CN107080554A - Remporomandibular joint measuring method, bite plate preparation method - Google Patents
Remporomandibular joint measuring method, bite plate preparation method Download PDFInfo
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Abstract
A kind of remporomandibular joint measuring method, bite plate preparation method, belong to oral medical field.Remporomandibular joint measuring method includes：Obtain patient's oral cavity model；Patients target's image is determined by oral cavity model, and the upper jaw, lower jaw are separated according to target image, so that lower jaw is free.Pass through corona image under the state of different jaws position is overlapping with corresponding corona Image Matching, the free lower jaw of guiding to corresponding jaw position determination remporomandibular joint image.The measuring method that the present invention is provided has low cost, efficiency high, accurate advantage, is conducive to carrying out correction to disorders of temporomandibular joint patient.
Description
Technical field
The present invention relates to oral medical field, prepared in particular to a kind of remporomandibular joint measuring method, bite plate
Method.
Background technology
Remporomandibular joint can abbreviation mandibular joint, be the unique left and right bilateral cooperating joint of Maxillary region, with certain steady
Qualitative and multidirectional activity.Produce with chewing, swallowing, language and express one's feelings etc. relevant various important under action of muscles
Activity.Remporomandibular joint is made up of the mandibular fossa of temporal bone, tuberculum articulare and head of mandible.Loosening of articular capsule, it is anterior weaker, outside
There is ligament reinforcement side.There is the articular disc of ellipse in capsular ligament, articular cavity is separated into upper and lower two parts.Remporomandibular joint belongs to
In articular joint, both sides are moved simultaneously, maxilla can be made above to carry, decline, forward, backward and lateral movement.Due to capsular ligament compared with
Relaxation, when dehiscing excessive, head of mandible is possible to slip forward, causes mandibular dislocation.
Disorders of temporomandibular joint (temporomandibular disorders, TMD) is relatively common in adult, faces
Bed performance is open and close mouthful clicking of joint and pain etc., and x-ray image shows the prominent displacement of condyle or absorbed.It is disorderly for remporomandibular joint
Random patient, orthodontist generally requires to carry out joint analysis, in addition to the analysis on image, generally requires the jaw position of patient
State transfer replication measures analysis on frame to the jaw position on frame, such as prominent displacement (Measures of measurement condyle
Condyle Displacement, MCD), understand offset distance of the left and right remporomandibular joint between CR and CO.
Frame species is a lot.It is broadly divided into simple articulator, average value frame, half adjustable frame, complete adjustable frame.What correction was used is mainly
The complete adjustable frame of measure of precision highest.But such frame somewhat expensive, most of doctor can't afford.And pass through facebow
Jaw bit transition is carried out, is that positioning is operated on soft tissue movable outside, such as nasion, earhole itself have certain mistake
Difference, influence can be produced on last measurement.
The content of the invention
In the first aspect of the present invention there is provided a kind of remporomandibular joint measuring method, to reduce opening for doctor's purchase frame
Branch, it is not required that the complicated operation such as jaw bit transition, upper conjunction frame.Improve the intuitive and accuracy finally measured.
In the second aspect of the present invention there is provided a kind of bite plate preparation method, the efficiency for preparing bite plate can be improved
With the matching degree in oral cavity.
What the present invention was realized in：
A kind of remporomandibular joint measuring method, including：
It is determined that and keeping the CR jaws position and CO jaws position in patient oral cavity to oral cavity model；
Determine the conical beam CT image of patient, the corona image of patient is determined by intraoral scanning, corona includes maxillary teeth
It is preced with the CO jaws under corona image, oral occlusion position under the CR jaws position state under image, lower jaw corona image, oral occlusion position
Position state under corona image, and according to upper jaw corona image, lower jaw corona image separate conical beam CT image in the upper jaw, under
Jaw, so that lower jaw is free；
The first conical beam CT image under CR jaws position and/or the second conical beam CT image under CO jaws position are determined, wherein,
The first lower conical beam CT image of CR jaws position is by by the corona shadow in corona image and conical beam CT image under the state of CR jaws position
Overlapping as matching, the free lower jaw of guiding is determined to CR jaws position, and the second conical beam CT image under CO jaws position is by by CO jaws
Corona image is overlapping with the corona Image Matching in conical beam CT image under state, the free lower jaw of guiding to CO jaws position.
In preferably one example, it is determined that and keeping the CR jaws position in patient oral cavity and the method for CO jaws position to be mushbite.
In preferably one example, scanned by mouth and determine that the method for the corona image of patient includes：Swept using intraoral
Retouch instrument and carry out intraoral scanning.
In preferably one example, conical beam CT image is not connect in maxillary teeth and mandibular teeth in patient oral cavity
Determined in the state of touching.
In preferably one example, make patient oral cavity be in maxillary teeth and mandibular teeth be in not in contact with state
Method includes：Patient oral cavity is opened, then is engaged cotton balls.
In preferably one example, after the first conical beam CT image is obtained, the prominent skew of condyle under measurement CR jaws position
Amount.
In preferably one example, after the second conical beam CT image is obtained, the prominent skew of condyle under measurement CO jaws position
Amount.
In preferably one example, it is determined that under the first conical beam CT image and/or CO jaws position under CR jaws position the
After two conical beam CT images, the offset of measuring target point.
A kind of bite plate preparation method, including：The under CR jaws position is determined according to foregoing remporomandibular joint measuring method
The second conical beam CT image under one conical beam CT image and/or CO jaws position；Bored according to the first conical beam CT image and/or second
Pencil of forms CT images determine and prepare bite plate model.
In preferably one example, the method for preparing bite plate model is 3D printing.
The beneficial effect of such scheme：Remporomandibular joint measuring method combination conical beam CT that the present invention is provided, intraoral sweep
Retouch and image processing measures the method analyzed to replace frame to complete RW remporomandibular joints, so as to reduce equipment purchase cost,
Measurement efficiency and the degree of accuracy are improved simultaneously.What the present invention was also provided a kind of carries out bite plate preparation based on foregoing measuring method
Design of digital.The Design of digital prepared by bite plate, can be carried out pre-designed, it is possible to which carrying out simulation makes to bite plate
Can check the Expected Results that uses in advance with, patient, and can be adjusted and change according to the hobby of patient, it is to be confirmed after
Carry out bite plate making.By foregoing bite plate digitalized design method, manufacturing cycle, the drop of bite plate can be greatly shortened
Low preparation cost.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " on ", " under ", "left", "right", " level ", " interior ",
The orientation or position relationship of instructions such as " outer " are the orientation or position relationship usually put when the invention product is used, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second " etc.
It is only used for distinguishing description, and it is not intended that indicating or implying relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting " should
It is interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body implication.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not direct contact but by it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
In the present invention, in the case of not contradiction or conflict, all embodiments, embodiment and feature of the invention
It can be mutually combined.In the present invention, conventional unit, part etc., both can be commercially available, can also be according to of the invention public
The content self-control opened.In the present invention, in order to protrude emphasis of the invention, to some conventional operations and unit, part
The omission of progress, or be only briefly described.
Embodiment 1
The wrong deformation patients' occluding relation of research and condyle position change, are conducive to patient's research patient Maxillary region development feelings
Condition and architectural feature.Based on this, a kind of remporomandibular joint measuring method is inventors herein proposed.
Remporomandibular joint measuring method comprises the following steps：
Step S101, the CR jaws for determining and keeping patient oral cavity position and CO jaws position are to oral cavity model.
By determining and keeping the CR jaws position and CO jaws position in patient oral cavity, to be measured to oral cavity, for example, scan
And photography.
As a kind of implementation, lead to mushbite (wax) and determine and the CR jaws position of immobilized patients and CO.Pass through occlusion
Record wax is replicated and shifted.For example, the Delar bite waxs folding after 60 DEG C of tepidariums is positioned over into the bilateral upper jaw for bilayer
Tooth, presses bite wax, so as to print off the corresponding marking on bite wax.
It should be noted that the jaw relationship of human oral cavity mainly has following three kinds：
First, centric relation position (Centric Relation, CR)
Centric relation position is also referred to as retruded contact position, is the relation of a kind of maxilla and lower jaw osteomere.CR jaws position is lower jaw
The last position of physiological, it is the essential condition for obtaining this that flesh, which shrinks, and the amplitude size of retrogressing is mainly ligament decision.It is located at
The back lower place of intercuspal position (ICP), horizontal range about 0.5-1.5mm backward, vertical range about 1.0-1.5mm, distance downwards
Size and Orientation depend primarily on backteeth height of cusp.This position since be taken as a long time complete denture rebuild sting
The horizontal level of conjunction relation it is optimal can right position, but modern viewpoint is changed, that is, most preferably can be before right position is RCP
Position at side about 1.0mm.
2nd, rest position
Lower jaw posture finger tip is sat or upright, just not saying talk about, do not swallow, do not chew, the location of lower jaw.Three kinds of bases
In this jaw position, its stability is worst.Also referred to as rest position or rest position.It differs 1.0- with ICP in vertical range
3.0mm, that is to say, that ICP is exactly lower jaw posture plus 1.0-3.0mm in vertical range, cease conjunction in other words
Gap is exactly 1.0-3.0mm, but should be discussed because of people, and mentioned here is average value, and it also has infinite number of positions.
3rd, positive middle position (Centric Occlusion, CO)
When positive middle position is that lower jaw is located at centric relation, the occluding relation of maxillary teeth and lower jaw tooth.Positive middle position is also known as cusp
Interleaved bits, when referring to that lower jaw is in intercusping conjunction occluding relation, position of the lower jaw relative to the upper jaw.Generally, hit exactly
During position, upper cusp and lower tooth nest is relative, or upper tooth nest is relative with lower cusp, and when reaching most extensive, most close contact relation
Scuffing.It is the optimum position that complete denture rebuilds occluding relation.All oral restoration workers are finding this
Position.Be that lower jaw posture subtracts 1.0-3.0mm to be exactly in vertical positional relationship in ICP, horizontal level relation it is exactly that RCP is subtracted
0.5-1.5mm is exactly ICP.
Step S102, the conical beam CT image for determining patient, the corona image by intraoral scanning determination patient, oral cavity shadow
Stung as including corona image, oral cavity under the CR jaws position state under upper jaw corona image, lower jaw corona image, oral occlusion position
Corona image under the CO jaws position state under position is closed, and conical beam CT shadow is separated according to upper jaw corona image, lower jaw corona image
The upper jaw, lower jaw as in, so that lower jaw is free.
As a kind of implementation, corona and occlusal position are scanned by intraoral scanner.Intraoral scanner example
Such as can be the intraoral scanners of 3-shape (trios digitizes intraoral scanner).By using intraoral scanner to patient oral cavity
It is scanned, to obtain the corona image of independent maxillary teeth, and the individually corona image of lower jaw tooth.Meanwhile, in occlusal position
Under, the corona picture under corona picture and CO jaws position under the CR jaws position obtained by scanning.Wherein, the exposed part of tooth claims
For corona.The three-dimensional modeling data of the intraoral corona of patient can be obtained using intraoral scanner, so as to obtain patient's corona etc.
Detailed data, to carry out follow-up processing.
When shooting pencil-beam image, make patient oral cavity be in maxillary teeth and mandibular teeth not in contact with state, in order to
Reduce the interference between maxillary teeth and lower jaw tooth and influence each other, the upper jaw is separated with lower jaw so as to be easy to successive image processing,
To reach the purpose for preferably making lower jaw free, while improving the degree of accuracy that the upper jaw is separated with lower jaw.
Make patient oral cavity be in maxillary teeth and mandibular teeth be in not in contact with the method for state for example can be to make trouble
Person opens in oral cavity, then is engaged cotton balls.
It is preferred that the intraoral corona image of patient is shot from all angles, can be on the whole by the corona image
The concrete condition of the intraoral corona of patient is solved, provides and more enriches and accurate Back ground Information for follow-up measurement.For example, being clapped from front
Take the photograph hat image when the upper lower jaw of patient is engaged, shot from the positive corona image shot when the upper lower jaw of patient is separated, from left surface
Corona image during the occlusion of patient's upper lower jaw, corona image when shooting from right flank the upper lower jaw occlusion of patient, from front face upward bat
The corona image of patient's facies maxillaris, take a crane shot the mandibulofacial corona image of patient from front.
The upper jaw, lower jaw in upper jaw corona image, lower jaw corona image separation conical beam CT image, so that lower jaw is swum
From that can be realized by the three-dimensional software of medical image, for example, Mimics17, Analyze12.0 etc..Wherein, conical beam CT is
Refer to cone beam CT, abbreviation CBCT.It has imaging high precision and information richness, low-activity and cheap etc.
Advantage.
It should be noted that according to upper jaw corona image, lower jaw corona image separate conical beam CT image in the upper jaw,
Lower jaw is so that in the free step of lower jaw, and described to make lower jaw free be to instigate whole lower jaw to dissociate.Wherein, whole lower jaw includes
Condyle is dashed forward.
Step S103, the second conical beam CT figure determined under the first lower conical beam CT image of CR jaws position and/or CO jaws
Picture.
Wherein, the first lower conical beam CT image of CR jaws position is by by corona image and conical beam CT shadow under the state of CR jaws position
Corona Image Matching as in is overlapping, and the free lower jaw of guiding is determined to CR jaws position.For example, the three-dimensional software for passing through medical image
Realize, for example, Mimics, Analyze12.0 etc..The first conical beam CT image under CR jaws position is also patient under CR
Remporomandibular joint image.
Wherein, the second lower conical beam CT image of CO jaws position is by by corona image and conical beam CT shadow under the state of CO jaws position
Corona Image Matching as in is overlapping, the free lower jaw of guiding to CO jaws position.For example, real by the three-dimensional software of medical image
It is existing, for example, Mimics, Analyze12.0 etc..The 3-D view obtained by 3 d medical images software can reflect oral cavity Wai Zui
Position relationship of lip and tooth etc..
Facebow instead of using foregoing corona Image Matching overlapping (for example, 3 D medical software carries out image procossing)
Transfer and upper jaw frame, complete jaw bit transition.
Due to above-mentioned CR positions CBCT images (the first conical beam CT image), CO CBCT images (the second conical beam CT figures
Picture) it is all based on obtaining under the same coordinate system of CBCT images, it therefore, it can be based on the first conical beam CT image, the second taper
Beam CT images are measured, to obtain various target measurement parameters.
As the first optional scheme, after the first conical beam CT image is obtained, the condyle under measurement CR jaws position is prominent inclined
Shifting amount (MCD).
As second of optional scheme, after the second conical beam CT image is obtained, the condyle under measurement CO jaws position is prominent inclined
Shifting amount (MCD).
It is understood that it is determined that the second taper under the first conical beam CT image and/or CO jaws position under CR jaws position
After beam CT images, the first conical beam CT image, the offset of the second conical beam CT image measurement target point are also based on.
The remporomandibular joint measuring method that the present invention is provided can be used for the three-dimensional digital method that RW is analyzed.That is, mouth is passed through
It is interior scanning with CBCT scanning corona image matched, to obtain at CO, CR, mandibular relative to maxilla position,
And then the virtual joint of progress and bite analysis.
Test example 1
CBCT scannings (voxel size 0.3mm) and the intraoral laser scannings of the 3-shape (μ of precision 20 are carried out to 16 volunteers
m).During scanning, volunteer is in the intercuspal position of wax fixation.Using Mimics17 software three-dimensional reconstruction skulls, with Stl lattice
Formula imports Geomagic control softwares, using the dividing function of Geomagic control softwares with the complete jaw that dissociates
Bony structure, and upset its spatial relation (keeping upper jaw locus constant) with the upper jaw, recycle Geomagic
The corona image that the surface registration function of control softwares obtains the corona image obtained by CBCT and intraoral laser scanning is carried out
Registration, obtains the maxilla and mandibular position relationship under new intercuspal position.Experiment is respectively by two different operators
Respectively repeat 2 times.
Using the free preceding image of the variance analysis inspection of tools and images after registration outside the prominent front-back of bilateral condyle, left and right ascending branch
Sideways, before chin portion, the surface error distance of the labial surface of lower labial teeth and lower rear facies buccalis dentis.Analytical structure shows, schemes before dissociating
As with images after registration bilateral condyle dash forward front-back, left and right ascending branch lateral surface, before chin portion, the labial surface of lower labial teeth and lower backteeth
The surface error distance of buccal surface is 0.107~0.215mm, respectively less than body rope size (0.3mm), meets and requires.
Based on foregoing remporomandibular joint measuring method, present invention also offers a kind of bite plate preparation method.Specifically, lead to
Cross remporomandibular joint measuring method and determine the first conical beam CT image of patient, the second conical beam CT image, then utilize medical science
The three-dimensional software design bite plate model of image.Foregoing bite plate model can pass through the mode systems such as injection, 3D printing
Make.By the bite plate model after polishing, it can be used for patient and wear, to reach the effect for the treatment of.
Wherein, bite plate model can be RW pads.The bite plate model of making can be used for loosening masseter, and guiding condyle is dashed forward
To settling position, so as to realize correction, rescue purpose.
As a kind of optional implementation, bite plate includes being in substantially horseshoe-shaped body, and body can use medical
Silica gel, PS resins are made.Body, which is provided with, to cave inward, face of the depression with the upper denture of parcel patient.Body have with
The relative plane of depression, plane is contacted with the uniform point of the function point of mandibular teeth.
Wherein, depression is provided with the upside of body, and corresponds respectively to the upper jaw.Wherein, the three-dimensional configuration in face and trouble
Person's facing form fit, and face limits foregoing depression.In a state of use, sky is left between the face of bite plate and patient's facing
Gap.Binding agent is filled with space, and maintenance is bonded by binding agent and patient's facing.Wherein, binding agent can be glass from
Sub- binding agent.The width (spacing) in gap for example can be 0.1mm or 0.2mm.
The depression of body has a parcel depth, and face is located at portion envelops patient's facing in foregoing parcel depth.
It for example can be 1mm or 2mm to wrap up depth.
The remporomandibular joint measuring method that the present invention is provided, with reference to CBCT, intraoral scanner and 3 D medical software, generation
Frame has been replaced to reach the measurement analysis of RW remporomandibular joints.Compared to existing correction, rescue during, (especially entirely may be used using frame
Adjust frame) sky high cost, the measuring method that provides of the present invention can substantially reduce measurement and analysis cost.In addition, it is existing just
It is abnormal, rescue during more than be related to utilize facebow carry out jaw bit transition.However, carrying out jaw bit transition simply in people using facebow
The external upper operation positioning of the movable soft tissue in face --- such as nasion, earhole ---, there is necessarily error in itself, to last
Measurement can have adverse effect on.
At present, general large hospital is equipped with CBCT and intraoral spatial digitizer, therefore, the measuring method that the present invention is provided
Need not be using complicated equipment, doctor eliminates the spending of purchase frame, it is not required that the complicated behaviour such as jaw bit transition, upper conjunction frame
Make, while improving the intuitive and accuracy finally measured.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of remporomandibular joint measuring method, it is characterised in that including：
It is determined that and keeping the CR jaws position and CO jaws position in patient oral cavity；
Determine the conical beam CT image of patient, the corona image of patient is determined by intraoral scanning, the corona image includes upper
Under CR jaws position state under jaw corona image, lower jaw corona image, oral occlusion position under corona image, oral occlusion position
Corona image under the state of CO jaws position, and the conical beam CT is separated according to the upper jaw corona image, the lower jaw corona image
The upper jaw, lower jaw in image, so that lower jaw is free；
The first conical beam CT image under CR jaws position and/or the second conical beam CT image under CO jaws position are determined, wherein, the CR
The first conical beam CT image under jaw position passes through in corona image and the conical beam CT image under the state of CR jaws position
Corona Image Matching is overlapping, and the free lower jaw of guiding is determined to CR jaws position, and the second conical beam CT image under the CO jaws position leads to
Cross that corona image under the state of CO jaws position is overlapping with the corona Image Matching in the conical beam CT image, what guiding dissociated
Lower jaw is to CO jaws position.
2. remporomandibular joint measuring method according to claim 1, it is characterised in that it is determined that and keeping the CR in patient oral cavity
The method of jaw position and CO jaws position is mushbite.
3. remporomandibular joint measuring method according to claim 1, it is characterised in that determine patient's by intraoral scanning
The method of corona image includes：Intraoral scanning is carried out using intraoral scanner.
4. remporomandibular joint measuring method according to claim 1, it is characterised in that the conical beam CT image is to suffer from
Person oral cavity is determined in maxillary teeth and mandibular teeth not in contact with the state of.
5. remporomandibular joint measuring method according to claim 4, it is characterised in that make patient oral cavity be in maxillary teeth
With mandibular teeth be in not in contact with the method for state include：Patient oral cavity is opened, then is engaged cotton balls.
6. remporomandibular joint measuring method according to any one of claim 1 to 5, it is characterised in that obtaining described
After first conical beam CT image, the prominent offset of condyle under measurement CR jaws position.
7. remporomandibular joint measuring method according to any one of claim 1 to 5, it is characterised in that obtaining described
After second conical beam CT image, the prominent offset of condyle under measurement CO jaws position.
8. remporomandibular joint measuring method according to claim 1, it is characterised in that it is determined that first under CR jaws position bores
After the second conical beam CT image under pencil of forms CT images and/or CO jaws position, the offset of measuring target point.
9. a kind of bite plate preparation method, it is characterised in that including：
Remporomandibular joint measuring method according to any one of claim 1 to 8 determines the first pencil-beam under CR jaws position
The second conical beam CT image under CT images and/or CO jaws position；
Determined according to the first conical beam CT image and/or the second conical beam CT image and prepare bite plate model.
10. bite plate preparation method according to claim 9, it is characterised in that the method for preparing the bite plate model
For 3D printing.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108056829A (en) * | 2017-10-19 | 2018-05-22 | 该美生物科技（上海）有限公司 | A kind of method for being used to that tooth to be promoted to reposition dental treatment |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2496399Y (en) * | 2001-10-07 | 2002-06-26 | 青岛大学医学院附属医院 | Dental film measurement fixing cradle for oral photography |
| CN1642483A (en) * | 2002-04-04 | 2005-07-20 | 株式会社日立医药 | Tomograph |
| WO2010089693A1 (en) * | 2009-02-05 | 2010-08-12 | Cavendish Imaging | An alignment device for dental cone beam computed tomography |
| CN104382661A (en) * | 2014-11-25 | 2015-03-04 | 深圳市康泰健牙科器材有限公司 | Manufacturing method and system of digitized 3D implanting guide plate |
| US20160378883A1 (en) * | 2015-06-24 | 2016-12-29 | Kelly Lucas | Systems and methods for producing anterior guidance package (agp) equipped splint |
| CN106327535A (en) * | 2016-08-16 | 2017-01-11 | 苏州迪凯尔医疗科技有限公司 | CBCT tooth root and intraoral scanning dental crown fusion method |
| CN110022792A (en) * | 2016-12-06 | 2019-07-16 | 西诺德牙科设备有限公司 | Method for detecting the movement of remporomandibular joint |
-
2017
- 2017-05-17 CN CN201710351726.3A patent/CN107080554B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2496399Y (en) * | 2001-10-07 | 2002-06-26 | 青岛大学医学院附属医院 | Dental film measurement fixing cradle for oral photography |
| CN1642483A (en) * | 2002-04-04 | 2005-07-20 | 株式会社日立医药 | Tomograph |
| WO2010089693A1 (en) * | 2009-02-05 | 2010-08-12 | Cavendish Imaging | An alignment device for dental cone beam computed tomography |
| CN104382661A (en) * | 2014-11-25 | 2015-03-04 | 深圳市康泰健牙科器材有限公司 | Manufacturing method and system of digitized 3D implanting guide plate |
| US20160378883A1 (en) * | 2015-06-24 | 2016-12-29 | Kelly Lucas | Systems and methods for producing anterior guidance package (agp) equipped splint |
| CN106327535A (en) * | 2016-08-16 | 2017-01-11 | 苏州迪凯尔医疗科技有限公司 | CBCT tooth root and intraoral scanning dental crown fusion method |
| CN110022792A (en) * | 2016-12-06 | 2019-07-16 | 西诺德牙科设备有限公司 | Method for detecting the movement of remporomandibular joint |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108056829A (en) * | 2017-10-19 | 2018-05-22 | 该美生物科技（上海）有限公司 | A kind of method for being used to that tooth to be promoted to reposition dental treatment |
| CN109394360A (en) * | 2018-11-05 | 2019-03-01 | 北京为开数字科技有限公司 | The production method and gum locator of gum locator |
| CN109394360B (en) * | 2018-11-05 | 2021-07-23 | 北京为开数字科技有限公司 | Manufacturing method of teethridge positioner and teethridge positioner |
| CN109481067A (en) * | 2018-12-24 | 2019-03-19 | 中国人民解放军总医院 | The biteplate and preparation method thereof of the treatment temporomandibular joint disorcler TMP of 3D printing |
| CN110147647A (en) * | 2019-06-15 | 2019-08-20 | 广西科技大学 | Tooth jawbone 3-dimensional digital modeling method based on remporomandibular joint stability |
| CN110147647B (en) * | 2019-06-15 | 2023-06-20 | 广西科技大学 | Dental bone three-dimensional digital modeling method based on temporomandibular joint stability |
| CN110368110B (en) * | 2019-08-14 | 2021-02-12 | 中国人民解放军第四军医大学 | Method for manufacturing appliance for keeping median relation position |
| CN110368110A (en) * | 2019-08-14 | 2019-10-25 | 中国人民解放军第四军医大学 | A kind of appliance production method keeping centric relation position |
| CN111658257A (en) * | 2020-05-28 | 2020-09-15 | 北京为开数字科技有限公司 | Manufacturing method of digital guiding stable pad and stable pad |
| CN112155777A (en) * | 2020-09-04 | 2021-01-01 | 北京大学口腔医学院 | Bionic reconstruction method for space pose of tooth in occlusion function state |
| CN112022384A (en) * | 2020-09-04 | 2020-12-04 | 上海交通大学医学院附属第九人民医院 | Digital resin plate based on CAD/CAM, preparation method and application |
| CN114099019A (en) * | 2021-11-24 | 2022-03-01 | 四川大学 | Occlusion pad for maintaining mandible position and manufacturing method and application thereof |
| CN114099019B (en) * | 2021-11-24 | 2022-07-29 | 四川大学 | Occlusion pad for maintaining mandible position and manufacturing method and application thereof |
| CN114998396A (en) * | 2022-05-20 | 2022-09-02 | 上海博恩登特科技有限公司 | Method for acquiring temporomandibular joint movement parameters based on CBCT (cone beam computed tomography) and digital dental model |
| CN117796936A (en) * | 2024-03-01 | 2024-04-02 | 四川大学 | Manufacturing method of serial repositioning biting plates guided by full-digital technology |
| CN117796936B (en) * | 2024-03-01 | 2024-04-30 | 四川大学 | Manufacturing method of serial repositioning biting plates guided by full-digital technology |
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