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WO2008144258A1 - Contrôles d'articulateur dentaire générés dynamiquement - Google Patents

Contrôles d'articulateur dentaire générés dynamiquement Download PDF

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Publication number
WO2008144258A1
WO2008144258A1 PCT/US2008/063256 US2008063256W WO2008144258A1 WO 2008144258 A1 WO2008144258 A1 WO 2008144258A1 US 2008063256 W US2008063256 W US 2008063256W WO 2008144258 A1 WO2008144258 A1 WO 2008144258A1
Authority
WO
WIPO (PCT)
Prior art keywords
articulator
condylar
patient
bite plate
dental
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.)
Ceased
Application number
PCT/US2008/063256
Other languages
English (en)
Inventor
Ronald G. Presswood
Ronald G. Pressword, Jr.
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 WO2008144258A1 publication Critical patent/WO2008144258A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
    • A61C11/02—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings characterised by the arrangement, location or type of the hinge means ; Articulators with pivots
    • A61C11/022—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings characterised by the arrangement, location or type of the hinge means ; Articulators with pivots with two adjustable pivoting points, e.g. Argon-type articulators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
    • A61C11/006—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with an occlusal plate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry
    • A61C19/045—Measuring instruments specially adapted for dentistry for recording mandibular movement, e.g. face bows
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry
    • A61C19/05—Measuring instruments specially adapted for dentistry for determining occlusion

Definitions

  • the present invention relates to dental articulators and, more particularly, to an improved articulator which allows for accurate simulation of the jaw or condylar movements of a patient and accurate interchangeability of dental casts.
  • a dental articulator The purpose of a dental articulator is to simulate the jaw or condylar movements of a patient. This instrument enables a dentist to obtain the necessary diagnostic information for the treatment of occlusal irregularities, such as malocclusion, and the fabrication of dental casts for restorations such as "fixed and removable dentures, crowns and bridges.”
  • the present invention is directed to dental articulators and, more particularly, to an improved articulator which allows for accurate simulation of the jaw or condylar movements of a patient and accurate interchangeability of dental casts.
  • This process is unique in at least two aspects relating to common dental practice: (1) there is an expectation of recording the balancing (non-working side) guides for registering the medial wall of the glenoid fossa; and (2) all guidance is patient initiated and guided with verbal coaching from clinician encouraging maximal muscular effort.
  • an improved dental articulator comprising (1) an upper frame and a lower frame for simulating the lower dental arch and the upper dental arch, (2) one of said frames having a pair of condyle mounted thereon, (3) a pair of custom condylar tables mounted on the other of said frames, (4) a malleable material deposited in said condylar table (5) an incisal pin mounted to one of said frames, said incisal pin being sized to receive a sleeve (6) said sleeve being keyed to attach to a bite plate (7) said bite plate have a malleable material to record the movement of the teeth.
  • the apparatus described above wherein said condylar tables further comprises a disposable plastic condylar table.
  • said malleable material placed in said condylar table further comprises a thermo or self curing plastic material.
  • said apparatus described above, wherein said malleable material placed in said bite plate further comprises a thermo or self curing plastic material.
  • a method of recording three-dimensional jaw movements and transferring the record to a dental articulator comprises the steps of: (1) producing a standard impression of a patient's dentition, (2) recording the functional dynamics of occlusion using an impression material by having said patient perform an immediate lateral move, requesting said patient to bite back with strenuous force in right and left directions to produce a functionally generated path (FGP) record, (3) taking measurements using a bite plate and attaching the bite plate to a sleeve attached to a vertical member centered on a face bow, (4) producing a standard model of said patient's upper dental arch and lower dental arch, (5) placing said model of said upper arch and lower arch in a dental articulator, (6) placing said FGP record in said articulator, (7) placing condylar table in articulator, said condylar table filled with a malleable material, (8) manipulating said model of said upper dental arch and said lower dental arch to scribe
  • a method of measuring three-dimensional jaw movements and transferring the information to a dental articulator comprising the steps of: (1) placing a face bow on the patient and attaching a vertical member on said face bow to find the center of the patients face, (2) placing a bite plate in the patents mouth, (3) attaching the bite plate to a sleeve (4) attaching said sleeve to said vertical member attached to said face bow (5) recording the functional dynamics of occlusion using an impression material by having said patient perform an immediate lateral move, requesting said patient to bite back with strenuous force in right and left directions to produce a FGP record, (6) placing said FGP record in said articulator (7) transferring measurements taken from FGP to said articulator
  • an improved face bow comprising: (1) a vertical member; (2) bite plate, and (3) a sleeve attaching said bite plate to said vertical member.
  • FIG. 1 shows a typical dental articulator.
  • FIG. 2. shows a top view of the condylar table.
  • FIG. 3 shows a front view of the condylar table.
  • FIG. 4 shows a side view of the condylar table.
  • FIG. 5 shows a top view of the bite plate.
  • FIG. 6 shows the dental articulator with the bite plate and sleeve attached.
  • FIG. 7 shows the free hanging vertical member with bite plate fixed relative to the middle of the vertical member.
  • FIG. 8 shows a side view of the modified face bow arrangement.
  • FIGS. 1 through 8 The methods and apparatus of the present invention will now be illustrated with reference to FIGS. 1 through 8. It should be understood, that these are merely illustrative and not exhaustive examples of the scope of the present invention and that variations which are understood by those having ordinary skill in the art are within the scope of the present invention.
  • FIG. 1 an example of a dental articulator 100 is shown.
  • the dental articulator is used to hold models of the upper dental arch 110 and the lower dental arch 120 and allow the user to simulate the movement of the jaw when fabricating dental restorations such as crowns, bridges, and dentures.
  • Dental articulator 100 has an upper section 120 and lower section 130 used to mount the upper dental arch 110 and the lower dental arch 120.
  • Upper dental arch 110 is held the arm 131 of upper section 130 by a conventional mounting plate 132 and lower dental arch 120 is held the arm 141 of lower section 140 by a conventional mounting plate 142. Both mounting plates 132 and 142 are held to the articulator by a thumb screw 143 and 133.
  • the position of the upper dental arch 110 is adjusted by adding material to area 134 between the upper dental arch 110 and mounting plate 132.
  • the position of the lower dental arch 120 is adjusted by adding material to area 144 between the
  • Dental articulator 100 has a pair of posts 150 with condyles 151.
  • the condyle 151 fit with the condylar table 160 to simulate the ball and socket joint of the patient.
  • the condyle can be any shape the can be used to accurately represent the motion of the of the patients jaw. However, most conventional dental articulators use a spherical shaped member.
  • the custom condylar table of the present invention is shown in FIG. 2.
  • the condylar table 200 of the present invention consists of a rod 201 which can be connected to the dental articulator and a box 202 that is formed with three sides.
  • the front of box 202 is open to allow condyle 151 if the articulator to enter condylar table 200.
  • FIGS. 3 and 4 illustrate front an side views of the custom condylar table.
  • the custom condylar table allows one to produce dental components that will have substantially the correct contours such that final manipulations to achieve a good fit are minimized.
  • Dental articulator 100 also has an incisal pin 170 and incisal table 171.
  • Incisal pin 170 is utilized to set the normal distance between the upper dental arch 121 and the lower dental arch 120.
  • the method of the present invention in a broad sense comprises (1) preparing the teeth for restoration, (2) taking an impression of the prepared teeth, (3) recording the jaw movements of a patient, (4) producing the upper and lower model of the teeth, (5) transferring the recorded jaw movements to produce a model of the jaw movements, (6) reproducing the jaw movements in the articulator to create a custom condylar table.
  • the first step in applying the present invention requires preparing the tooth for the restoration.
  • the preparation of a tooth for a crown involves the irreversible removal of a significant amount of tooth structure.
  • the enamel is totally removed and the finished preparation is, thus, entirely dentin.
  • the amount of tooth structure required to be removed will depend on the material(s) being used to restore the tooth. For example, if porcelain is applied to a gold crown, the total tooth reduction is minimally 1.5 mm.
  • a standard impression of the dentition is made, allowing accurate models of the teeth to be made later. An impression is carried out by placing a gel like material into the mouth in a customised tray.
  • the material then sets to become an elastic solid, and when removed from the mouth retains the shape of the teeth.
  • Common materials used for dental impressions include, but are not limited to, sodium alginate, agar, condensation-cured silicones, and addition-cured silicones such as polyvinyl siloxane.
  • Bite plate 500 has a tongue 510 and record area 502.
  • the thermoplastic transfer material located in record area 502 (re-enforced wax, compound material, or Thermacryl) is warmed to a plastic state, adapted to the prepared teeth and the functionally generated path ("FGP") registration is recorded. Teeth that are not prepared are not covered with the registration material.
  • the patent is the fitted with a standard face bow that has been modified to include a free hanging vertical member 801.
  • Vertical member 801 is used to find the center of the patients face.
  • the bite plate is then inserted into the patient's mouth.
  • the bite plate has a tongue 802 extending from it and is attached to a sleeve 803.
  • Sleeve 803 is attached to vertical member 801. This records the relationship of the teeth to other physiological features and records the angle of the teeth.
  • FIG. 7 shows the free hanging vertical member with the bite plate fixed relative to the middle of the vertical member.
  • the method of this invention uses a modified procedure with more aggressive mastication used to generate the FGP. Specifically, the patient or subject is coached into an immediate lateral jaw movement and then asked to bite back with strenuous force in right and left directions. Care is taken to ensure that the subject uses significant/maximal effort when clenching the teeth together from the lateral position. [00039] Referring now to FIG. 6, the impressions and FGP are then used to generate the models of the patient's teeth and of the FGP. The models of the upper and lower dental arches are mounted in a standard articulator as described above. Sleeve 672 is then attached to incisal pin 670. This allows for transferring measurements relating to the location and angle of the teeth to the articulator.
  • the condylar table is then filled with a malleable material.

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  • 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

L'invention concerne des procédés améliorés et un appareil pour l'enregistrement et la simulation du mouvement condylien d'un individu. Cette invention concerne également un articulateur dentaire qui est conçu pour simuler des mouvements de mâchoire ou des mouvements condyliens d'un patient. Cet instrument permet à un dentiste d'obtenir l'information de diagnostic nécessaire pour le traitement des irrégularités occlusales, telles que la malocclusion, et pour la fabrication d'un moulage dentaire ou de 'prothèses dentaires'.
PCT/US2008/063256 2007-05-11 2008-05-09 Contrôles d'articulateur dentaire générés dynamiquement Ceased WO2008144258A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91756307P 2007-05-11 2007-05-11
US60/917,563 2007-05-11

Publications (1)

Publication Number Publication Date
WO2008144258A1 true WO2008144258A1 (fr) 2008-11-27

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Family Applications (1)

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PCT/US2008/063256 Ceased WO2008144258A1 (fr) 2007-05-11 2008-05-09 Contrôles d'articulateur dentaire générés dynamiquement

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WO (1) WO2008144258A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102626348A (zh) * 2012-04-19 2012-08-08 大连理工大学 一种仿下颌运动机器人
RU2471452C1 (ru) * 2011-10-06 2013-01-10 Евгений Михайлович Рощин Способ нахождения анатомической плоскости, являющейся параллельной плоскости окклюзии
EP2558020B1 (fr) * 2010-04-16 2017-11-01 Ronald G. Presswood Commandes d'articulateur dentaire générées de façon dynamiques
CN107510511A (zh) * 2016-06-17 2017-12-26 刘洋 一种颞下颌关节正畸系统及其制作个性化矫治器的方法
CN111150507A (zh) * 2020-01-19 2020-05-15 四川大学 一种牙科咬合重建修复中转移咬合关系和形态设计的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693260A (en) * 1970-05-22 1972-09-26 Snowden Hernandez Multipurpose adjustable occlusal fork
US4681539A (en) * 1985-09-06 1987-07-21 Knap Florian J Dental articulator and method
US5494440A (en) * 1994-05-19 1996-02-27 Condylator, Inc. Dental articulator
US20040009451A1 (en) * 2000-08-28 2004-01-15 Skinner Gregory C. Adjustable dental impression tray and methods for using same
US20070037115A1 (en) * 2005-08-11 2007-02-15 Sim Gordon K Dental model articulator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693260A (en) * 1970-05-22 1972-09-26 Snowden Hernandez Multipurpose adjustable occlusal fork
US4681539A (en) * 1985-09-06 1987-07-21 Knap Florian J Dental articulator and method
US5494440A (en) * 1994-05-19 1996-02-27 Condylator, Inc. Dental articulator
US20040009451A1 (en) * 2000-08-28 2004-01-15 Skinner Gregory C. Adjustable dental impression tray and methods for using same
US20070037115A1 (en) * 2005-08-11 2007-02-15 Sim Gordon K Dental model articulator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2558020B1 (fr) * 2010-04-16 2017-11-01 Ronald G. Presswood Commandes d'articulateur dentaire générées de façon dynamiques
RU2471452C1 (ru) * 2011-10-06 2013-01-10 Евгений Михайлович Рощин Способ нахождения анатомической плоскости, являющейся параллельной плоскости окклюзии
CN102626348A (zh) * 2012-04-19 2012-08-08 大连理工大学 一种仿下颌运动机器人
CN107510511A (zh) * 2016-06-17 2017-12-26 刘洋 一种颞下颌关节正畸系统及其制作个性化矫治器的方法
CN111150507A (zh) * 2020-01-19 2020-05-15 四川大学 一种牙科咬合重建修复中转移咬合关系和形态设计的方法
CN111150507B (zh) * 2020-01-19 2021-09-17 四川大学 一种牙科咬合重建修复中转移咬合关系和形态设计的方法

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