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EP3107481A1 - Anchorage system for the treatment of orthodontic malocclusions through ortho microscrews - Google Patents
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EP3107481A1 - Anchorage system for the treatment of orthodontic malocclusions through ortho microscrews - Google Patents

Anchorage system for the treatment of orthodontic malocclusions through ortho microscrews

Info

Publication number
EP3107481A1
EP3107481A1 EP14777756.9A EP14777756A EP3107481A1 EP 3107481 A1 EP3107481 A1 EP 3107481A1 EP 14777756 A EP14777756 A EP 14777756A EP 3107481 A1 EP3107481 A1 EP 3107481A1
Authority
EP
European Patent Office
Prior art keywords
ortho
palatal
microscrews
screw
wire
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Withdrawn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
EP14777756.9A
Other languages
German (de)
French (fr)
Inventor
Anastasios GKIOKAS
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 EP3107481A1 publication Critical patent/EP3107481A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0093Features of implants not otherwise provided for
    • A61C8/0096Implants for use in orthodontic treatment
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/10Devices having means to apply outwardly directed force, e.g. expanders

Definitions

  • the present invention relates to a metallic anchorage system for the treatment of orthodontic malocclusions, characterized in that it focuses on the use of a palatal bar onto which two cross tubes, of the same diameter, have been inserted, one at each side.
  • the present invention eliminates all the above disadvantages as it focuses on the use of a palatal bar on which two cross tubes of the same diameter are inserted, one at each side, moving along and on the palatal bar whilst the cross can rotate around the axis of the bar. In this way, control at vertical and horizontal, buccal-lingual, level is achieved during the movement.
  • the ideal exertion of the force through the coil spring on the tooth (center of resistance) as well as the easy access of the palatal wire can be easily achieved.
  • Figure 1 is a view of the upper tooth arch and the ortho microscrews, located in a palatal way, and the palatal bar welded on the bands of the a' molars and the cross tubes attached on said palatal bar.
  • Figure 2 is a depiction of the anchorage system fully developed, in case we wish distalizing forces to be exerted through the coil springs to the a' molars.
  • Figure 3a is a depiction of an alternative embodiment of the system where one or two premolars is missing, where instead of coil springs there are retraction means through the stops and to the cross tubes exerting mesializing forces.
  • Figure 3b' is a depiction of an alternative embodiment of the system in case of open bite, where at the base of the screw of the screw-nut system (8) a metal button (13) of same diameter is attached.
  • Figure 4 is the side view of the connector-screw driver and cross sections where its one end is a hexagon, in order to fit the opening of the respective wrench, and its other end is an octagon in order to exactly fit to the ortho microscrew that we wish to screw until reaching its final position.
  • Figure 5 is a side view of the cross tubes and cross sections where it is shown that they are perpendicular to each other and also their nozzle with diameter 1 mm.
  • Figure 6 is a facing view, side view and cross section view of the abutments, which are welded on the palatal wire and in this way they connect the ortho microscrews with the palatal bar through the cross tubes.
  • Figure 7 is a side view and cross section view of the screw - nut system where the screw comprises an opening between the vertical flaps such that it is possible for the palatal wire to pass through said screw.
  • Figure 8 is a side view and cross section view of the special screwdriver (10).
  • Figure 9 depicts the wrench where the connector - screwdriver brings together the wrench with the ortho microscrew in order for it to be screwed to the best wished point in respect, from the one hand, of the stability of the ortho microscrew and from the other of the distance between the low part of the head of the ortho microscrew and the palatal mucosa. This part is of great clinical importance as most of the inflammations are located there.
  • the invented system comprises two ortho microscrews (1) located in a palatal way at the imaginary line connecting the interspaces between the upper dogtooth and the premolar of the one side with the respective teeth of the other side, the palatal bar (3) connecting the two upper a' molars through bands, two cross tubes (4) which will pass through before the welding of the palatal bar (3) on the bands, the two abutments (9) on the ortho microscrews (1), the main palatal wire (5) of indicative diameter of 0,9 mm which through its welding on the abutments (9) it connects the ortho microscrews (1) with the a' molars through the palatal bar (3) and the cross tubes (4) forming actually a ⁇ shape, the two coil springs (7) one at each side pass through the horizontal part of the palatal wire (5), if distalizing forces are exerted, or there are no coil springs but retraction means such as retraction chains (1 1), if mes
  • the present invention focuses mainly on the ortho microscrews which have been widely used lately in the orthodontic science. In this approach they are located in a palatal way between the dogtooth zone and the first premolar. There is no exact location as it depends on the anatomy of the palatal area of each person and the evaluation of the intervening person.
  • the ortho microscrews used are available in the market and their length is usually between 8 mm to 12 mm whilst their width is between 1 ,5 mm to 2 mm and they are self taping.
  • a connector - screwdriver (2) is used, the one end of which is of octagon shape and it completely fits to the ortho microscrew, and its other end is of hexagon shape in order to be completely inserted into the opening of the wrench (12).
  • the ensuring of the stability between the ortho microscrews constitutes a parameter of great clinical importance as the stability of the ortho microscrews is mostly affected by the quality of the bone and by the absence of inflammations around the microscrews, factors that are mainly controlled by the controlled screw of the ortho microscrew and constitute the beginning of the success of the anchorage system.
  • the palatal bar (3) of Gosgharian type is located at the upper two a' molars through bands which is immobilized either by welding or through a laser machine where two tubes (4), which are perpendicular between them, of cross shape are attached by welding or by laser, of indicative diameter of 1x1 mm respectively and of indicative length of 2x2 mm. Then the two ortho microscrews are covered with the abutments (9) and then the impression is taken.
  • the reproduction of the area with the ortho microscrews is possible at the plaster model where the required preparation of the palatal wire (5) is made, which is round and its indicative diameter is 0,9 mm, in such a way in order for the palatal wire (5) to be passively fit to the two ortho microscrews and also to the horizontal tubes of each cross.
  • the wire and the metal abutments (9) are being welded at their contact point through laser or welding.
  • a metal button (13) of a respective diameter is attached to the base of the screw of the screw- nut system (8) which is used for cases where support is needed for the elastic attachment by the screw - nut system and cross tubes (see figure 3b').
  • the attachment starts from the mesial side of the 1 st molar, surrounds the screw-nut system (8) and ends at the distal side of the 1 st molar in order for such force to be exerted that the intrusion of the 1 st molar to be achieved.

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)
  • Orthopedic Medicine & Surgery (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Surgical Instruments (AREA)

Abstract

An anchorage system for the treatment of orthodontic malocclusions through ortho microscrews, which comprises a connector screwdriver (2) at the one end of which the ortho microscrews (1) are fitted, and the other end is recessed in the opening of the wrench (12), the palatal bar (3) connected to the upper molars through bands, two cross tubes (4) passing through the wire (5) of the palatal bar (3), between the molars, which are welded one upon the other, forming a cross and which can slide along the bar and rotate around said bar giving to the palatal wire (5), on the one hand, the required passivity throughout its course and, on the other hand, the ideal contact point of the palatal wire with the palatal bar (3).

Description

ANCHORAGE SYSTEM FOR THE TREATMENT OF ORTHODONTIC MALOCCLUSIONS THROUGH ORTHO MICROSCREWS
Field of the invention
The present invention relates to a metallic anchorage system for the treatment of orthodontic malocclusions, characterized in that it focuses on the use of a palatal bar onto which two cross tubes, of the same diameter, have been inserted, one at each side.
Description of the related art
Until today in the prior art there exist various known techniques of anchorage and for the treatment of orthodontic malocclusions using palatal access. The common and basic characteristic of all known techniques is that the main palatal wire is directly welded on the bands of the upper a' or b' molars where moving is required. However, the main disadvantage of said technique is that the complete control, buccal - lingually, in respect of the moving molar is not possible. In addition, it is difficult to adjust the palatal wire "coming" from the ortho microscrews to the band.
Summary of the invention
All the above technical disadvantages led the inventor to an attempt to find a solution, the result of which is the object of the present invention
The present invention eliminates all the above disadvantages as it focuses on the use of a palatal bar on which two cross tubes of the same diameter are inserted, one at each side, moving along and on the palatal bar whilst the cross can rotate around the axis of the bar. In this way, control at vertical and horizontal, buccal-lingual, level is achieved during the movement.
Moreover, due to the ability of the cross tube to move in height, in respect to the palatal bar, and to rotate, the ideal exertion of the force through the coil spring on the tooth (center of resistance) as well as the easy access of the palatal wire can be easily achieved.
Brief description of the drawings The technical, constructional and functional characteristics of the present invention will be comprehensive to those skilled in the art, with reference to the accompanying drawings of the present specification, which show industrial preferred embodiments of the present invention. In particular:
Figure 1 is a view of the upper tooth arch and the ortho microscrews, located in a palatal way, and the palatal bar welded on the bands of the a' molars and the cross tubes attached on said palatal bar.
Figure 2 is a depiction of the anchorage system fully developed, in case we wish distalizing forces to be exerted through the coil springs to the a' molars. Figure 3a is a depiction of an alternative embodiment of the system where one or two premolars is missing, where instead of coil springs there are retraction means through the stops and to the cross tubes exerting mesializing forces. Figure 3b' is a depiction of an alternative embodiment of the system in case of open bite, where at the base of the screw of the screw-nut system (8) a metal button (13) of same diameter is attached.
Figure 4 is the side view of the connector-screw driver and cross sections where its one end is a hexagon, in order to fit the opening of the respective wrench, and its other end is an octagon in order to exactly fit to the ortho microscrew that we wish to screw until reaching its final position.
Figure 5 is a side view of the cross tubes and cross sections where it is shown that they are perpendicular to each other and also their nozzle with diameter 1 mm.
Figure 6 is a facing view, side view and cross section view of the abutments, which are welded on the palatal wire and in this way they connect the ortho microscrews with the palatal bar through the cross tubes.
Figure 7 is a side view and cross section view of the screw - nut system where the screw comprises an opening between the vertical flaps such that it is possible for the palatal wire to pass through said screw. Figure 8 is a side view and cross section view of the special screwdriver (10).
Figure 9 depicts the wrench where the connector - screwdriver brings together the wrench with the ortho microscrew in order for it to be screwed to the best wished point in respect, from the one hand, of the stability of the ortho microscrew and from the other of the distance between the low part of the head of the ortho microscrew and the palatal mucosa. This part is of great clinical importance as most of the inflammations are located there.
The drawings show an example of the present invention. Hereinafter, same reference numbers of the main parts of the object refer to the corresponding reference numbers of those parts in the accompanying drawings. The parts are not depicted to scale but simply in dimensions proportional to one another.
Description of the preferred embodiments
According to the selected indicative embodiment of the invention, the invented system comprises two ortho microscrews (1) located in a palatal way at the imaginary line connecting the interspaces between the upper dogtooth and the premolar of the one side with the respective teeth of the other side, the palatal bar (3) connecting the two upper a' molars through bands, two cross tubes (4) which will pass through before the welding of the palatal bar (3) on the bands, the two abutments (9) on the ortho microscrews (1), the main palatal wire (5) of indicative diameter of 0,9 mm which through its welding on the abutments (9) it connects the ortho microscrews (1) with the a' molars through the palatal bar (3) and the cross tubes (4) forming actually a Π shape, the two coil springs (7) one at each side pass through the horizontal part of the palatal wire (5), if distalizing forces are exerted, or there are no coil springs but retraction means such as retraction chains (1 1), if mesializing forces are exerted, and two stops such as the screw - nut system (8) situated on the horizontal part of the palatal wire (5) in order for the force of the coil springs (7) or of the retraction chains (11), respectively, to be controlled. The coils springs (7) are indicatively made of open type hyper elastic nickel titanium (ni-ti).
The present invention focuses mainly on the ortho microscrews which have been widely used lately in the orthodontic science. In this approach they are located in a palatal way between the dogtooth zone and the first premolar. There is no exact location as it depends on the anatomy of the palatal area of each person and the evaluation of the intervening person. In the present invention the ortho microscrews used are available in the market and their length is usually between 8 mm to 12 mm whilst their width is between 1 ,5 mm to 2 mm and they are self taping.
In order to ensure the stability of said ortho microscrews a connector - screwdriver (2) is used, the one end of which is of octagon shape and it completely fits to the ortho microscrew, and its other end is of hexagon shape in order to be completely inserted into the opening of the wrench (12). The ensuring of the stability between the ortho microscrews constitutes a parameter of great clinical importance as the stability of the ortho microscrews is mostly affected by the quality of the bone and by the absence of inflammations around the microscrews, factors that are mainly controlled by the controlled screw of the ortho microscrew and constitute the beginning of the success of the anchorage system.
Provided that the stability and the exact final position of the above ortho microscrews is ensured, with the help of the above fittings, the palatal bar (3) of Gosgharian type is located at the upper two a' molars through bands which is immobilized either by welding or through a laser machine where two tubes (4), which are perpendicular between them, of cross shape are attached by welding or by laser, of indicative diameter of 1x1 mm respectively and of indicative length of 2x2 mm. Then the two ortho microscrews are covered with the abutments (9) and then the impression is taken. In this way the reproduction of the area with the ortho microscrews is possible at the plaster model where the required preparation of the palatal wire (5) is made, which is round and its indicative diameter is 0,9 mm, in such a way in order for the palatal wire (5) to be passively fit to the two ortho microscrews and also to the horizontal tubes of each cross. The wire and the metal abutments (9) are being welded at their contact point through laser or welding.
Alternatively, in case we wish to implement the invention to a special type of orthodontic malocclusions where there is an increased vertical discrepancy of the posterior teeth of the upper tooth arch with direct impact to the area of the front teeth (open bite), a metal button (13) of a respective diameter is attached to the base of the screw of the screw- nut system (8) which is used for cases where support is needed for the elastic attachment by the screw - nut system and cross tubes (see figure 3b'). In this case, the attachment starts from the mesial side of the 1st molar, surrounds the screw-nut system (8) and ends at the distal side of the 1st molar in order for such force to be exerted that the intrusion of the 1st molar to be achieved. In this way the intrusion of the 1st molars and then the change of the upper masticatory plain level are achieved with direct result the decrease of the open bite and the reservation of the continuous contact between the palatal wire and the ortho microscrews and the compensation of any forces (from the elastic attachment) which tend to detach the palatal wire from the ortho microscrews. The result of this embodiment is the prevalence of the wished forces which will intrude the 1st molars.
If all the above is achieved at the plaster model, then the meeting with the patient takes place where the above system is placed.

Claims

1. An anchorage system for the treatment of orthodontic malocclusions through ortho microscrews, characterized in that it comprises a connector screwdriver (2) at the one end of which the ortho microscrews (1) are fitted in order for the stability of the ortho microscrews (1) to be ensured, and its fee end is recessed in the opening of the wrench (12), the palatal bar (3) which is welded on the upper a' molars through bands, two cross tubes (4) passing through the wire (5) of the palatal bar (3) before its welding with the bands of the molars the indicative diameter of which is 1mm, and which are characterized in that they are vertically welded between them forming a cross and in that they can move along the bar and rotate around said bar giving to the palatal wire (5), from the one hand, the required passivity throughout its course and, from the other hand, the ideal contact point between the palatal wire and the palatal bar (3), i.e. the molars, the two abutments (9) of the ortho microscrews, the palatal wire (5) welded on the abutments (9), forming in substance a Π shape, and the two stops of the screw-nut system (8) type screwed with the screwdriver (10) at the end of the head of which the nut (8) is recessed in order to be held during the screwing, one at each side on the palatal wire and, finally, the two coil springs (7) inserted at each side of the palatal wire (5), in case of distalization of the a' molars, or without the spring coils (7) but with the intervention of other retraction means, such as the retraction chains (11), in case of space closure near the a' molars.
2. An anchorage system for the treatment of orthodontic malocclusions through ortho microscrews according to claim 1 , characterized in that the palatal wire (5) which is welded on the abutments (9) as a whole forming a Π shape, passes passively through the cross tubes (4) and the palatal bar (3) giving stability to the anchorage system through the ortho microscrews (1) and resistance to the forces exerted by the coil springs (7) or alternatively by the retraction chains (11) and the remaining forces of the mouth environment.
3. An anchorage system for the treatment of orthodontic malocclusions through ortho microscrews, according to claim 1 , characterized in that both inner mouth stops of the screw-nut system (8), are screwed by the screwdriver (10), in a way that the required resistance to the coil springs (7) is obtained, if distalizing force is exerted to the molars, or without the coil springs but with the help of retraction means (e.g. retraction chain) between the screw-nut system (8) and the cross tubes (4), also one at each side, where the screw-nut system (8) is designed in such a way in order to accept a round wire the indicative diameter of which is 0,9 mm.
4. An anchorage system for the treatment of orthodontic malocclusions through ortho microscrews, according to claim 1 , characterized in that it comprises the two coil springs (7) made of Ni-Ti (nickel-titanium), the diameter of which is bigger compared to the one of the palatal wire (5), such that distalizing forces are exerted through the compression of the above coil springs between the stops (screw-nut) and the 'a molars through cross tubes (4) of the palatal bar (3).
5. An anchorage system for the treatment of orthodontic malocclusions through ortho microscrews, according to claim 1 , characterized in that the connector-screwdriver (2) comprises one end of octagon shape adjusted to the ortho microscrew (1) and one of hexagon shape recessed in the opening of the wrench (12), in order for the stability and the best possible position of the ortho microscrew in respect of the palatal mucosa is ensured.
6. An anchorage system for the treatment of orthodontic malocclusions through ortho microscrews, according to claim 1 , characterized in that the screwdriver (10) exactly fits to the hexagon screw (8) and is used in order to sufficiently screw the screw-nut system on the palatal wire (5) and in order for the desired force of the coil springs to be fully controlled, in case of distalizing action, or the mesializing force, in case of retraction action.
7. An anchorage system for the treatment of orthodontic malocclusions through ortho microscrews, according to claims 1-7, characterized in that alternatively, in order for the system to be applied to open bite or space closure, a metal button (13), of a respective diameter, is attached at the base of the screw of the screw-nut system (8), which is used in cases where support is required for elastic attachment by the screw-nut system and the cross tubes, whilst the attachment starts from the mesial side of the 1st molar, surrounds the screw-nut system (8) and ends at the distal side of the 1st molar, in order for such a force to be exerted that the molar can be intruded.
EP14777756.9A 2013-08-19 2014-08-18 Anchorage system for the treatment of orthodontic malocclusions through ortho microscrews Withdrawn EP3107481A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR20130100473A GR1008288B (en) 2013-08-19 2013-08-19 Solving of orthodontic problems via micro-implants
PCT/GR2014/000046 WO2015025181A1 (en) 2013-08-19 2014-08-18 Anchorage system for the treatment of orthodontic malocclusions through ortho microscrews

Publications (1)

Publication Number Publication Date
EP3107481A1 true EP3107481A1 (en) 2016-12-28

Family

ID=51655776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14777756.9A Withdrawn EP3107481A1 (en) 2013-08-19 2014-08-18 Anchorage system for the treatment of orthodontic malocclusions through ortho microscrews

Country Status (3)

Country Link
EP (1) EP3107481A1 (en)
GR (1) GR1008288B (en)
WO (1) WO2015025181A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3801360A1 (en) 2018-06-06 2021-04-14 3M Innovative Properties Company Hardenable dental compositions comprising basic core material encapsulated in an inorganic shell and dispensing devices therewith
JP6557887B1 (en) * 2019-01-07 2019-08-14 修二 山口 Tooth moving instruments
CN110488331B (en) * 2019-09-20 2021-12-03 恒宇北斗(北京)科技发展有限公司 Satellite navigation positioner and application thereof

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US5853291A (en) * 1997-10-10 1998-12-29 Devincenzo; John Subperiosteal bone anchor
DE202008007527U1 (en) * 2008-06-05 2008-08-14 Promedia A. Ahnfeldt Gmbh Apparatus for orthodontic correction treatment, in particular for correcting the malalignment of molars
DE102009023357A1 (en) * 2009-05-29 2010-12-02 Baxmann, Martin, Dr. Orthodontic device for executing corrective action at jaw, has length-adjustable telescoping unit, which is extended between two front fastening units and rear fastening unit
US20120077147A1 (en) * 2010-09-29 2012-03-29 Kalange John T Swivel Head Microimplant Wrench

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Also Published As

Publication number Publication date
GR1008288B (en) 2014-09-09
WO2015025181A1 (en) 2015-02-26

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