CN204207868U - Correction micro screw implantation guide plate - Google Patents
Correction micro screw implantation guide plate Download PDFInfo
- Publication number
- CN204207868U CN204207868U CN201420591211.2U CN201420591211U CN204207868U CN 204207868 U CN204207868 U CN 204207868U CN 201420591211 U CN201420591211 U CN 201420591211U CN 204207868 U CN204207868 U CN 204207868U
- Authority
- CN
- China
- Prior art keywords
- micro screw
- guide plate
- correction
- correction micro
- diameter
- 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.)
- Active
Links
- 238000012937 correction Methods 0.000 title claims abstract description 100
- 238000002513 implantation Methods 0.000 title claims abstract description 81
- 210000004877 mucosa Anatomy 0.000 claims abstract description 40
- 239000007943 implant Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000013461 design Methods 0.000 abstract description 40
- 238000000034 method Methods 0.000 abstract description 25
- 238000012423 maintenance Methods 0.000 abstract description 22
- 230000008569 process Effects 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 description 20
- 238000007408 cone-beam computed tomography Methods 0.000 description 16
- 230000005855 radiation Effects 0.000 description 16
- 210000000988 bone and bone Anatomy 0.000 description 14
- 210000003128 head Anatomy 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 7
- 210000001847 jaw Anatomy 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 210000003254 palate Anatomy 0.000 description 5
- 230000035807 sensation Effects 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 210000001519 tissue Anatomy 0.000 description 5
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 4
- 238000002591 computed tomography Methods 0.000 description 3
- 230000001054 cortical effect Effects 0.000 description 3
- 238000012938 design process Methods 0.000 description 3
- 210000000214 mouth Anatomy 0.000 description 3
- 239000011505 plaster Substances 0.000 description 3
- 210000004872 soft tissue Anatomy 0.000 description 3
- 244000187785 Eucalyptus alba Species 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 2
- 230000000680 avirulence Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011960 computer-aided design Methods 0.000 description 2
- 210000004513 dentition Anatomy 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 206010020718 hyperplasia Diseases 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 210000004086 maxillary sinus Anatomy 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 210000001909 alveolar process Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004053 dental implant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 210000002698 mandibular nerve Anatomy 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000002200 mouth mucosa Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a kind of correction micro screw implantation guide plate, comprising: guide portion, connecting portion and retainer, guide plate is integrated; Guide portion is a hollow cylinder, and its hollow parts is the passage of the end cuff guiding crewdriver attachment, and the diameter of hollow parts is greater than the diameter of end cuff, and crewdriver attachment is used for carrying correction micro screw; Guide portion is provided with buffer distance towards between one end and alveolar mucosa of alveolar mucosa; Retainer, is fixed on the side of guide portion by connecting portion, retainer is wrapped in conjunction side and the occlusal surface of an adjacent teeth axial plane height of contour of correction micro screw implant site.Guide plate configuration design is more conducive to the implantation of correction micro screw, and retainer utilizes the axial plane of adjacent teeth to combine maintenance with occlusal surface, and maintenance is sufficient; Design buffer distance between guide portion and implant site mucosa, make to guide more abundant, intuitively can see implantation process, and implanted back guide and can dislocate smoothly.
Description
Technical field
This utility model relates to orthodontic field, particularly relates to a kind of correction micro screw implantation guide plate.
Background technology
Interim bone anchorage device (Temporary Anchorage Devices, referred to as TADs) is placed in bone or the absolute anchorage device for orthodontic treatment of bone surface.Compared with traditional anchorage device, TADs has does not need the advantages such as patient compliance.Microfiltration concentrated broth is relative to other bone implant anchorages, and size is less, have easy and simple to handle, damage little, that price is lower advantage, be a class anchorage implant the most frequently used at present.Utilize its energy correcting correction intractable case, the indication of expansion orthodontic treatment.But the problems such as the dental implants stability reduction that root of the tooth damage, implantation body contact with root of the tooth and cause in the implantation of micro screw, are found repeatedly.
In recent years, in conjunction with CT, rapid shaping (Rapid Prototyping, referred to as RP)/standard becomes three-corner code (Standard Triangulated Language, referred to as STL) etc. the computer-aided design of technology and area of computer aided make (Computer Aided Design and Computer Assisted Manufacture, referred to as CAD-CAM) technology has been applied to the designing and making of the implantation guide plate of prosthetic implantation body, this type of the system that designs and produces has a lot, as Simplant (materialise dental, Belguim), Nobel Guide (Nobel Biocare, USA), Implant Master (I-Dent Imaging, USA) etc.
In order to increase the accuracy that micro screw is implanted, there is the method utilizing said system to carry out the design and fabrication of correction micro screw implantation guide plate at present.But prosthetic implantation body and correction micro screw all there are differences implanting in object, implant site, formalness etc.Prosthetic implantation body is mainly in order to carry repair to denture, and implant edentulous region, the application target of guide plate guarantees that implantation body bears gmatjpdumamics effectively, and avoid the structure such as maxillary sinus, inferior alveolar nerve pipe; Correction micro screw mainly provides anchorage for mobile tooth, and modal implantation region is the interalveolar septum of cheek palate side, and the application target of guide plate avoids touching the structure such as root of the tooth and maxillary sinus when implanting micro screw.Implant site difference determines its maintenance and dislocation mode is different.The guide plate of prosthetic implantation body has bone support, mucosa support and dental branches to hold several, and the implantation guide plate of correction micro screw is tooth-borne type or tooth mucosa mixing support, the guide plate that the mixing of tooth mucosa is supported need by the CBCT image comprising root of the tooth three-dimensional information with comprise the high denture of precision, the tooth of mucosa information closes laser scanning surface image and carries out registration, registration accuracy can affect the implantation precision of the micro screw that guide plate mediates.Further, prosthetic implantation body mainly implants along alveolar ridge gum direction, and what guide plate mainly guided is the boring of boring in advance, instead of the implantation of implantation body, and implantation body can not exist the problem of guide plate dislocation after implanting; And the modal implantation region of correction micro screw is the interalveolar septum of cheek palate side, what guide plate guided is piercing voluntarily of micro screw, and after micro screw is implanted, its head exposure, outside the cheek palate side oral mucosa of implantation region, hinders guide plate to dislocate from ridge gum direction.In addition, said system only comprises the virtual three-dimensional information of prosthetic implantation body, and prosthetic implantation body mostly is the larger column of diameter; And correction micro screw diameter is less, mostly be taper, represent correction micro screw by existing implantation body three-dimensional data, error is larger.To sum up, existing finished product commercialization prosthetic implantation body implantation guide plate manufacturing system is utilized to carry out the implantation of correction micro screw perfect not.
At present, also exist and utilize relevant a series of images process and design software designed, designed and laser fast shaping goes out the method for guide plate, this method has used for reference the manufacturing process that prosthetic implantation body implants guide plate, image acquisition and design process complexity, need multiple 3-D view process software, and abundant maintenance and booting problem that correction micro screw implants guide plate could not be solved very well.
Below two kinds of manufacturing process based on the CAD-CAM correction micro screw implantation guide plate of CT image are introduced respectively.
1, by means of radiation guide plate, secondary CT technology and three-dimensional reconstruction, the Boolean calculation of software is utilized to realize the virtual design of guide plate, stereo-lithography technology (Stereo Lithography Apparatus, referred to as SLA) is utilized to realize the making of guide plate.Its structural representation as shown in Figure 1, this guide plate in use, implant duct 1 and aim at correction micro screw implant site, be close to alveolar mucosa, retainer 2 is enclosed within several teeth near implant site, wherein contact surface 21 contacts with the occlusal surface of these several teeth, and retainer 2 does not extend to tongue side, needs the gmatjpdumamics by means of upper lower tooth just can realize maintenance.Concrete manufacturing process is as follows:
(1) radiation guide plate is made: alginate impression material delivery, perfusion plaster model; Press mold on plaster model, forms the template (template having radiation index point) of radiation guide plate; Patient wears into template, and takes CT; The independent scanning computed tomography of image guide.
(2) CT data three-dimensional is rebuild: take different threshold value to reconstruct tooth, jawbone, radiation guide plate, radiation index point respectively.
(3) guide plate registration is radiated: jawbone model and radiation guide plate model are registered on position relationship that patient wears after radiation guide plate.
(4) virtual design micro screw position: utilize the cylinder that the cad tools of Mimics software virtual placement diameter is identical with micro screw, adjusts the position of virtual micro screw and implants direction.
(5) CAD of guide plate makes: in Mimics software, utilize cad tools, choose virtual micro screw, with the axis of virtual micro screw for axle generates cylinder coaxial with it, wherein generates two cylinders that diameter is 5.05mm and 6.05mm.Diameter is that the cylinder of 6.05mm carries out subtracting each other Boolean calculation with radiation guide plate, the cylinder of Boolean calculation templum side carries out being added Boolean calculation with radiation guide plate threedimensional model, the basis of radiation guide plate with the addition of cheek side guide frame, then be that the cylinder of 5.05mm carries out subtracting each other Boolean calculation with diameter, form the pore passage structure implanted, guide plate design completes substantially, along duct and implantable micro screw to virtual location.Data derive with STL form, after carrying out fairing and finishing, add complete design after supporting in input Magics.
(6) CAM of guide plate makes: the STL data file derived by Magics imports in rapid prototyping system carries out rapid shaping making.Try on plaster model after part SLA machines, and cemented in by metal cuff in implantation duct, guide plate makes complete.
There is following problem in above-mentioned manufacturing process:
The design of a, guide plate need utilize the three-dimensional reconstruction of spiral CT scans, has larger radiological dose, have certain influence to patient health during CT shooting, and the price of CT shooting is simultaneously relatively high.Adopt external markers overlay registration, make guide plate making step complicated, and patient may accept secondary radiation.
B, image procossing and guide plate processing technology are comparatively complicated, and manufacturing cost is relatively high.
The path of insertion difference of c, guide plate determines the form difference of guide plate.Micro screw implant after the height of the outer micro screw of mucosa be more than 2mm, after having implanted, guide plate cannot at jaw to removal, need at cheek to taking off.Which dictates that guide plate can not extend to tongue side, the left and right sides of guide plate needs to be separated, and then ensures to implant taking off smoothly of micro screw back guide.The profile of guide plate determines the maintenance mode difference of guide plate, and micro screw guide plate is without the mutual restriction maintenance of left and right sides, and therefore guide plate retention is relatively little, and micro screw guide plate need provide maintenance by means of gmatjpdumamics, the stability of guide plate when ensureing that micro screw is implanted.
D, correction micro screw diameter are less, mostly are taper, place the diameter cylinder identical with micro screw and represent micro screw, can not accurately embody micro screw in bone with the position relationship of adjacent root of the tooth.
2, the structural representation of another kind of guide plate as shown in Figure 2, and guide tunnel 3 is designed to " C " shape, i.e. half-packaging, and retainer 4 is two ring-types, is enclosed within the cheek-tongue side of implant site both sides adjacent teeth.Concrete manufacturing process is as follows:
(1) CT data three-dimensional is rebuild: patient carries out CT scan, and after CT work station carries out secondary stratification, obtain one group of CT view data of thickness 0.2mm, Mimics software sets up tooth separation three-dimension model and cortical bone threedimensional model respectively.
(2) surfacer software matching three-D profile: by two model combinations, be input in surfacer software by CTM module with STL data.STL data are after surfacer software reads in, the 3-D view rebuild can be directly observed at display platform, the pretreatment of cloud data must be done: row's impurity point before reconstruction, again cloud data is carried out interrupting layering, a cloud is divided into thin layer one by one, simulate fault sealing curve by each thin layer and by these curves in direction vector unification, these curve fittings can be gone out curved surface, forming three-D profile curved surface.
(3) guide plate three dimensional design: utilize cylinder that surfacer software virtual intended diameter is 2.0mm to represent micro screw, the position of design micro screw and direction, make micro screw be positioned over appropriate position.Surfacer software template is utilized to design maintenance and guide tunnel two parts.According to micro screw position and Design guidance tunnel, direction, make the direction of the two accurately consistent.The profile of guide tunnel is designed to " C " shape, and internal diameter is 3mm, and length is 9mm, and the overall diameter that its internal diameter and micro screw implant the metal cuff of handle end is fitted.Retaining portions adopts the surface data of adjacent seed district corona labial surface and palate side, thickens 1mm and forms retention plate.
(4) guide plate molding: by the STL data input LPS 600A laser fast shaping machine system designed, make guide plate.
There is following problem in above-mentioned the second manufacturing process:
A, CT radiation by force, costly.
B, because the cusp part of rebuilding exists data defect, so avoid cusp district data, to be close to tooth lip, palate side data as fixing wing plate, maintenance can be caused not enough; Guide tunnel is " C " shape, guides insufficient.
The design of c, guide plate need two softwares to combine, relative complex.
Be that the laminating of zero distance designs between the guide portion of d, guide plate and mucosa, and design process does not add the information of mucosa, the easy like this interference that there is mucosa soft tissue, especially can affect guide plate correctly in place when mucosal hyperplasia, thus affects the accuracy of guide plate guiding.
E, correction micro screw diameter are less, mostly are taper, place the diameter cylinder identical with micro screw and represent micro screw, can not accurately embody micro screw in bone with the position relationship of adjacent root of the tooth.
In addition, for above-mentioned two kinds of guide plates design, conveniently guide plate dislocation, guide plate is not extended to tongue side by the first, is divided into left and right two parts, and after micro screw is implanted, two parts are separated dislocation, the second only utilizes cheek-tongue side maintenance, and retainer maintenance is not enough.Further, the first guide plate Design guidance portion and mucosa are close to, and can not observe implantation process, guide portion is designed to half-packaging by the second, and two kinds of guide plate designs all likely to the complete guiding of implantation process, can not exist and guide not enough shortcoming.
Utility model content
This utility model provides a kind of correction micro screw implantation guide plate, with at least solve existing correction micro screw implantation guide plate exist guide not enough, the insufficient and problem of complex manufacturing process of maintenance.
This utility model provides a kind of correction micro screw implantation guide plate, and comprising: guide portion, connecting portion and retainer, described guide plate is integrated; Described guide portion is a hollow cylinder, and its hollow parts is the passage of the end cuff guiding crewdriver attachment, and the diameter of described hollow parts is greater than the diameter of described end cuff, and described crewdriver attachment is used for carrying correction micro screw; Described guide portion is provided with buffer distance towards between one end and described alveolar mucosa of alveolar mucosa; Described retainer, is fixed on the side of described guide portion by described connecting portion, described retainer is wrapped in conjunction side and the occlusal surface of an adjacent teeth axial plane height of contour of described correction micro screw implant site.
In one embodiment, the length of the height of head≤described buffer distance≤described end cuff of described correction micro screw, and the length of correction micro screw described in the height of described guide portion+described buffer distance >.
In one embodiment, the diameter of described hollow parts is than large 0.2 to 0.5 millimeter of the diameter of described end cuff.
In one embodiment, larger than internal diameter 1 to 3 millimeter of the external diameter of described guide portion.
In one embodiment, the thickness of described retainer is 1 to 4 millimeter.
In one embodiment, described guide plate uses photocurable resin material.
By correction micro screw implantation guide plate of the present utility model, guide plate configuration design is more conducive to the implantation of correction micro screw, and retainer utilizes the axial plane of adjacent teeth to combine maintenance with occlusal surface, and maintenance is sufficient; Design buffer distance between guide portion and implant site mucosa, make to guide more abundant, intuitively can see implantation process, and implanted back guide and can dislocate smoothly.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining this utility model, is not formed restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation one of the correction micro screw implantation guide plate of prior art;
Fig. 2 is the structural representation two of the correction micro screw implantation guide plate of prior art;
Fig. 3 is the structural representation (front view) of the correction micro screw implantation guide plate of this utility model embodiment;
Fig. 4 is the structural representation (left view) of the correction micro screw implantation guide plate of this utility model embodiment;
Fig. 5 is the flow chart of the manufacture method of the correction micro screw implantation guide plate of this utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection domain of the present utility model.
This utility model embodiment provides a kind of correction micro screw implantation guide plate, and as shown in Figure 3 and Figure 4, this correction micro screw implantation guide plate comprises: guide portion 10, connecting portion 20 and retainer 30, and guide plate is integrated;
Guide portion 10, it is a hollow cylinder, its hollow parts is the passage of the end cuff 40 guiding crewdriver attachment, the diameter of hollow parts is greater than the diameter of the end cuff 40 of crewdriver attachment, and crewdriver attachment is used for carrying correction micro screw 50 (correction micro screw 50 comprises head 51 and body 52); Guide portion 10 is provided with buffer distance A towards between one end and alveolar mucosa 60 of alveolar mucosa 60;
Retainer 30, is fixed on the side of guide portion 10 by connecting portion 20, retainer 30 is wrapped in conjunction side and the occlusal surface of an adjacent teeth axial plane height of contour of correction micro screw 50 implant site.
By the correction micro screw implantation guide plate of the present embodiment, retainer 30 utilizes the occlusal surface of tooth, makes retainer 30 and the occlusal surface of adjacent teeth and the cheek lingual surface tabling of height of contour conjunction side, makes maintenance more sufficient.Guide portion 10 is implant the large pipe (i.e. hollow cylinder) of bar (i.e. screwdriver) diameter than the tubulose carrying correction micro screw 50, pipe and cheek-tongue side implantation region (its surface is alveolar mucosa 60) keep certain distance (i.e. buffer distance), the design of buffer distance not only ensures that correction micro screw 50 is implanted back guide and can be dislocated smoothly, and intuitively can see that in implantation correction micro screw 50 screws in the process of implantation region, the mucosa being easy under avoiding blind brill occur is piled up.And, correction micro screw 50 is implanted and is guided mainly guide plate guide portion 10 to the guiding of barrel portion of implantation bar maximum gauge of carrying correction micro screw 50, when guide portion 10 length of guide plate is identical, this kind of space to be preserved design makes guide portion more run through correction micro screw 50 implantation all the time to the guiding of implanting bar.In addition, this design of not fitting with mucosa makes guide plate rely on merely dental branches to hold, do not need the three-dimensional information of mucosa, only utilize can comprise tooth, root of the tooth, jawbone three-dimensional information CBCT information just can complete designing and producing of guide plate, not needing CBCT 3-D view and tooth to close the overlay registration of laser scanning surface 3-D view, avoiding registration error to guiding the impact of implanting degree of accuracy.
In Fig. 4, be that under mucosa in alveolar bone, right side is outside mucosa on the left of alveolar mucosa 60.
In one embodiment, as shown in Figure 4, buffer distance A meets the following conditions: the length C of the height E≤buffer distance A≤crewdriver attachment end cuff 40 of the head 51 of correction micro screw, and the length B of the height D+ buffer distance A > correction micro screw 50 of guide portion 10.Thus, thrust alveolar mucosa 60 in the whole implantation process screwing in alveolar bone completely at correction micro screw 50, can ensure that crewdriver attachment end cuff 40 is in the guide portion 10 of guide plate always, provide and implant guiding fully.
Be understandable that, the height D of guide portion 10 is longer, guides more abundant, but in practical application, needs the impression considering patient, whether produces foreign body sensation.
In one embodiment, the diameter of hollow parts is than large 0.2 to 0.5 millimeter of the diameter of crewdriver attachment end cuff 40.Like this, both can not excesssive gap, crewdriver attachment end cuff 40 is rocked, the accuracy that impact is implanted, also can not gap too small, guide portion 10 inwall and correction micro screw 50 produce and rub, and affect the screw-in of correction micro screw 50.Preferably, larger than the diameter of crewdriver attachment end cuff 40 0.5 millimeter of the diameter of hollow parts.
In one embodiment, larger than internal diameter 1 to 3 millimeter of the external diameter of guide portion 10.This numerical value is too little, and guide portion 10 is perishable, can not fully guide, and this numerical value is too large, then guide portion 10 volume becomes large, and patient may be caused to produce foreign body sensation.Preferably, larger than internal diameter 2 millimeters of the external diameter of guide portion 10.
In one embodiment, the thickness of retainer 30 is 1 to 4 millimeter.This numerical value is too little, and retainer 30 is perishable, can not abundant maintenance, and this numerical value is too large, then retainer 30 volume is large, and patient may be caused to produce foreign body sensation.Preferably, the thickness of retainer 30 is 3 millimeters.
In one embodiment, guide plate uses photocurable resin material.Photocurable resin material energy multi-shell curing prints entity guide plate, has enough intensity and micro screw can be guided to implant, and cheap, and avirulence can temporarily in oral cavity.
With regard to radiation dose and rebuild image precision with regard to, it is clinical that the Srgery grafting guide plate based on CBCT image will be of value to correction more.CBCT is a kind of technology of the three dimensional structure being used for showing jaw region, and compare traditional CT, CBCT has the advantages such as low expense, Low emissivity, high accuracy.
In view of the above-mentioned advantage of CBCT image, this utility model embodiment still provides a kind of manufacture method of correction micro screw implantation guide plate, for making the correction micro screw implantation guide plate described by above-described embodiment.This manufacture method can use following three-dimensional reconstruction software to process, such as, and Mimics software or Simplant software, the second software is helped without the need to relending, namely only use a kind of software can realize the design and fabrication of guide plate, simplify process, reduce cost.
Fig. 5 is the flow chart of the manufacture method of the correction micro screw implantation guide plate of this utility model embodiment.As shown in Figure 5, the method comprises the steps:
Step S501, obtains tooth jaw CBCT three-dimensional data from the CBCT image of patient, adopts predetermined threshold value to rebuild and intends implanting the jawbone in correction micro screw region and the 3-D view of tooth.When taking CBCT image, certain thickness wax disk(-sc) can be put between patient's upper and lower dentition, preventing lower tooth on interlocking pattern from closing face cusp image interference.
Step S502, the 3-D view of correction micro screw to be used is obtained from the correction micro screw 3 d image data storehouse set up in advance, and in the 3-D view of jawbone and tooth, the 3-D view of correction micro screw to be used is adjusted to precalculated position, wherein, precalculated position is after correction micro screw to be used is implanted, and its head exposure is in cortical bone surface and the position that keeps a safe distance with the root of the tooth of phase adjacent teeth of its body.The head exposure of correction micro screw is in oral cavity, and for connecting apparatus for correcting in correction, the body of correction micro screw is implanted in jawbone, and as stake, body is designed to threaded cone shape.The body that safe distance refers to correction micro screw does not touch adjacent root of the tooth, avoids the distance causing root of the tooth to damage.
Correction micro screw diameter is less, mostly is taper, and the cylinder placing diameter in prior art identical with micro screw represents micro screw, thus can not accurately embody micro screw in bone with the position relationship of adjacent root of the tooth.The correction micro screw 3 d image data storehouse set up in advance in the present embodiment can comprise the digital virtual image of clinical conventional correction micro screw, use the image of correction micro screw in this data base, be conducive to determining the position relationship between micro screw and tooth jaw 3 D anatomy structure, and make the scheme more reasonably simulating micro screw implantation direction, the degree of depth.The software such as three dimensional design and mapping software solidworks, pro-engineer or Geomagics can be used to set up the image data base of correction micro screw in advance, for runners.
Step S503, the first cylinder is set up in the 3-D view of jawbone and tooth, adjust the first cylindrical direction identical with the direction of correction micro screw to be used, wherein, first cylindrical diameter is greater than the diameter of the end cuff of crewdriver attachment, and crewdriver attachment is for carrying correction micro screw to be used.
Step S504, set up the guide portion of guide plate: axially form the second cylinder in the first cylinder circumference along it, second cylinder and the first cylinder are coaxially and highly identical, second cylindrical diameter is greater than the first cylindrical diameter, and two cylinder surfaces are provided with buffer distance between one end and alveolar mucosa of alveolar mucosa.
The guide portion of the present embodiment centering guide is hollow cylinder, and its hollow parts is the passage of the end cuff guiding crewdriver attachment.The first cylinder is herein the inner cylinder of guide portion, the cylindrical diameter of hollow parts first (i.e. the internal diameter of hollow cylinder) occupying hollow cylinder is greater than the diameter of the end cuff of crewdriver attachment, can ensure enough spaces and remove to guide the crewdriver attachment carrying correction micro screw.The second cylinder is herein the exterior circular column of guide portion, and the second cylindrical diameter is greater than the first cylindrical diameter, and the half of the two difference in diameter is the wall thickness of guide portion, and namely guide portion has certain thickness, ensures to guide fully.Buffer distance makes guide portion not fit alveolar mucosa, and design process, without the need to adding alveolar mucosa information, also can not exist the interference of mucosa soft tissue, more can not to affect guide plate correctly in place because of mucosal hyperplasia, thus can not affect the accuracy that guide plate guides.
Step S505, sets up the retainer of guide plate: the coating of drawing extension corona predetermined thickness in the conjunction side of an adjacent teeth axial plane height of contour of the implant site of correction micro screw to be used with occlusal surface.Height of contour and the widest part of corona, conjunction side is the part away from tooth meat.
Step S506, rebuild the 3-D view of guide portion and retainer respectively, and guide portion is connected with retainer by the portion that connects, and obtains the 3-D view of guide plate.
Above-mentioned steps S503 to step S506 is the process of runners.
Step S507, the 3-D view according to guide plate prints guide plate.
By the manufacture method of the correction micro screw implantation guide plate of the present embodiment, utilize CBCT scan-data, can radio radiation be reduced.Set up the three-dimensional information storehouse of correction micro screw, in software system, add micro screw three-dimensional information, to be conducive to determining the position relationship between micro screw and tooth jaw 3 D anatomy structure, and make the scheme more reasonably simulating micro screw implantation direction, the degree of depth.Use a kind of software can realize designing and producing of guide plate, what simplify the correction micro screw implantation guide plate on 3-D view basis designs and produces process, reduces cost.The configuration design of guide plate more meets micro screw and implants, and namely ensures that maintenance is sufficient, guides fully.
Concrete, in guide plate design, retainer utilizes the occlusal surface of tooth, makes the occlusal surface of retainer and adjacent teeth and the cheek lingual surface tabling of height of contour conjunction side, makes maintenance more sufficient.Guide portion is that internal diameter implants the large pipe of bar (i.e. screwdriver) diameter than the tubulose carrying micro screw, pipe and cheek-tongue side implantation region keep certain distance (i.e. buffer distance), the design of buffer distance not only ensures that micro screw is implanted back guide and can be dislocated smoothly, and when implanting in intuitively can see that micro screw screws in the process of implantation region, the mucosa being easy under avoiding blind brill occur is piled up.And, correction micro screw is implanted and is guided mainly guide plate guide portion to the guiding of barrel portion of implantation bar maximum gauge of carrying micro screw, when the guide portion length of guide plate is identical, this kind of space to be preserved design makes guide portion more run through micro screw implantation all the time to the guiding of implanting bar.In addition, this design of not fitting with mucosa makes guide plate rely on merely dental branches to hold, do not need the three-dimensional information of mucosa, only utilize can comprise tooth, root of the tooth, jawbone three-dimensional information CBCT information just can complete designing and producing of guide plate, not needing CBCT 3-D view and tooth to close the overlay registration of laser scanning surface 3-D view, avoiding registration error to guiding the impact of implanting degree of accuracy.
In one embodiment, buffer distance meets the following conditions: the length of the height of head≤buffer distance≤crewdriver attachment end cuff of correction micro screw to be used, and the length of the height of guide portion+buffer distance > correction micro screw to be used.Thus, thrust alveolar mucosa in the whole implantation process screwing in alveolar bone completely at correction micro screw, can ensure that crewdriver attachment end cuff is in the guide portion of guide plate always, provide and implant guiding fully.
In one embodiment, the first cylindrical diameter is than large 0.2 to 0.5 millimeter of the diameter of crewdriver attachment end cuff.Like this, both can not excesssive gap, crewdriver attachment end cuff is rocked, the accuracy that impact is implanted, also can not gap too small, guide portion inwall and correction micro screw produce and rub, and affect the screw-in of correction micro screw.Preferably, larger than the diameter of crewdriver attachment end cuff 0.5 millimeter of the first cylindrical diameter.
In one embodiment, the second cylindrical diameter is than large 1 to 3 millimeter of the first cylindrical diameter.Namely the difference of hollow cylinder inner diameter and external diameter is 1 to 3 millimeter.This numerical value is too little, and guide portion is perishable, can not fully guide, and this numerical value is too large, then guide portion volume becomes large, and patient may be caused to produce foreign body sensation.Preferably, larger than the first cylindrical diameter 2 millimeters of the second cylindrical diameter.
In one embodiment, the predetermined thickness of retainer is 1 to 4 millimeter.This numerical value is too little, and retainer is perishable, can not abundant maintenance, and this numerical value is too large, then retainer volume is large, and patient may be caused to produce foreign body sensation.Preferably, the predetermined thickness of retainer is 3 millimeters.
The predetermined threshold value reconstruction plan implantation jawbone in correction micro screw region and the 3-D view of tooth is adopted to realize in the following manner in step S501: form the preliminary layer of jawbone and denture respectively according to predetermined threshold value after, every layer is carried out noise erasing, obtains jawbone layer and denture layer; Carry out reconstruction according to jawbone layer and denture layer to calculate, obtain the 3-D view of jawbone and tooth.Carry out noise erasing, data interference can be reduced, obtain 3-D view more accurately.
Namely predetermined threshold value rebuilds threshold value, and also referred to as CT value, CT value is a kind of measurement unit measuring a certain local organization of human body or organ density size, usually claims Heng Shi unit (Hounsfield Unit, referred to as HU).CT value represents x-ray through tissue by the pad value after absorbing, for the absorbance of quantitative measurement tissue for X-ray, and its unit to be CT value be not absolute value, but a relative value.The CT value of different tissues is different, fluctuates within the specific limits separately, and such as, the CT value of skeleton is the highest, is 1000HU; The CT value of soft tissue is 20 ~ 70HU, and the CT value of water is 0 (± 10) HU, and the CT value of fat is-50 ~-100HU, and the CT value of air is-1000HU.
To rebuild denture, choose the tissue reconstruction of CT value in 1100 ~ 2061 scopes, the 3-D view of denture can be obtained more accurately.This scope choose with reference to following 2 points: the reconstruction scope of different tissues of Mimics software self acquiescence, and the most close threshold range rebuilding image and inter-entity under the different threshold values rule of thumb obtained in research before.Rebuilding jawbone, can to choose CT value scope be 270-2061, and like this, the reconstruction CT value scope of jawbone is greater than the reconstruction CT value scope of denture, then can comprise the image of denture in the 3-D view of jawbone.
The effect of denture layer is mainly used in showing root of the tooth, implants correction micro screw according to root of the tooth position, avoids contacting root of the tooth, causes the damage of root of the tooth.
In one embodiment, after step S503 sets up the first cylinder, reverse technology (function carried in software) is also utilized to obtain the first cylindrical layer.Guide portion and the retainer of setting up guide plate complete in denture layer, obtain the first layer, utilize Boolean calculation to deduct jawbone layer and the first cylindrical layer, obtain guide plate layer.
Preferably, the one-body molded printing guide plate of photocurable resin material can be used.Photocurable resin material energy multi-shell curing prints entity guide plate, has enough intensity and micro screw can be guided to implant, and cheap, and avirulence can temporarily in oral cavity.
In addition, use the design of inelastic photocurable resin material, connecting portion and one-body molded printing guide plate, the existence of buffer distance can be ensured.
In order to more clearly explain above-mentioned correction micro screw implantation guide plate and preparation method thereof, be described below in conjunction with specific embodiment, but it should be noted that this embodiment is only to better this utility model is described, do not form and this utility model is limited improperly.
Compared with existing guide plate manufacture method and guide plate, the advantage of the present embodiment is: reduce radiation, and what simplify the micro screw implantation guide plate on 3-D view basis designs and produces process, and the configuration design of guide plate more meets micro screw and implants.Step following (design and fabrication by mimics software simulating guide plate):
(1) CBCT scanning
Certain thickness wax disk(-sc) is put between patient's upper and lower dentition, shooting CBCT image, prevent lower tooth on interlocking pattern from closing face cusp image interference.
Obtain tooth jaw CBCT three-dimensional data, adopt different CT threshold values to rebuild respectively and intend implanting the jawbone in micro screw region, the 3-D view of tooth (comprising root of the tooth).Wherein, CT threshold value is respectively jaw bones cortex (270-2061), tooth (1100-2061), after forming preliminary layer (mask0), utilize edit instrument to carry out noise erasing on every layer, form denture layer (mask1) and jawbone layer (mask2).Utilize calculate instrument to carry out reconstruction to calculate, obtain the 3-D view of part denture, jawbone clearly.
(2) micro screw three-dimensional data information is obtained
Utilize solidworks software to draw out micro screw 3-D view in advance, set up the micro screw 3 d image data storehouse of different brands, different size (diameter, length, configuration design (head and body) etc.).This step completes in advance, certainly, if there is new micro screw to come out, software can be utilized at any time to draw its 3-D view and add in data base, upgrade in time, transfer 3-D view during convenient making guide plate.The body of correction micro screw is designed to threaded cone shape, and the diameter of correction micro screw refers to the maximum gauge of threaded portion, such as 1.2mm, 1.5mm, 1.8mm, 2.0mm etc., and the length of correction micro screw can be 6mm, 8mm, 10mm, 12mm etc.
(3) micro screw 3-D view is imported Mimics software, carry out the virtual plan of simulating micro screw implantation.
The STL formatted file of micro screw 3-D view is imported in Mimics software, in the position of three peacekeeping two dimension window adjusting micro screws, the head exposure of micro screw is kept to maintain safe distance in cortical bone surface (namely alveolar mucosa is outer), body with the root of the tooth of phase adjacent teeth.Fixed the position of micro screw, with MEDCAD function module design first cylinder of Mimics software, adjustment the first cylindrical direction is identical with the direction of micro screw; First cylindrical diameter is greater than crewdriver attachment cuff diameter 0.5mm.Reverse technology is utilized to obtain the first cylindrical layer (mask3).
(4) virtual micro screw implantation guide plate is designed
Denture layer (mask1) utilize edit instrument successively to carry out guide plate three dimensional design.
Guide portion designs: be greater than second cylinder of the first cylinder 2mm in the first cylinder circumference along its major axis (namely axially) formation diameter, two cylinders are coaxial and contour, one section of buffer distance is designed towards between one end and alveolar mucosa of implant site, the standard of this buffer distance is as follows: (crewdriver attachment end cuff is the maximum gauge part of crewdriver attachment to the length of buffer distance≤the carry crewdriver attachment end cuff of micro screw that the height of head of micro screw is reserved, object for directed), and the length of guide portion length+buffer distance > micro screw.
Retainer designs: the coating of extension corona about 3mm is drawn by an adjacent corona height of contour conjunction side of the micro screw implant site in denture layer (mask1).
The layer (mask4) that such formation is new, (mask2 comprises denture to utilize Boolean calculation to deduct mask2, so without the need to deducting mask1 again), deduct mask3 again, namely obtain the layer (mask5) of guide plate, utilize calculate instrument to rebuild guide portion and retainer 3-D view.Carry out 3-D view amendment at three dimensional window, guide portion is connected with retainer.
(5) RP produces micro screw implantation guide plate
The stl file of three-dimensional guide plate is exported, utilizes three-dimensional fast shaping machine (such as, 30pro type object Lo.Itd) to print guide plate entity.
In sum, in this utility model embodiment, guide plate configuration design is more conducive to the implantation of correction micro screw, and retainer utilizes the axial plane of adjacent teeth to combine maintenance with occlusal surface, and maintenance is sufficient; Design buffer distance between guide portion and implant site mucosa, make to guide more abundant, intuitively can see implantation process, and implanted back guide and can dislocate smoothly.Manufacturing process is simple.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " preferred embodiment ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a correction micro screw implantation guide plate, it is characterized in that, comprising: guide portion, connecting portion and retainer, described guide plate is integrated;
Described guide portion is a hollow cylinder, and its hollow parts is the passage of the end cuff guiding crewdriver attachment, and the diameter of described hollow parts is greater than the diameter of described end cuff, and described crewdriver attachment is used for carrying correction micro screw; Described guide portion is provided with buffer distance towards between one end and described alveolar mucosa of alveolar mucosa;
Described retainer, is fixed on the side of described guide portion by described connecting portion, described retainer is wrapped in conjunction side and the occlusal surface of an adjacent teeth axial plane height of contour of described correction micro screw implant site.
2. correction micro screw implantation guide plate according to claim 1, it is characterized in that, the length of the height of head≤described buffer distance≤described end cuff of described correction micro screw, and the length of correction micro screw described in the height of described guide portion+described buffer distance >.
3. correction micro screw implantation guide plate according to claim 1 and 2, is characterized in that, the diameter of described hollow parts is than large 0.2 to 0.5 millimeter of the diameter of described end cuff.
4. correction micro screw implantation guide plate according to claim 1 and 2, is characterized in that, larger than internal diameter 1 to 3 millimeter of the external diameter of described guide portion.
5. correction micro screw implantation guide plate according to claim 1 and 2, it is characterized in that, the thickness of described retainer is 1 to 4 millimeter.
6. correction micro screw implantation guide plate according to claim 1 and 2, is characterized in that, described guide plate uses photocurable resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420591211.2U CN204207868U (en) | 2014-10-13 | 2014-10-13 | Correction micro screw implantation guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420591211.2U CN204207868U (en) | 2014-10-13 | 2014-10-13 | Correction micro screw implantation guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204207868U true CN204207868U (en) | 2015-03-18 |
Family
ID=52976582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420591211.2U Active CN204207868U (en) | 2014-10-13 | 2014-10-13 | Correction micro screw implantation guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204207868U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104323865A (en) * | 2014-10-13 | 2015-02-04 | 首都医科大学附属北京口腔医院 | Guide plate for implantation of orthodontic micro-screw and manufacturing method thereof |
| CN106473822A (en) * | 2016-11-02 | 2017-03-08 | 北京西科码医疗器械股份有限公司 | Design, the edentulous jaw implantation methods of making denture |
| CN106618672A (en) * | 2016-11-11 | 2017-05-10 | 广西中医药大学附属瑞康医院 | Guide plate and manufacturing equipment thereof |
| CN113974868A (en) * | 2021-08-13 | 2022-01-28 | 北京冠美口腔医院管理有限公司 | Method for manufacturing orthodontic-driven precision surgical guide plate special for cortical osteotomy |
-
2014
- 2014-10-13 CN CN201420591211.2U patent/CN204207868U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104323865A (en) * | 2014-10-13 | 2015-02-04 | 首都医科大学附属北京口腔医院 | Guide plate for implantation of orthodontic micro-screw and manufacturing method thereof |
| CN104323865B (en) * | 2014-10-13 | 2018-01-02 | 首都医科大学附属北京口腔医院 | Correction micro screw implantation guide plate and preparation method thereof |
| CN106473822A (en) * | 2016-11-02 | 2017-03-08 | 北京西科码医疗器械股份有限公司 | Design, the edentulous jaw implantation methods of making denture |
| CN106473822B (en) * | 2016-11-02 | 2021-02-02 | 北京西科码医疗科技股份有限公司 | Non-dental jaw implantation method for designing and manufacturing temporary false tooth before operation |
| CN106618672A (en) * | 2016-11-11 | 2017-05-10 | 广西中医药大学附属瑞康医院 | Guide plate and manufacturing equipment thereof |
| CN113974868A (en) * | 2021-08-13 | 2022-01-28 | 北京冠美口腔医院管理有限公司 | Method for manufacturing orthodontic-driven precision surgical guide plate special for cortical osteotomy |
| CN113974868B (en) * | 2021-08-13 | 2023-06-23 | 北京冠美口腔医院管理有限公司 | Manufacturing method of special precision surgical guide plate for orthodontic driven osteotomy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104323865A (en) | Guide plate for implantation of orthodontic micro-screw and manufacturing method thereof | |
| Kanazawa et al. | Digital impression and jaw relation record for the fabrication of CAD/CAM custom tray | |
| CN102084365B (en) | Method and system for dental planning | |
| Infante et al. | Fabricating complete dentures with CAD/CAM technology | |
| US9358082B2 (en) | System and method for planning and/or producing a dental prosthesis | |
| US10456215B2 (en) | System and method for planning a first and second dental restoration | |
| Ciocca et al. | Computer‐aided design and manufacturing construction of a surgical template for craniofacial implant positioning to support a definitive nasal prosthesis | |
| CN106725936B (en) | Dental 3D printing system based on cloud technology | |
| Katase et al. | Face simulation system for complete dentures by applying rapid prototyping | |
| Yamamoto et al. | Effects of offset values for artificial teeth positions in CAD/CAM complete denture | |
| CN104699865A (en) | Digital oral fixed restoration method and device | |
| CN204207868U (en) | Correction micro screw implantation guide plate | |
| KR20100016180A (en) | Method for deriving shape information | |
| CN101822575A (en) | Method of making partial-anodontia tooth implantation surgical guide plate | |
| CN103284808A (en) | Method for preparing positioning guide plate of oral and dental implants | |
| Tasopoulos et al. | Fabrication of a 3D-printed interim obturator prosthesis: a contemporary approach | |
| CN106580495B (en) | Dental 3D printing system | |
| CN105596106B (en) | A kind of method for being segmented modulus and complete dental arch model being gathered by computer registration combination | |
| CN105708565A (en) | Method and device for manufacturing orthodontic bracket | |
| CN106821550B (en) | Split type jaw defect prosthesis preparation method | |
| KR102215068B1 (en) | Apparatus and Method for Registrating Implant Diagnosis Image | |
| Soriano et al. | Frequency and type of digital procedures used for the intraoral prosthetic rehabilitation of patients with head and neck cancer: A systematic review | |
| TWI438732B (en) | Intergrated method of adapting guide - navigation systems and bio-prosthesis fabrication for dental implantation | |
| Kang et al. | Using a guide template with a handpiece sleeve to locate the abutment screw position of a cement-retained implant restoration | |
| Kane et al. | A dual scan approach to creating an accurate dental surface for virtual implant planning: A dental technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |