A kind of appliance production method keeping centric relation position
Technical field
The invention belongs to mouth cavity orthodontic technical fields, and in particular to a method of keep centric relation position.Including noninvasive
The digitized applications such as electronics facebow, 3D scanning and area of computer aided printed design.
Background technique
Inspection and treatment, orthodontic treatment and dysfunction of temporomandibular joint of the centric relation position to occlusal reconstruction, conjunction relationship
The inspection and treatment of syndrome etc. are all significant.Although centric relation position has repeatability well, it is accurately positioned
Centric relation position still has many problems, its accuracy is influenced by factors, such as the operating method of patient, patient
Interdependence etc..Precise positioning and centric relation position can be kept just seem more difficult in clinic.
Currently, include Gothic bow graphical method for the localization method of centric relation position, swallow occlusion method, retroflect after lick
Method, function bounce technique, chin area revulsion, bilateral help method, tooth crowding graphical method, myo―monitor method etc..However, existing
Localization method all there is respective limitation, still cannot preferably realize positioning centric relation position, holding is just more difficult to realize.
In recent years, with digitized development, more and more digitizing techniques are applied in clinical oral.Noninvasive electricity
Sub- facebow joint 3D scanning and area of computer aided printed design, Invisible bracketless technique, are precise positioning centric relation
Theoretical basis is established in position.However, there is no holding center to close in clinic at present since precise positioning centric relation position is more difficult
It is the method for position.Therefore, how precisely to determine centric relation position.Centric relation position after how keeping precise positioning.These problems
It is all critical issue urgently to be solved in clinic.
Noninvasive electronics facebow is easy to operate, and can simulate mandibular movement and meshing functionss, is sought by movement repeatedly
Accurately centric relation position is found, while 3D scanner can be directly connected to.Area of computer aided printed design combines 3D and scans skill
Art visualizes virtual thing, we design requirement on computers, then print, and just envisions us
Virtualization object switch to material object.No bracket invisalign becomes a kind of emerging technology on this basis, using based on correct comprehensive
Orthodontic treatment theory and target, not only focus on beautiful teeth, the more stability of emphasis mandibular location, that function closes facial muscles is strong
Health is coordinated.
Summary of the invention
To overcome above-mentioned the deficiencies in the prior art, rescuing for centric relation position is kept the purpose of the present invention is to provide a kind of
Device production method solves precise positioning mandibular centric relation position, and the technology of the centric relation position after precise positioning is kept to ask
Topic, has the characteristics that easy to operate, quick, efficient.
To achieve the above object, the technical solution adopted by the present invention is that: it is a kind of keep centric relation position appliance production
Method, comprising the following steps:
Step 1, the precise positioning of centric relation position
Firstly, scanning maxillary dentition and mandibular dentition using 3D scanner and saving;Then noninvasive electronic surface is worn to patient
Bow, carries out three positions and makees snap-action: intercuspal position, labial teeth counter blade position, left and right sides occlusal position;Repetition does above-mentioned three
Kind occlusion position, electronics facebow automatically records tooth crowding, when electronics facebow is exactly found centric relation position, electronics facebow
It can automatic prompt centric relation position;
Step 2, the centric relation position after precise positioning is kept
After precise positioning centric relation position, keeps motionless in this position, then recycle 3D scanner, above and below previously stored
In denture interface, the occluding relation of scanning patient at this time, at this point, the dental pattern column occluding relation position under obtaining centric relation position,
The result of scanning is uploaded in area of computer aided printed design software;
Step 3, modelling is carried out using 3D printing design software
(referring to Fig. 1) is designed in the denture in 3D printing design software, in mandibular dentition bilateral canine tooth and frist premolar
It is 5mm that adjacent inter-drain, which designs a width, and depth is the half round concave of 4mm, this concave surface is parallel with mandibular dentition;
Designing a width in the adjacent inter-drain of mandibular dentition bilateral frist premolar and the second premolar teeth is 5mm, and depth is the half of 4mm
Circular concave, this concave surface are parallel with mandibular dentition;It is designed in the adjacent inter-drain of the second premolar teeth of mandibular dentition bilateral and first molar
One width is 5mm, and depth is the half round concave of 4mm, this concave surface is parallel with mandibular dentition;
Designing a width in the adjacent inter-drain of mandibular dentition bilateral first molar and second molar is 5mm, and depth is the semicircle of 4mm
Concave surface, this concave surface are parallel with mandibular dentition;
A cylindrical body is designed in the half round concave that maxillary dentition bilateral corresponds to lower jaw, the width of cylindrical body is 4mm, length root
Corresponding length (referring to fig. 2) is designed according to the backteeth distance of patient's centric relation position;
Designing a width in the adjacent inter-drain of maxillary dentition bilateral frist premolar and the second premolar teeth is 4mm, and length is the short of 3mm
Cylindrical body, this cylindrical body are parallel with denture;
Designing a width in the adjacent inter-drain of the second premolar teeth of maxillary dentition bilateral and first molar is 4mm, and length is the short circle of 3mm
Cylinder, this cylindrical body are parallel with denture;
Design width is 4mm on maxillary dentition bilateral first molar and second molar, and length is the short cylinder of 3mm, this cylinder
Body is parallel with denture;
Step 4, model step 3 designed prints, and using the diaphragm of no bracket invisalign, is then printing
Press mold on model utilizes the centric relation position that patient can be kept without bracket invisalign made (referring to Fig. 3,4).
Compared with prior art, the invention has the following beneficial technical effects:
Electronics facebow that the present invention uses positioning centric relation position is noninvasive, simple, quick, accurate and can be with resetting;
The present invention embodies number using 3D scanning, area of computer aided printed design and Invisible bracketless technique completely
Change technology, and make holding centric relation position appliance can bilateral uniform stressed, do not affect the appearance simultaneously, and energy
Reach preferable curative effect.
The method of holding centric relation position of the invention combines noninvasive electronics facebow, 3D is scanned, area of computer aided printing is set
Meter, Invisible bracketless technique, fully achieve the digitlization of correction art treatments, while having easy to operate, quick, high
The characteristics of effect.
The present invention combines no bracket stealth using noninvasive electronics facebow, 3D scanner technology, area of computer aided printed design
Appliance develops a kind of method for keeping centric relation position.So far, it has had not seen and has kept mandibular centric relation position method
Report.
Detailed description of the invention
The lower jaw top view that Fig. 1 designs for 3D printing.
The upper jaw top view that Fig. 2 designs for 3D printing.
Fig. 3 is the side view worn after appliance.
Fig. 4 is the front view worn after rescuing.
Specific embodiment
The present invention provides a kind of simple, efficient appliance production methods for keeping centric relation position, utilize noninvasive electricity
Sub- facebow, 3D scanning technique, area of computer aided printed design and Invisible bracketless technique.
Step 1, the precise positioning of centric relation position
Selection has the recoverability anterior disk displacement patient of clinical symptoms:
A) it is opened and closed the snap of mouth;B) open-type is biased to Ipsilateral before snap occurs, and snap returns to middle line after occurring;C) hinge area has
Tenderness;
Firstly, scanning maxillary dentition and mandibular dentition using 3D scanner and saving;Then noninvasive electronic surface is worn to patient
Bow, carries out three positions and makees snap-action: intercuspal position, labial teeth counter blade position, left and right sides occlusal position;Repetition does above-mentioned three
Kind occlusion position, electronics facebow automatically records tooth crowding, when electronics facebow is exactly found centric relation position, electronics facebow
It can automatic prompt centric relation position;
Step 2, the centric relation position after precise positioning is kept
After precise positioning centric relation position, keeps motionless in this position, then recycle 3D scanner, above and below previously stored
In denture interface, the occluding relation of scanning patient at this time, at this point, the dental pattern column occluding relation position under obtaining centric relation position,
The result of scanning is uploaded in area of computer aided printed design software;
Step 3, modelling is carried out using 3D printing design software
(referring to Fig. 1) is designed in the denture in 3D printing design software, in mandibular dentition bilateral canine tooth and frist premolar
It is 5mm that adjacent inter-drain, which designs a width, and depth is the half round concave of 4mm, this concave surface is parallel with mandibular dentition;
Designing a width in the adjacent inter-drain of mandibular dentition bilateral frist premolar and the second premolar teeth is 5mm, and depth is the half of 4mm
Circular concave, this concave surface are parallel with mandibular dentition;It is designed in the adjacent inter-drain of the second premolar teeth of mandibular dentition bilateral and first molar
One width is 5mm, and depth is the half round concave of 4mm, this concave surface is parallel with mandibular dentition;
Designing a width in the adjacent inter-drain of mandibular dentition bilateral first molar and second molar is 5mm, and depth is the semicircle of 4mm
Concave surface, this concave surface are parallel with mandibular dentition;
A cylindrical body is designed in the half round concave that maxillary dentition bilateral corresponds to lower jaw, the width of cylindrical body is 4mm, length root
Corresponding length (referring to fig. 2) is designed according to the backteeth distance of patient's centric relation position.Such as: when centric relation position, up and down after
The distance of tooth is 3mm, is designed as follows: designing a width in the adjacent inter-drain of maxillary dentition bilateral canine tooth and frist premolar is 4mm,
Length is the short cylinder of 3mm, this cylindrical body is parallel with denture.
Designing a width in the adjacent inter-drain of maxillary dentition bilateral frist premolar and the second premolar teeth is 4mm, length 3mm
Short cylinder, this cylindrical body is parallel with denture;
Designing a width in the adjacent inter-drain of the second premolar teeth of maxillary dentition bilateral and first molar is 4mm, and length is the short circle of 3mm
Cylinder, this cylindrical body are parallel with denture;
Design width is 4mm on maxillary dentition bilateral first molar and second molar, and length is the short cylinder of 3mm, this cylinder
Body is parallel with denture;
Step 4, model step 3 designed prints, and using the diaphragm of no bracket invisalign, is then printing
Press mold on model utilizes the centric relation position that patient can be kept without bracket invisalign made (referring to Fig. 3,4).
The length of upper jaw cylindrical body is according to centric relation position backteeth apart from corresponding adjustment.Center of the adjustment according to positioning
If relationship position determines, centric relation leveling arch 3mm, so upper jaw cylinder length are 3mm;Each patient's centric relation
The degree that position is opened is different, then length it is different, as long as centric relation position of having good positioning, input 3D printing software, as long as upper jaw cylindrical body
Length is matching.