CN111529099A - Method for manufacturing assembly of fixing bridge and columnar attachment for planting screws - Google Patents

Method for manufacturing assembly of fixing bridge and columnar attachment for planting screws Download PDF

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CN111529099A
CN111529099A CN202010437228.2A CN202010437228A CN111529099A CN 111529099 A CN111529099 A CN 111529099A CN 202010437228 A CN202010437228 A CN 202010437228A CN 111529099 A CN111529099 A CN 111529099A
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attachment
information
bridge
columnar
model
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CN111529099B (en
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牛东平
赵创
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Beijing Liaison Dental Technology Co Ltd
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Beijing Liaison Dental Technology Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/17—Mechanical parametric or variational design
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2113/00—Details relating to the application field
    • G06F2113/10—Additive manufacturing, e.g. 3D printing

Abstract

The invention provides a method for manufacturing an assembly of a fixing bridge for planting screws and a columnar attachment. Measuring three-dimensional data of each part of the finished product cylindrical attachment by using a precision micrometer, acquiring design parameters of the finished product cylindrical attachment, importing the design parameters into computer-aided three-dimensional design software, and acquiring STL data of the finished product cylindrical attachment; and obtaining programming data of the combined model, and importing the programming data into a lathe, wherein the lathe processes a pre-prepared titanium column to be planted through the programming data to obtain the assembly of the fixed bridge and the columnar attachment. Has the advantages that: the parameters of the finished columnar attachment are used as part of the parameters of the invention, so that the design procedure of the columnar attachment is simplified, a large amount of data extraction design is not needed in the early stage, and the mass production of the components can be realized only by fine adjustment under the condition of determining the fixed bridge.

Description

Method for manufacturing assembly of fixing bridge and columnar attachment for planting screws
Technical Field
The invention relates to the technical field of dental implantation, in particular to a method for manufacturing a fixing bridge of an implantation screw and a component of a columnar attachment.
Background
At present, in the prior art, the columnar attachment is generally used in the field of conventional fixed denture repair, but is not used in the field of implant repair, and the invention mainly aims to apply the conventional columnar attachment to an implant screw bridge by utilizing a digitization technology to realize a new fixing mode of using the columnar attachment on the implant screw bridge.
Disclosure of Invention
The invention provides a fixing bridge for planting screws and a manufacturing method of a component of a columnar attachment, which are used for solving the problem that the columnar attachment is not used in the field of plant repair.
A method of manufacturing an assembly of a fixation bridge and a cylindrical attachment for implanting screws, comprising:
measuring three-dimensional data of each part of the finished product cylindrical attachment by using a precision micrometer, acquiring design parameters of the finished product cylindrical attachment, importing the design parameters into computer-aided three-dimensional design software, and acquiring STL data of the finished product cylindrical attachment;
acquiring a planting work model of the oral cavity of a patient, and determining oral cavity information of the patient;
importing the oral information into computer-aided implant design software to obtain a fixed bridge model of the implant screw;
importing the STL data of the finished product columnar attachment into computer-aided planting design software to obtain a combined model of the fixed bridge and the columnar attachment, and determining the STL data of the combined model;
and importing STL data of the combined model into CAM software to obtain programming data of the combined model, importing the programming data into a lathe, and cutting a pre-planted titanium column which is configured in advance on the lathe by the lathe in combination with the programming data to obtain the assembly of the fixed bridge and the columnar attachment.
As an embodiment of the present invention: the method for measuring the three-dimensional data of each part of the finished product cylindrical attachment by using the precision micrometer and determining the design parameters of the finished product cylindrical attachment comprises the following steps:
presetting a finished product columnar attachment, and sequentially acquiring three-dimensional size data of each part of the finished product columnar attachment from left to right through a precision micrometer;
importing the three-dimensional size data into computer-aided 3D printing equipment to obtain a 3D three-dimensional model of the finished columnar attachment;
according to the 3D model, determining the columnar information of the non-attachment part and the attachment surface information of the attachment side of the finished columnar attachment;
and determining the design parameters of the finished columnar attachment according to the columnar information and the attachment surface information.
As an embodiment of the present invention: acquiring a planting work model of the oral cavity of a patient, and determining oral cavity information of the patient, wherein the planting work model comprises the following steps:
acquiring three-dimensional image information of the oral cavity of a patient, and establishing and obtaining a three-dimensional model of the oral cavity of the patient;
determining three-dimensional parameters of the oral cavity of the patient according to the three-dimensional model;
importing the three-dimensional parameters into 3D printing equipment to obtain a preoperative planting work model;
scanning the implant work model through a dental scanner to determine oral cavity information of the patient, wherein,
the oral cavity information includes: the information of the remaining teeth, the information of the gum, the information of the opposite jaw teeth and the information of the occlusion relation of the upper and lower teeth.
As an embodiment of the present invention: importing the oral information into computer-aided implant design software to obtain a fixed bridge model of the implant screw, wherein the fixed bridge model comprises the following steps:
importing the residual tooth information into computer-aided implant design software to obtain the number information of the fixing holes in the fixing bridge model of the implant screw;
importing the gum information into computer-aided implant design software to obtain curve radian information of the upper part of a fixed hole of a fixed bridge of the implant screw and bridge body information of the fixed bridge;
importing the information of the pair of jaw teeth and the occlusion information of the upper and lower teeth into computer-aided planting design software to obtain depth information of a fixed hole in a fixed bridge of the planting screw and hardness information of the fixed bridge;
and determining the fixed bridge model according to the fixed hole number information, the fixed hole upper part curve radian information, the fixed bridge body information, the fixed hole depth information and the fixed bridge hardness information.
As an embodiment of the present invention: and then importing the STL data of the finished product cylindrical attachment into computer aided plant design software to obtain a combined model of the fixed bridge and the cylindrical attachment, wherein the combined model comprises the following steps:
constructing a symmetrical attachment model of the columnar attachment according to the STL data of the finished columnar attachment;
respectively symmetrically fixing the symmetrical attachment models on the left side and the right side of the fixed bridge model, and adjusting the fixing strength of the symmetrical attachment models;
and after the symmetrical attachment models are fixed on the left side and the right side of the fixed bridge model, constructing a combined model of the fixed bridge and the columnar attachment through computer-aided planting design software.
As an embodiment of the present invention: the step of importing the STL data of the combinatorial model into CAM software to obtain the programming data of the combinatorial model includes:
converting the STL data of the combined model into programmable data;
importing the programmable data into CAM software, performing programming operation and obtaining an operation result;
and acquiring programming data of the combined model according to the operation result.
As an embodiment of the present invention: the step of importing the programming data into a lathe, wherein the lathe performs cutting processing on a pre-planted titanium column which is configured in advance on the lathe by combining the programming data to obtain the assembly of the fixed bridge and the columnar attachment comprises the following steps:
the programming data are imported into a lathe, and the lathe determines the number of the fixed holes in the fixed bridge, the cutting depth, the smoothness and the radian of the cutting curve according to the programming data;
determining the surface smoothness and the cutting curve radian of the columnar attachment;
guiding the number of the fixing holes of the fixing bridge, the cutting depth, the smoothness and the cutting curve radian into the lathe, and performing cutting processing through a pre-configured pre-fabricated titanium column to obtain the fixing bridge;
guiding the surface smoothness and the cutting curve radian of the columnar attachment into the lathe, and performing cutting processing on a pre-prepared pre-planted titanium column to obtain a columnar attachment;
and installing the columnar attachment body on two sides of the fixed bridge to obtain the assembly of the fixed bridge and the columnar attachment body.
As an embodiment of the present invention: the step of importing the programming data into a lathe, wherein the lathe performs cutting processing on a pre-manufactured titanium-implanted column which is configured in advance on the lathe by combining the programming data to obtain the assembly of the fixed bridge and the columnar attachment body, and the step of importing the programming data into the lathe further comprises the following steps:
setting a finished product model of the fixed bridge and a finished product model of the columnar attachment according to the programming data;
acquiring a first graph set of each surface of the finished product model of the fixed bridge and a second graph set of each surface of the finished product model of the columnar attachment;
when the fixed bridge and the columnar attachment after cutting are obtained, calculating a first overlapping rate of each surface of the fixed bridge after cutting and the first graph set; calculating a second overlapping rate of each surface of the machined and cut columnar attachment and the second graph set;
setting a waste overlapping rate range, a reprocessing overlapping rate range and a finished product overlapping rate range of the fixed bridge and the columnar attachment after machining and cutting according to the first overlapping rate and the second overlapping rate;
and judging whether the machined and cut fixed bridge and the columnar attachment belong to a waste overlapping rate range, a reprocessing overlapping rate range or a finished product overlapping rate range, and performing classification treatment.
As an embodiment of the present invention: with the installation of column attachment with fixed bridge both sides obtain the subassembly of fixed bridge and column attachment includes:
obtaining a fixed bridge and a columnar attachment after cutting;
according to the fixed bridge after cutting, acquiring the shape, size and concave-convex information of the attached surface of the fixed bridge after cutting;
acquiring the shape, size and concave-convex information of the attaching surface of the cylindrical attachment body after cutting according to the cylindrical attachment body after cutting;
determining the attaching information of the fixed bridge and the columnar attachment according to the shape, the size and the concave-convex information of the attaching surface of the fixed bridge and the columnar attachment after cutting and the shape, the size and the concave-convex information of the attaching surface;
and the lathe is used for micromachining the fixed bridge and the columnar attachment again according to the attaching information.
As an embodiment of the present invention: the lathe is used for micromachining the fixed bridge and the columnar attachment again according to the attaching information, and the method comprises the following steps:
acquiring the attaching information, and determining a fixed bridge processing coordinate point set A and a columnar attachment processing coordinate point set B of the cut fixed bridge and the columnar attachment on a horizontal axis x, a vertical axis y and a vertical axis z of the three-dimensional image:
A＝{(x1,y1,z1),(x2,y2,z2)……(xi,yi,zi)}
B＝{(x1,y1,z1),(x2,y2,z2)……(xl,yl,zl)}
wherein, the xi,yi,ziRepresenting coordinates of the fixed bridge at the ith machining coordinate point; said xl,yl,zlThe coordinates of the columnar attachment at the first machining coordinate point are represented, i is 1,2,3, … … i, l is 1,2,3, … … l;
forming a first processing matrix Aa and a second processing matrix Bb according to the set of processing coordinate points:
Figure BDA0002502728400000061
Figure BDA0002502728400000062
calculating the attaching degree P of the first processing matrix Aa and the second processing matrix Bb,
Figure BDA0002502728400000063
wherein n represents the number of processing coordinate points of the fixed bridge and the columnar attachment in the first processing matrix Aa and the second processing matrix Bb;
according to the fitting degree, the fixed bridge processing coordinate point set A and the columnar attachment processing coordinate point set B, constructing a fixed bridge and columnar attachment fitting processing model:
Figure BDA0002502728400000071
wherein the AN is the reliability of the processing coordinate point of the fixed bridge, the BN is the reliability of the processing coordinate point of the columnar attachment, and G (A)iBl) The product of the ith processing coordinate point of the fixed bridge processing coordinate point set A and the ith processing coordinate point of the columnar attachment processing coordinate point set B is obtained;
according to the bonding processing model, when G is larger than or equal to 1, the processing degree of the bonding processing model is high, and fine adjustment is not needed;
according to the attaching processing model, when G is less than 1, the processing degree of the attaching processing model is indicated to be low, and fine adjustment is carried out after parameters of processing coordinate points are modified through the attaching processing model.
The invention has the beneficial effects that: the implant screw fixing bridge can directly complete half-mouth implant fixing repair of a patient, but if the implant positions in the mouth of the patient are in the anterior tooth area and the free end gap of the posterior tooth area is too large, a new repair method needs to be considered in order to protect the implant from being damaged. The assembly of the time-fixed bridge and the columnar attachment is finally obtained, so that the complete equipment is more convenient to install when in use compared with non-complete equipment, and the cost is saved. In the manufacturing process, the parameters of the finished columnar attachments are used as part of the parameters of the invention, so that the design procedure of the columnar attachments is simplified, the columnar attachments can be arranged on two sides of the fixed bridge only, the standard of the invention can be met, a large amount of data extraction design in the early stage is not needed, and the mass production of the components can be realized only by fine adjustment under the condition of determining the fixed bridge.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a method for manufacturing an assembly of a fixing bridge and a post-like attachment for implanting screws according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, a flow chart of a method for manufacturing an assembly of a fixing bridge and a cylindrical attachment for implanting screws includes:
step 100: measuring three-dimensional data of each part of the finished product cylindrical attachment by using a precision micrometer, acquiring design parameters of the finished product cylindrical attachment, importing the design parameters into computer-aided three-dimensional design software, and acquiring STL data of the finished product cylindrical attachment; the finished columnar attachment model is a human oral tooth model.
Step 101: acquiring a planting work model of the oral cavity of a patient, and determining oral cavity information of the patient;
step 102: importing the oral information into computer-aided implant design software to obtain a fixed bridge model of an implant screw;
step 103: importing the STL data of the finished product columnar attachment into computer-aided planting design software to obtain a combined model of the fixed bridge and the columnar attachment, and determining the STL data of the combined model;
step 104: and importing the STL data of the combined model into CAM software to obtain programming data of the combined model, importing the programming data into a lathe, and processing a pre-prepared titanium column to be planted through the lathe according to the programming data to obtain the assembly of the fixed bridge and the columnar attachment.
The principle of the invention is as follows: according to the invention, three-dimensional size data of a finished product cylindrical attachment in the prior art is measured and measured by a precision micrometer, so that design parameters of the finished product cylindrical attachment in the prior art are obtained, STL data of the finished product cylindrical attachment is generated by computer three-dimensional design software according to the design parameters, then an implantation work model containing all information of a patient oral cavity is generated, and the patient oral cavity information is determined to obtain a fixed bridge model of an implanted screw in the patient oral cavity through the oral cavity information; then, introducing STL data of the finished columnar attachment into computer-aided plant design software again, obtaining a combined model of the columnar attachment attached to the left side and the right side of the fixed bridge through a simulation technology, and then converting the STL data of the combined model. And finally, generating programming data through CAM software to obtain a program for programming implementation, and inputting the program into a lathe to obtain the final assembly of the fixed bridge and the columnar attachment.
The invention has the beneficial effects that: the assembly of the time-fixed bridge and the columnar attachment is finally obtained, so that the complete equipment is more convenient to install when in use compared with non-complete equipment, and the cost is saved. In the manufacturing process, the parameters of the finished columnar attachments are used as part of the parameters of the invention, so that the design procedure of the columnar attachments is simplified, the columnar attachments can be arranged on two sides of the fixed bridge only, the standard of the invention can be met, a large amount of data extraction design in the early stage is not needed, and the mass production of the components can be realized only by fine adjustment under the condition of determining the fixed bridge.
As an embodiment of the present invention: the method for measuring the three-dimensional data of each part of the finished product cylindrical attachment by using the precision micrometer and determining the design parameters of the finished product cylindrical attachment comprises the following steps:
presetting a finished product columnar attachment, and sequentially acquiring three-dimensional size data of each part of the finished product columnar attachment from left to right through a precision micrometer;
importing the three-dimensional size data into computer-aided 3D printing equipment to obtain a 3D three-dimensional model of the finished columnar attachment;
according to the 3D model, determining the columnar information of the non-attachment part and the attachment surface information of the attachment side of the finished columnar attachment; the finished columnar attachment body has an attaching side and a non-attaching side in the oral cavity of a human body, and the columnar information is information of the column of the columnar attachment body, including but not limited to length, width, size, concave-convex condition and the like.
And determining the design parameters of the finished columnar attachment according to the columnar information and the attachment surface information.
The principle of the invention is as follows: in the early stage of the re-design, the data of the cylindrical attachment body needs to be extracted firstly, the three-dimensional size data of each part of the finished cylindrical attachment body, including the surface three-dimensional size data of the finished cylindrical attachment body, the three-dimensional size data of the attachment surface and the three-dimensional size data of the non-cylindrical body, are obtained through a precision micrometer, then a 3D three-dimensional model is obtained through 3D printing equipment, and the design parameters of the finished cylindrical attachment body can be obtained through the model.
The invention has the beneficial effects that: the embodiment is mainly a process for obtaining the design parameters of the finished cylindrical attachment, and the design parameters of the finished cylindrical attachment do not need to be designed according to the oral cavity condition of the patient in the manufacturing process of the invention, because the fixing bridge in the oral cavity of the patient and the cylindrical attachment are originally used in a combined connection mode, if the fixing bridge and the cylindrical attachment are designed according to the oral cavity information of the patient, the process is complex, the design of the joint of the fixing bridge and the cylindrical attachment cannot be determined, and the cylindrical attachment of the finished product is designed for the joint, so that the installation is convenient, and the design process is saved.
As an embodiment of the present invention: acquiring a planting work model of the oral cavity of a patient, and determining oral cavity information of the patient, wherein the planting work model comprises the following steps:
acquiring three-dimensional image information of the oral cavity of a patient, and establishing and obtaining a three-dimensional model of the oral cavity of the patient;
determining three-dimensional parameters of the oral cavity of the patient according to the three-dimensional model;
importing the three-dimensional parameters into 3D printing equipment to obtain a preoperative planting work model;
scanning the implant work model through a dental scanner to determine oral cavity information of the patient, wherein,
the oral cavity information includes: the information of the remaining teeth, the information of the gum, the information of the opposite jaw teeth and the information of the occlusion relation of the upper and lower teeth.
The principle of the invention is as follows: the method comprises the steps of firstly obtaining three-dimensional image information of the oral cavity of a patient, extracting three-dimensional information on each picture through the three-dimensional image information, and constructing a three-dimensional model through the three-dimensional information, wherein the three-dimensional information mainly comprises three-dimensional information such as angles, heights, curves, concave-convex shapes and the like. Three-dimensional parameters can be extracted from the three-dimensional model through common three-dimensional software, and the three-dimensional real model can be directly printed by 3D printing equipment in the prior art through the three-dimensional parameters, so that the three-dimensional real model can be used as a working model.
The invention has the beneficial effects that: according to the invention, the three-dimensional real model is obtained through the 3D printing equipment, the reality degree of the real model is higher, various oral information in the oral cavity of the patient can be extracted in the same proportion, and the reality degree of the information is fit with the real information in the oral cavity of the patient.
As an embodiment of the present invention: importing the oral information into computer-aided implant design software to obtain a fixed bridge model of the implant screw, wherein the fixed bridge model comprises the following steps:
importing the residual tooth information into computer-aided implant design software to obtain the number information of the fixing holes in the fixing bridge model of the implant screw;
importing the gum information into computer-aided implant design software to obtain curve radian information of the upper part of a fixed hole of a fixed bridge of the implant screw and bridge body information of the fixed bridge;
importing the information of the pair of jaw teeth and the occlusion information of the upper and lower teeth into computer-aided planting design software to obtain depth information of a fixed hole in a fixed bridge of the planting screw and hardness information of the fixed bridge;
and determining the fixed bridge model according to the fixed hole number information, the fixed hole upper part curve radian information, the fixed bridge body information, the fixed hole depth information and the fixed bridge hardness information.
The principle of the invention is as follows: the main design of the invention is the design of a fixed bridge, teeth need to be fixed when the fixed bridge is used, therefore, the information of the residual teeth comprises the number and arrangement of the residual teeth, and false teeth are required to be installed at places other than the residual teeth, so that the number of the false teeth is determined, and the number and the positions of the fixed holes in the fixed bridge are also determined. The gum information determines the curvature of the fixation hole during design and the bridge body of the fixation bridge. Finally, the depth of a fixing hole in the fixing bridge and the hardness of the fixing bridge are determined according to the information of the jaw teeth and the occlusion information of the upper teeth and the lower teeth, and the fixed bridge model can be determined during redesigning through the design signs of the plurality of fixing bridges, namely the determination of design parameters.
The invention has the beneficial effects that: through simulation and information extraction and characteristic evolution to oral cavity information, can confirm the characteristic of fixed bridge, design out fixed bridge that can be rapid through fixed bridge characteristic, confirmed the fixed bridge shape in the subassembly.
As an embodiment of the present invention: and then importing the STL data of the finished product cylindrical attachment into computer aided plant design software to obtain a combined model of the fixed bridge and the cylindrical attachment, wherein the combined model comprises the following steps:
constructing a symmetrical attachment model of the columnar attachment according to the STL data of the finished columnar attachment;
respectively symmetrically fixing the symmetrical attachment models on the left side and the right side of the fixed bridge model, and adjusting the fixing strength of the symmetrical attachment models;
and after the symmetrical attachment models are fixed on the left side and the right side of the fixed bridge model, constructing a combined model of the fixed bridge and the columnar attachment through computer-aided planting design software.
The principle of the invention is as follows: because the columnar attachments are attached to the two sides of the fixed bridge, the invention directly constructs the symmetrical attachment models of the columnar attachments through the STL data of the finished columnar attachments, directly installs the symmetrical attachment models on the two sides of the designed fixed bridge model during redesign, and then constructs the combined model through computer-aided plant design software.
The invention has the beneficial effects that: the symmetrical attachment model is constructed in advance, and when the combined model is designed, the symmetrical attachment model can be directly added to two sides, so that the design procedures are reduced, and the design speed is accelerated. But also can make the laminating more closely through the fine setting, fixed intensity when increasing the combination model and connecting.
As an embodiment of the present invention: the step of importing the STL data of the combinatorial model into CAM software to obtain the programming data of the combinatorial model includes:
converting the STL data of the combined model into programmable data;
importing the programmable data into CAM software, performing programming operation and obtaining an operation result;
and acquiring programming data of the combined model according to the operation result.
The principle of the invention is as follows: according to the invention, the STL data of the combined model is converted into the programmable data, so that the combined model CAN be subjected to programming operation through CAN software, and the digital programming data which CAN be understood by the combined model based on the digital lathe CAN be obtained.
The invention has the beneficial effects that: through the programmable conversion of the combined model, the combined model can be processed and manufactured through a digital control lathe, and the combined model is more accurate and faster due to the design of the digital lathe.
As an embodiment of the present invention: the step of importing the programming data into a lathe, wherein the lathe performs cutting processing on a pre-planted titanium column which is configured in advance on the lathe by combining the programming data to obtain the assembly of the fixed bridge and the columnar attachment comprises the following steps:
the programming data are imported into a lathe, and the lathe determines the number of the fixed holes in the fixed bridge, the cutting depth, the smoothness and the radian of the cutting curve according to the programming data;
determining the surface smoothness and the cutting curve radian of the columnar attachment;
guiding the number of the fixing holes of the fixing bridge, the cutting depth, the smoothness and the cutting curve radian into the lathe, and performing cutting processing through a pre-configured pre-fabricated titanium column to obtain the fixing bridge;
guiding the surface smoothness and the cutting curve radian of the columnar attachment into the lathe, and performing cutting processing on a pre-prepared pre-planted titanium column to obtain a columnar attachment;
and installing the columnar attachment body on two sides of the fixed bridge to obtain the assembly of the fixed bridge and the columnar attachment body.
The principle of the invention is as follows: in the processing and manufacturing of the fixed bridge and the columnar attachment assembly, the number of the fixed holes, the cutting depth, the smoothness and the radian of a cutting curve are comprehensively obtained; the surface smoothness of the columnar attachment and the radian of a cutting curve can be directly cut and processed by a lathe through the data, and a pre-configured pre-fabricated titanium-implanted column is processed into an assembly.
The invention has the beneficial effects that: the large amount of data of each part of the component contained in the programmable data enables the two parts of the component to be processed simultaneously, and the manufacturing speed during manufacturing can be increased due to the comprehensiveness of the data.
As an embodiment of the present invention: the step of importing the programming data into a lathe, wherein the lathe performs cutting processing on a pre-manufactured titanium-implanted column which is configured in advance on the lathe by combining the programming data to obtain the assembly of the fixed bridge and the columnar attachment body, and the step of importing the programming data into the lathe further comprises the following steps:
setting a finished product model of the fixed bridge and a finished product model of the columnar attachment according to the programming data;
acquiring a first graph set of each surface of the finished product model of the fixed bridge and a second graph set of each surface of the finished product model of the columnar attachment;
when the fixed bridge and the columnar attachment after cutting are obtained, calculating a first overlapping rate of each surface of the fixed bridge after cutting and the first graph set; calculating a second overlapping rate of each surface of the machined and cut columnar attachment and the second graph set;
setting a waste overlapping rate range, a reprocessing overlapping rate range and a finished product overlapping rate range of the machined and cut fixed bridge and the columnar attachment according to the first overlapping rate and the second overlapping rate;
and judging whether the machined and cut fixed bridge and the columnar attachment belong to a waste overlapping rate range, a reprocessing overlapping rate range or a finished product overlapping rate range, and performing classification treatment.
The principle of the invention is as follows: during machining, the programmed data and the external interference of the machined finished product or the sharpness of the cutting tool, as well as the service time and the maintenance degree of the lathe may influence the machining. In this case, the present invention determines a finished product model, which is a theoretical finished product, by programming data, and the actual processing accuracy may be different, then obtains the pattern of each side of the finished product model, and then compares the fixed bridge and the columnar attachment after the near processing with the patterns of each side of the finished product model to obtain the overlap ratio. And finally, setting a waste overlapping rate range, a reprocessing overlapping rate range and a finished product overlapping rate range according to the overlapping rate, for example: the range of the overlapping rate of the waste products is 0 to 95 percent, the range of the overlapping rate of the reprocessing is 95 to 99 percent, and the range of the overlapping rate of the finished products is more than 99 percent.
The invention has the beneficial effects that: according to the invention, the processed finished products are distinguished according to the processing overlapping rate, the waste products are directly abandoned, and the reprocessed finished products can be continuously processed to generate new fixed bridges or columnar attachments, so that the finished products can be directly used. Through the distinguishing, the cost resource can be saved, and the processing efficiency is enhanced.
As an embodiment of the present invention: with the installation of column attachment with fixed bridge both sides obtain the subassembly of fixed bridge and column attachment includes:
obtaining a fixed bridge and a columnar attachment after cutting;
acquiring the shape, size and concave-convex information of the attached surface of the fixed bridge according to the fixed bridge;
acquiring the shape, size and concave-convex information of the attaching surface of the columnar attachment according to the columnar attachment;
determining the attaching information of the fixed bridge and the columnar attaching body according to the shape, the size and the concave-convex information of the attached surface and the shape, the size and the concave-convex information of the attached surface;
and the lathe is used for micromachining the fixed bridge and the columnar attachment again according to the attaching information.
The principle of the invention is as follows: in the primary and secondary processing process of the present invention, after the primary processing, the bonding state of the assembly is determined by the shape, size and concave-convex information of the bonded surface of the fixed bridge, the shape, size and concave-convex information of the bonded surface of the columnar adhesive body, and the fine adjustment is performed again on the connection portion.
The invention has the beneficial effects that: the secondary fine adjustment is a fine machining for the assembly, the assembly can be more accurate through the secondary fine adjustment, and the fixing capacity is stronger when the assembly is installed in the oral cavity.
As an embodiment of the present invention: the lathe is used for micromachining the fixed bridge and the columnar attachment again according to the attaching information, and the method comprises the following steps:
acquiring the attaching information, and determining a fixed bridge processing coordinate point set A and a columnar attachment processing coordinate point set B of the cut fixed bridge and the columnar attachment on a horizontal axis x, a vertical axis y and a vertical axis z of the three-dimensional image:
A＝{(x1,y1,z1),(x2,y2,z2)……(xi,yi,zi)}
B＝{(x1,y1,z1),(x2,y2,z2)……(xl,yl,zl)}
wherein, the xi,yi,ziRepresenting coordinates of the fixed bridge at the ith machining coordinate point; said xl,yl,zlThe coordinates of the columnar attachment at the first machining coordinate point are represented, i is 1,2,3, … … i, l is 1,2,3, … … l;
forming a first processing matrix Aa and a second processing matrix Bb according to the set of processing coordinate points:
Figure BDA0002502728400000171
Figure BDA0002502728400000172
calculating the attaching degree P of the first processing matrix Aa and the second processing matrix Bb,
Figure BDA0002502728400000173
wherein n represents the number of processing coordinate points of the fixed bridge and the columnar attachment in the first processing matrix Aa and the second processing matrix Bb;
according to the fitting degree, the fixed bridge processing coordinate point set A and the columnar attachment processing coordinate point set B, constructing a fixed bridge and columnar attachment fitting processing model:
Figure BDA0002502728400000181
wherein the AN is the reliability of the processing coordinate point of the fixed bridge, the BN is the reliability of the processing coordinate point of the columnar attachment, and G (A)iBl) The product of the ith processing coordinate point of the fixed bridge processing coordinate point set A and the ith processing coordinate point of the columnar attachment processing coordinate point set B is obtained;
according to the bonding processing model, when G is larger than or equal to 1, the processing degree of the bonding processing model is high, and fine adjustment is not needed;
according to the attaching processing model, when G is less than 1, the processing degree of the attaching processing model is indicated to be low, and fine adjustment is carried out after parameters of processing coordinate points are modified through the attaching processing model.
When a processed product is processed, according to the attaching information, determining processing coordinate points of the fixed bridge and the columnar attachment on a three-dimensional stereo coordinate system after cutting processing, constructing a processing matrix of the fixed bridge and the columnar attachment according to the processing coordinate points, finally solving the attaching degree of two connected products according to the processing matrix, and further constructing an attaching processing model of the fixed bridge and the columnar attachment according to the attaching degree: under the condition that the fitting machining model is determined, when a machining assembly needing fine adjustment is processed, only parameters of the machining coordinate point need to be modified, and then the fitting machining model is input into a lathe, and fine adjustment can be carried out on a machined finished product through the lathe.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A method of manufacturing an assembly of a fixation bridge and a cylindrical attachment for implanting screws, comprising:
measuring three-dimensional data of each part of the finished product cylindrical attachment by using a precision micrometer to obtain design parameters of the finished product cylindrical attachment, importing the design parameters into computer-aided three-dimensional design software, and obtaining STL data of the finished product cylindrical attachment;
acquiring a planting work model of the oral cavity of a patient, and determining oral cavity information of the patient;
importing the oral information into computer-aided implant design software to obtain a fixed bridge model of an implant screw;
importing the STL data into computer-aided planting design software to obtain a combined model of the fixed bridge and the columnar attachment, and determining the STL data of the combined model;
and importing the STL data of the combined model into CAM software to obtain programming data of the combined model, importing the programming data into a lathe, and processing a pre-prepared titanium column to be planted through the lathe according to the programming data to obtain the assembly of the fixed bridge and the columnar attachment.
2. The method for manufacturing an assembly of a fixing bridge and a cylindrical attachment for implanting screws as recited in claim 1, wherein the measuring three-dimensional data of each part of the finished cylindrical attachment by using a precision micrometer and determining the design parameters of the finished cylindrical attachment comprises:
presetting a finished product columnar attachment, and sequentially acquiring three-dimensional size data of each part of the finished product columnar attachment from left to right through a precision micrometer;
importing the three-dimensional size data into computer-aided 3D printing equipment to obtain a 3D three-dimensional model of the finished columnar attachment;
according to the 3D model, determining the columnar information of the non-attachment part and the attachment surface information of the attachment side of the finished columnar attachment;
and determining the design parameters of the finished columnar attachment according to the columnar information and the attachment surface information.
3. The method for manufacturing an assembly of a fixing bridge and a cylindrical attachment for implanting screws as claimed in claim 1, wherein obtaining an implantation work model of the oral cavity of the patient and determining information of the oral cavity of the patient comprises:
acquiring three-dimensional image information of the oral cavity of a patient, and establishing and obtaining a three-dimensional model of the oral cavity of the patient;
determining three-dimensional parameters of the oral cavity of the patient according to the three-dimensional model;
importing the three-dimensional parameters into 3D printing equipment to obtain a preoperative planting work model;
scanning the implant work model through a dental scanner to determine oral cavity information of the patient, wherein,
the oral cavity information includes: the information of the remaining teeth, the information of the gum, the information of the opposite jaw teeth and the information of the occlusion relation of the upper and lower teeth.
4. The method for manufacturing an assembly of a screw-implant fixation bridge and a cylindrical attachment according to claim 3, wherein the step of introducing the oral cavity information into a computer-aided implant design software to obtain a screw-implant fixation bridge model comprises:
importing the residual tooth information into computer-aided implant design software to obtain the number information of the fixing holes in the fixing bridge model of the implant screw;
importing the gum information into computer-aided implant design software to obtain curve radian information of the upper part of a fixed hole of a fixed bridge of the implant screw and bridge body information of the fixed bridge;
importing the information of the pair of jaw teeth and the occlusion information of the upper and lower teeth into computer-aided planting design software to obtain depth information of a fixed hole in a fixed bridge of the planting screw and hardness information of the fixed bridge;
and determining the fixed bridge model according to the fixed hole number information, the fixed hole upper part curve radian information, the fixed bridge body information, the fixed hole depth information and the fixed bridge hardness information.
5. The method for manufacturing an assembly of a fixing bridge and a cylindrical attachment for implanting screws as claimed in claim 1, wherein said step of importing STL data of said finished cylindrical attachment into computer aided implant design software to obtain a combined model of said fixing bridge and cylindrical attachment comprises:
constructing a symmetrical attachment model of the columnar attachment according to the STL data of the finished columnar attachment;
respectively symmetrically fixing the symmetrical attachment models on the left side and the right side of the fixed bridge model, and adjusting the fixing strength of the symmetrical attachment models;
and after the symmetrical attachment models are fixed on the left side and the right side of the fixed bridge model, constructing a combined model of the fixed bridge and the columnar attachment through computer-aided planting design software.
6. The method of claim 1, wherein the step of importing the STL data of the combined model into CAM software to obtain the programming data of the combined model comprises:
converting the STL data of the combined model into programmable data;
importing the programmable data into CAM software, performing programming operation and obtaining an operation result;
and acquiring programming data of the combined model according to the operation result.
7. The method for manufacturing a set of a fixing bridge and a columnar attachment for implanting a screw according to claim 1, wherein the programming data is introduced into a lathe, and the lathe performs cutting processing on a pre-formed titanium-implanted column disposed in advance on the lathe in combination with the programming data to obtain the set of the fixing bridge and the columnar attachment, the method comprising:
importing the programming data into a lathe, and determining the number of the fixed holes, the cutting depth, the smoothness and the cutting curve radian of the fixed holes in the fixed bridge by the lathe according to the programming data;
determining the surface smoothness and the cutting curve radian of the columnar attachment;
guiding the number of the fixing holes of the fixing bridge, the cutting depth, the smoothness and the cutting curve radian into the lathe, and performing cutting processing through a pre-configured pre-fabricated titanium column to obtain the fixing bridge;
guiding the surface smoothness and the cutting curve radian of the columnar attachment into the lathe, and performing cutting processing on a pre-prepared pre-planted titanium column to obtain a columnar attachment;
and installing the columnar attachment body on two sides of the fixed bridge to obtain the assembly of the fixed bridge and the columnar attachment body.
8. The method for manufacturing a set of a fixing bridge and a columnar attachment for implanting a screw according to claim 7, wherein the programming data is introduced into a lathe, and the lathe cuts a pre-fabricated titanium-implanted column prepared in advance on the lathe in combination with the programming data to obtain the set of the fixing bridge and the columnar attachment, further comprising:
setting a finished product model of the fixed bridge and a finished product model of the columnar attachment according to the programming data;
acquiring a first graph set of each surface of the finished product model of the fixed bridge and a second graph set of each surface of the finished product model of the columnar attachment;
when the fixed bridge and the columnar attachment after cutting are obtained, calculating a first overlapping rate of each surface of the fixed bridge after cutting and the first graph set; calculating a second overlapping rate of each surface of the machined and cut columnar attachment and the second graph set;
setting a waste overlapping rate range, a reprocessing overlapping rate range and a finished product overlapping rate range of the fixed bridge and the columnar attachment after machining and cutting according to the first overlapping rate and the second overlapping rate;
and judging whether the machined and cut fixed bridge and the columnar attachment belong to a waste overlapping rate range, a reprocessing overlapping rate range or a finished product overlapping rate range, and performing classification treatment.
9. The method for manufacturing a set of a fixing bridge and a columnar attachment for implanting a screw according to claim 1, wherein the programming data is introduced into a lathe, and the lathe cuts a pre-fabricated titanium-implanted column, which is previously disposed on the lathe, in combination with the programming data to obtain the set of the fixing bridge and the columnar attachment, further comprises:
obtaining a fixed bridge and a columnar attachment after cutting;
according to the fixed bridge after cutting, acquiring the shape, size and concave-convex information of the attached surface of the fixed bridge after cutting;
acquiring the shape, size and concave-convex information of the attaching surface of the cylindrical attachment body after cutting according to the cylindrical attachment body after cutting;
determining the attaching information of the fixed bridge and the columnar attachment according to the shape, the size and the concave-convex information of the attaching surface of the fixed bridge and the columnar attachment after cutting and the shape, the size and the concave-convex information of the attaching surface;
and the lathe is used for micromachining the fixed bridge and the columnar attachment again according to the attaching information.
10. The method for manufacturing an assembly of a screw-implanted fixation bridge and a cylindrical attachment according to claim 9, wherein the lathe is used for micromachining the fixation bridge and the cylindrical attachment again according to the fitting information, comprising the following steps:
according to the shape, size and concave-convex information of the attached surfaces of the fixed bridge and the columnar attachment after cutting, acquiring a fixed bridge processing coordinate point set A and a columnar attachment processing coordinate point set B of the fixed bridge after cutting on a three-dimensional image on a horizontal axis x, a vertical axis y and a vertical axis z:
A＝{(x1,y1,z1),(x2,y2,z2)……(xi,yi,zi)}
B＝{(x1,y1,z1),(x2,y2,z2)……(xl,yl,zl)}
wherein, the xi,yi,ziRepresenting coordinates of the fixed bridge at the ith machining coordinate point; said xl,yl,zlThe coordinates of the columnar attachment at the first machining coordinate point are represented, i is 1,2,3, … … i, l is 1,2,3, … … l;
forming a first processing matrix Aa and a second processing matrix Bb according to the set of processing coordinate points:
Figure FDA0002502728390000061
Figure FDA0002502728390000062
calculating the attaching degree P of the first processing matrix Aa and the second processing matrix Bb,
Figure FDA0002502728390000063
wherein n represents the number of processing coordinate points of the fixed bridge and the columnar attachment in the first processing matrix Aa and the second processing matrix Bb;
according to the fitting degree, the fixed bridge processing coordinate point set A and the columnar attachment processing coordinate point set B, constructing a fixed bridge and columnar attachment fitting processing model:
Figure FDA0002502728390000064
wherein the AN is the reliability of the processing coordinate point of the fixed bridge, the BN is the reliability of the processing coordinate point of the columnar attachment, and G (A)iBl) The product of the ith processing coordinate point of the fixed bridge processing coordinate point set A and the ith processing coordinate point of the columnar attachment processing coordinate point set B is obtained;
according to the bonding processing model, when G is larger than or equal to 1, the processing degree of the bonding processing model is high, and fine adjustment is not needed;
according to the attaching processing model, when G is less than 1, the processing degree of the attaching processing model is indicated to be low, and fine adjustment is carried out after parameters of processing coordinate points are modified through the attaching processing model.
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