Auxiliary scanning and data correction device and method for edentulous jaw implant impression

Abstract

The invention belongs to the technical field of edentulous jaw implantation, and discloses an auxiliary scanning and data correction device and method for an edentulous jaw implantation impression, and the device comprises an arc-shaped base plate which is used for being attached to the gum and jaw of an edentulous jaw patient; a slot is formed in the arc-shaped base plate and is used for accommodating a scanning rod on the implant. The data correction method comprises the steps of performing virtual segmentation on composite data according to the number of scanning rods to obtain segmented composite data fragments corresponding to the number of the scanning rods; according to the serial number of the device, finding correction standard data of the device, and correcting the segmented composite data fragments to obtain a corrected scanning model; and performing implantation treatment on an edentulous jaw patient under the assistance of the corrected scanning model. The data correction method can be based on matched AI auxiliary correction software, an oral scanner with a correction function or dental design software, the accuracy of scanning data is improved, and recognition, capture, splicing and later data correction during scanning of the intraoral scanner are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of edentulous jaw implantation, and in particular to an auxiliary scanning and data correction device and method for edentulous jaw implantation impressions. Background Art

[0002] During the implant treatment of edentulous patients, the most important and necessary step is to accurately transfer the spatial position of the implant / abutment in the patient's mouth to the extraoral digital model through digital impression making technology; high-precision impression making can well achieve the passive positioning of the superstructure of edentulous implant fixed restoration, thereby reducing the occurrence of mechanical and biological complications and ensuring the long-term success rate of edentulous implant treatment.

[0003] Currently, the most commonly used digital impression-taking technology is intraoral scanning. During the intraoral scanning impression-taking process for edentulous implants, a metal or non-metallic scanning rod with a special surface structure is first fixed to the upper portion of the implant / abutment in the patient's mouth using matching screws. The fixed scanning rod and surrounding soft tissue, such as the patient's gums, are then scanned using an intraoral scanner to obtain a final digital impression reflecting the scanning rod and surrounding tissue within the patient's mouth. However, because intraoral scanners primarily create impressions through a data splicing process, the oral tissue structure of edentulous implant patients is unique, with smooth, reflective surfaces and a lack of obvious, easily recognizable anatomical landmarks, making data collection and splicing difficult. Furthermore, the distance between implants in edentulous implant patients is often large, resulting in a high number of data splicing operations, which can easily lead to the accumulation of splicing errors. Consequently, the accuracy of the obtained digital intraoral scanning impression does not meet clinical requirements. Currently, it is difficult to obtain high-precision edentulous implant impressions using intraoral scanners alone.

[0004] Existing auxiliary devices can be fixed to the scanning arm and often feature special surface structures that facilitate the scanning and matching process of the intraoral scanner. However, these devices cannot circumvent the data distortion inherent in scanners. For impressions taken from edentulous implant patients, the issue of data distortion during intraoral scanning persists as the scanning path lengthens. Simply using these auxiliary devices cannot prevent distortion during long scanning paths. Summary of the Invention

[0005] The object of the present invention is to provide an auxiliary scanning and data correction device and method for edentulous implant impressions in response to the above-mentioned problems, hoping to improve the problem that the oral tissue structure of edentulous implant patients is special, the surface is smooth and reflective, and there is a lack of obvious and easily identifiable anatomical landmarks, which is not conducive to data collection and splicing; and the existing device cannot avoid the problem of data splicing deformation existing in the scanner.

[0006] The technical solution adopted by the present invention is as follows: an auxiliary scanning and data correction device for edentulous implant impressions, the device including an arc-shaped base, the arc-shaped base being used to fit the gums and jaws of edentulous patients; the arc-shaped base being provided with a groove, the groove being used to accommodate the scanning rod on the implant; the surface of the arc-shaped base being a matte structure, and the surface being provided with irregular patterns, the irregular patterns being used to assist in scanning recognition, splicing and data correction.

[0007] Furthermore, in order to clearly distinguish the coverage range of the device, the device includes a maxillary device and a mandibular device. The coverage range of the maxillary device extends from the labial and buccal sides to the mucogingival joint, covers the palatal vault with a smaller convexity on the palatal side, and extends the posterior edge to the palatal fossa; the coverage range of the mandibular device extends from the labial and buccal sides to the mucogingival joint, and the area close to the lingual side is relatively flat.

[0008] Furthermore, in order to adapt to the different oral sizes of edentulous patients, the device is set to four different sizes of S, M, L, and XL according to the average values ​​of the length and width of the human dental arch through 3D reverse modeling; the inner surface of the device is consistent with the alveolar ridge morphology of edentulous patients.

[0009] It should be noted that 3D reverse modeling is an existing software.

[0010] Furthermore, for the safety of patients, the device is made of resin, metal, PEEK or medical materials.

[0011] Furthermore, in order to avoid deviation in the scan data, an auxiliary scanning and data correction method for edentulous implant impressions is proposed, the auxiliary scanning method comprising: Numbering the device, scanning the device with a high-precision three-dimensional scanning device to obtain three-dimensional surface data of the device, wherein the number corresponds to the three-dimensional surface data of the device; Install the scanning rod on the implant in the edentulous patient's gums. Select the appropriate size device based on the size of the edentulous patient's dental arch, implant position and angle, and record the device number used. Matching the slot of the device with the scanning rod and connecting the device to the scanning rod; The device and the scanning rod are scanned by an intraoral scanner to capture identification features on the surface of the scanning rod and irregular images on the surface of the device, thereby obtaining composite data including the device and the scanning rod.

[0012] Furthermore, in order to make the reference data for calibration more accurate, the device is scanned by a high-precision three-dimensional scanning device, and the three-dimensional surface data of the device obtained by the scan is used as calibration standard data. Furthermore, in order to output a high-precision scan model, the data correction method includes: Virtually segmenting the composite data according to the number of scanning rods to obtain segmented composite data segments corresponding to the number of scanning rods; According to the device number, find the calibration standard data of the device, calibrate the segmented composite data segments, and obtain a calibrated scanning model; Implant treatment of edentulous patients is assisted by the calibrated scan model.

[0013] Furthermore, in order to segment the composite data based on the scanning rod, the segmented composite data segments include the irregular image of the corresponding portion of the device surface and the corresponding scanning rod.

[0014] Furthermore, correcting the segmented composite data segments specifically includes the following steps: Using the supporting AI-assisted correction software or dental design software, the segmented composite data segments are matched with the corresponding correction standard data, and the data in the segmented composite data segments and the irregular images of the device surface are adjusted based on the correction standard data to obtain a scan model.

[0015] It should be noted that the dental design software is existing software.

[0016] Furthermore, in order to improve the efficiency of scanning and data correction, the data correction is set in the intraoral scanner, and data correction is performed while scanning the oral cavity of the edentulous patient. The output scanning model is transmitted to the PC via a signal for display and storage.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. Due to the difficulties of intraoral scanning of edentulous patients such as the lack of clear anatomical landmarks and the high mobility of mucosal tissue, an auxiliary scanning device for edentulous implant impressions is set up. The auxiliary scanning device scans the edentulous implant impressions with an intraoral scanner instead of directly scanning the patient's mouth, thereby improving the accuracy of the scanned data, facilitating the recognition, capture and splicing of the intraoral scanner, reducing the scanning time and improving the scanning accuracy.

[0018] 2. Since the existing intraoral scanning auxiliary devices cannot avoid the splicing deformation problem during long-path scanning, the present invention divides the scan data into segments, and each segmented part corresponds to a scanning rod and a partial irregular image of the device, thereby improving the scanning accuracy and reducing the probability of data splicing deformation when the intraoral scanner is used to scan long spans of edentulous implants.

[0019] 3. Scan the device using high-precision 3D scanning equipment to obtain 3D surface data of the device. Use the 3D surface data as calibration standard data to calibrate the scanned data, thereby improving the accuracy of the scanned model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the device of the present invention; Figure 2 is a flow chart of the auxiliary scanning method of the present invention; Figure 3 is a flow chart of the data correction method of the present invention; Figure 4 The maxillary device of the present invention; Figure 5 The mandibular device of the present invention; Figure 6 Detailed structural diagram of the device of the present invention; Reference numerals: 1, device; 2, arc-shaped base; 3, slot; 4, scanning rod; 5, maxillary device; 6, mandibular device; 201, convex structure; 202, concave structure; 301, groove inner wall; 302, groove outer wall. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings.

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] like Figure 1 As shown, Since intraoral scanners mainly use the process of data splicing to make impressions, however, the oral tissue structure of edentulous implant patients is special, with a smooth and reflective surface and a lack of obvious and easily identifiable anatomical landmarks, which is not conducive to data collection and splicing. At the same time, the spans between implants of edentulous implant patients are often large, resulting in a large number of data splicing times, which easily causes the accumulation of splicing errors, resulting in the accuracy of the digital oral scan impressions not meeting clinical needs. At present, it is difficult to make high-precision edentulous implant impressions simply through intraoral scanners.

[0024] like Figures 1-6As shown, an auxiliary scanning and data correction device for edentulous implant impressions, the device 1 includes an arcuate base 2, the arcuate base 2 is used to fit the gums and jaws of edentulous patients; the arcuate base 2 is provided with a slot 3, the slot 3 is used to accommodate the scanning rod 4 on the implant; the surface of the arcuate base 2 is a matte structure, and the surface is provided with irregular patterns, the irregular patterns are used to assist in scanning recognition, splicing and data correction.

[0025] The surface of device 1 is matte and has irregular characteristic structures such as circles, triangles, squares, rough curves, and wrinkles. This can solve the problem of "smooth and reflective surface and lack of obvious and easily identifiable anatomical landmarks" in the oral tissues of edentulous patients, making it easier for intraoral scanners to identify, capture, and splice them.

[0026] In particular, an auxiliary scanning and data correction method for edentulous implant impressions is set up to solve the problem that existing auxiliary devices "cannot avoid model splicing deformation during long-path scanning".

[0027] The auxiliary scanning method includes: The device 1 is numbered, and the device 1 is scanned by a high-precision three-dimensional scanning device to obtain three-dimensional surface data of the device 1, with the number corresponding to the three-dimensional surface data of the device 1; Install the scanning rod 4 on the implant of the edentulous patient's gums, select a device 1 of appropriate size according to the size of the edentulous patient's dental arch, the position and angle of the implant, and record the serial number of the device 1 used; Match the slot 3 of the device 1 with the scanning rod 4 and connect the device 1 to the scanning rod 4; the device 1 is connected to the scanning rod 4 through bite-register silicone rubber, hand-kneaded silicone rubber or other medical materials; ensure that all scanning rods 4 can pass through the slot 3; The device 1 and the scanning rod 4 are scanned by an intraoral scanner to capture identification features on the surface of the scanning rod 4 and irregular images on the surface of the device 1 , thereby obtaining composite data including the device 1 and the scanning rod 4 .

[0028] The data correction method comprises: The composite data is virtually segmented according to the number of scanning rods 4 to obtain segmented composite data segments corresponding to the number of scanning rods 4; each segmented segment includes a scanning rod 4 and a portion of the device 1, thereby segmenting the entire composite data into multiple segments; According to the serial number of device 1, the calibration standard data of device 1 is found, and the segmented composite data segments are calibrated. Multiple segments are compared with the calibration standard data respectively. If the data has a large deviation, it is corrected by the calibration standard data to obtain a calibrated scan model. The data in the scan model are all calibrated according to the oral data of the edentulous patient and are the most suitable for the patient's oral condition; Implant treatment for edentulous patients is assisted by scanned models.

[0029] This method decomposes the stitching errors accumulated during long-span scanning, thereby fundamentally reducing the data stitching deformation problem of intraoral scanners during long-span scanning of edentulous implants, achieving a data correction function that previous auxiliary devices could not achieve.

[0030] Example 1 like Figure 4-Figure 5 As shown, one embodiment of the present invention is that, in order to clearly distinguish the coverage range of the device 1, the device 1 includes a maxillary device 5 and a mandibular device 6. The coverage range of the maxillary device 5 extends from the labial and buccal sides to the mucogingival joint, covers the palatal vault with a smaller convexity on the palatal side, and extends the posterior edge to the palatal fossa; the coverage range of the mandibular device 6 extends from the labial and buccal sides to the mucogingival joint, and the area close to the lingual side is relatively flat.

[0031] Since the structures of the maxillary and mandibular parts of the oral cavity are quite different, the device 1 is divided into a maxillary device 5 and a mandibular device 6 to better adapt to the internal structure of the patient's oral cavity; the maxillary device 5 covers the area extending from the labial and buccal sides to the mucogingival joint, and from the palatal vault to the palatal fossa, and its extended length enables it to be better fixed on the maxillary part, facilitating subsequent scanning by an intraoral scanner; the mandibular device 6 covers the area extending from the labial and buccal sides to the mucogingival joint, and since the tongue blocks the lingual side of the mandible, it is designed to have a relatively flat characteristic area.

[0032] The area covered by the device 1 is an area with a smooth and reflective surface that is difficult for the intraoral scanner to distinguish and lacks obvious and easily identifiable anatomical landmarks; and the surface of the curved base 2 of the device 1 is a matte structure, and the surface is provided with irregular patterns. Therefore, when the intraoral scanner scans, it can identify the irregular patterns on the surface of the device 1, which facilitates the capture and identification of data and reduces the scanning time. At the same time, the irregular patterns are used for subsequent data correction to improve scanning accuracy.

[0033] Example 2 In one embodiment of the present invention, the device 1 is set to four different sizes of S, M, L, and XL according to the average values ​​of the length and width of the human dental arch through 3D reverse modeling; the inner surface of the device 1 is consistent with the alveolar ridge morphology of the edentulous patient.

[0034] 3D reverse modeling software is a tool for modeling based on physical objects. It can create a 3D representation of an existing structure through 3D scanning and other technologies, and convert it into a digital model of a polygon or triangular surface. Through 3D reverse modeling software, four different sizes of auxiliary correction devices 1, S, M, L, and XL, are designed according to the average values ​​of the length and width of the human dental arch. The inner surface of the device 1 is consistent with the morphology of the alveolar ridge of different edentulous patients, and the outer surface has the characteristics of a special irregular and non-repetitive structure. Its shape can be an irregular circle, triangle, square, rough curve, wrinkle, or a combination of these shapes. A slot 3 is opened in the middle of the device 1 to accommodate the oral scanning rod 4 installed in the patient's mouth, and is also used to fix the device 1 on the scanning rod 4.

[0035] According to the size of the oral cavity and gums of the edentulous patient, a device 1 of appropriate size is selected and placed on the gums and connected to the scanning rod 4 to cover the smooth area of ​​the patient's oral cavity that is not conducive to scanning by an oral scanner.

[0036] Example 3 In one embodiment of the present invention, the device 1 is made of resin, metal, PEEK or medical material.

[0037] The material of the device 1 is mainly considered to be pollution-free, harmless, stable in shape and durable, easy to disinfect, and the irregular patterns thereon need to be easy to identify so as to facilitate recognition by the intraoral scanner.

[0038] Resin is low-mass and comfortable, which can reduce the foreign body sensation in the mouth. It is also easy for doctors to make it at chairside, and can be adjusted appropriately after making it to ensure the fit of the device 1 to the mouth and improve wearing comfort. Metal materials are corrosion-resistant and wear-resistant, and are less sensitive to temperature. The device 1 will not be damaged by the temperature in the patient's mouth or the storage temperature, and can be reused after disinfection. PEEK has stable performance, good biocompatibility, wear resistance, and a non-reflective surface, which can ensure that the device 1 can be accurately identified and captured by the oral scanner. At the same time, PEEK material has a low density, making it more stable and comfortable after installation in the patient's mouth. Medical materials combine multiple advantages, such as high strength, high biocompatibility, good wear resistance and corrosion resistance. These materials are increasingly used in the field of oral medicine and can meet patients' comprehensive needs for beauty, comfort and durability.

[0039] Example 4 like Figure 2 As shown, in one embodiment of the present invention, the auxiliary scanning method includes: The device 1 is numbered for identification; the device 1 is scanned using a high-precision three-dimensional scanning device to obtain three-dimensional surface data of the device 1, with the number corresponding to the three-dimensional surface data of the device 1; the three-dimensional surface data can be stored in an intraoral scanner or supporting AI-assisted correction software for easy query and comparison; Install the scanning rod 4 on the implant in the edentulous patient's gums. Select a device 1 of appropriate size based on the size of the edentulous patient's dental arch, the position and angle of the implant, and record the serial number of the device 1 used. The scanning rod 4 is used to assist the intraoral scanner in positioning and to secure the device 1. Therefore, the device 1 needs to be of appropriate size to accommodate the scanning rod 4 in the slot 3 of the device 1. Match the slot 3 of the device 1 with the scanning rod 4 and connect the device 1 to the scanning rod 4. Use bite-register silicone rubber / hand-kneaded silicone rubber or other medical materials to fix the selected device 1 to the scanning rod 4 in the patient's mouth, ensuring that all scanning rods 4 can pass through the slot 3 of the device 1 and that the identification features on the surface of the scanning rod 4 are not blocked by the silicone rubber or the selected device 1. After the silicone rubber solidifies, the device 1 and the scanning rod 4 are scanned by an intraoral scanner to capture the identification features on the surface of the scanning rod 4 and the irregular image on the surface of the device 1 , thereby obtaining composite data including the device 1 and the scanning rod 4 .

[0040] The three-dimensional surface data of the device 1 obtained by scanning with a high-precision three-dimensional scanning device is used as calibration standard data, and then data calibration is started.

[0041] By using the device 1 to assist the intraoral scanner in scanning, the spatial position of the implant / abutment in the patient's mouth can be accurately transferred to the extraoral digital model through digital impression making technology. High-precision impression making can better achieve the passive positioning of the upper structure of edentulous implant fixed restoration, thereby reducing the occurrence of mechanical and biological complications and ensuring the long-term success rate of edentulous implant treatment.

[0042] Example 5 like Figure 3 As shown, in one embodiment of the present invention, the data correction method includes: According to the number of scanning rods 4, the composite data obtained by the auxiliary scanning method is virtually segmented to obtain segmented composite data segments corresponding to the number of scanning rods 4; According to the serial number of device 1, the calibration standard data of device 1 is found, and the segmented composite data segments are calibrated to obtain a scanning model; Implant treatment for edentulous patients is assisted by scanned models.

[0043] The segmented composite data segment includes the irregular image corresponding to the portion of the surface of the device 1 and the corresponding scanning rod 4 .

[0044] This auxiliary device 1 and the corresponding correction method can effectively improve the efficiency and accuracy of oral scans for edentulous jaw implant impressions, obtaining high-precision oral scans for edentulous jaw implant models that meet clinical needs and are not available with existing auxiliary devices 1. Furthermore, the digitized data from this device 1 can be embedded in an intraoral scanner, automatically recognizing and correcting the data during scanning. It can also be combined with supporting AI-assisted correction software for automatic recognition, segmentation, correction, and data output, effectively reducing the time required for clinical oral scans for edentulous jaw implant impressions. Furthermore, this device 1 can be reused, saving materials and costs.

[0045] Example 6 like Figure 3 As shown, in one embodiment of the present invention, correcting the segmented composite data segments specifically includes the following steps: Using the supporting AI-assisted correction software or dental design software, the segmented composite data segments are matched with the corresponding correction standard data, and the data in the segmented composite data segments and the irregular image on the surface of the device 1 are adjusted based on the correction standard data; a scan model is obtained.

[0046] Dental design software plays a vital role in the field of digital dentistry. It enables doctors and technicians to design accurate tooth restoration plans on computers. The dental design software and supporting AI-assisted correction software used in this embodiment are both existing technologies. Through the dental design software, the scanned composite data can be corrected to design an edentulous jaw implant treatment plan that is more suitable for each patient.

[0047] Example 7 In one embodiment of the present invention, the data correction is arranged in an intraoral scanner, and data correction is performed while scanning the oral cavity of an edentulous patient, and the output scanning model is transmitted to a PC via a signal for display and storage.

[0048] The intraoral scanner stores calibration standard data in advance. The composite data obtained after scanning is compared with the calibration standard data, and the composite data is corrected to output a scanning model. The data of the scanning model avoids the problems of data splicing errors that cannot be avoided by existing intraoral scanners during long-span oral scanning and the lack of easily identifiable anatomical landmarks in the scanned data.

[0049] Example 8 Another embodiment of the present invention is to scan the scanning rod 4 in segments according to the number of implants in the patient's mouth, and scan the irregular structures on the surface of part of the device 1 and the corresponding scanning rod 4 respectively. The intraoral scanner automatically identifies the scanned irregular morphological part of the device 1, and automatically matches the scanned data segment through the irregular structure on the surface of the device 1 to the corresponding numbered device 1 correction standard data stored in the intraoral scanner, thereby realizing the data scanning, matching and correction functions, and finally completing the scanning to output a high-precision scan model.

[0050] The scanning and correction functions are integrated into the intraoral scanner. While the intraoral scanner is scanning, the scanned composite data can be matched and corrected with the correction standard data, thereby improving the efficiency of outputting the scanning model and efficiently proposing oral treatment plans for edentulous patients.

[0051] Example 9 Another embodiment of the present invention is to import the obtained overall scanned composite data into the matching AI-assisted correction software, enter the unique number of the selected auxiliary correction device 1 in the software, and the software automatically calls the internally stored device 1 correction standard data, and combines the AI ​​algorithm to automatically identify the scanning rod 4 and the auxiliary correction device around it in the scanned data, and automatically realize the segmentation of the scanned composite data, divide the data into a corresponding number of segments according to the number of scanning rods 4, and then automatically match the segmented segments to the built-in device 1 correction standard data to realize the correction of the scanned composite data and the output of the final data.

[0052] This method combines AI algorithms to automatically segment the scanned composite data, and then compares and corrects it with the calibration standard data, greatly reducing manual labor while improving data accuracy.

[0053] Example 10 like Figure 6 As shown, another embodiment of the present invention is that the detailed structural diagram of the device 1 is as shown Figure 6 As shown, the arc-shaped base 2 is provided with a convex structure 201 and a concave structure 202, which form an irregular pattern on the surface of the arc-shaped base 2; the groove 3 is provided with a groove inner side wall 301 and a groove outer side wall 302 on both sides close to the arc-shaped base 2; Compared with the case where the inner surface of the oral cavity of an edentulous patient is smooth and has no special markings without the device 1 installed, the device 1 enables the intraoral scanner to accurately identify the raised structure 201 and the recessed structure 202 on the surface of the arc base 2, making the scanned data more accurate.

[0054] The irregular shape on the surface of the arc-shaped base 2 can be a sphere, an irregular polygon or a wrinkle, etc., and is specifically set according to the actual scanning situation.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An auxiliary scanning and data correction device for edentulous jaw implant impression, characterized in that: The device comprises an arc-shaped base, which is used to fit the gums and jaws of an edentulous patient; a slot is provided on the arc-shaped base, which is used to accommodate a scanning rod on the implant; The surface of the arc-shaped base is a matte structure, and the surface is provided with irregular patterns, and the irregular patterns are used to assist in scanning recognition, splicing and data correction.

2. The auxiliary scanning and data correction device for edentulous jaw implant impression according to claim 1, characterized in that: The device includes a maxillary device and a mandibular device. The maxillary device covers the labial and buccal sides extending to the membrane-gingival joint, covers the palatal vault with a smaller convexity on the palatal side, and extends the posterior edge to the palatal pit; the mandibular device covers the labial and buccal sides extending to the membrane-gingival joint, and the area close to the lingual side is relatively flat.

3. The auxiliary scanning and data correction device for edentulous jaw implant impression according to claim 2, characterized in that: The device is set to four different sizes of S, M, L, and XL through 3D reverse modeling according to the average values ​​of the length and width of the human dental arch; the inner surface of the device is consistent with the morphology of the alveolar ridge of the edentulous patient.

4. The auxiliary scanning and data correction device for edentulous jaw implant impression according to claim 3, characterized in that: The device is made of resin, metal, PEEK or medical material.

5. An auxiliary scanning and data correction method for edentulous jaw implant impressions, using the auxiliary scanning and data correction device for edentulous jaw implant impressions according to any one of claims 1 to 4, characterized in that: The auxiliary scanning method comprises: The device is numbered, and the device is scanned by a high-precision three-dimensional scanning device to obtain three-dimensional surface data of the device, wherein the number corresponds to the three-dimensional surface data of the device one by one; Install the scanning rod on the implant of the edentulous patient's gums, select the device of appropriate size according to the size of the edentulous patient's dental arch, the position and angle of the implant, and record the number of the device used; Matching the slot of the device with the scanning rod and connecting the device to the scanning rod; The device and the scanning rod are scanned by an intraoral scanner to capture identification features on the surface of the scanning rod and irregular images on the surface of the device, thereby obtaining composite data including the device and the scanning rod.

6. The auxiliary scanning and data correction method of edentulous jaw implant impression according to claim 5, characterized in that: The device is scanned by a high-precision three-dimensional scanning device, and the three-dimensional surface data of the device obtained by the scan is used as calibration standard data.

7. The auxiliary scanning and data correction method of edentulous jaw implant impression according to claim 6, characterized in that: The data correction method comprises: Virtually segmenting the composite data according to the number of scanning rods to obtain segmented composite data segments corresponding to the number of scanning rods; According to the device number, find the calibration standard data of the device, calibrate the segmented composite data segments, and obtain a calibrated scanning model; Implant treatment for edentulous patients is assisted by corrected posterior teeth scan models.

8. The auxiliary scanning and data correction method for edentulous jaw implant impression according to claim 7, characterized in that: The segmented composite data segment includes an irregular image corresponding to a portion of the device surface and a corresponding scanning rod.

9. The auxiliary scanning and data correction method of edentulous jaw implant impression according to claim 8, characterized in that: Correcting the segmented composite data segments specifically includes the following steps: Using the supporting AI-assisted correction software or dental design software, the segmented composite data segments are matched with the corresponding correction standard data, and the data in the segmented composite data segments and the irregular images on the device surface are adjusted based on the correction standard data to obtain the corrected scanning model.

10. The auxiliary scanning and data correction method of edentulous jaw implant impression according to claim 7, characterized in that: The data correction is arranged in the intraoral scanner, and the data correction is performed while the oral cavity of the edentulous patient is scanned, and the output scanning model is transmitted to the PC through a signal for display and storage.

Images