Oral cavity omni-directional scanning and positioning device for tooth implantation

Abstract

The utility model discloses an oral cavity all-dimensional scanning and positioning device for tooth implantation, and relates to the technical field of tooth implantation, the oral cavity all-dimensional scanning and positioning device comprises gingiva and an implant fixed in the gingiva, the upper part of the implant is provided with a positioning shell, the upper part of the positioning shell is provided with a groove and a concave point, one side of the positioning shell is provided with a through groove, and the through groove is provided with a through hole; an abutting limiting mechanism is arranged in the middle of the transmission shaft and comprises an upper supporting plate movably arranged in the middle of the transmission shaft in a penetrating mode, sliding plates are arranged on the two sides of the interior of the upper supporting plate in a sliding mode, and rubber limiting blocks are fixedly arranged on the sides, away from the transmission shaft, of the sliding plates; the fastening mechanism comprises a lower supporting plate movably arranged on the lower portion of the transmission shaft in a penetrating mode, and barb type fastening plates are rotationally connected to the two sides of the lower supporting plate. The problems that no obvious feature scanning points exist in the oral cavity of an edentulous jaw patient and the splicing point position error of a traditional scanning and positioning device is large, so that accurate data is influenced are solved.

Description

Technical Field

[0001] The present application relates to the field of dental implant technology, and in particular to an oral omnidirectional scanning and positioning device for dental implants. Background Art

[0002] In the field of dental implants, the treatment of edentulous patients has always been a challenge, especially the impression-taking process after implant surgery, which is very difficult. Due to the lack of teeth, edentulous patients do not have enough fixation points in the mouth, making it difficult for traditional impression materials to remain stable and prone to deformation or displacement, resulting in impression failure. In addition, the oral mucosa of edentulous patients is more sensitive, and the discomfort during the impression-taking process is more obvious. These factors increase the difficulty and uncertainty of impression-taking; moreover, the traditional impression-taking process cannot completely replicate the oral mucosa, and incorrect oral pressure can also lead to problems with the accuracy of the impression; some patients have limited oral conditions and poor swallowing ability, which may all lead to risks during the impression-taking process.

[0003] The industry has also been exploring the use of oral scanning equipment to scan the intraoral conditions of edentulous patients. However, due to the lack of teeth, intraoral scanning usually relies on teeth as reference points for scanning. In addition, the oral mucosa of edentulous patients is relatively smooth and lacks sufficient feature points, making it difficult for scanning equipment to capture accurate three-dimensional data. If a traditional scanning rod is used for positioning scanning, given the long scanning path of the edentulous dental arch, there is no way to obtain all the data at once. It is necessary to splice data images of multiple points to form complete scan data. This splicing will inevitably lead to accumulated errors and inaccurate data cannot be obtained. Utility Model Content

[0004] In order to improve the problem that there are no obvious characteristic scanning points in the oral cavity of edentulous patients and the traditional scanning and positioning device has large errors in the splicing points that affect accurate data, the present application provides an oral omnidirectional scanning and positioning device for dental implants.

[0005] The present application provides an oral omnidirectional scanning and positioning device for dental implants, which adopts the following technical solutions:

[0006] An oral omnidirectional scanning and positioning device for dental implants, comprising gums and an implant fixed within the gums, characterized in that: a positioning housing is provided on the upper portion of the implant, the upper portion of the positioning housing being provided with grooves and concave points that facilitate scanning features, a through-groove is provided on a side of the positioning housing away from the grooves and concave points, a transmission shaft is rotatably provided within the through-groove, a knob is fixed to the upper portion of the transmission shaft, and an abutment limit mechanism is provided in the middle portion of the transmission shaft;

[0007] The abutment and limiting mechanism includes an upper support plate movably arranged through the middle of the transmission shaft, two slides with the same structure and installation method are slidably arranged on both sides of the upper support plate, and rubber limit blocks with the same structure and installation method and abutting against the inner wall of the through groove are fixed on the side of the two slides away from the transmission shaft;

[0008] A fastening mechanism is provided at the lower part of the transmission shaft, and the fastening mechanism includes a lower support plate movably arranged through the lower part of the transmission shaft, and two hook-type fastening plates with the same structure and installation method are connected on both sides of the lower support plate. Racks are respectively provided on one side of the two hook-type fastening plates. A gear rotatably arranged in the middle of the inner cavity of the lower support plate is meshed between the two racks, and the middle part of the gear is fixedly passed through the transmission shaft.

[0009] By employing this technical solution, the grooves and concave points provided on the positioning housing, as well as the curvature of the positioning housing itself, enable the scanning process to accurately capture the oral structure of edentulous patients, including the morphology and position of the alveolar bone. This allows doctors to accurately plan implant surgeries based on the scan results, improving surgical success rates and patient satisfaction. Furthermore, the interaction between the abutment and fastening mechanisms simplifies the installation process of the positioning housing, further streamlining the process and improving work efficiency.

[0010] Preferably, the abutment limiting mechanism also includes a fixed slide groove opened in the middle of both sides of the upper support plate, and the side walls on both sides of the two fixed slide grooves are provided with T-shaped slide grooves with the same structure, and the two T-shaped slide grooves are internally provided with T-shaped slide rods fixed to the side walls of the skateboard for sliding against each other.

[0011] By adopting the above technical solution, the T-shaped slide groove and the T-shaped slide bar are arranged to slide against each other, which makes it easier for the skateboard to slide in the fixed slide groove and restricts the skateboard in the fixed slide groove so that the two will not separate during the activity.

[0012] Preferably, the upper parts of the two slides away from the rubber limiting block are fixed with limiting rods of the same structure, and an elliptical protrusion fixedly provided with and penetrating the transmission shaft is abutted between the two limiting rods.

[0013] By adopting the above technical solution, the cooperation between the limiting rod and the elliptical protrusion can make the rubber limiting block abut against the through groove more firmly, and when the positioning housing is pushed in the reverse direction, the elliptical protrusion and the limiting rod will not separate.

[0014] Preferably, two first springs are fixedly provided on the side of the two slides away from the rubber limiting block and are fixedly connected to the side wall of the fixed sliding groove on one side of the slide.

[0015] By adopting the above technical solution, the spring can help the slide plate return to its original position after losing the thrust, so that the rubber limit block can be taken away from the side wall of the through groove.

[0016] Preferably, the fastening mechanism further comprises a second spring fixed to the middle of the surface of the two opposite sides of the two barbed hook-shaped fastening plates.

[0017] By adopting the above technical solution, the second spring can enable the lower part of the barbed fastening plate to always maintain an inward angle, which is convenient for pre-fixation of the implant.

[0018] Preferably, a rotating shaft is movably provided on the upper portion of the barb-type fastening plate, and vertical fixing rods connected to the barb-type fastening plate are movably provided on both ends of the rotating shaft.

[0019] By adopting the above technical solution, the rotation shaft and the vertical fixing rod cooperate with each other to provide a lever effect for the barb-type fastening plate, so that the barb-type fastening plate can rotate around the rotation shaft.

[0020] Preferably, support rings with the same structure and installation method are fixed to the upper and lower parts of the vertical fixing rod, and the outer ring surface of the support ring abuts against the inner ring surface of the through groove.

[0021] By adopting the above technical solution, the support ring can provide support and guidance for the positioning shell, and can help the positioning shell and the implant to be better docked.

[0022] Preferably, a scale line for improving scanning accuracy and precise distance is provided in the middle of the upper surface of the positioning housing.

[0023] By adopting the above technical solution, the scale lines can help doctors make more accurate judgments and analyses of the patient's oral conditions on the display, while enabling manufacturers to better understand the dimensions that need to be produced.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The grooves and concave points on the upper part of the positioning shell and the curvature of the side design of the positioning shell can make the soft and hard tissue morphology and color inside the mouth appear in real time, which is conducive to communication between doctors and patients. In addition, the data can be easily transmitted to the denture factory.

[0026] 2. With the help of the support ring and the positioning shell, the positioning shell can be better replaced and the angle can be adjusted. The positioning shell is fixed by the slide plate and the rubber limit block, which simplifies the process and greatly reduces the mold removal time, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A distribution diagram of the positioning shell on the gums for this application;

[0028] Figure 2This is a schematic diagram of the upper structure of the positioning housing of this application;

[0029] Figure 3 A cross-sectional view of the positioning housing of this application;

[0030] Figure 4 This is a diagram showing the connection between the fastening mechanism and the implant of this application;

[0031] Figure 5 This is a schematic diagram of the overall device of this application;

[0032] Figure 6 This is an overall cross-sectional view of the device of this application;

[0033] Figure 7 This is a schematic diagram of the fastening mechanism of this application;

[0034] Figure 8 This is a schematic diagram of the abutment and limiting mechanism of this application.

[0035] Reference numerals: 1, gum; 2, implant; 3, positioning shell; 4, through groove; 5, groove; 6, concave point; 7, vertical fixing rod;

[0036] 8. Abutment limit mechanism; 81. Upper support plate; 82. Slide plate; 83. Rubber limit block; 84. Fixed slide; 85. T-shaped slide; 86. T-shaped slide bar; 87. First spring; 88. Limit rod; 89. Oval protrusion;

[0037] 9. Fastening mechanism; 91. Lower support plate; 92. Barbed fastening plate; 93. Rack; 94. Gear; 95. Rotating shaft; 96. Second spring;

[0038] 10. Drive shaft; 11. Knob; 12. Support ring; 13. Scale line. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1 - Figure 8 This application is described in further detail.

[0040] The embodiment of the present application discloses an oral omnidirectional scanning and positioning device for dental implants.

[0041] Reference Figure 1 、 Figure 2 、 Figure 3A comprehensive oral scanning and positioning device for dental implants includes a gingiva 1 within a patient's oral cavity and an implant 2 fixed in the alveolus of the gingiva 1. The upper portion of the implant 2 can be fitted within a through-slot 4 within a positioning housing 3. The upper surface of the positioning housing 3 is provided with a plurality of grooves 5 and concave points 6 that facilitate scanning of features within the oral cavity. Different arcs and lengths can be designed based on the patient's condition for better feature scanning. A scale line 13 is provided in the middle of the upper surface of the positioning housing 3 to improve scanning accuracy. The scale line 13 is concave, making it easier to scan and determine a more accurate distance based on the scale line 13, just like the concave points 6. The scale line 13 is preferably in millimeters.

[0042] Reference Figure 3 、 Figure 5 A through groove 4 is provided on one side of the positioning shell 3, the inner diameter of which is larger than the diameter of the implant 2 and can be sleeved on the outside of the implant 2. The through groove 4 is located away from the groove 5, the concave point 6 and the scale line 13 to avoid mutual interference. The through groove 4 is rotatably arranged with the transmission shaft 10 in the middle of the inner cavity, and the upper end of the transmission shaft 10 is fixed through the middle of the knob 11, and two small ears are provided on both sides of the knob 11 for convenient force bearing.

[0043] The through groove 4 can be connected to different implants 2 in the mouth, so as to ensure that the positioning shell 3 can be installed on the implant 2 to form a positioning point in the mouth, and the positioning shell 3 has a shape that is easy for the intraoral scanner to identify, which makes it convenient for the scanner to identify intraoral features and thus reduce the precise error value. The positioning shell 3 is extensible and is designed with a variety of lengths. It can be distributed at multiple points in the mouth of edentulous patients, thereby adapting to the complex angles and spacings of the intraoral implants 2.

[0044] The positioning shell 3 is added with grooves 5, concave points 6, scale lines 13 for easy scanning and identification, and the positioning shell 3 is connected in order according to the curvature of the dental arch of the gum 1 in the mouth as much as possible. This will be beneficial for the system to identify and distinguish different positioning shells 3 during the scanning process, thereby reducing splicing errors and ensuring the smoothness and accuracy of data obtained by oral scanning. The special-shaped design of the positioning shell 3 increases the recognition area of ​​the intraoral scanner and is easier to match with the database, thereby transferring the position data of the implant 2 in the alveolar bone, which is convenient for the subsequent design of the implant bridge and CADCAM processing.

[0045] Reference Figure 5 、 Figure 6 、 Figure 8A contact limit mechanism 8 is provided in the middle of the transmission shaft 10, and the contact limit mechanism 8 includes an upper support plate 81 movably provided on the outer ring surface in the middle of the transmission shaft 10, and both ends of the upper support plate 81 are fixedly provided in the middle of the vertical fixed rod 7, and two fixed slide grooves 84 of the same size are provided in the middle of the upper surface of both ends of the upper support plate 81 with the transmission shaft 10 as the midpoint, and T-shaped slide grooves 85 are provided on the side walls on both sides of the inner cavity of the two fixed slide grooves 84, and the structural dimensions of the T-shaped slide grooves 85 are the same and are both set to smooth surfaces, and the two T-shaped slide grooves 85 located on the same side are internally provided with T-shaped slide rods 86 with the same smooth surface for sliding against each other, and the T-shaped slide rod 86 is fixedly connected to the side walls on both sides of the slide plate 82 on the surface away from the side of the T-shaped slide groove 85.

[0046] Reference Figure 6 、 Figure 8 , and two slide plates 82 are slidably provided inside the fixed slide grooves 84 opened at both ends of the upper support plate 81, and the two slide plates 82 have the same structure and installation method, and the two slide plates 82 are fixedly provided with rubber limit blocks 83 on the surface of the side away from the transmission shaft 10, and the two rubber limit blocks 83 have the same structure and installation method, and at the same time, the two rubber limit blocks 83 are abutted against the inner wall of the through groove 4 on the surface away from the slide plate 82 on the side away from the rubber limit block 83 and fixedly connected to one end of the two first springs 87, and the two The other end of the first spring 87 is fixedly connected to the side wall of the fixed slide groove 84 on one side of the slide plate 82, and the upper surface of the two slide plates 82 away from the rubber limit block 83 is fixedly connected to the lower surface of two limit rods 88 with the same structure, and the distance between the two limit rods 88 and the transmission shaft 10 is the same, and the two limit rods 88 are both abutted against the elliptical protrusion 89 for limitation, and the elliptical protrusion 89 is fixedly set through the transmission shaft 10, and the outer diameter of the limit rod 88 is 1-2 mm smaller than the inner diameter of the semicircular groove opened at the long axis end on both sides of the elliptical protrusion 89.

[0047] Twisting the transmission shaft 10 can drive the elliptical protrusion 89 fixed to it to rotate, and when the elliptical protrusion 89 rotates, its long axis end can push the two limit rods 88 to move outwards to both sides, thereby causing the limit rods 88 to drive the slide plate 82 to move together in the fixed slide groove 84 opened on the upper surface of the upper support plate 81, and when the slide plate 82 moves, it can drive the rubber limit block 83 fixed to it to move together and squeeze the inner wall of the through groove 4, thereby achieving the effect of mutual abutment and limitation, making the through groove 4 unable to rotate or move longitudinally.

[0048] The T-shaped slide bars 86 fixed on both sides of the slide plate 82 and the T-shaped slide grooves 85 opened on the side walls of the fixed slide grooves 84 are slidably arranged and limit each other, and the surfaces of the T-shaped slide grooves 85 and the T-shaped slide bars 86 are both set to smooth surfaces, so that the slide plate 82 can slide more smoothly in the fixed slide grooves 84 and will not separate from the fixed slide grooves 84 during the sliding process. The setting of the first spring 87 can help the slide plate 82 to pull back the slide plate 82 and the rubber limit block 83 after losing the abutment limit of the elliptical protrusion 89, thereby releasing the through groove 4 and allowing it to move freely.

[0049] The outer diameter of the limiting rod 88 is 1-2 mm smaller than the inner diameter of the semicircular grooves opened at the long axis ends on both sides of the elliptical protrusion 89, so that the elliptical protrusion 89 can limit the limiting rod 88 when pushing the limiting rod 88 to move to the long axis end of the elliptical protrusion 89.

[0050] Reference Figure 5 、 Figure 6 、 Figure 7 The transmission shaft 10 is provided with a fastening mechanism 9 at the lower part thereof, and the fastening mechanism 9 includes a lower support plate 91 movably penetrated at the lower part of the transmission shaft 10, and the lower support plate 91 is rotatably connected to two barb-type fastening plates 92 at both ends with the transmission shaft 10 as the center, and the two barb-type fastening plates 92 have the same structure and installation method, and the upper part of the barb-type fastening plate 92 is movably penetrated by the rotating shaft 95, and the rotating shaft 95 penetrates the barb-type fastening plate 92 at both ends and is movably penetrated with the vertical fixing rod 7, and the vertical fixing rod 7 is movably penetrated with the barb-type fastening plate 9 2 is rotatably connected, and the lower parts of the two barb-shaped fastening plates 92 are abutted and limited with the vertical grooves symmetrically arranged on both sides of the upper part of the implant 2, and the two barb-shaped fastening plates 92 are located on one side of the transmission shaft 10 and are respectively fixed with racks 93, and the two racks 93 are arranged opposite to each other, and the two oppositely arranged racks 93 are meshed with the gear 94, and the gear 94 is rotatably arranged in the middle of the inner cavity of the lower support plate 91, and the two racks 93 are symmetrically arranged on both sides of the gear 94, and the middle part of the gear 94 is fixedly penetrated by the transmission shaft 10.

[0051] Reference Figure 6 、 Figure 7 , and a second spring 96 is fixedly provided in the middle of the surface of the opposite side of the two barbed fastening plates 92, and the second spring 96 is located at the lower part of the lower support plate 91 and the rotating shaft 95, and the upper outer surface of the two vertical fixing rods 7 is fixedly connected to the inner ring surface of the support ring 12, and the lower part of the two vertical fixing rods 7 is also fixedly provided with a support ring 12, and the two support rings 12 have the same structure and installation method, and the outer ring surfaces of the two support rings 12 can abut against the inner ring surface of the through groove 4.

[0052] The transmission shaft 10 is twisted to rotate the transmission shaft 10 and drive the gear 94 fixed to the lower part to rotate. When the gear 94 rotates, it can drive the rack 93 slidingly set on both sides of the inner cavity of the lower support plate 91 and meshing with the gear 94 to move away from the transmission shaft 10. When the rack 93 moves outward, it can push the hook-type fastening plate 92 fixed to it outward. The hook-type fastening plate 92 uses the rotating shaft 95 that is movably passed through its upper part as a support point, and the rotating shaft 95 uses the vertical fixed rod 7 as a support point, so that the more the rack 93 pushes the upper part of the hook-type fastening plate 92 outward, the more its lower part can press against the side wall of the implant 2.

[0053] The second spring 96 is located at the lower part of the lower support plate 91 and the rotating shaft 95. The rotating shaft 95 can be used as the support origin to pull the hook-type fastening plate 92 toward the middle, and the hook-type fastening plate 92 can assist the abutment and limit the implant 2. The upper and lower parts of the vertical fixing rod 7 are fixedly provided with support rings 12, and the support rings 12 can abut against the inner wall of the through groove 4, thereby guiding and fixing the positioning shell 3, and can also enable the positioning shell 3 to be quickly separated and assembled from the implant 2, so as to facilitate the replacement of different positioning shells 3.

[0054] The implementation principle of an oral all-round scanning and positioning device for dental implants in an embodiment of the present application is as follows: when preparing for a three-dimensional scanning and molding of the patient's mouth, first align the lower part of the hook-type fastening plate 92 in the device with the vertical grooves on both sides of the implant 2 and insert it. Under the action of the second spring 96, the hook-type fastening plate 92 pre-fixes the implant 2 and restricts the lateral rotation of the entire device. At this time, the through groove 4 opened on one side of the positioning shell 3 can be aligned with the support ring 12 and inserted to dock with the implant 2. Then the positioning shell 3 can be rotated to adjust the positioning shell 3 to the optimal position and angle, or a more suitable positioning shell 3 can be replaced and re-docked. When all debugging is completed, the transmission shaft 10 is rotated by turning the knob 11, thereby driving the elliptical protrusion 89 and the gear 94 to rotate.

[0055] When the elliptical protrusion 89 rotates, the limiting rod 88 can be pushed, thereby pushing the slide plate 82 and the rubber limiting block 83 to move outward, and making the outer portion of the rubber limiting block 83 abut against the inner side wall of the through-groove 4 to limit the through-groove 4, so that the through-groove 4 cannot be rotated left and right or removed, and when the elliptical protrusion 89 and the limiting rod 88 are limited, the through-groove 4 will also be completely fixed.

[0056] When the gear 94 rotates, it drives the two racks 93 to push the upper parts of the two hook-type fastening plates 92 outward respectively. With the cooperation of the rotating shaft 95 and the vertical fixing rod 7, the more the upper parts of the hook-type fastening plates 92 are pushed out, the tighter they abut against the implant 2, thereby enabling the positioning shell 3 to be firmly fixed on the upper part of the implant 2 to perform three-dimensional scanning in the oral cavity. During the scanning, the grooves 5 and concave points 6 set on the upper part of the positioning shell 3 and the curvature of the side design of the positioning shell 3 can provide features and references for the scan, so that the scanning process can accurately capture the oral structure of the edentulous patient, including the shape and position of the alveolar bone, so that the doctor can make accurate implant surgery plans based on the scanning results, thereby improving the success rate of the surgery and the patient's satisfaction.

[0057] The above are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. An oral omnidirectional scanning and positioning device for dental implants, comprising a gum (1) and an implant (2) fixed in the gum (1), characterized in that: A positioning shell (3) is provided on the upper part of the implant (2), and a groove (5) and a concave point (6) are provided on the upper part of the positioning shell (3) for facilitating scanning features. A through groove (4) is provided on the side of the positioning shell (3) away from the groove (5) and the concave point (6), and a transmission shaft (10) is rotatably provided inside the through groove (4). A knob (11) is fixed on the upper part of the transmission shaft (10), and an abutment limit mechanism (8) is provided in the middle of the transmission shaft (10); The abutment and limiting mechanism (8) comprises an upper support plate (81) movably arranged through the middle of the transmission shaft (10), two slide plates (82) with the same structure and installation method are slidably arranged on both sides of the upper support plate (81), and a rubber limiting block (83) with the same structure and installation method and abutting against the inner wall of the through groove (4) is fixed on the side of the two slide plates (82) away from the transmission shaft (10); A fastening mechanism (9) is provided at the lower part of the transmission shaft (10), and the fastening mechanism (9) comprises a lower support plate (91) movably penetrating the lower part of the transmission shaft (10), two barbed fastening plates (92) with the same structure and installation method are connected on both sides of the lower support plate (91), and racks (93) are respectively provided on one side of the two barbed fastening plates (92) relative to each other, and a gear (94) rotatably provided in the middle of the inner cavity of the lower support plate (91) is meshed between the two racks (93), and the middle part of the gear (94) is fixedly penetrating with the transmission shaft (10).

2. The oral omnidirectional scanning and positioning device for dental implants according to claim 1, characterized in that: The abutting limit mechanism (8) further comprises fixed slide grooves (84) provided in the middle of both sides of the upper support plate (81), and the side walls of both sides of the two fixed slide grooves (84) are provided with T-shaped slide grooves (85) of the same structure, and the two T-shaped slide grooves (85) are provided with T-shaped slide rods (86) fixedly connected to the side walls of both sides of the slide plate (82) so as to slide against each other.

3. The oral omnidirectional scanning and positioning device for dental implants according to claim 1, characterized in that: The upper part of the two slide plates (82) away from the rubber limiting block (83) is fixed with a limiting rod (88) of the same structure, and an elliptical protrusion (89) fixedly provided with the transmission shaft (10) is abutted between the two limiting rods (88).

4. The oral omnidirectional scanning and positioning device for dental implants according to claim 1, characterized in that: Two first springs (87) are fixedly connected to the side wall of the fixed sliding groove (84) located on one side of the slide plate (82) on the side away from the rubber limiting block (83).

5. The oral omnidirectional scanning and positioning device for dental implants according to claim 1, characterized in that: The fastening mechanism (9) further comprises a second spring (96) fixed to the middle of the surface of the two opposite sides of the barbed hook fastening plates (92).

6. The oral omnidirectional scanning and positioning device for dental implants according to claim 1, characterized in that: A rotating shaft (95) is movably provided on the upper portion of the barb-shaped fastening plate (92), and vertical fixing rods (7) connected to the barb-shaped fastening plate (92) are movably provided on both ends of the rotating shaft (95).

7. The oral omnidirectional scanning and positioning device for dental implants according to claim 6, characterized in that: The upper and lower parts of the vertical fixing rod (7) are both fixed with support rings (12) having the same structure and installation method, and the outer ring surface of the support ring (12) abuts against the inner ring surface of the through groove (4).

8. The oral omnidirectional scanning and positioning device for dental implants according to claim 1, characterized in that: A scale line (13) for improving scanning accuracy and precise distance is provided in the middle of the upper surface of the positioning housing (3).

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