EP2575671A2 - Instrument dentaire pour l'obtention de données de correspondance sur les images d'une machoire - Google Patents

Instrument dentaire pour l'obtention de données de correspondance sur les images d'une machoire

Info

Publication number
EP2575671A2
EP2575671A2 EP11725019.1A EP11725019A EP2575671A2 EP 2575671 A2 EP2575671 A2 EP 2575671A2 EP 11725019 A EP11725019 A EP 11725019A EP 2575671 A2 EP2575671 A2 EP 2575671A2
Authority
EP
European Patent Office
Prior art keywords
dental tool
bite plate
navigation
ray
lower jaw
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Withdrawn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
EP11725019.1A
Other languages
German (de)
English (en)
Inventor
Wolfgang Brunner
Bernd Kordass
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.)
Zebris Medical GmbH
Original Assignee
Zebris Medical GmbH
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 Zebris Medical GmbH filed Critical Zebris Medical GmbH
Publication of EP2575671A2 publication Critical patent/EP2575671A2/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Withdrawn legal-status Critical Current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
    • 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
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A61C9/0046—Data acquisition means or methods

Definitions

  • the invention relates to a dental or denta-technical tool in the form of a bite plate, with which an impression of the surface structure of a lower jaw and / or upper jaw of a vertebrate can be obtained.
  • bite plates In the dental practice, tools for obtaining impressions of a patient's tooth surfaces, which are sometimes referred to as bite plates, have long been known and in use. After the impressions obtained for a long time tooth repair and replacement elements (crowns, artificial dentition etc.) are produced.
  • the invention is based on the object of this invention to provide a tool with which the movements (articulation) of lower and upper jaw of a vertebrate, especially humans, determine in a precise manner using modern imaging and positioning techniques to let.
  • a basic idea of the invention is to provide a dental tool for obtaining correlation data relating a radiographic image to position data of a mandible and / or upper jaw of a vertebrate.
  • Another idea of the invention is to use a bite plate with optical markings, which are recognizable as such in the optical image.
  • the invention includes the idea of providing an X-ray marker configuration which is defined in a predetermined spatial association with this bite plate and has at least three X-ray marker elements which can be recognized as such in the X-ray image.
  • X-ray imaging in the context of this patent application is also to be understood as meaning other imaging layer techniques or “layer-generating” techniques for imaging internal anatomical structures of the drainage system which are not purely optical surface imaging methods, the term “X-ray marker element" is intended to mean also any marker for such imaging methods are understood.
  • the bite plate is designed as a two-sided bite plate for the simultaneous acquisition of a lower jaw and upper jaw impression.
  • the bite plate can be designed with a biteable registration medium.
  • the x-ray marker elements are firmly embedded in the bite plate.
  • the bite plate AusNFun ⁇ conditions for inserting separate X-ray marker elements has.
  • at least a portion of the embedded Röntgenmarkerelemen ⁇ te or recesses in an integrally formed extension or more extensions of the bite plate is arranged.
  • the x-ray marker elements may have the basic shape of metal spheres or lenses, in particular of Ti or a Ti alloy. But there are also other geometric shapes and the use of other, for use in imaging methods of the type in question per se known materials possible, such as plastic with embedded X-ray contrast particles, z. B. from barium sulfate.
  • the proposed tool comprises a navigation marker configuration connected to the bite plate in a predetermined spatial allocation and having at least three (eg four) navigation markers acting as marker points of an optical or infrared or ultrasonic navigation system.
  • the navigation marker configuration is arranged on a separate base body, which is releasably connectable to the Bissp!
  • the navigation marker configuration is arranged on a curved base body.
  • a further refinement is characterized in that the bite plate and the separate base body of the navigation marker configuration each have a central extension. set, each having an adapted coupling element for releasable connection between bite plate and separate body.
  • the navigation marker configuration may also be attached to a separate stylus with which certain points of the bite plate (such as the optical markers mentioned above) are scanned to provide spatial location of the bite plate and, thereafter, the desired correlation data to produce a precise correlation to provide between X-ray data and motion data obtained by means of a (different) navigation marker configuration.
  • a corrding step for rendering the radiographic image associated with the optical image using image data of the X-ray marker elements provided in the dental tool.
  • Another system includes the o. G. special dental tool a position determination arrangement for the spatial positioning of provided on the dental tool or with this in temporary assignment to be brought navigation marker elements, wherein the position determination arrangement with the Navigatä- onsmarker instituten on the dental tool in transmitter-receiver relationship related to the Dental tool as fixedly defined navigation or navigation receiver element arrangement or camera arrangement.
  • the navigation marker arrangement can consist of three to four measuring points of an optical or acoustic measuring system. But this is not a necessary condition. It could also be a system using coils, magnets, laser beams or optical patterns. It is important that all degrees of freedom of movement can be measured in relation to a "fixed" sensor part, ie, in relation to the upper jaw (OK), whereby the complete motion measuring system can only use lower jaw and upper jaw (OK) sensors loading stand. In the case of corresponding optical systems, however, measuring points with respect to the lower jaw and the upper jaw may be necessary, and additional stationary cameras are required in the room. If "sensors” or “motion sensors” are mentioned here, then a navigation marker configuration is meant by which the change in position of an object in space - in particular of the lower jaw - can be detected as a time dependency of the spatial coordinates.
  • the dental tool with registration material is placed in the patient's mouth, curing the registration material.
  • the X-ray is performed with inserted Dentai tool, with the X-ray markers are visible in the subsequent evaluation.
  • an attachment to the teeth of the lower jaw is attached to the patient or glued to this.
  • the lower jaw movement sensor can be attached to this attachment and used to record the motion.
  • the dental tool already used in X-rays is now placed between the teeth.
  • a position measurement is performed with the position sensor on the tool.
  • the lower jaw motion sensor is attached to the U-Jaw Attachment, and a second position measurement is performed. This allows a coordinate transformation from the position of the tool to the position of the U-Pine Tree Attachment.
  • the tool is removed from the patient's mouth and the movement of the lower jaw can be performed and the movement recorded by the navigation system.
  • the X-ray marker pixels can now be combined with the position of the UK motion sensor in a combined bi-processing design, and the volume images can be animated in motion on the computer.
  • FIG. 2 shows a plan view of the tool according to FIG. 1 with a navigation marker arrangement attached
  • Fig. 4 is a sketch-like representation (top view) of a tool according to a second embodiment
  • 5A to 5E sketch-like representations (in the manner of side views of a human head) for explaining the handling of a tool according to the invention.
  • Fig. 1 shows a first dental tool 1 in the form of a modified two-sided bite plate 3 made of plastic with molded projections 5 and 7. While the main body of the bite plate 3 in the usual way with a perforation for advantageous handling of a recorded there in use (not shown here ) Registration material is provided, which requires no further explanation, a recess 5a is provided in the smaller projections 5, in which a (not shown here) X-ray marker element can be accommodated and fixed. The further, larger extension 7 takes a mounting plate 9 for attachment of a likewise not shown here additional part (see Fig, 2).
  • Fig. 2 shows the tool 1 of Fig. 1 with incorporated registration material! 11, in which a jaw impression can already be seen, with x-ray markers 13 inserted into the extensions 5. Furthermore, in this state of use, a navigation marker arrangement 15 is connected to the tool 1, the four navigation markers 19 attached to an arcuate plastic base 17 speckeilen case comprises ultrasonic transmitter or sensors (in other embodiments, for example, IR transmitter or receiver)
  • the X-ray markers 13 are arranged at the corners of an equilateral triangle, and the navigation markers 19 at the corners of a trapezoid.
  • the main body 17 of the navigation marker assembly 15 has a central extension region 17a in which on the one hand (not visible here) mounting means for connection to the mounting plate 9 (see FIG. 1) on the bite plate 3 and Further electrical connection components of the navigation markers are accommodated.
  • the x-ray markers 13 serve to correlate a radiograph of a vertebrate dentition area with a bite plate inserted therein to an optical image which, in a later step, is obtained from the center of the registration material using an optical imaging and digital image processing method is, or in particular to the coordinates of a predetermined position of the dentition area.
  • the attachment of the navigation marker assembly 15 also serves to obtain spatial position data of the teeth of the dentition by means of a positioning system known per se, by using the bite plate as a sort of "positioning template" into which the patient (after hardening of the registration material, of course) This defines a starting position for subsequent movement tracking by means of a navigation marker configuration attached to the lower jaw Once an (initial) position determination has been made, the position of the lower jaw can also be determined in all subsequent movement states via coordinate transformation. Methods of this type are known as such and therefore do not require a more detailed description here.
  • Fig. 3 shows once again both sides of the tool 1, each with a registered denture impression (a lower or upper jaw), which is later taken with an optical imaging method and digitized for further evaluation.
  • FIG. 4 shows as a second embodiment a tool which differs from the tool 1 according to FIGS. 1 to 3 by a distinctly recessed bite plate 3 'with inner recesses 3a, which allow a better adaptation of the basic shape to the dentition contour of the patient, a registration material 11 It is designed and mounted so that it can be "bitten through” by the patient, so that the teeth can move to their natural basic position when using the tool.
  • x-ray marker elements 13 are provided, two of which are placed on arms 6 'projecting far from the base body, and the structural design of the larger extension T and fastening elements 8' accommodated there also differs somewhat from the design of the tool 1.
  • 5A to 5E essential phases of a dental examination procedure are sketched, in which a tool according to the invention can be used appropriately and which in particular for determining the detailed sequence of articulation movements of a dentist and the resulting spatial relationships between the tooth surfaces of upper and Lower jaw serves.
  • FIG. 5A shows how the tool 1 (herein two-sided with registration material 11 on both surfaces) is disposed with an appendix 7 projecting forward to obtain a dental impression in the patient's mouth.
  • FIG. 5B shows how, in addition, a para-occlusal device 21 is attached to the front side of the teeth of the lower jaw, which has an extension 23 for receiving a partial component of a movement sensor system or a system for dynamically determining the relative positions between upper and lower jaw.
  • Fig. 5C is shown how on the one hand on the extension 7 of the dental tool 1, such a motion sensor sub-component (navigation marker assembly) 15 is mounted while a so-called.
  • Stirnbogen 25 is temporarily attached in the frontal area and on the nose of the patient, the second Sub-component 27 of the motion sensor or the positioning system stops.
  • this system is designed with ultrasound transmitters and receivers. With this configuration, a position measurement is performed.
  • the system is rebuilt to the state shown in FIG. 5D, that is, the mandibular component 15 of the positioning system is translated to the paracatal attachment 21.
  • the dental tool 1 is removed from the mouth of the patient, so that it can move the lower jaw freely and during these movements, a dynamic detection of the relative positions between the upper and lower jaw can be performed. This is the actual measurement of the movements during the articulation movement, and the combined evaluation of the position data obtained with the image data of the tooth surfaces provides a three-dimensional movement model.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dentistry (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un instrument dentaire permettant d'acquérir des données de corrélation qui mettent en relation une radiographie avec une image optique de surfaces dentaires d'une mâchoire inférieure et/ou d'une mâchoire supérieure d'un vertébré. Cet instrument présente une plaque d'occlusion pourvue de marques optiques identifiables en tant que telles dans l'image optique, ainsi qu'un réseau de marqueurs radiographiques comprenant au moins trois éléments marqueurs radiographiques identifiables en tant que tels dans l'image radiographique, ce réseau étant relié de manière définie à la plaque d'occlusion selon une affectation spatiale prédéterminée.
EP11725019.1A 2010-05-28 2011-05-30 Instrument dentaire pour l'obtention de données de correspondance sur les images d'une machoire Withdrawn EP2575671A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010021934A DE102010021934A1 (de) 2010-05-28 2010-05-28 Dental-Werkzeug
PCT/EP2011/058790 WO2011147988A2 (fr) 2010-05-28 2011-05-30 Instrument dentaire

Publications (1)

Publication Number Publication Date
EP2575671A2 true EP2575671A2 (fr) 2013-04-10

Family

ID=44626985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11725019.1A Withdrawn EP2575671A2 (fr) 2010-05-28 2011-05-30 Instrument dentaire pour l'obtention de données de correspondance sur les images d'une machoire

Country Status (3)

Country Link
EP (1) EP2575671A2 (fr)
DE (1) DE102010021934A1 (fr)
WO (1) WO2011147988A2 (fr)

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DE102011117550A1 (de) 2011-09-21 2013-03-21 Zebris Medical Gmbh Artikulatoranordnung und Verfahren zum Betrieb eines Artikulators
DE202011105953U1 (de) 2011-09-21 2011-10-20 Zebris Medical Gmbh Bissgabel und Bissnahme-Set
DE102012111020A1 (de) * 2012-11-15 2014-05-15 Merz Dental Gmbh Gebissabdruckvorrichtung, Gebissabdruckset sowie Verfahren zur Abformung und lagerichtiger Registrierung einer Kieferanordnung
EP2754411A1 (fr) * 2013-01-10 2014-07-16 Kaltenbach & Voigt GmbH Appareil d'enregistrement électronique pour la détection de mouvements de la mâchoire
DE202013001910U1 (de) 2013-02-27 2013-04-09 Zebris Medical Gmbh Bissgabelanordnung und System zur Bewegtbild-Darstellung des Gebisses
DE102013204207A1 (de) * 2013-03-04 2014-09-04 Zebris Medical Gmbh Bissgabel mit Aussparungen
DE102013102421A1 (de) * 2013-03-11 2014-09-11 Polymetric GmbH Verfahren zur Überlagerung von digitalisierten Darstellungen und Referenzmarkereinrichtung
DE102014102111B4 (de) 2014-02-19 2018-08-23 Zebris Medical Gmbh Verfahren zur Visualisierung zahnmedizinisch relevanter anatomischer Relationen und/oder Strukturen
DE102014102770B4 (de) * 2014-03-03 2020-04-23 Zebris Medical Gmbh Bissgabel sowie Verfahren und System zur Darstellung eines Gebisses
DE202014102968U1 (de) 2014-06-30 2015-07-01 Zebris Medical Gmbh Kopplungslöffel
DE202014103131U1 (de) 2014-07-08 2015-07-13 Zebris Medical Gmbh Paraokklusaler Bügel und Unterkiefer-Messbogen
DE102014111643A1 (de) 2014-08-14 2016-02-18 Zebris Medical Gmbh Bewegtbild-Erzeugungsverfahren zur Erzeugung einer koordinatengetreuen Bewegungsbildfolge des Gebisses eines Wirbeltiers
DE102015115034A1 (de) * 2015-09-08 2017-03-09 Sicat Gmbh & Co. Kg Verfahren zur Behandlungsplanung
DE202015105356U1 (de) 2015-10-09 2016-10-12 Zebris Medical Gmbh Bissgabel mit Stegen
IT201700012278A1 (it) * 2017-02-06 2018-08-06 Paolo Bernardi dispositivo per orientare immagini tac e immagini da scansioni ottiche per l'implantologia dentale
FR3093636B1 (fr) * 2019-03-12 2022-08-12 Modjaw Procede de recalage de modeles virtuels des arcades dentaires d’un individu avec un referentiel dudit individu
DE102019106403A1 (de) 2019-03-13 2020-09-17 Jörg Schlieper Vorrichtung und Verfahren zur Erfassung von Kieferrelationsdaten
DE202019101429U1 (de) 2019-03-13 2019-03-19 Jörg Schlieper Bißgabel
CN111145876B (zh) * 2019-12-27 2023-12-29 成都牙讯科技有限公司 一种牙科图片排列方法、系统、设备及存储介质

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DE10218435B4 (de) 2002-04-25 2010-03-04 Zebris Medical Gmbh Verfahren und Vorrichtung zur 3-dimensionalen Bewegungsanalyse von Zahnoberflächen des Oberkiefers in Relation zum Unterkiefer
DE102005004213A1 (de) * 2005-01-28 2006-08-10 Neumeyer, Stefan, Dr. Volumen-Tomographie-System sowie Bissplatte zur Verwendung bei einem solchen System
US8043091B2 (en) * 2006-02-15 2011-10-25 Voxelogix Corporation Computer machined dental tooth system and method
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Also Published As

Publication number Publication date
WO2011147988A3 (fr) 2012-04-12
WO2011147988A2 (fr) 2011-12-01
DE102010021934A1 (de) 2011-12-01

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