advantage in orthodontic appliances.
  • Such nickel-titanium alloys present two types of physical states, the transition between which is temperature activated. The particular temperature at which the metal shifts from one state to another is dependent upon the contents of the alloy. At temperatures below the transition temperature the metal is in its "martensitic" state. In this state the metal is co paratively soft and may be deformed and twisted with relative ease.
  • Fig. 6 is a side elevational view of the embodiment of Fig. 5 showing the vertical sheath insert within the vertical sheath;
  • Fig. 7 is a side perspective view of the vertical sheath attached to a band on a molar;
  • Fig. 28 is a plan or occlusal view of the upper jaw illustrating the application of the shape memory metal maxillary molar distalizer with palatal anchorage in place in a misaligned and compressed jaw;
  • Sheath 20 of Fig. 1 is a horizontal-insert type of sheath and is positioned within the mouth such that anterior end 26 of sheath 20 is oriented towards the front of the mouth while posterior end 28 is oriented towards the back or posterior of the mouth. This orientation is such that indent 29 on lingual wall 27 is positioned at the posterior of the sheath. While sheath 20 and sheath insert 30 are usually composed of cast stainless steel, other alloys commonly employed in such orthodontic appliances are equally acceptable. Lingual wall 27 is attached to back wall 22 by sides 23, 25. The dimensions of sheath 20 are such that a frictional fit is provided with sheath insert 30.
  • sheath and the sheath insert of the present invention may be utilized with a wide range of orthodontic appliances made from a full range of materials
  • inventive sheath and sheath insert are of particular utility for use in conjunction with metal alloys which, due to their particular properties, may not be welded. Rather the formation of the appliance requires use of various "crimp tube" connectors to form the appliance and/or to join a sheath insert thereto to permit affixation within the mouth.
  • Sheath insert portion 74 is provided with insertion posts 76 which are sized for complemental reception in sleeves 84 of sheath 80.
  • the vertical sheath and sheath insert embodiment is provided with indent 78 on sheath insert posts 76 and indent 88 on sleeves 84 of sheath 80.
  • a sheath 190 attached to band 192 on molar 184 will necessarily be in a skewed position due to the irregular position of molar 184.
  • molars 184 are shown inwardly displaced or canted from vertical by angle theta. The degree of displacement illustrated by angle theta will also be present in the horizontal orientation of sheath 190.
  • this inward deviation of molars 184 presents sheath 190, 191 in closer proximity to one another than are sheath inserts 148, 149.
  • the nickel-titanium alloy begins to change its physical state.
  • the Ni-Ti begins the transition from its "martensitic” state where it is flexible into its “austenitic” state within which the metal seeks to return to a predetermined shape.
  • This predetermined shape has been provided to the device in its original manufacture by heating the nickel-titanium alloy arch wire 142, 144 segments of the apparatus at 1200° F while under a six percent strain.
  • This high temperature treatment of the Ni-Ti alloy provides it with its "memory" shape to which it seeks to return when it is in its austenitic state.
  • Fig. 16 a second prior art stainless steel device is presented which is used for rotating the teeth to which it is applied. Again, it may be observed that sheath 220, 222 are inwardly rotated in the direction of arrows "R".
  • Free arm 295 of spring 290 also may be adjusted to provide various degrees of pressure on the adjacent premolars.
  • Figs. 32B-D variations on these manipulations of the spring are shown.
  • free arm 295 has been moved outwardly to provide additional pressure on the premolars.
  • Fig. 32C the curve portion 294 has been moved to specifically impact the bicuspid.
  • Fig. 32D the spring has been only slightly adjusted outwardly to provide a mild force against both the premolars and the bicuspid.

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)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Arc d'expansion orthodontique (140) et dispositif insérable dans un fourreau (148) (149) destinés à l'expansion des arcades dentaires maxillaire et mandibulaire. Ledit despositif insérable dans un fourreau (148) permet l'utilisation d'appareils constitués de fils multiples (142), (144) composés d'alliages métalliques non soudables. L'utilisation desdits fils multiples est plus pratique et permet d'obtenir une plus grande diversité d'appareils.
EP93900719A 1992-02-10 1992-11-30 Arc orthodontique d'expansion palatale en ni-ti. Withdrawn EP0625888A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US83353692A 1992-02-10 1992-02-10
US833536 1992-02-10
PCT/US1992/010288 WO1993015684A1 (fr) 1992-02-10 1992-11-30 Arc orthodontique d'expansion palatale en ni-ti

Publications (2)

Publication Number Publication Date
EP0625888A1 true EP0625888A1 (fr) 1994-11-30
EP0625888A4 EP0625888A4 (fr) 1995-01-25

Family

ID=25264682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93900719A Withdrawn EP0625888A4 (fr) 1992-02-10 1992-11-30 Arc orthodontique d'expansion palatale en ni-ti.

Country Status (4)

Country Link
EP (1) EP0625888A4 (fr)
AU (1) AU3229093A (fr)
CA (1) CA2129833C (fr)
WO (1) WO1993015684A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816800A (en) * 1995-10-26 1998-10-06 Ortho Organizers, Inc. Palatal arch expander assembly and method of adjusting
US9089385B2 (en) * 2011-09-15 2015-07-28 Sue S. Lee Apparatus for applying corrective forces to shape palate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818226A (en) * 1987-09-18 1989-04-04 Lancer Pacific Orthodontic archwire
US5044947A (en) * 1990-06-29 1991-09-03 Ormco Corporation Orthodontic archwire and method of moving teeth
EP0465836A2 (fr) * 1990-06-07 1992-01-15 Tokin Corporation Ustensile orthodontique à force de correction contrôlable

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1429749A (en) * 1921-10-08 1922-09-19 Baker & Co Inc Lock for orthodontic appliances
US1594143A (en) * 1922-03-11 1926-07-27 Edward H Angle Orthodontic implement
US4412819A (en) * 1982-09-15 1983-11-01 Cannon James L Orthodontic arch wire
US4815968A (en) * 1987-11-09 1989-03-28 Keller Duane C Orthodontic appliance
US4854864A (en) * 1987-11-09 1989-08-08 Unitek Corporation Orthodontic bracket and palatal bar system
US4897035A (en) * 1988-08-29 1990-01-30 Green William A Connector appliance for orthodontic appliance systems
US5007828A (en) * 1990-02-08 1991-04-16 Farel Rosenberg Molar controlling and positioning orthodontic appliance with simplified orientation, pressure and adjustment mechanisms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818226A (en) * 1987-09-18 1989-04-04 Lancer Pacific Orthodontic archwire
EP0465836A2 (fr) * 1990-06-07 1992-01-15 Tokin Corporation Ustensile orthodontique à force de correction contrôlable
US5044947A (en) * 1990-06-29 1991-09-03 Ormco Corporation Orthodontic archwire and method of moving teeth

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9315684A1 *

Also Published As

Publication number Publication date
CA2129833A1 (fr) 1993-08-11
CA2129833C (fr) 1999-08-17
WO1993015684A1 (fr) 1993-08-19
EP0625888A4 (fr) 1995-01-25
AU3229093A (en) 1993-09-03

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