CN112833813B - Uninterrupted scanning method for three-dimensional scanning in multi-tooth-position mouth - Google Patents
Uninterrupted scanning method for three-dimensional scanning in multi-tooth-position mouth Download PDFInfo
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- CN112833813B CN112833813B CN202011611182.8A CN202011611182A CN112833813B CN 112833813 B CN112833813 B CN 112833813B CN 202011611182 A CN202011611182 A CN 202011611182A CN 112833813 B CN112833813 B CN 112833813B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 210000004513 dentition Anatomy 0.000 claims abstract description 27
- 230000036346 tooth eruption Effects 0.000 claims abstract description 27
- 210000002455 dental arch Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
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Abstract
The invention relates to an uninterrupted scanning method for three-dimensional scanning in a multi-tooth-position mouth, which comprises the following steps: scanning the occlusal surface part of the dentition, scanning the other side of the dentition from one side of the dentition to the other side of the dentition one by one, and obtaining data Do above the outline height point line of the occlusal surface and the cheek-tongue surface of each tooth; respectively scanning the buccal side surface and the lingual side surface of the dentition in the same dentition sequence, splicing the nearest three-dimensional image at a certain time node to a Do by taking buccal surface data or lingual surface data in the Do as a common area if two adjacent images cannot be spliced at the certain time node, and obtaining buccal surface data Db and lingual surface data Dl of the dentition without pause in scanning operation; respectively registering Db and Dl to Do, and performing supplementary scanning Dc on the individual region; and integrally fusing Do, db, dl and Dc to obtain complete scan data of dentition. The invention can avoid the phenomenon of scanning interruption of the traditional intraoral three-dimensional scanner and effectively improve the clinical application efficiency and the user experience.
Description
Technical Field
The invention relates to a three-dimensional scanning structure, in particular to an uninterrupted scanning method for three-dimensional scanning in a multi-tooth-position mouth.
Background
At present various intraoral three-dimensional scanners, in the continuous scanning process of cheek tongue face, when handheld scanning head translation rate was too fast, very easily leaded to two adjacent image unable normal concatenation and leaded to the scanning to break off, current scanning technique need get back to last scanning position again and rescan, just can continue. Therefore, the clinical application efficiency is low, and doctors and patients feel that the scanning process is complex, time-consuming and unsmooth.
Disclosure of Invention
The invention aims to provide an uninterrupted scanning method for intraoral three-dimensional scanning of multiple tooth positions, which can avoid the phenomenon that the conventional intraoral three-dimensional scanner frequently has scanning interruption, and effectively improve the clinical application efficiency and the user experience without reducing the scanning precision.
In order to achieve the purpose, the invention has the following technical scheme:
the invention discloses an uninterrupted scanning method for three-dimensional scanning in a multi-tooth-position mouth, which comprises the following steps of:
1) Firstly, three-dimensional scanning is carried out on the occlusal surface part of the dentition, the end of the other side is scanned tooth by tooth from the end point of one side of the dentition along the dental arch curve, and three-dimensional surface data Do above the outline high-point line of each tooth occlusal surface and each cheek-tongue surface is obtained;
2) Then, respectively scanning the buccal side surface and the lingual side surface of the dentition in the same dentition sequence, and if two adjacent images cannot be spliced at a certain time node in the scanning process, splicing the closest three-dimensional image at the time node to Do by using buccal surface data or lingual surface data in the Do as a common area, but the scanning operation is not stopped, so as to obtain three-dimensional scanning data Db of the buccal surface and three-dimensional scanning data Dl of the lingual surface of the dentition;
3) Further, respectively registering Db and Dl to Do, and performing supplementary scanning Dc aiming at the individual regions;
4) Finally, do, db, dl and Dc are integrated to obtain complete scan data of dentition.
The supplementary scanning in the step 3) is to perform different angle scanning on the individual teeth needing to be restored so as to obtain more images of the individual teeth needing to be restored.
Wherein, the last three-dimensional image in the step 2) refers to a three-dimensional image before the time node in the step 2) and a three-dimensional image after the time node.
The invention has the advantages that: the phenomenon that the scanning of the conventional intraoral three-dimensional scanner is interrupted frequently can be avoided, and the clinical application efficiency and the user experience are effectively improved while the scanning precision is not reduced.
Drawings
FIG. 1 is a block diagram of the workflow of the present invention.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, the uninterrupted scanning method for intraoral three-dimensional scanning of multiple tooth spaces of the present invention comprises the following steps:
1) Firstly, three-dimensional scanning is carried out on the occlusal surface part of the dentition, the end of the other side is scanned tooth by tooth from the end point of one side of the dentition along the dental arch curve, and three-dimensional surface data Do above the outline high-point line of each tooth occlusal surface and each cheek-tongue surface is obtained;
2) Then, respectively scanning the buccal side surface and the lingual side surface of the dentition in the same dentition sequence, and if two adjacent images cannot be spliced at a certain time node in the scanning process, splicing the closest three-dimensional image at the time node to Do by using buccal surface data or lingual surface data in the Do as a common area, but the scanning operation is not stopped, so as to obtain three-dimensional scanning data Db of the buccal surface and three-dimensional scanning data Dl of the lingual surface of the dentition;
3) Further, respectively registering Db and Dl to Do, and performing supplementary scanning Dc aiming at the individual region;
4) Finally, do, db, dl and Dc are integrated to obtain complete scan data of dentition.
The supplementary scanning in the step 3) is to perform different angle scanning on the individual teeth needing to be restored so as to obtain more images of the individual teeth needing to be restored.
The latest three-dimensional image in the step 2) refers to a three-dimensional image before the time node in the step 2) and a three-dimensional image after the time node.
The scanner is a blue field IOS-11 intraoral three-dimensional scanner, but is not limited to this scanner. The scanner is provided with a programmable controller or a control device.
As described above, the present invention can be more fully realized. The above description is only a reasonable embodiment of the present invention, and the scope of the present invention includes but is not limited to the above description, and any insubstantial modifications of the technical solution of the present invention by those skilled in the art are included in the scope of the present invention.
Claims (2)
1. An uninterrupted scanning method for intraoral three-dimensional scanning of multiple sites, comprising the steps of:
1) Firstly, three-dimensionally scanning the occlusal surface part of the dentition, and scanning the end of the other side of the dentition one by one along an arch curve from the end point of one side of the dentition to obtain three-dimensional surface data Do above an outline high point line of each tooth occlusal surface and a cheek-tongue surface;
2) Then, respectively scanning the buccal side surface and the lingual side surface of the dentition in the same dentition sequence, and if two adjacent images cannot be spliced at a certain time node in the scanning process, splicing the closest three-dimensional image at the time node to Do by using buccal surface data or lingual surface data in the Do as a common area, but the scanning operation is not stopped, so as to obtain three-dimensional scanning data Db of the buccal surface and three-dimensional scanning data Dl of the lingual surface of the dentition;
3) Further, respectively registering Db and Dl to Do, and performing supplementary scanning Dc aiming at the individual regions;
4) Finally, do, db, dl and Dc are integrally fused to obtain complete scan data of dentition;
the latest three-dimensional image in the step 2) refers to a three-dimensional image before the time node in the step 2) and a three-dimensional image after the time node.
2. The uninterrupted scanning method for intraoral three-dimensional scanning of multiple sites according to claim 1, characterized in that: the supplementary scanning in the step 3) is to perform different angle scanning on the individual teeth needing to be restored so as to obtain more images of the individual teeth needing to be restored.
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| CN202011611182.8A CN112833813B (en) | 2020-12-30 | 2020-12-30 | Uninterrupted scanning method for three-dimensional scanning in multi-tooth-position mouth |
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| CN202011611182.8A CN112833813B (en) | 2020-12-30 | 2020-12-30 | Uninterrupted scanning method for three-dimensional scanning in multi-tooth-position mouth |
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| CN112833813B true CN112833813B (en) | 2022-10-18 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8035637B2 (en) * | 2006-01-20 | 2011-10-11 | 3M Innovative Properties Company | Three-dimensional scan recovery |
| US10098713B2 (en) * | 2013-03-14 | 2018-10-16 | Ormco Corporation | Scanning sequence for an intra-oral imaging system |
| CN106806030B (en) * | 2015-11-30 | 2018-08-10 | 北京大学口腔医学院 | A kind of crown root threedimensional model fusion method |
| US10136972B2 (en) * | 2016-06-30 | 2018-11-27 | Align Technology, Inc. | Historical scan reference for intraoral scans |
| CN108665533A (en) * | 2018-05-09 | 2018-10-16 | 西安增材制造国家研究院有限公司 | A method of denture is rebuild by tooth CT images and 3 d scan data |
| CN109544685B (en) * | 2018-10-16 | 2023-06-02 | 北京大学口腔医学院 | Efficient virtual reconstruction method for tooth dentition function aesthetic morphology |
| CN109793482B (en) * | 2019-01-07 | 2022-06-21 | 苏州佳世达光电有限公司 | Oral cavity scanning device and control method thereof |
| JP6936826B2 (en) * | 2019-03-18 | 2021-09-22 | 株式会社モリタ製作所 | Image processing equipment, display system, image processing method, and image processing program |
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Inventor after: Sun Yuchun Inventor after: Jiang Tengfei Inventor after: Chen Xiaojun Inventor after: Ma Chao Inventor after: Wang Yong Inventor after: Zhou Yongsheng Inventor after: Xu Yi Inventor after: Chen Hu Inventor after: Zhang Yaopeng Inventor after: Ke Yifang Inventor after: Zhai Wenru Inventor after: Zhao Xiaobo Inventor before: Sun Yuchun Inventor before: Wang Yong Inventor before: Zhou Yongsheng Inventor before: Xu Yi Inventor before: Chen Hu Inventor before: Zhang Yaopeng Inventor before: Ke Yifang Inventor before: Zhai Wenru |
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Effective date of registration: 20240612 Address after: 100191 No. 22, Zhongguancun South Street, Haidian District, Beijing Patentee after: PEKING University SCHOOL OF STOMATOLOGY Country or region after: China Patentee after: SHINING 3D TECH Co.,Ltd. Address before: 100081 room 507, 5 / F, block a, Zhongguancun Science and technology development building, 32 Zhongguancun South Street, Haidian District, Beijing Patentee before: PEKING University SCHOOL OF STOMATOLOGY Country or region before: China |