CN113693752A - Scanning device for scanning tooth body - Google Patents
Scanning device for scanning tooth body Download PDFInfo
- Publication number
- CN113693752A CN113693752A CN202111013933.0A CN202111013933A CN113693752A CN 113693752 A CN113693752 A CN 113693752A CN 202111013933 A CN202111013933 A CN 202111013933A CN 113693752 A CN113693752 A CN 113693752A
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- Prior art keywords
- scanning
- dental
- dental cast
- arc
- shaped connecting
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- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
-
- 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
- A61C9/0093—Workpiece support
Abstract
The invention relates to the technical field of dental body scanning devices, in particular to a scanning device for scanning a dental body. The technical scheme is as follows: including the scanning host computer with rotate connect in the scanning host computer inner room be used for the centre gripping dental cast the dental cast mount and carry out the first scanning head that scans to the dental cast, the dental cast mount includes the chassis board and rotates the upper ledge board of connecting in the chassis board top, chassis board and upper ledge board are connected with the upper and lower jaw of dental cast respectively, the upper surface of chassis board rotates and is connected with the screw thread post. According to the design of the T-shaped connecting arm, the arc-shaped connecting arm, the second scanning head and the like, the inner part of the dental cast can be conveniently and comprehensively scanned in a rotating mode; this application not only can make the upper and lower jaw of dental cast open through the design of screw post and screw sleeve isotructure, can drive T shape linking arm rebound simultaneously to can stretch into the arc linking arm and carry out the inside scanning in the open dental cast.
Description
Technical Field
The invention relates to the technical field of dental body scanning devices, in particular to a scanning device for scanning a dental body.
Background
The tooth body scanning device mainly is the device that scans the dental cast, and tooth body scanning device mainly includes the organism, is used for driving the rotatory roating seat of dental cast and carries out the scanning head that scans to the dental cast, and current tooth body scanning device mainly is for scanning the dental cast outside, when needs scan the dental cast inside, and current tooth body scanning device's roating seat is difficult to carry out comprehensive scanning through rotatory mode to the dental cast inside.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a scanning device for scanning a dental body, which can comprehensively scan the interior of a dental cast.
The technical scheme of the invention is as follows: a scanning device for scanning a dental body comprises a scanning host machine, a dental model fixing frame which is rotationally connected with an inner chamber of the scanning host machine and is used for clamping a dental model, and a first scanning head for scanning the dental model, the dental cast fixing frame comprises a bottom frame plate and an upper frame plate which is rotationally connected with the top of the bottom frame plate, the bottom frame plate and the upper frame plate are respectively connected with the upper jaw and the lower jaw of the dental cast, the upper surface of the bottom frame plate is rotationally connected with a threaded column, the top end of the threaded column is in threaded fit and sleeved with a threaded sleeve, the outer surface of the threaded sleeve is fixedly connected with a pair of guide cylinders, one of the guide cylinders is movably sleeved with a screw shaft, the other guide cylinder is movably sleeved with a guide shaft, the end parts of the screw shaft and the guide shaft are fixedly connected with the T-shaped connecting arm together, the end part of the T-shaped connecting arm is connected with the arc-shaped connecting arm in a sliding way, the upper surfaces of the two ends of the arc-shaped connecting arm are fixedly connected with a second scanning head used for scanning the inside of the dental cast.
Preferably, the end part of the guide cylinder is rotatably connected with a threaded rotary sleeve, and the threaded rotary sleeve is in threaded connection with the threaded shaft.
Preferably, a gear is rotatably connected inside the T-shaped connecting arm, and a tooth capable of being meshed and connected with the gear is arranged on the outer annular surface of the arc-shaped connecting arm.
Preferably, the outer surface of the arc-shaped connecting arm is provided with a sliding groove, and the inner wall of the T-shaped connecting arm is fixedly connected with a sliding block which can be in sliding connection with the sliding groove.
Preferably, the lower surface of the upper frame plate is fixedly connected with a pair of positioning rods, and the top of the threaded sleeve is provided with a positioning groove capable of being movably sleeved with the positioning rods.
Preferably, the scanning host computer rotates and is scarfed with the carousel, just the bottom of dental cast mount is through minor axis and rotary disk fixed connection.
Preferably, the upper frame plate is rotatably connected with the top end of the bottom frame plate through a rotating shaft, and the top end of the bottom frame plate is provided with an arc-shaped sliding groove matched with the rotating shaft.
Preferably, the upper surfaces of the two ends of the arc-shaped connecting arm are fixedly connected with a threaded short shaft, and the second scanning head is in threaded connection with the threaded short shaft.
Compared with the prior art, the invention has the beneficial effects that:
(1): the existing dental model scanning device mainly scans the outer part of a dental model, when the inner part of the dental model needs to be scanned, the rotating base of the existing dental model scanning device is difficult to scan the inner part of the dental model in a rotating mode, and the design of the structures such as the T-shaped connecting arm, the arc-shaped connecting arm and the second scanning head is convenient for scanning the inner part of the dental model in a rotating mode;
(2): this application not only can make the upper and lower jaw of dental cast open through the design of screw post and screw sleeve isotructure, can drive T shape linking arm rebound simultaneously to can stretch into the arc linking arm and carry out the inside scanning in the open dental cast.
Drawings
FIG. 1 is a schematic diagram of the structure of one embodiment of the present invention;
FIG. 2 is a schematic diagram of a portion of the structure of FIG. 1;
FIG. 3 is a schematic view of a portion of the structure of FIG. 2;
fig. 4 is a schematic structural diagram of a fourth embodiment.
Reference numerals: 1. scanning the host; 2. a dental model fixing frame; 3. a dental cast; 4. a first scanning head; 5. rotating the disc; 6. a threaded post; 7. a threaded sleeve; 8. a guide cylinder; 9. a screw shaft; 10. a guide shaft; 11. a T-shaped connecting arm; 12. an arc-shaped connecting arm; 13. a second scanning head; 14. a chute; 15. a gear; 16. positioning a rod; 17. positioning a groove; 18. screwing the thread; 19. a micro motor; 21. a chassis plate; 22. an upper frame plate.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1-3, the scanning device for scanning dental bodies according to the present invention comprises a main scanning unit 1, a dental cast fixing frame 2 rotatably connected to an inner chamber of the main scanning unit 1 for holding a dental cast 3, and a first scanning head 4 for scanning the dental cast 3, wherein the dental cast fixing frame 2 comprises a bottom frame plate 21 and an upper frame plate 22 rotatably connected to the top of the bottom frame plate 21, the main scanning unit 1 is rotatably embedded with a rotary table 5, the rotary table 5 drives the dental cast fixing frame 2 to rotate, thereby driving the dental cast 3 to rotate, thereby scanning the dental cast 3 from different directions by the first scanning head 4, and the bottom of the dental cast fixing frame 2 is fixedly connected to the rotary table 5 through a short shaft. The upper frame plate 22 is rotatably connected with the top end of the bottom frame plate 21 through a rotating shaft, and the top end of the bottom frame plate 21 is provided with an arc-shaped sliding groove matched with the rotating shaft;
In this embodiment, when the inside of the dental cast 3 needs to be scanned, the threaded post 6 is rotated first, the threaded post 6 is connected to the threaded sleeve 7 through the screw thread screwing and the positioning action between the positioning rod 16 and the positioning groove 17, so as to cause the threaded sleeve 7 to move upwards, one side of the threaded sleeve 7 jacks up the upper frame plate 22, the upper frame plate 22 drives the upper jaw of the dental cast 3 to rotate upwards and open, meanwhile, the threaded sleeve 7 can drive the T-shaped connecting arm 11 and the arc-shaped connecting arm 12 to move upwards to the opening of the dental cast 3 when moving upwards, and then the threaded sleeve 18 can be rotated, the threaded shaft 9 drives the T-shaped connecting arm 11 to move towards the dental cast 3 through the screw thread screwing and the connection between the threaded sleeve 18 and the threaded shaft 9, so that the arc-shaped connecting arm 12 extends into the dental cast 3, and then the arc-shaped connecting arm 12 is moved, because the sliding groove 14 is of an arc-shaped structure similar to the dental cast, the arc-shaped structure 12 can drive the second scanning head connecting arm 13 to rotate and move along the tooth distribution direction of the dental cast 3 Further, the inside of the dental cast 3 is scanned comprehensively, and the operation is simple.
Example two
As shown in fig. 1-3, the scanning device for scanning dental bodies according to the present invention comprises a main scanning unit 1, a dental cast fixing frame 2 rotatably connected to an inner chamber of the main scanning unit 1 for holding a dental cast 3, and a first scanning head 4 for scanning the dental cast 3, wherein the dental cast fixing frame 2 comprises a bottom frame plate 21 and an upper frame plate 22 rotatably connected to the top of the bottom frame plate 21, the main scanning unit 1 is rotatably embedded with a rotary table 5, the rotary table 5 drives the dental cast fixing frame 2 to rotate, thereby driving the dental cast 3 to rotate, thereby scanning the dental cast 3 from different directions by the first scanning head 4, and the bottom of the dental cast fixing frame 2 is fixedly connected to the rotary table 5 through a short shaft. The upper frame plate 22 is rotatably connected with the top end of the bottom frame plate 21 through a rotating shaft, and the top end of the bottom frame plate 21 is provided with an arc-shaped sliding groove matched with the rotating shaft; bottom frame plate 21 and upper frame plate 22 are connected with the upper and lower jaw of dental cast 3 respectively, the upper surface of bottom frame plate 21 rotates and is connected with screw post 6, screw sleeve 7 has been cup jointed to 6 top threads of screw post soon, a pair of guide cylinder 8 of 7 outer fixed surface of screw sleeve, one of them 8 movable sleeve of guide cylinder is equipped with spiral shaft 9, another 8 movable sleeve of guide cylinder are equipped with guiding axle 10, the common and 11 fixed connection of T shape linking arm of tip of spiral shaft 9 and guiding axle 10, the tip sliding connection of T shape linking arm 11 has arc linking arm 12, the equal fixedly connected with of surface is used for carrying out the second scanning head 13 that scans to the inside of dental cast 3 on the both ends of arc linking arm 12. The tip of guide cylinder 8 rotates and is connected with screw thread cover 18 soon, just screw thread cover 18 closes with the spiral shell axle 9 screw thread soon and is connected, the lower fixed surface of upper frame plate 22 is connected with a pair of locating lever 16, the constant head tank 17 that can cup joint with the activity of locating lever 16 is seted up at threaded sleeve 7 top. The outer surface of the arc-shaped connecting arm 12 is provided with a sliding groove 14, and the inner wall of the T-shaped connecting arm 11 is fixedly connected with a sliding block which can be in sliding connection with the sliding groove 14.
Compared with the first embodiment, the present embodiment further includes: the inside of the T-shaped connecting arm 11 is rotatably connected with a gear 15, and the outer annular surface of the arc-shaped connecting arm 12 is provided with a tooth capable of being meshed and connected with the gear 15.
In this embodiment, on the basis of the first embodiment, the gear 15 is rotated, and the gear 15 and the arc-shaped connecting arm 12 are engaged and connected to drive the arc-shaped connecting arm 12 to move uniformly and stably, so that the scanning is more stable and fine.
EXAMPLE III
As shown in fig. 1-3, the scanning device for scanning dental bodies according to the present invention comprises a main scanning unit 1, a dental cast fixing frame 2 rotatably connected to an inner chamber of the main scanning unit 1 for holding a dental cast 3, and a first scanning head 4 for scanning the dental cast 3, wherein the dental cast fixing frame 2 comprises a bottom frame plate 21 and an upper frame plate 22 rotatably connected to the top of the bottom frame plate 21, the main scanning unit 1 is rotatably embedded with a rotary table 5, the rotary table 5 drives the dental cast fixing frame 2 to rotate, thereby driving the dental cast 3 to rotate, thereby scanning the dental cast 3 from different directions by the first scanning head 4, and the bottom of the dental cast fixing frame 2 is fixedly connected to the rotary table 5 through a short shaft. The upper frame plate 22 is rotatably connected with the top end of the bottom frame plate 21 through a rotating shaft, and the top end of the bottom frame plate 21 is provided with an arc-shaped sliding groove matched with the rotating shaft; bottom frame plate 21 and upper frame plate 22 are connected with the upper and lower jaw of dental cast 3 respectively, the upper surface of bottom frame plate 21 rotates and is connected with screw post 6, screw sleeve 7 has been cup jointed to 6 top threads of screw post soon, a pair of guide cylinder 8 of 7 outer fixed surface of screw sleeve, one of them 8 movable sleeve of guide cylinder is equipped with spiral shaft 9, another 8 movable sleeve of guide cylinder are equipped with guiding axle 10, the common and 11 fixed connection of T shape linking arm of tip of spiral shaft 9 and guiding axle 10, the tip sliding connection of T shape linking arm 11 has arc linking arm 12, the equal fixedly connected with of surface is used for carrying out the second scanning head 13 that scans to the inside of dental cast 3 on the both ends of arc linking arm 12. The tip of guide cylinder 8 rotates and is connected with screw thread cover 18 soon, just screw thread cover 18 closes with the spiral shell axle 9 screw thread soon and is connected, the lower fixed surface of upper frame plate 22 is connected with a pair of locating lever 16, the constant head tank 17 that can cup joint with the activity of locating lever 16 is seted up at threaded sleeve 7 top. The outer surface of the arc-shaped connecting arm 12 is provided with a sliding groove 14, and the inner wall of the T-shaped connecting arm 11 is fixedly connected with a sliding block which can be in sliding connection with the sliding groove 14. The inside of the T-shaped connecting arm 11 is rotatably connected with a gear 15, and the outer annular surface of the arc-shaped connecting arm 12 is provided with a tooth capable of being meshed and connected with the gear 15. The gear 15 is connected with the T-shaped connecting arm 11 through rotation of the rotating shaft, the T-shaped connecting arm 11 is penetrated through the rotating shaft, the micro motor 19 is fixedly connected to the upper portion of the T-shaped connecting arm 11 through the motor frame, and an output shaft of the micro motor 19 is fixedly connected with the rotating shaft through a coupler.
Compared with the second embodiment, the present embodiment further includes: the upper surfaces of the two ends of the arc-shaped connecting arm 12 are fixedly connected with a threaded short shaft, and the second scanning head 13 is connected with the threaded short shaft in a threaded screwing mode. Therefore, the detachable connection of the second scanning head 13 on the arc-shaped connecting arm 12 can be realized, and the second scanning head 13 is convenient to overhaul or replace.
Example four
As shown in fig. 1, 2 and 4, the scanning device for scanning a dental body according to the present invention includes a main scanning unit 1, a dental model fixing frame 2 rotatably connected to an inner chamber of the main scanning unit 1 for holding a dental model 3, and a first scanning head 4 for scanning the dental model 3, wherein the dental model fixing frame 2 includes a bottom frame plate 21 and an upper frame plate 22 rotatably connected to a top of the bottom frame plate 21, the main scanning unit 1 is rotatably engaged with a rotary table 5, the rotary table 5 drives the dental model fixing frame 2 to rotate, thereby driving the dental model 3 to rotate, thereby scanning the impression model 3 from different directions by the first scanning head 4, and a bottom of the dental model fixing frame 2 is fixedly connected to the rotary table 5 through a short axis. The upper frame plate 22 is rotatably connected with the top end of the bottom frame plate 21 through a rotating shaft, and the top end of the bottom frame plate 21 is provided with an arc-shaped sliding groove matched with the rotating shaft; bottom frame plate 21 and upper frame plate 22 are connected with the upper and lower jaw of dental cast 3 respectively, the upper surface of bottom frame plate 21 rotates and is connected with screw post 6, screw sleeve 7 has been cup jointed to 6 top threads of screw post soon, a pair of guide cylinder 8 of 7 outer fixed surface of screw sleeve, one of them 8 movable sleeve of guide cylinder is equipped with spiral shaft 9, another 8 movable sleeve of guide cylinder are equipped with guiding axle 10, the common and 11 fixed connection of T shape linking arm of tip of spiral shaft 9 and guiding axle 10, the tip sliding connection of T shape linking arm 11 has arc linking arm 12, the equal fixedly connected with of surface is used for carrying out the second scanning head 13 that scans to the inside of dental cast 3 on the both ends of arc linking arm 12. The tip of guide cylinder 8 rotates and is connected with screw thread cover 18 soon, just screw thread cover 18 closes with the spiral shell axle 9 screw thread soon and is connected, the lower fixed surface of upper frame plate 22 is connected with a pair of locating lever 16, the constant head tank 17 that can cup joint with the activity of locating lever 16 is seted up at threaded sleeve 7 top. The outer surface of the arc-shaped connecting arm 12 is provided with a sliding groove 14, and the inner wall of the T-shaped connecting arm 11 is fixedly connected with a sliding block which can be in sliding connection with the sliding groove 14. The inside of the T-shaped connecting arm 11 is rotatably connected with a gear 15, and the outer annular surface of the arc-shaped connecting arm 12 is provided with a tooth capable of being meshed and connected with the gear 15.
Compared with the first, second or third embodiment, this embodiment further includes: the gear 15 is connected with the T-shaped connecting arm 11 through rotation of the rotating shaft, the T-shaped connecting arm 11 is penetrated through the rotating shaft, the micro motor 19 is fixedly connected to the upper portion of the T-shaped connecting arm 11 through the motor frame, and an output shaft of the micro motor 19 is fixedly connected with the rotating shaft through a coupler.
In this embodiment, micro motor 19's output shaft drives the pivot rotatory, and the pivot drives gear 15 rotatory, and then drives arc linking arm 12 rotatory, can realize through micro motor 19 that electronic drive arc linking arm 12 removes, and it is more accurate convenient than in manual rotatory mode, and can insert scanning device's main system with micro motor 19's control system to can control arc linking arm 12 autogiration, it is more intelligent.
Exemplary embodiments of the proposed solution of the present disclosure have been described in detail above with reference to several preferred embodiments, however, it will be understood by those skilled in the art that many variations and modifications may be made to the specific embodiments described above, and that many combinations of the various technical features and structures presented in the present disclosure may be made without departing from the concept of the present disclosure, without departing from the scope of the present disclosure, which is defined by the appended claims.
Claims (8)
1. The utility model provides a scanning device for scanning tooth body, includes scanning host computer (1) and rotates the first scanning head (4) that is connected in the dental model mount (2) that are used for centre gripping dental model (3) of scanning host computer (1) inner chamber and scans dental model (3), its characterized in that: dental cast mount (2) include chassis board (21) and rotate and connect in the last frame board (22) at chassis board (21) top, chassis board (21) and last frame board (22) are connected with the upper and lower jaw of dental cast (3) respectively, the upper surface of chassis board (21) rotates and is connected with screw post (6), screw post (6) top screw thread closes soon and has cup jointed threaded sleeve (7), threaded sleeve (7) outer fixed surface is connected with a pair of guide cylinder (8), one of them guide cylinder (8) movable sleeve is equipped with spiral shell axle (9), another guide cylinder (8) movable sleeve is equipped with guiding axle (10), the tip of spiral shell axle (9) and guiding axle (10) is common and T shape linking arm (11) fixed connection, the tip sliding connection of T shape linking arm (11) has arc linking arm (12), the equal fixed surface connection in the both ends of arc linking arm (12) is used for carrying out the inside of dental cast linking arm (3) and carries out A second scanning head (13) for scanning.
2. A scanning device for scanning dental bodies according to claim 1, characterized in that a threaded sleeve (18) is rotatably connected to the end of the guide cylinder (8), and the threaded sleeve (18) is threadedly connected to the threaded shaft (9).
3. A scanning device for scanning a dental body as claimed in claim 1 or 2, characterized in that a gear (15) is rotatably connected to the inside of the T-shaped connecting arm (11), and the outer circumferential surface of the arc-shaped connecting arm (12) is provided with a tooth-engaging member which can be engaged with the gear (15).
4. The scanning device for scanning the tooth body according to claim 1 or 2, wherein the outer surface of the arc-shaped connecting arm (12) is provided with a sliding groove (14), and the inner wall of the T-shaped connecting arm (11) is fixedly connected with a sliding block which can be slidably connected with the sliding groove (14).
5. The scanning device for scanning the teeth according to claim 1 or 2, wherein a pair of positioning rods (16) is fixedly connected to the lower surface of the upper frame plate (22), and a positioning slot (17) capable of being movably sleeved with the positioning rods (16) is formed at the top of the threaded sleeve (7).
6. The scanning device for scanning dental bodies according to claim 1, wherein the scanning main body (1) is rotatably embedded with a rotating disc (5), and the bottom of the dental cast fixing frame (2) is fixedly connected with the rotating disc (5) through a short shaft.
7. The scanning device for scanning the dental prosthesis according to claim 1 or 2, wherein the upper frame plate (22) is rotatably connected to the top end of the bottom frame plate (21) through a rotating shaft, and the top end of the bottom frame plate (21) is provided with an arc-shaped sliding slot matched with the rotating shaft.
8. A scanning device for scanning a dental body as claimed in claim 1 or 2, wherein a threaded stub is fixedly connected to the upper surface of each end of the arc-shaped connecting arm (12), and the second scanning head (13) is screwed with the threaded stub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111013933.0A CN113693752A (en) | 2021-08-31 | 2021-08-31 | Scanning device for scanning tooth body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111013933.0A CN113693752A (en) | 2021-08-31 | 2021-08-31 | Scanning device for scanning tooth body |
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| Publication Number | Publication Date |
|---|---|
| CN113693752A true CN113693752A (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111013933.0A Pending CN113693752A (en) | 2021-08-31 | 2021-08-31 | Scanning device for scanning tooth body |
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| CN (1) | CN113693752A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060154198A1 (en) * | 2005-01-11 | 2006-07-13 | Duane Durbin | 3D dental scanner |
| US20170333163A1 (en) * | 2015-03-10 | 2017-11-23 | Terrats Medical, S.L. | Dental scanning post and method for the mounting and fixing thereof on a dental implant or a replica of same |
| CN108601516A (en) * | 2016-02-01 | 2018-09-28 | 马尔科·马丁 | Dental imaging device and method for chronophotography stamp |
| CN112525105A (en) * | 2021-01-27 | 2021-03-19 | 滕州市安川自动化机械有限公司 | All-round three-dimensional scanner |
| CN112690918A (en) * | 2020-12-21 | 2021-04-23 | 北京圣爱吉友和义齿制作有限公司 | Digital scanning method for denture plaster model |
-
2021
- 2021-08-31 CN CN202111013933.0A patent/CN113693752A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060154198A1 (en) * | 2005-01-11 | 2006-07-13 | Duane Durbin | 3D dental scanner |
| US20170333163A1 (en) * | 2015-03-10 | 2017-11-23 | Terrats Medical, S.L. | Dental scanning post and method for the mounting and fixing thereof on a dental implant or a replica of same |
| CN108601516A (en) * | 2016-02-01 | 2018-09-28 | 马尔科·马丁 | Dental imaging device and method for chronophotography stamp |
| US20200155087A1 (en) * | 2016-02-01 | 2020-05-21 | Marco Martin | Dental imager and method for recording photographic impressions |
| CN112690918A (en) * | 2020-12-21 | 2021-04-23 | 北京圣爱吉友和义齿制作有限公司 | Digital scanning method for denture plaster model |
| CN112525105A (en) * | 2021-01-27 | 2021-03-19 | 滕州市安川自动化机械有限公司 | All-round three-dimensional scanner |
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Application publication date: 20211126 |