CN112089499A - Impression screening method, manufacturing method of impression screening jig and impression screening jig - Google Patents
Impression screening method, manufacturing method of impression screening jig and impression screening jig Download PDFInfo
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- CN112089499A CN112089499A CN202011073554.6A CN202011073554A CN112089499A CN 112089499 A CN112089499 A CN 112089499A CN 202011073554 A CN202011073554 A CN 202011073554A CN 112089499 A CN112089499 A CN 112089499A
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- screening
- jig
- impression
- scanner
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/004—Means or methods for taking digitized impressions
- A61C9/0046—Data acquisition means or methods
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/34—Making or working of models, e.g. preliminary castings, trial dentures; Dowel pins [4]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
Abstract
The invention discloses a die screening method, a manufacturing method of a die screening jig and the die screening jig, wherein the die screening method comprises the following steps: manufacturing abutment fixtures with different heights and different diameters according to the screening test result of the historical gypsum abutment model; pouring the abutment fixture to obtain a die fixture, so that the die fixture has holes with different depths and different diameters; scanning the impression jig by using a scanner so as to determine the maximum scanning depth of the scanner; manufacturing a die screening jig with a corresponding length according to the maximum scanning depth of the scanner; and screening the impression by using the impression screening jig. The impression screening jig is manufactured according to the maximum scanning depth of the scanner, and the impression which can be scanned by the scanner is screened out by the impression screening jig, so that the impression scanning success rate is improved, and the impression scanning batch effect is realized.
Description
Technical Field
The invention relates to the technical field of orthodontic devices, in particular to an impression screening method, an impression screening jig manufacturing method and an impression screening jig.
Background
Currently, the scanning principle and the mechanical structure of a scanner commonly used in dentistry are different, and the depth angle capable of being scanned when a model is scanned is also different. For impression scanning, the conventional method generally scans through various scanners respectively, so that scanning is time-consuming and goods which can be scanned successfully cannot be selected quickly and accurately.
The scanning depth of the scanner is mainly related to the included angle of a lens and the distance from the lens to a scanning piece, and the position which cannot be clearly scanned is mainly at the position with smaller and deeper abutment teeth in the impression scanning process.
In addition, the scannable boundary of the scanner can be obtained only by batch scanning test, and meanwhile, the impression is also difficult to judge whether the scanning can be clear by naked eyes, so that the design and printing model of batch scanning cannot be realized.
Disclosure of Invention
The embodiment of the invention provides an impression screening method, a manufacturing method of an impression screening jig and the impression screening jig, aiming at improving the impression scanning success rate and further realizing the effect of impression scanning batch.
In a first aspect, an embodiment of the present invention provides an impression screening method, including:
manufacturing abutment fixtures with different heights and different diameters according to the screening test result of the historical gypsum abutment model;
pouring the abutment fixture to obtain a die fixture, so that the die fixture has holes with different depths and different diameters;
scanning the impression jig by using a scanner so as to determine the maximum scanning depth of the scanner;
manufacturing a die screening jig with a corresponding length according to the maximum scanning depth of the scanner;
and screening the impression by using the impression screening jig.
Further, the abutment fixture of different height, different diameters is made according to the screening test result to historical gypsum abutment model, include:
obtaining a plurality of historical gypsum-based tooth models with different heights and different diameters;
screening a plurality of historical gypsum-based tooth models, and selecting the historical gypsum-based tooth models with the height value occurrence frequency larger than a preset threshold value and the historical gypsum-based tooth models with the diameter value occurrence frequency larger than the preset threshold value;
and manufacturing abutment fixtures with different heights and different diameters according to the height and the diameter of the selected historical gypsum abutment model.
Furthermore, the diameter range of the abutment fixture is 3.5 mm-10.8 mm, and the height range is 5 mm-11 mm.
Further, the scanning the impression jig by using the scanner to determine the maximum scanning depth of the scanner includes:
scanning all holes of the impression jig by using the scanner;
when the scanner can scan to the bottommost part of a hole, judging that the scanning depth of the scanner is greater than or equal to the depth of the hole, and recording the depth of the hole;
when the scanner cannot scan the bottommost part of a hole, judging that the scanning depth of the scanner is smaller than the depth of the hole model, and recording the depth of the hole;
after the scanner scans all holes, comparing the depths of all holes which can be scanned to the bottommost part of the holes by the scanner, selecting the hole with the largest depth, and taking the depth of the hole as the maximum scanning depth of the scanner.
Further, the die screening tool including the screening tool body with set up in the screening tool probe of screening tool body front end, the screening tool probe including the screening cylinder with set up in the screening cone spare of screening cylinder front end, the screening cylinder with the total length of screening cone spare is first screening length, the length of screening cone spare is second screening length, according to the die screening tool of the corresponding length of the maximum scanning depth preparation of scanner includes:
taking the maximum scanning depth of the scanner as the first screening length, wherein the second screening length is smaller than the first screening length;
and manufacturing the impression screening jig according to the first screening length and the second screening length.
Further, the method comprises the following steps:
when the screening conical piece of the impression screening jig can reach the bottommost part of the hole of the impression, the impression is judged to be scannable;
and when the screening conical piece of the impression screening jig can not reach the bottommost part of the hole of the impression, judging that the impression can not be scanned.
Further, the method also comprises the following steps:
and scanning the impression which is judged to be scannable into digital model data by using a scanner, and manufacturing the denture prosthesis according to the digital model data.
In a second aspect, an embodiment of the present invention provides a method for manufacturing a die-screening jig, including:
manufacturing abutment fixtures with different heights and different diameters according to the screening test result of the historical gypsum abutment model;
pouring according to the abutment fixture to obtain a die fixture, so that the die fixture has holes with different depths and different diameters;
scanning the impression jig by using a scanner so as to determine the maximum scanning depth of the scanner;
and manufacturing a die screening jig with a corresponding length according to the maximum scanning depth of the scanner.
In a third aspect, an embodiment of the present invention provides a die screening jig, which is manufactured by the manufacturing method described above.
Further, the die screening tool including the screening tool body with set up in the screening tool probe of screening tool body front end, the screening tool probe including the screening cylinder with set up in the screening cone spare of screening cylinder front end, the screening cylinder with the total length of screening cone spare is first screening length, the length of screening cone spare is second screening length.
The embodiment of the invention provides a die screening method, a manufacturing method of a die screening jig and the die screening jig, wherein the die screening method comprises the following steps: manufacturing abutment fixtures with different heights and different diameters according to the screening test result of the historical gypsum abutment model; pouring the abutment fixture to obtain a die fixture, so that the die fixture has holes with different depths and different diameters; scanning the impression jig by using a scanner so as to determine the maximum scanning depth of the scanner; manufacturing a die screening jig with a corresponding length according to the maximum scanning depth of the scanner; and screening the impression by using the impression screening jig. According to the embodiment of the invention, the impression screening jig is manufactured according to the maximum scanning depth of the scanner, and the impression which can be scanned by the scanner is screened out by using the impression screening jig, so that the impression scanning success rate is improved, and the effect of batch impression scanning is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of an impression screening method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a method for manufacturing a die-screening jig according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a die screening jig according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic flow chart of a stamp screening method according to an embodiment of the present invention, which specifically includes: steps S101 to S105.
S101, manufacturing abutment fixtures with different heights and different diameters according to screening test results of historical gypsum abutment models;
s102, pouring the abutment fixture to obtain a die fixture, so that the die fixture has holes with different depths and different diameters;
s103, scanning the impression jig by using a scanner so as to determine the maximum scanning depth of the scanner;
s104, manufacturing a die screening jig with a corresponding length according to the maximum scanning depth of the scanner;
and S105, screening the impression by using the impression screening jig.
In this embodiment, at first, according to historical gypsum base tooth model make the abutment tool that has different height, different diameters, again according to the abutment tool makes the impression tool that has the hole of different degree of depth and diameter, then utilizes the scanner right the impression tool scans, and confirms according to the scanning result the maximum scanning depth of scanner, again according to the maximum scanning depth of scanner makes impression screening tool utilizes at last impression screening tool screens different impressions to the selection can be by the impression that the scanner scanned.
In the traditional denture prosthesis manufacturing process, a denture processing factory copies an impression into a plaster model according to the obtained impression, and after the plaster model is solidified, the plaster model is polished and split, and then the subsequent processes such as scanning and the like are carried out. In the existing digital manufacturing scheme, a scanner is used for directly scanning a gypsum model which is simply polished and is not subjected to segmentation treatment, so that the process of segmenting the model can be omitted, or a die is directly scanned, and the step of copying the gypsum model can be omitted, but when the gypsum model and the die are not segmented, a part of models which cannot be clearly scanned exist, particularly the die, and the models which cannot be scanned can cause the success rate of the digital manufacturing scheme to be reduced. In the embodiment, before the impression is scanned by the scanner, the impression which cannot be scanned is selected by using the impression screening jig, so that the situation that the impression cannot be scanned does not occur or rarely occurs when the impression is scanned by the scanner, and the success rate of digitally manufacturing the denture prosthesis scheme is greatly improved.
The impression described in this example is a jaw or tooth made of a gel material and filled with plaster to mimic existing oral structures; the abutment is the foundation of the fixed denture, which supports the fixed denture and transfers (jaw) forces, which the pontic bears during chewing, to the periodontal tissue to restore the chewing ability of the missing tooth.
In an embodiment, the manufacturing of abutment jigs with different heights and different diameters according to the screening test result of the historical gypsum abutment model includes:
obtaining a plurality of historical gypsum-based tooth models with different heights and different diameters;
screening a plurality of historical gypsum-based tooth models, and selecting the historical gypsum-based tooth models with the height value occurrence frequency larger than a preset threshold value and the historical gypsum-based tooth models with the diameter value occurrence frequency larger than the preset threshold value;
and manufacturing abutment fixtures with different lengths and different diameters according to the height and the diameter of the selected historical gypsum abutment model.
In this embodiment, a plurality of historical gypsum-based models with different heights and different diameters are obtained first, for example, the historical gypsum-based models are obtained in batch from a processing plant, and then the historical gypsum-based models with the height value frequency greater than a preset threshold (a first preset threshold) and the historical gypsum-based models with the diameter value frequency greater than a preset threshold (a second preset threshold different from the first preset threshold) are screened from the obtained historical gypsum-based models, that is, common heights and diameters of the abutment teeth are selected according to the historical gypsum-based models, and the abutment teeth jigs with different heights and different diameters are manufactured accordingly. For example, the first preset threshold is set to 3 times, when the frequency of occurrence of the historical gypsum-based tooth model with the abutment length of 5mm is 4 times, the abutment height of 5mm is selected as the height of one abutment in the abutment fixture, and when the frequency of occurrence of the historical gypsum-based tooth model with the abutment height of 3mm is 2 times, the historical gypsum-based tooth model with the abutment height of 3mm is rejected; and setting the second preset threshold value as 3 times, selecting the abutment with the diameter of 5mm as the diameter of one abutment in the abutment jig when the occurrence frequency of the historical gypsum-based tooth model with the diameter of 5mm is 4 times, and rejecting the historical gypsum-based tooth model with the diameter of 3mm when the occurrence frequency of the historical gypsum-based tooth model with the diameter of 3mm is 2 times.
In one embodiment, the abutment fixture has a diameter ranging from 3.5mm to 10.8mm and a height ranging from 5mm to 11 mm.
In this embodiment, the diameter range of the abutment fixture is set to be 3.5mm to 10.8mm, for example, in a specific application scenario, the diameters of the abutments on one side of the abutment fixture are 3.5mm, 3.8mm, 5.0mm, 6.2mm, 9.0mm, 10.8mm, and 8.6mm in sequence. The height range of the abutment jig is set to be 5 mm-11 mm, for example, in a specific application scene, the heights of abutments on one side of the abutment jig are 5mm, 7mm, 8mm, 9mm and 11mm in sequence.
In an embodiment, the scanning the impression jig by using a scanner to determine a maximum scanning depth of the scanner includes:
scanning all holes of the impression jig by using the scanner;
when the scanner can scan to the bottommost part of a hole, judging that the scanning depth of the scanner is greater than or equal to the depth of the hole, and recording the depth of the hole;
when the scanner cannot scan the bottommost part of a hole, judging that the scanning depth of the scanner is smaller than the depth of the hole model, and recording the depth of the hole;
after the scanner scans all holes, comparing the depths of all holes which can be scanned to the bottommost part of the holes by the scanner, selecting the hole with the largest depth, and taking the depth of the hole as the maximum scanning depth of the scanner.
In this embodiment, the scanner is used to scan the holes of the impression jig one by one, and the depth of the scanned holes is recorded. After all holes are scanned, comparing the depths of the holes from the scanner to the bottommost hole according to the recorded conditions, and then selecting the depth of the hole with the largest depth as the maximum scanning depth of the scanner.
In an embodiment, the die screening jig includes screening jig body and set up in the screening jig probe of screening jig body front end, screening jig probe including screening cylinder with set up in the screening cone spare of screening cylinder front end, screening cylinder with the total length of screening cone spare is first screening length, the length of screening cone spare is second screening length, according to the die screening jig of the corresponding length of the maximum scanning depth preparation of scanner includes:
taking the maximum scanning depth of the scanner as the first screening length, wherein the second screening length is smaller than the first screening length;
and manufacturing the impression screening jig according to the first screening length and the second screening length.
In this embodiment, when making the die screening jig according to the maximum scanning depth of scanner, because the die screening jig is in the use, is passed through the screening jig probe of die screening jig front end screens the die, consequently can with the maximum scanning depth of scanner is as the length of screening jig probe, promptly the screening cylinder with the total length of screening cone spare.
It should be noted that the diameter corresponding to the first screening length is larger than the diameter corresponding to the second screening length, that is, the diameter of the screening cylinder is larger than the diameter of the screening cone. In a specific application scenario, the first screening length is 7.10mm, the second screening length is 6.10mm, the diameter of the screening cylindrical part is 4.0mm, and the diameter of the screening conical part is 3.5 mm.
In an embodiment, the screening of the die by using the die screening jig includes:
when the screening conical piece of the impression screening jig can reach the bottommost part of the hole of the impression, the impression is judged to be scannable;
and when the screening conical piece of the impression screening jig can not reach the bottommost part of the hole of the impression, judging that the impression can not be scanned.
In this embodiment, with the screening cone spare of die screening tool can reach the hole bottommost of die as the standard whether the die can scan, is about to screening cone spare can reach the die that hole bottommost is judged and can be judged by the die that the scanner scanned, will screening cone spare can not reach the die that hole bottommost is judged and can not be judged by the die that the scanner scanned, so, can distinguish the die that can be scanned by the scanner fast to improve the scanning success rate of scanner.
In an embodiment, the impression screening method further comprises:
and scanning the impression which is judged to be scannable into digital model data by using a scanner, and manufacturing the denture prosthesis according to the digital model data.
In this embodiment, after the impression that can be scanned by the scanner is screened out by using the impression screening jig, the scanner scans the impression and acquires digital model data corresponding to the impression, so as to manufacture a corresponding denture prosthesis according to the acquired digital model data, thereby omitting a process of dividing a plaster model and improving the manufacturing efficiency of the denture prosthesis.
Fig. 2 is a schematic flow chart of a method for manufacturing a die-screening jig according to an embodiment of the present invention, which specifically includes: steps S201 to S204.
S201, manufacturing abutment fixtures with different heights and different diameters according to screening test results of historical gypsum abutment models;
s202, pouring according to the abutment fixture to obtain a die fixture, so that the die fixture has holes with different depths and different diameters;
s203, scanning the impression jig by using a scanner so as to determine the maximum scanning depth of the scanner;
and S204, manufacturing a die screening jig with a corresponding length according to the maximum scanning depth of the scanner.
Fig. 3 is a schematic structural diagram of a die screening jig according to an embodiment of the present invention, the die screening jig is manufactured by the above-mentioned manufacturing method.
In an embodiment, the die screening jig includes a screening jig body 31 and a screening jig probe 32 disposed at a front end of the screening jig body 31, the screening jig probe 32 includes a screening cylindrical member 321 and a screening conical member 322 disposed at a front end of the screening cylindrical member 321, a total length of the screening cylindrical member 321 and the screening conical member 322 is a first screening length, and a length of the screening conical member 322 is a second screening length.
Since the embodiments of the making method of the die screening jig and the die screening jig portion correspond to the embodiments of the die screening method portion, the embodiments of the making method of the die screening jig and the die screening jig portion are described in the embodiments of the die screening method portion, and are not repeated here.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A method of impression screening, comprising:
manufacturing abutment fixtures with different heights and different diameters according to the screening test result of the historical gypsum abutment model;
pouring the abutment fixture to obtain a die fixture, so that the die fixture has holes with different depths and different diameters;
scanning the impression jig by using a scanner so as to determine the maximum scanning depth of the scanner;
manufacturing a die screening jig with a corresponding length according to the maximum scanning depth of the scanner;
and screening the impression by using the impression screening jig.
2. The impression selecting method according to claim 1, wherein the manufacturing of the abutment jig having different heights and different diameters according to the selection test result of the historical gypsum abutment model comprises:
obtaining a plurality of historical gypsum-based tooth models with different heights and different diameters;
screening a plurality of historical gypsum-based tooth models, and selecting the historical gypsum-based tooth models with the height value occurrence frequency larger than a preset threshold value and the historical gypsum-based tooth models with the diameter value occurrence frequency larger than the preset threshold value;
and manufacturing abutment fixtures with different lengths and different diameters according to the height and the diameter of the selected historical gypsum abutment model.
3. The impression selecting method according to claim 2, wherein the abutment jig has a diameter ranging from 3.5mm to 10.8mm and a height ranging from 5mm to 11 mm.
4. The method of claim 1, wherein the scanning the impression jig with the scanner to determine a maximum scanning depth of the scanner comprises:
scanning all holes of the impression jig by using the scanner;
when the scanner can scan to the bottommost part of a hole, judging that the scanning depth of the scanner is greater than or equal to the depth of the hole, and recording the depth of the hole;
when the scanner cannot scan the bottommost part of a hole, judging that the scanning depth of the scanner is smaller than the depth of the hole model, and recording the depth of the hole;
after the scanner scans all holes, comparing the depths of all holes which can be scanned to the bottommost part of the holes by the scanner, selecting the hole with the largest depth, and taking the depth of the hole as the maximum scanning depth of the scanner.
5. The die screening method according to claim 1, wherein the die screening jig includes a screening jig body and a screening jig probe disposed at a front end of the screening jig body, the screening jig probe includes a screening cylindrical member and a screening conical member disposed at a front end of the screening cylindrical member, a total length of the screening cylindrical member and the screening conical member is a first screening length, a length of the screening conical member is a second screening length, and the die screening jig having a corresponding length is manufactured according to a maximum scanning depth of the scanner, including:
taking the maximum scanning depth of the scanner as the first screening length, wherein the second screening length is smaller than the first screening length;
and manufacturing the impression screening jig according to the first screening length and the second screening length.
6. The die screening method according to claim 5, wherein the screening of the die using the die screening jig includes:
when the screening conical piece of the impression screening jig can reach the bottommost part of the hole of the impression, the impression is judged to be scannable;
and when the screening conical piece of the impression screening jig can not reach the bottommost part of the hole of the impression, judging that the impression can not be scanned.
7. The stamp screening method as recited in claim 6, further comprising:
and scanning the impression which is judged to be scannable into digital model data by using a scanner, and manufacturing the denture prosthesis according to the digital model data.
8. A manufacturing method of a die screening jig is characterized by comprising the following steps:
manufacturing abutment fixtures with different lengths and different diameters according to the screening test result of the historical gypsum abutment model;
pouring according to the abutment fixture to obtain a die fixture, so that the die fixture has holes with different depths and different diameters;
scanning the impression jig by using a scanner so as to determine the maximum scanning depth of the scanner;
and manufacturing a die screening jig with a corresponding length according to the maximum scanning depth of the scanner.
9. A die-screening jig produced by the production method according to claim 8.
10. The die screening jig of claim 9, wherein the die screening jig comprises a screening jig body and a screening jig probe disposed at a front end of the screening jig body, the screening jig probe comprises a screening cylindrical member and a screening conical member disposed at a front end of the screening cylindrical member, a total length of the screening cylindrical member and the screening conical member is a first screening length, and a length of the screening conical member is a second screening length.
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| CN104398309A (en) * | 2014-12-19 | 2015-03-11 | 杨刚 | Method for intraoral optical impression of oral dental implant |
| CN109387159A (en) * | 2018-09-30 | 2019-02-26 | 先临三维科技股份有限公司 | Determine the method and device of the 3 d scan data of impression molds |
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