CN111529093A - Intraoral scanning rod for repairing dental post core or post core crown and manufacturing method thereof - Google Patents
Intraoral scanning rod for repairing dental post core or post core crown and manufacturing method thereof Download PDFInfo
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- CN111529093A CN111529093A CN202010436286.3A CN202010436286A CN111529093A CN 111529093 A CN111529093 A CN 111529093A CN 202010436286 A CN202010436286 A CN 202010436286A CN 111529093 A CN111529093 A CN 111529093A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000005516 engineering process Methods 0.000 claims abstract description 20
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 19
- 238000007781 pre-processing Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 17
- 230000007547 defect Effects 0.000 abstract description 7
- 230000008439 repair process Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 6
- 210000004262 dental pulp cavity Anatomy 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
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- 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
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- 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
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- 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
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- 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
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- 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
- B33Y80/00—Products made by additive manufacturing
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Abstract
The invention discloses an intraoral scanning rod for repairing a dental post-core or post-core crown, comprising: the rod body is arranged in the root pressing groove of the tooth; the core part is arranged at the upper end of the rod body, and the diameter of the core part is larger than that of the rod body. The invention also discloses a manufacturing method of the intraoral scanning rod for repairing the dental post core or the post core crown, which is manufactured by scanning a lathe needle to obtain 3D data and applying the 3D data to a cutting technology, namely, applying a digital technology to the oral repair, solves the problem of casting defects which are difficult to solve in the traditional casting technology, and also solves the problem that part of materials can only be processed through a casting process.
Description
Technical Field
The invention relates to the technical field of clinical tooth restoration treatment, in particular to an intraoral scanning rod for restoration of a dental post core or a post core crown and a manufacturing method thereof.
Background
In the existing technology for repairing the dental post core and the post core crown, a traditional casting method or a semi-finished product sold in the market is adopted. In the traditional casting technology, the manufacturing period is long, and the manufacturing process is complex; the finished pile core sold in the market is single in material and form and is difficult to adapt to the individual requirements of patients.
Therefore, there is a need for an intraoral scan rod for dental core or core crown restoration that at least partially solves the problems of the prior art.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides an intraoral scan rod for dental core or core crown restoration, comprising:
the rod body is arranged in the root pressing groove of the tooth;
the core part is arranged at the upper end of the rod body, and the diameter of the core part is larger than that of the rod body.
Preferably, a slope surface is arranged on the core part, and an included angle between the slope surface and the axial diameter of the rod body is 30-60 degrees.
Preferably, a slope surface is arranged on the core part, and an included angle between the slope surface and the axial diameter of the rod body is 45 degrees.
Preferably, a through hole is formed in the core part, the through hole is located below the slope surface, the inner diameter of the through hole is 1.0mm, and the center distance between the through hole and the upper end of the core part is 3.0 mm.
Preferably, wherein the diameter of the rod body is 0.9-1.75 mm; the lower end of the rod body is conical.
The invention provides a method for manufacturing an intraoral scanning rod for repairing a dental post core or a post core crown, which comprises the following steps:
the method comprises the following steps: scanning a needle used by a dentist by using 3D scanning equipment to obtain 3D data of an intraoral scanning rod corresponding to the needle;
secondly, manufacturing an entity corresponding to the intraoral scanning rod by adopting a cutting technology according to the 3D data;
and step three, inputting the 3D data into oral scanning software, so that the oral scanning software can be conveniently identified and subsequently manufactured.
Preferably, the dental prosthetic material is used as the entity for manufacturing the intraoral scan bar in the second step.
Preferably, the solid in the second step comprises a rod body and a core part, wherein a slope surface is arranged on the core part, and an included angle between the slope surface and the axial diameter of the rod body is 30-60 degrees; the core part is provided with a through hole, the through hole is located below the slope surface, the inner diameter of the through hole is 1.0mm, and the center distance of the through hole is 3.0mm from the upper end of the core part.
Preferably, the 3D data is STL data, the cutting technique is a machine tool cutting technique, programming is performed on the 3D data by using preset data processing programming software to obtain programming data for manufacturing the entity, the programming data is imported into a machine tool, and the machine tool cuts a preset blank according to the programming data to obtain the entity.
Preferably, in the second step, when the entity corresponding to the intraoral scanning rod is manufactured by adopting a cutting technology according to the 3D data, the 3D data needs to be preprocessed, and then the intraoral scanning software identifies, regulates and manufactures the preprocessed data; the pre-processing comprises:
a1, determining the 3D data;
wherein D is the 3D data set, β2An information data set for the tooth to be restored, β1Information data set for the left tooth of the tooth to be restored, β3An information data set for the right tooth of the tooth to be restored, dijJ-th information data representing i teeth, i having a value of 1,2,3, j having a value from 1 to n, and d when i is 1ijJ (j) th information data representing a tooth on the left side of the tooth to be restored, when i is 2, dijJ information data representing tooth to be restored, i is 3, dijJ information data representing a tooth on the right side of the tooth to be restored; the information data set at least comprises position data of teeth, size data of the teeth, radian data of the surfaces of the teeth and tooth inclination angle data;
a2, preprocessing the 3D data according to the following formula;
in the above formula, λjReference data for the jth information data of the tooth to be restored, bijAs 3D data DijPre-processing the data;
a3, obtaining a data adjusting parameter range according to the following formula;
θj＝(γj,αj)
in the above formula, θjAdjusting parameter ranges for the jth information data, αjAdjusting the upper limit of the parameter, gamma, for the jth information datajFor j information dataA data conditioning parameter lower limit;
a4, comparing the reference data lambdajAnd the data adjustment parameter range thetajTransmitted to the oral scanning software.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the intraoral scanning rod for repairing the dental post core or the post core crown and the manufacturing method thereof adopt the method of scanning a lathe needle to obtain 3D data and then applying the 3D data to the cutting technology for manufacturing, namely, the digitalized technology is applied to the oral repair, thereby solving the problem of the casting defect which is difficult to solve in the traditional casting technology and solving the limitation that part of materials can only be processed by the casting technology.
Other advantages, objects, and features of the intraoral scan rod for dental post-core or post-core crown restoration and method of making the same of the present invention will be set forth in part in the description which follows and in part will become apparent to those skilled in the art upon examination and practice of the invention.
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 schematic structural view of an intraoral scanning rod for dental post-core or post-core crown restoration according to the present invention.
Fig. 2 is another structural diagram of the force of the intraoral scan rod for dental post-core or post-core crown restoration according to the present invention.
Fig. 3 is a schematic structural view of a rod body in the intraoral scanning rod for repairing a dental post or post crown according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-3, the present invention provides an intraoral scan rod for dental post-core or post-core crown restoration, comprising:
the rod body is arranged in the root pressing groove of the tooth;
the core part is arranged at the upper end of the rod body, and the diameter of the core part is larger than that of the rod body.
The working principle of the technical scheme is as follows: due to various reasons, the large-area defect of the crown part of the tooth even the tooth root is affected, and because the amount of the residual tooth body tissues is small, the whole crown cannot be singly used for obtaining good retention. In order to increase the retention, a part of the prosthesis is inserted into the root canal to obtain the retention, the part of the prosthesis inserted into the root canal is called a post, the part outside the root canal is called a core, and the post and the core made by the casting method are integrated and called a post core. Such crown prostheses that are staked into the root canal to achieve retention are known as post core crowns, referred to as post crowns. The invention provides an intraoral scanning rod for repairing a dental post core or a post core crown, which is manufactured by scanning a lathe needle to obtain 3D data and applying the 3D data to a cutting technology, wherein the intraoral scanning rod mainly comprises a rod body and a core part, and when the intraoral scanning rod is used, a dentist uses the lathe needle to polish and drill a tooth part needing to be repaired of a patient so that the rod body is inserted into a root canal of the tooth, and the rod body is a 'post'; the nucleus, here "nucleus", remains outside and represents the part outside the root canal; the dentist then performs crown repair. In addition, as shown in fig. 3, the rod body 1 is shown, and the dentist can also use the rod body 1 alone to perform tooth repair, and the detailed principle is not repeated.
The beneficial effects of the above technical scheme are that: the pile core manufactured in the traditional casting process is easy to generate defects such as shrinkage cavity, shrinkage porosity, incomplete casting, bubbles and the like in the casting process or during metal cooling, and the existence of the defects causes the strength reduction of the pile core and influences the service life of a restoration body; the intraoral scanning rod for repairing the dental post core or the post core crown provided by the invention scans a lathe needle to obtain 3D data, and then the 3D data is applied to the cutting technology for manufacturing, namely, the digital technology is applied to the intraoral repair, so that the problem of casting defects which are difficult to solve in the traditional casting technology is solved, and the limitation that part of materials can only be processed through the casting technology is also solved.
In one embodiment, the core is provided with a slope surface, and the included angle between the slope surface and the axial diameter of the rod body is 30-60 degrees.
The working principle and the beneficial effects of the technical scheme are as follows: the slope surface is manufactured on the core part, so that the dentist can conveniently align the collected intraoral data with the scanning rod data in intraoral scanning software of a designer, namely, the slope surface has a positioning function in design; the diameter of the slope surface and the axial line of the rod body is 30-60 degrees, and the slope surface is also convenient to design and manufacture.
In one embodiment, a slope surface is arranged on the core part, and an included angle between the slope surface and the axial diameter of the rod body is 45 degrees.
The working principle and the beneficial effects of the technical scheme are as follows: the included angle between the slope surface and the axial diameter of the rod body is 45 degrees, wherein the area of the slope surface is the largest at 45 degrees, and the alignment is easier to realize.
In one embodiment, as shown in fig. 2, a through hole is formed in the core, the through hole is located below the slope surface, the inner diameter of the through hole is 1.0mm, and the center of the through hole is 3.0mm away from the upper end of the core.
The working principle of the technical scheme is as follows: be provided with the through-hole on nuclear portion, the through-hole is located the below of ramp surface, and the internal diameter is 1.0mm to the center-to-center distance nuclear portion of through-hole is 3.0mm, and the through-hole mainly used passes the safety line, prevents that intraoral scanning rod from falling into the respiratory track when intraoral operation, causes the injury to the patient.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, designed the through-hole in this embodiment on nuclear portion, the through-hole mainly used passes the safety line, prevents that intraoral scanning rod from falling into the respiratory track when intraoral operation, causes the injury to the patient.
In one embodiment, the diameter of the rod body is 0.9-1.75 mm; the lower end of the rod body is conical.
The working principle of the technical scheme is as follows: as shown in FIG. 1, the rod body is a vertical cylinder and is a parallel pile, and the diameter of the rod body is 0.9-1.75mm, such as 0.9mm, 1.00mm, 1.14mm, 1.25mm, 1.40mm, 1.50mm and 1.75 mm.
The beneficial effects of the above technical scheme are that: through the design of the structure, the embodiment provides various diameter parameters of the rod body during parallel pile, and the requirements of different patients are met; the multiple diameter parameters of the rod body during conical pile is also provided, so that the conical pile is suitable for different patient needs.
In one embodiment, a method of making an intraoral scan rod for dental core or core crown restoration, comprising the steps of:
the method comprises the following steps: scanning a needle used by a dentist by using 3D scanning equipment to obtain 3D data of an intraoral scanning rod corresponding to the needle;
secondly, manufacturing an entity corresponding to the intraoral scanning rod by adopting a cutting technology according to the 3D data;
and step three, inputting the 3D data into oral scanning software, so that the oral scanning software can be conveniently identified and subsequently manufactured.
Further, the entity for manufacturing the intraoral scan rod in the second step is made of dental prosthetic materials.
Furthermore, the solid in the second step comprises a rod body and a core part, wherein a slope surface is arranged on the core part, and an included angle between the slope surface and the diameter of the axis of the rod body is 30-60 degrees; the core part is provided with a through hole, the through hole is located below the slope surface, the inner diameter of the through hole is 1.0mm, and the center distance of the through hole is 3.0mm from the upper end of the core part.
Further, the 3D data is STL data, the cutting technique is a machine tool cutting technique, programming is performed on the 3D data by using preset data processing programming software to obtain programming data for manufacturing the entity, the programming data is imported into a machine tool, and the machine tool cuts a preset blank according to the programming data to obtain the entity.
Further, in the second step, when an entity corresponding to the intraoral scanning rod is manufactured by adopting a cutting technology according to the 3D data, the 3D data needs to be preprocessed, and then the oral scanning software carries out recognition, regulation and control and manufacture according to the preprocessed data; the pre-processing comprises:
a1, determining the 3D data;
wherein D is the 3D data set, β2An information data set for the tooth to be restored, β1Information data set for the left tooth of the tooth to be restored, β3An information data set for the right tooth of the tooth to be restored, dijJ-th information data representing i teeth, i having a value of 1,2,3, j having a value from 1 to n, and d when i is 1ijJ (j) th information data representing a tooth on the left side of the tooth to be restored, when i is 2, dijJ information data representing tooth to be restored, i is 3, dijJ information data representing a tooth on the right side of the tooth to be restored; the information data set at least comprises position data of teeth, size data of the teeth, radian data of the surfaces of the teeth and tooth inclination angle data;
a2, preprocessing the 3D data according to the following formula;
in the above formula, λjReference data for the jth information data of the tooth to be restored, bijAs 3D data DijPre-processing the data;
a3, obtaining a data adjusting parameter range according to the following formula;
θj＝(γj,αj)
in the above formula, θjAdjusting parameter ranges for the jth information data, αjAdjusting the upper limit of the parameter, gamma, for the jth information datajAdjusting a lower limit of a parameter for the jth information data;
a4, comparing the reference data lambdajAnd the data adjustment parameter range thetajTransmitted to the oral scanning software.
Has the advantages that: according to the technical scheme, when the entity corresponding to the intraoral scanning rod is manufactured according to the 3D data by adopting a cutting technology, the 3D data is preprocessed, and then the intraoral scanning software identifies, regulates and controls and manufactures the preprocessed data, so that the manufactured entity object has small error, and the reference data and the data regulating parameter range of the preprocessed acquired information data can enable the intraoral scanning software to finely regulate data regulating parameters on the entity object identified by the reference data, so that more accurate entity data can be acquired, and the entity meeting the actual standard can be manufactured.
The manufacturing method of the intraoral scanning rod for repairing the dental post core or the post core crown has the following advantages:
1. the bottleneck that no intraoral scanning rod exists at present is solved. The intraoral scanning rod manufactured by the invention changes the restoration of the prior dental post core and the post core crown which can only be realized by the traditional casting mode into the realization by a digital (3D printing or cutting) processing mode;
2. the problem that a plurality of pipes, the pile cores and the pile core crowns in different in-place directions cannot be directly manufactured through digital processing (3D printing or cutting) is solved, and particularly the defect problem of all-ceramic casting materials such as zirconium dioxide is solved.
3. Establishes the data sharing of the oral clinical operation and the oral laboratory, simplifies the clinical operation of dentists, shortens the times of the patients' visit and relieves the pains of the patients.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. An intraoral scan rod for dental post or post crown restoration, comprising:
the rod body is arranged in the root pressing groove of the tooth;
the core part is arranged at the upper end of the rod body, and the diameter of the core part is larger than that of the rod body.
2. The intraoral scan rod for dental post-core or post-core crown restoration according to claim 1, wherein a slope is provided on the core, the slope having an angle of 30 ° -60 ° with respect to the axial diameter of the rod body.
3. The intraoral scan rod for dental post-core or post-core crown restoration according to claim 2, wherein a ramp surface is provided on the core, the ramp surface having an angle of 45 ° with the axial diameter of the rod body.
4. The intraoral scanning rod for dental post-core or post-core crown restoration according to claim 2, characterized in that a through hole is provided on the core, the through hole is located below the slope surface, the inner diameter of the through hole is 1.0mm, and the center of the through hole is 3.0mm from the upper end of the core.
5. The intraoral scanning rod for dental post-core or post-core crown restoration according to claim 1, characterized in that the rod body has a diameter of 0.9-1.75 mm; the lower end of the rod body is conical.
6. A method for manufacturing an intraoral scanning rod for dental post-core or post-core crown restoration, characterized by comprising the following steps:
the method comprises the following steps: scanning a needle used by a dentist by using 3D scanning equipment to obtain 3D data of an intraoral scanning rod corresponding to the needle;
secondly, manufacturing an entity corresponding to the intraoral scanning rod by adopting a cutting technology according to the 3D data;
and step three, inputting the 3D data into oral scanning software, so that the oral scanning software can be conveniently identified and subsequently manufactured.
7. The method of claim 6 wherein the solid body in step two comprises a shank and a core, the core is provided with a slope, and the diameter of the slope and the axial line of the shank is 30-60 °; the core part is provided with a through hole, the through hole is located below the slope surface, the inner diameter of the through hole is 1.0mm, and the center distance of the through hole is 3.0mm from the upper end of the core part.
8. The method of claim 6 wherein the body used to fabricate the intraoral scan rod in step two is dental restorative material.
9. The method of claim 6, wherein the 3D data is STL data and the cutting technique is machine tool cutting technique, the 3D data is programmed by using preset data processing programming software to obtain programming data for making the entity, the programming data is imported into a machine tool, and the machine tool cuts a preset blank according to the programming data to obtain the entity.
10. The method for manufacturing an intraoral scanning rod for dental post-core or post-core crown restoration according to claim 6, wherein in the second step, when an entity corresponding to the intraoral scanning rod is manufactured by using a cutting technique according to the 3D data, the 3D data needs to be preprocessed, and then the oral scanning software performs recognition, regulation and control and manufacture according to the preprocessed data; the pre-processing comprises:
a1, determining the 3D data;
wherein D is the 3D data set, β2An information data set for the tooth to be restored, β1Information data set for the left tooth of the tooth to be restored, β3An information data set for the right tooth of the tooth to be restored, dijJ-th information data representing i teeth, i having a value of 1,2,3, j having a value from 1 to n, and d when i is 1ijJ (j) th information data representing a tooth on the left side of the tooth to be restored, when i is 2, dijJ information data representing tooth to be restored, i is 3, dijJ information data representing a tooth on the right side of the tooth to be restored; the information data set at least comprises position data of teeth, size data of the teeth, radian data of the surfaces of the teeth and tooth inclination angle data;
a2, preprocessing the 3D data according to the following formula;
in the above formula, λjReference data for the jth information data of the tooth to be restored, bijAs 3D data DijPre-processing the data;
a3, obtaining a data adjusting parameter range according to the following formula;
θj＝(γj,αj)
in the above formula, θjAdjusting parameter ranges for the jth information data, αjIs the jthData-conditioning parameter upper limit, gamma, of the information datajAdjusting a lower limit of a parameter for the jth information data;
a4, comparing the reference data lambdajAnd the data adjustment parameter range thetajTransmitted to the oral scanning software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436286.3A CN111529093B (en) | 2020-05-21 | 2020-05-21 | Intraoral scanning rod for dental stump or stump crown restoration and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436286.3A CN111529093B (en) | 2020-05-21 | 2020-05-21 | Intraoral scanning rod for dental stump or stump crown restoration and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111529093A true CN111529093A (en) | 2020-08-14 |
| CN111529093B CN111529093B (en) | 2024-06-21 |
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| CN202010436286.3A Active CN111529093B (en) | 2020-05-21 | 2020-05-21 | Intraoral scanning rod for dental stump or stump crown restoration and manufacturing method thereof |
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| CN (1) | CN111529093B (en) |
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| CN114681084A (en) * | 2022-04-02 | 2022-07-01 | 江苏福隆数齿科技有限公司 | Digital manufacturing method and manufacturing system for dental post-core prosthesis |
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| CN111529093B (en) | 2024-06-21 |
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