WO2017144585A1 - System zur intraoralen messung von kieferverlagerungen - Google Patents
System zur intraoralen messung von kieferverlagerungen Download PDFInfo
- Publication number
- WO2017144585A1 WO2017144585A1 PCT/EP2017/054162 EP2017054162W WO2017144585A1 WO 2017144585 A1 WO2017144585 A1 WO 2017144585A1 EP 2017054162 W EP2017054162 W EP 2017054162W WO 2017144585 A1 WO2017144585 A1 WO 2017144585A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical sensor
- patient
- sensor system
- jaw
- intraoral
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
- A61B5/4538—Evaluating a particular part of the muscoloskeletal system or a particular medical condition
- A61B5/4542—Evaluating the mouth, e.g. the jaw
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1126—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb using a particular sensing technique
- A61B5/1127—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb using a particular sensing technique using markers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/04—Arrangements of multiple sensors of the same type
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/0826—Detecting or evaluating apnoea events
Definitions
- the invention relates to a method and a system for detecting patient-specific lower jaw displacements in relation to the upper jaw in several degrees of freedom.
- the displacement of the lower jaw in relation to the maxilla is of interest.
- OSA Obstructive Sleep Apnea
- the mandible of the patient is displaced forward through a so-called protrusive splint to dilate the airway during sleep.
- the degree of forward displacement is a compromise between the widest possible widening of the respiratory tract and, at the same time, the least possible strain on the temporomandibular joints and the surrounding soft tissue.
- the measurement of the patient-specific mandibular advancement is essential, since the advancement in each patient is individually accompanied by a slight opening of the jaw and sideways movements. The knowledge of the individual feed pattern thus allows the most effective and patient-friendly therapy.
- the degree of mandibular advancement is measured conventionally with a so-called George gauge.
- This purely mechanical apparatus can only measure the total distance of the forward displacement; the recording of jaw opening and sideways movements along the feed path remains unknown.
- JMT jaw motion tracking
- an intra-oral system in which the relative movements of the jaw by means of a held on the upper jaw measuring sensor, which cooperates with a supported in the lower jaw electronic Stützstattregistrat recorded.
- the data is taken outside with a cable and processed by an external computer.
- the power of the masticatory muscles can then be determined from the measured chewing power.
- a disadvantage of some of the known systems is that a means rigidly connected to the teeth must be guided to the outside, but that the occlusion must not be impaired. This is usually done by attaching a paraocclusal attachment.
- the known systems have a relatively high weight and cause by long lever correspondingly strong disturbing forces in the motion measurement.
- Some known systems also rely on soft tissue on the head, so that the measurements can be falsified.
- a method for detecting patient-specific movements of the lower jaw in relation to the upper jaw in several degrees of freedom is known. It describes methods for the acquisition of 3D surface data of the maxilla and mandible which are For example, triangulation of surfaces or the NURBS ("Non-Uniform Rational B-Spline") method can be used to record volume data by means of CT, MRI or DVT, while 2D data can be obtained from photographs, video recordings or textures.
- NURBS Non-Uniform Rational B-Spline
- the object of the present invention is now to provide a method to be implemented with simple means and a corresponding system which, with high wearing comfort for the patient, enables intraoral measurements of jaw movements with high accuracy in up to six degrees of freedom.
- the core of the invention resides in having at least one optical sensor system held in a defined position in the oral cavity, which may include an intraoral camera or a photosensitive means, such as a diode array or a PSD (Position Sensitive Device), also in a defined position
- a photosensitive means such as a diode array or a PSD (Position Sensitive Device)
- an object located in the mouth which is formed by a light source, during recording of the jaw or chewing motion and recording the movement data in multidimensional space, is firmly anchored in the reference system of either the maxilla or the mandible, while the
- the optical sensor system is firmly held at a defined position of the upper jaw Anatomy of the oral cavity, for example, a tooth, herhalten.
- a separate mark is fixed as an object in the mouth.
- at least one light source in particular a highly focused beam, is defined in the mouth of the patient.
- a sequence of spatial points of the object are picked up by the optical sensor system and stored as a correspondingly multidimensional movement line in a movement data set.
- the intraoral camera it is assumed that sufficient light in the oral cavity is available for the recordings.
- the light can be introduced from the outside or advantageously generated within the oral cavity. Since the movements are recorded by the optical sensor system, in particular lateral movements can be detected correspondingly high resolution. Forward and backward movements can also be detected by the optical sensor system (s).
- the motion data may then be used, after appropriate registration and fusing, to animate a 3D computer graphics model of the patient's jaw region to virtual motion.
- a 3D computer graphics model of the patient's jaw region to virtual motion.
- the true patient-specific movement of the lower jaw in 3D volume anatomically true on a screen can be displayed.
- the movement traces of the temporomandibular joint can be visualized for each point in the 3D volume.
- a particular advantage of the intraoral optical sensor system according to the invention is that no rigid brackets need to be led out of the oral cavity and the patient retains his freedom of movement during the chewing movements.
- there is also sufficient space for the tongue so that the patient does not incur any inconvenience during the recording.
- the oral sensor located in the optical sensor system may be advantageous to equip with several intraoral cameras respectively photosensitive means, the same object in the simplest case take different perspectives during the movement.
- each intraoral camera or photosensitive agent may be assigned its own object.
- the procedure according to the invention is in principle also independent of whether an intraoral camera or a photosensitive means looks "upwards" against the upper jaw and the other intraoral camera or the other photosensitive means "downwards". The respective recorded movement data can then be superimposed on the basis of the known proportions later mathematically.
- miniaturized intraoral cameras or photosensitive means which send their images over a radio link, for example by means of Bluetooth or WLAN, to an out-of-mouth receiver where they are processed.
- Miniaturized cameras / photosensitive means with a corresponding transmission functionality which can be used for this purpose, are available at reasonable prices on the market.
- such cameras are used, which use their own also miniaturized light source.
- autarkic systems no supply line needs to be led out of the oral cavity, so that movement recordings up to the final bite are easily possible.
- Further advantages of such self-sufficient intraoral systems are that they are relatively light and therefore do not distort the chewing motion with excessive weight. In addition, even laugh lines can be recorded undisturbed.
- the particular advantage of the procedure according to the invention is that with the invention, the movements in up to six degrees of freedom, three translational and three rotational, and also can be taken up in the occlusion. This is made possible by the knowledge of the spatial relationship between the optical sensor systems and the objects.
- the system is directly and rigidly connected to the teeth of the upper jaw and the lower jaw, so that distortions of the images are excluded by connections to the soft tissue.
- This is done in a particularly preferable embodiment by means of individual shaped support arch, which are molded into the lower jaw and the upper jaw of the patient.
- the use of the support sheet is advantageously accompanied by the following workflow:
- both rows of teeth are recorded with an intraoral camera.
- the result of this recording are 3D surface data of high precision of the teeth.
- a recording of Bukkaibisses also takes place in order to optimize the placement of the sensors later.
- the planning must take into account that the arcs do not interfere with antagonists.
- support sheets are printed that can be inserted lingually into the patient's maxilla and mandible.
- the maxillary arch is connected to a measuring module, in particular comprising a plurality of intraoral cameras and light sources.
- a pointer is attached to the mandibular arch as the object to be measured, with which the movements can be measured.
- the finished support sheets are inserted into the patient's mouth. It may be necessary to re-take pictures if the support sheets are fixed on the teeth to detect their final position. This is not necessary if the final bite is included as a reference position.
- the measuring module and the pointer are fixed as an object on the fixed support sheets. After the start of the measurement, the recorded data are transmitted via local radio directly and in real time to the outside receiver and registered in the computer. It is advantageous to keep the intraoral cameras in different angles in order to record all degrees of freedom with high resolution.
- the support sheets support a modular design of the system.
- the measuring module used can be reused for other measurements.
- the support sheet of the next patient is provided with a correspondingly standardized recording.
- the support elbows provide a good retention, since they can be pressed with an interference fit from the inside against the teeth.
- the support sheets may be provided with radio-opaque markers to enhance registration of the system with the pre-established three-dimensional data sets.
- the procedure according to the invention also makes it possible to print with an additional printed part for each recorded or for each artificially set in the simulation Kiefer einen a Einartikulations Registrat, which is clicked on the support sheets.
- the self-sufficient and miniaturized system according to the invention can also be carried in a digital volume tomograph (DVT) and / or a face-scanner device, without a disturbing device being visible outside of the mouth.
- DVD digital volume tomograph
- the soft tissue movements visible in the Facescanner could be absorbed without interference with the tooth movements.
- the lips are closed.
- a soft tissue tissue model can be created without external interference influences.
- therapy rails can be used.
- the original rails are extended by sensor images or the sensors are glued to the rail.
- a scan can be used to determine the position of the sensors in relation to the rail.
- the sensors can also be attached to an orthodontic rail, so that the function / force measurement can also be performed with a brace.
- the optical intraoral cameras or photosensitive means are supported by acceleration sensors or gyroscopes which are assigned to the sensor module.
- acceleration sensors or gyroscopes which are assigned to the sensor module.
- upper and lower jaw rails can also be made to simulate this bite survey.
- the sensors for the motion measurement can be attached to the bite lift rails, so that it is possible to check what the patient's function with the planned bite lift is.
- the individually shaped support arches are equipped with a clamping device - for example, a suspension - which favors a rigid connection with the teeth in addition, even without adhesive connections must be made with the teeth.
- the individually shaped support arches have a device for measuring deformations of the arches.
- the smallest movements of the individual teeth can be detected and taken into account in the movement model.
- the individually shaped support arches can be constructed, for example, in such a way that a means for changing the position between the individual support members is placed between each two adjacent teeth.
- PSDs Position Sensitive Devices / Detectors
- Such PSDs are optical position sensors PSDs operate as analog sensors that have an isotropic sensor surface and provide continuous position information, or as discrete sensors whose surface is grid-structured and therefore provide discrete location information.
- the disadvantage of the photosensitive means is that the center of gravity of all incident light is determined, which makes the bundling of the emitter light and the avoidance of stray light necessary.
- the emitters In order to be able to determine the position of a plurality of emitters on the surface of a single diode, the emitters must be timed offset, so that only one emitter emits light, otherwise the center of gravity of all visible emitters would be determined as the position. So at any one time, only a single emitter emits light.
- the emitters emit the light in a temporal pattern. About this temporal pattern is clearly assignable, from which emitter the light comes from the diode surface. For example, a temporal pattern may be that each emitter transmits at a fixed blink frequency.
- Figure 1 shows a variant of the system according to the invention, in which an individually shaped holder 4 is clamped between the teeth 1 of the upper jaw and rests against the roof of the mouth 3.
- a power source 5 and a Bluetooth transmitter 6 are integrated.
- the transmitter 6 transmits the signals it receives from two intraoral cameras 7 to the outside.
- the two intraoral cameras 7 are aligned at an angle obliquely downwards and each have distinctive structures of a tooth 2 in the lower jaw in the visor.
- the intraoral cameras 7 are each assigned a light source.
- two optical sensor systems each comprising an intraoral camera 7 and a tooth with a defined structure located in the image of the intraoral camera 7 are thus provided. From the Movements made by the teeth during chewing movements pick up two sequences of points in space, from which a multidimensional line of movement can be created. In order to improve the resolution, it is also possible to spray clear patterns on the teeth to better emphasize the contour of the teeth.
- three intraoral cameras 8 are received in the above holder 4 and are directed to specific objects 9 ("pointer markers") provided in a lower holder 10.
- the lower holder 10 is also individually attached to the teeth 2 of the lower jaw and correspondingly clamped between the teeth 2.
- the objects 9 can - as here - be raised structures or be formed by a two-dimensional pattern, for example a QR code or bar code or another image pattern.
- FIG. 3 shows an embodiment which is optimized with regard to the reception of as many degrees of freedom as possible, in particular also of the vertical movements.
- a holder 1 1 is fitted between the teeth 1 of the upper jaw.
- two intraoral cameras 12 are aligned such that they point vertically downwards.
- the object to which they are directed is a splint 13 which is individually made and lingually clamped between the patient's teeth 2.
- the surfaces of the rail 13 may be covered with an image pattern.
- the holder 1 1 has a downwardly extending web 14, in which also two Intraoralfacts 15 are integrated.
- the viewing direction of the intraoral cameras 15 is horizontally to the left and right on the side wall of the rail 13, which may also be covered with an image pattern.
- This embodiment is particularly suitable for recording vertical and forward and backward high-resolution movements, while the cameras 12 are more likely to receive front and back and left and right movements.
- a rail 16 is individually adapted, which carries a holder 17. From the holder 17, a downwardly open recess 18 is formed, whose Interior of two left and right horizontally oriented intraoral cameras 19 is illuminated. An intraoral camera 20 is directed vertically downwards.
- the head 21 engages a punch, which is fixed by means of struts 22 to a held on the teeth 2 of the lower jaw rail 23.
- image patterns are attached, which are received by the intraoral cameras 19 and 20 during movements of the jaw.
- the patient's tongue lies comfortably between the struts 22 of the towering punch. All patient-specific parts can be printed.
- FIG. 5 corresponds to a combination of the variants of Figures 1 and 3.
- a holder 24 is fitted between the teeth 1 of the upper jaw and has a downwardly extending web 25, in three horizontally oriented Intraoralalthoughs 26 are integrated.
- the intraoral cameras 26 each have distinctive structures of a tooth 2 of the lower jaw in the sights. Thus, the movement of the teeth taken as objects is viewed from the side, so that vertical movement parts can be better identified.
- the variant according to FIG. 6 shows a holder 27 fitted between the teeth 1 of the upper jaw, which extends in an arc under the roof of the mouth and thus leaves room for the tongue.
- two intraoral cameras 28 are provided, which are directed obliquely downwards against respective opposing teeth 2 of the lower jaw.
- no protruding punch protrudes from the upper jaw.
- FIG. 7 shows a plaster model of an unfolded jaw.
- a reusable camera module 31 is held in a universal receptacle on a holder 30 that is specially shaped in the lower jaw 29.
- the cameras integrated in the camera module 31 are directed upward, where an image pattern 34 is printed on a holder 33 formed in the upper jaw 32.
- movement lines can be recorded in six degrees of freedom.
- FIG. 8 shows a variant in which a therapy splint 35 is placed on the teeth of the lower jaw. Cameras 36 inserted therein are directed vertically upwards and pick up the movement of the opposing teeth 1 in the upper jaw.
- the Therapy rail 35 is in positive engagement with the teeth 2 of the lower jaw and forms on the other side a defined investment for the teeth 1 of the upper jaw.
- FIG. 9 shows a variant similar to that of FIG. 4 and correspondingly using the same reference numerals but allowing a measurement of the biting force by means of a rubber flexible test piece 36 inserted into the recess 18, which is acted on by the head 21 of the stamp ,
- the cameras 19 absorb the compression of the test specimen 36 with known material properties.
- the forces can be determined close to the occlusion with the finite element method (FEM).
- FEM finite element method
- the lateral cameras 19 remain free and can measure the compression of the specimen 36 in the vertical direction.
- Right / left movements can be measured by front cameras.
- the upper cameras are covered by the test piece 36. Since the position of the final bite is known, either the measuring pointer can be adjusted in the lower jaw or the test piece 36 can be printed in the correct thickness.
- the measuring system can resolve a very fine quantization of forces through the FEM simulation.
- the rubber can be replaced by a piezo force measuring module, which is also inserted into the recess on the roof of the mouth. Contacts for the piezo force measuring element are present in the recess.
- the pointer in the lower jaw is designed so that it meets occlusion close to the force-measuring element. Thus, the occlusion force can be measured in occlusion without interference.
- Rubber and piezo sensor can also be combined.
- the support on the roof of the roof is good in the vertical direction, so that even high forces can be measured.
- FIG. 10 shows a variant in which planar photosensitive diodes 37 are used, which are able to focus the center of gravity of a light spot on an active light source Area to detect.
- the area diode has an optic 38, which bundles incident light from several actively illuminating emitters 39 in the opposing jaw.
- the opposing jaw contains a power source 40 and a drive electronics 41 for the emitter 39.
- the emitter 39 are driven by a time or frequency modulation to determine a light spot incident on a diode from which emitter it was sent.
- Figure 1 1 shows a variant with two-dimensional photosensitive diodes 42, in which not the diodes, but the emitters 43 of the opposing jaw have an optic 44.
- the optic 44 ensures that the light of the emitter is bundled and on the surface diodes a focused pixel is applied, whose center of gravity can be determined.
- the emitters 43 are driven by a time or frequency modulation. Instead of using emitters with focusing optics, lasers that emit focused light can also be used.
- FIG. 12 shows a variant with two-dimensional photosensitive diodes 45 in which diodes 45 and emitters 46 with an optical system 47 are located on the same side of the jaw.
- the light signals emitted by the emitters 46 are collimated by the optics 47 and reflected by reflectors 48 on the opposite side of the mandible, so that they are imaged on the surface diodes as points of light.
- the advantage of this variant is that the counter jaw side can be configured as a passive module that requires neither an energy source nor control electronics for emitters. Instead of using emitters with bundling optics, it is also possible to use lasers that emit already bundled light.
- the reflectors 48 on the opposite side of the mandible can be designed both as mirror or prism reflectors and as retroreflectors. Retroreflectors have the property that they reflect the incident light in the same or in a similar direction to the light source.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Physiology (AREA)
- Physical Education & Sports Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rheumatology (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/078,177 US20190021651A1 (en) | 2016-02-25 | 2017-02-23 | System for intraoral measurement of jaw displacements |
EP17706992.9A EP3419521A1 (de) | 2016-02-25 | 2017-02-23 | System zur intraoralen messung von kieferverlagerungen |
JP2018544899A JP6682647B2 (ja) | 2016-02-25 | 2017-02-23 | 顎変位を口内測定するシステム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016103320.0A DE102016103320A1 (de) | 2016-02-25 | 2016-02-25 | System zur intraoralen Messung von Kieferverlagerungen |
DE102016103320.0 | 2016-02-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017144585A1 true WO2017144585A1 (de) | 2017-08-31 |
Family
ID=58159067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/054162 WO2017144585A1 (de) | 2016-02-25 | 2017-02-23 | System zur intraoralen messung von kieferverlagerungen |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190021651A1 (de) |
EP (1) | EP3419521A1 (de) |
JP (1) | JP6682647B2 (de) |
DE (1) | DE102016103320A1 (de) |
WO (1) | WO2017144585A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017124580B3 (de) | 2017-10-20 | 2019-01-31 | Sicat Gmbh & Co. Kg | Verfahren zur Ermittlung und Visualisierung von Zahnstellungen unter Einwirkung von Beißkräften |
US10076415B1 (en) | 2018-01-09 | 2018-09-18 | Edwards Lifesciences Corporation | Native valve repair devices and procedures |
US10945844B2 (en) | 2018-10-10 | 2021-03-16 | Edwards Lifesciences Corporation | Heart valve sealing devices and delivery devices therefor |
WO2020193778A1 (en) | 2019-03-28 | 2020-10-01 | Sunrise Sa | System comprising a sensing unit and a device for processing data relating to disturbances that may occur during the sleep of a subject |
IT201900006498A1 (it) * | 2019-05-02 | 2020-11-02 | Giuseppe Rampulla | Apparato per tracciare e registrare i movimenti della mandibola di una persona e relativo metodo |
EP4221812B1 (de) | 2020-10-01 | 2024-03-06 | Sunrise SA | Tragbare vorrichtung zur verminderung der atmungsanstrengung einer schlafenden person |
CN113499152B (zh) * | 2021-05-28 | 2022-08-09 | 南京精益义齿有限公司 | 一种预抵触间隙保持器加工工艺 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1296592A1 (de) * | 2000-06-28 | 2003-04-02 | Denapp Corporation BVI | Verfahren und system zur interoralen echtzeitaufnahme und registrierung von dreidimensionalen messungen und bildern von intraoralen objekten und merkmalen |
DE102006011787A1 (de) * | 2006-03-15 | 2007-09-20 | Rahnenführer, Claus | Vorrichtung und Verfahren zur dreidimensionalen Messung der Kieferstellung |
DE102007058883A1 (de) | 2007-12-05 | 2009-06-10 | Boris Holl | Vorrichtung mit einem Träger für zumindest ein Funktionselement zur Anwendung im intraoralen Bereich |
DE102012104373A1 (de) | 2012-05-21 | 2013-12-05 | Albert Mehl | Verfahren zur Bewegungssimulation von Kiefern und Rekonstruktion mit virtuellem funktionellem Bissregistrat |
-
2016
- 2016-02-25 DE DE102016103320.0A patent/DE102016103320A1/de not_active Ceased
-
2017
- 2017-02-23 WO PCT/EP2017/054162 patent/WO2017144585A1/de active Application Filing
- 2017-02-23 US US16/078,177 patent/US20190021651A1/en not_active Abandoned
- 2017-02-23 JP JP2018544899A patent/JP6682647B2/ja not_active Expired - Fee Related
- 2017-02-23 EP EP17706992.9A patent/EP3419521A1/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1296592A1 (de) * | 2000-06-28 | 2003-04-02 | Denapp Corporation BVI | Verfahren und system zur interoralen echtzeitaufnahme und registrierung von dreidimensionalen messungen und bildern von intraoralen objekten und merkmalen |
DE102006011787A1 (de) * | 2006-03-15 | 2007-09-20 | Rahnenführer, Claus | Vorrichtung und Verfahren zur dreidimensionalen Messung der Kieferstellung |
DE102007058883A1 (de) | 2007-12-05 | 2009-06-10 | Boris Holl | Vorrichtung mit einem Träger für zumindest ein Funktionselement zur Anwendung im intraoralen Bereich |
DE102012104373A1 (de) | 2012-05-21 | 2013-12-05 | Albert Mehl | Verfahren zur Bewegungssimulation von Kiefern und Rekonstruktion mit virtuellem funktionellem Bissregistrat |
Also Published As
Publication number | Publication date |
---|---|
JP2019512290A (ja) | 2019-05-16 |
DE102016103320A1 (de) | 2017-08-31 |
EP3419521A1 (de) | 2019-01-02 |
JP6682647B2 (ja) | 2020-04-15 |
US20190021651A1 (en) | 2019-01-24 |
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