An apparatus and method for assisted scanning and data correction of edentulous implant impressions

Abstract

The present application 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, the device comprising an arc-shaped base plate for fitting the edentulous jaw patient's gums and jaw; the arc-shaped base plate is provided with a slot for accommodating a scanning rod on the implant. The data correction method comprises: virtually dividing the composite data according to the number of scanning rods to obtain segmented composite data segments corresponding to the number of scanning rods; finding the correction standard data of the device according to the device number, correcting the segmented composite data segments to obtain a corrected scanning model; and assisting in the implantation treatment of the edentulous jaw patient through the corrected scanning model. The data correction method can be based on the matching AI-assisted correction software, the oral scanner with correction function, or the dental design software to improve the accuracy of the scanning data, facilitate the recognition, capture, splicing and post-data correction during the scanning of the intraoral scanner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of edentulous jaw implantation, in particular to an auxiliary scanning and data correction device and method for edentulous jaw implant impression. BACKGROUND

[0002] In the implantation treatment process of an edentulous jaw patient, it is the most important and necessary step to accurately transfer the spatial position of the implant / abutment in the patient's mouth to the digital model outside the mouth through digital impression taking technology. High-precision impression taking can well achieve the passive positioning of the superstructure of the edentulous jaw implantation fixed restoration, thereby reducing the occurrence of mechanical and biological complications and ensuring the long-term success rate of the edentulous jaw implantation treatment.

[0003] The currently commonly used digital impression taking technology is intraoral scanning technology. In the process of taking the intraoral scanning impression of the edentulous jaw implant, a metal or non-metal scanning rod with a special structure on the surface is first fixed to the implant / abutment on the upper part of the patient's mouth by using a matching screw, and then the fixed scanning rod and the surrounding soft tissue of the patient's gums are scanned by an intraoral scanner, so as to obtain the final digital impression reflecting the scanning rod and the surrounding tissue in the patient's mouth. However, since the intraoral scanner mainly realizes the taking of the impression through the process of data splicing, the oral tissue structure of the edentulous jaw implant patient 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. At the same time, the span between the implants of the edentulous jaw implant patient is often large, which leads to a large number of data splicing times and easy accumulation of splicing errors, resulting in that the precision of the obtained digital intraoral scanning impression cannot meet the clinical requirements. Therefore, it is currently difficult to simply use the intraoral scanner to take a high-precision edentulous jaw implant impression.

[0004] The existing auxiliary device can be fixed on the scanning rod, and the surface usually has a special structure to promote the scanning and matching process of the intraoral scanning equipment. However, these devices cannot avoid the problem of data splicing deformation of the scanner. For the impression taking of the edentulous jaw implant patient, the problem of scanning and splicing error of the intraoral scanner still exists with the extension of the scanning path, and the splicing deformation problem in the long-path scanning cannot be avoided by simply using these auxiliary devices. SUMMARY

[0005] The present application aims to provide an auxiliary scanning and data correction device and method for edentulous jaw implant impression, which can improve the problem of special oral tissue structure of the edentulous jaw implant patient, smooth and reflective surface, and lack of obvious and easily identifiable anatomical landmarks, which is not conducive to data collection and splicing. The existing device cannot avoid the problem of data splicing deformation of the scanner.

[0006] The technical scheme adopted by the present application is as follows: an auxiliary scanning and data correction device for edentulous jaw implant impression, the device comprises an arc-shaped base, the arc-shaped base is used for being attached to the tooth bed and the jaw of an edentulous patient; a slot is arranged on the arc-shaped base, the slot is used for accommodating an implant scanning rod; the surface of the arc-shaped base is a matte structure, and irregular patterns are arranged on the surface, the irregular patterns are used for assisting in scanning identification, splicing and data correction.

[0007] Further, in order to clearly distinguish the coverage range of the device, the device comprises a maxillary device and a mandibular device, the coverage range of the maxillary device extends to the labial gingival junction on the labial buccal side, covers the palate vault with a small convexity on the palatal side, and extends to the palatine fossa on the posterior edge; the coverage range of the mandibular device extends to the labial gingival junction on the labial buccal side, and the area close to the lingual side is relatively flat.

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

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

[0010] Further, in order to ensure the safety of the patient, the device is made of resin, metal, PEEK or medical materials.

[0011] Further, in order to avoid deviation of scanning data, an auxiliary scanning and data correction method for edentulous jaw implant impression is provided, the auxiliary scanning method comprises:

[0012] The device is numbered, and the device is scanned by a high-precision three-dimensional scanning equipment to obtain three-dimensional surface data of the device, and the number and the three-dimensional surface data of the device are one-to-one corresponding;

[0013] The scanning rod is installed on the implant of the tooth bed of the edentulous patient, a device with a suitable size is selected according to the size of the dental arch of the edentulous patient, the position and angle of the implant, and the number of the device used is recorded;

[0014] The slot of the device is matched with the scanning rod, and the device is connected with the scanning rod;

[0015] The device and the scanning rod are scanned by an intraoral scanner to capture the identification features on the surface of the scanning rod and the irregular images on the surface of the device, and composite data including the device and the scanning rod are obtained.

[0016] Further, in order to make the corrected reference data more accurate, the three-dimensional surface data of the device obtained by scanning the device by the high-precision three-dimensional scanning equipment is taken as the correction standard data.

[0017] Further, in order to output a high-precision scanning model, the data correction method comprises:

[0018] According to the number of scanning rods, the composite data is virtually segmented to obtain segmented composite data segments corresponding to the number of scanning rods.

[0019] According to the number of the device, the correction standard data of the device is found to correct the segmented composite data segments to obtain a corrected scanning model.

[0020] The corrected scanning model is used to assist in implant treatment of edentulous patients.

[0021] Further, in order to segment the composite data based on the scanning rod, the segmented composite data segments include irregular images of the surfaces of corresponding devices and corresponding scanning rods.

[0022] Further, the correction of the segmented composite data segments specifically comprises the following steps:

[0023] The segmented composite data segments and the corresponding correction standard data are matched by using a matching AI-assisted correction software or a dental design software, the data in the segmented composite data segments and the irregular images of the surfaces of the devices are adjusted based on the correction standard data, and a scanning model is obtained.

[0024] It should be noted that the dental design software is an existing software.

[0025] Further, in order to improve the work efficiency of scanning and data correction, the data correction is arranged in an intraoral scanner, data correction is performed while the oral cavity of the edentulous patient is scanned, and the output scanning model is transmitted to a PC for display and storage.

[0026] As described above, due to the adoption of the above technical solutions, the present application has the following advantages:

[0027] 1. Since intraoral scanning of edentulous patients has difficulties such as lack of clear anatomical landmark points and large mucosal tissue mobility, an auxiliary scanning device for edentulous implant impression is provided, the auxiliary scanning device for edentulous implant impression is scanned by the intraoral scanner instead of directly scanning the oral cavity of the patient, thereby improving the accuracy of the scanning data, facilitating recognition, capture and splicing during intraoral scanning, reducing scanning time and improving scanning precision.

[0028] 2. Since existing intraoral scanning auxiliary devices cannot avoid the problem of splicing deformation during long-path scanning, the present invention divides the scanning data into short paths by segmenting the scanning data, with each segment corresponding to a scanning rod and part of the irregular image of the device. This improves the accuracy of scanning and reduces the probability of data splicing deformation during long-span scanning of edentulous implants by intraoral scanners.

[0029] 3. The device is scanned using a high-precision 3D scanning device to obtain its 3D surface data. This 3D surface data is then used as a calibration standard to correct the scanned data, thereby improving the accuracy of the scanned model. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the device structure of the present invention;

[0031] Figure 2 This is a flowchart of the auxiliary scanning method of the present invention;

[0032] Figure 3 This is a flowchart of the data correction method of the present invention;

[0033] Figure 4 The maxillary device of the present invention;

[0034] Figure 5 The mandibular device of the present invention;

[0035] Figure 6 This is a detailed structural diagram of the device of the present invention;

[0036] Reference numerals: 1. Device; 2. Arc-shaped base; 3. Slot; 4. Scanning rod; 5. Maxillary device; 6. Mandibular device;

[0037] 201. Raised structure; 202. Recessed structure; 301. Inner wall of the slot; 302. Outer wall of the slot. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings.

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the 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 merely illustrative and not intended to limit the invention.

[0040] like Figure 1 As shown,

[0041] Since the intraoral scanner mainly realizes the impression taking through the data splicing process, however, the oral tissue structure of the edentulous jaw implant patient is special, the surface is smooth, reflective and lacks obvious and easily identifiable anatomical landmarks, which is not conducive to data collection and splicing, and the span between the implants of the edentulous jaw implant patient is often large, resulting in more data splicing times and easy accumulation of splicing errors, which leads to the precision of the obtained digital oral scan impression not meeting the clinical requirements, and it is currently difficult to simply use the intraoral scanner to take high-precision edentulous jaw implant impressions.

[0042] As shown in the drawings, an auxiliary scanning and data correction device for edentulous jaw implant impressions, the device 1 comprises an arc-shaped base 2 for fitting with the edentulous patient's dental arch and palate; the arc-shaped base 2 is provided with a slot 3 for accommodating an implant scanning rod 4; the surface of the arc-shaped base 2 is matte and provided with irregular patterns for assisting scanning recognition, splicing and data correction. Figures 1-6 The surface of the device 1 is matte and has irregular circular, triangular, square, coarse curved and wrinkled features, which can solve the problem of "smooth, reflective and lack of obvious and easily identifiable anatomical landmarks" of the oral tissue of the edentulous patient, and facilitate the recognition, capture and splicing of the intraoral scanner.

[0043] In particular, an auxiliary scanning and data correction method for edentulous jaw implant impressions is provided to solve the problem of "model splicing deformation that cannot be avoided during long path scanning" of the existing auxiliary device.

[0044] The auxiliary scanning method comprises:

[0045] The device 1 is numbered, and the three-dimensional surface data of the device 1 is obtained by scanning the device 1 with a high-precision three-dimensional scanning equipment, and the number and the three-dimensional surface data of the device 1 are one-to-one corresponding;

[0046] The scanning rod 4 is installed on the implant of the edentulous patient's dental arch, the device 1 with appropriate size is selected according to the size of the edentulous patient's dental arch, the implant position and angle, and the number of the device 1 used is recorded;

[0047] The slot 3 of the device 1 is matched with the scanning rod 4, and the device 1 is connected with the scanning rod 4; the device 1 is connected with the scanning rod 4 through occlusion recording silicone rubber, hand kneading silicone rubber or other medical materials; it is ensured that all the scanning rods 4 can be worn out from the slot 3;

[0048] The device 1 and the scanning rod 4 are scanned by the intraoral scanner, the identification features on the surface of the scanning rod 4 and the irregular images on the surface of the device 1 are captured, and the composite data including the device 1 and the scanning rod 4 are obtained.

[0049] The device 1 and the scanning rod 4 are scanned by the intraoral scanner, the identification features on the surface of the scanning rod 4 and the irregular images on the surface of the device 1 are captured, and the composite data including the device 1 and the scanning rod 4 are obtained.

[0050] The data correction method comprises:

[0051] According to the number of scanning rods 4, the composite data is virtually segmented to obtain segmented composite data segments corresponding to the number of scanning rods 4; each segmented segment comprises one scanning rod 4 and part of the device 1, so that the entire composite data is segmented into multiple segments;

[0052] According to the number of the device 1, the correction standard data of the device 1 is found, the segmented composite data segments are corrected, and the multiple segments are compared with the correction standard data respectively, if the data with large deviation is corrected through the correction standard data, the corrected scanning model is obtained, and the data in the scanning model is the data most suitable for the patient's oral condition after being corrected according to the oral data of the edentulous patient;

[0053] The edentulous patient is assisted in implant treatment through the scanning model.

[0054] The method decomposes the splicing error accumulated by long-span scanning, thereby fundamentally reducing the data splicing deformation problem of the intraoral scanner in long-span scanning of the edentulous patient, and achieving the data correction function that the previous auxiliary device cannot achieve.

[0055] Embodiment 1

[0056] As shown in Figures 4-5 In order to clearly distinguish the coverage range of the device 1, the device 1 comprises a maxillary device 5 and a mandibular device 6, the coverage range of the maxillary device 5 extends to the mucogingival junction on the labial and buccal sides, and the palatine vault is covered with a small convexity on the palatine side, and the posterior edge extends to the palatine fossa; the coverage range of the mandibular device 6 extends to the mucogingival junction on the labial and buccal sides, and the area near the tongue side is relatively flat.

[0057] Since the maxillary and mandibular structures in the oral cavity are quite different, the device 1 is divided into the maxillary device 5 and the mandibular device 6, which is convenient for better adapting to the internal structure of the patient's oral cavity; the coverage range of the maxillary device 5 extends to the mucogingival junction on the labial and buccal sides, and the palatine vault to the palatine fossa, and the extension length enables it to be better fixed on the maxilla, which is convenient for subsequent scanning by the intraoral scanner; the coverage range of the mandibular device 6 extends to the mucogingival junction on the labial and buccal sides, and since the tongue blocks the tongue side of the mandible, it is designed to have a relatively flat feature area.

[0058] The area covered by the device 1 is an area that is difficult for the intraoral scanner to distinguish, smooth in surface, reflective, and lacks obvious and easily identifiable anatomical landmarks; and the surface of the arc-shaped base 2 of the device 1 is a matte structure, and irregular patterns are provided on the surface, so that when the intraoral scanner scans, the irregular patterns on the surface of the device 1 can be recognized, which is convenient for capturing and recognizing data, reduces the scanning time, and at the same time, the irregular patterns are used for data correction in the later stage, thereby improving the scanning accuracy.

[0059] Embodiment 2

[0060] In an embodiment of the present application, the device 1 is provided in four different sizes, S, M, L, XL, by 3D reverse modeling according to the average values of the length and width of human dental arch, and the inner surface of the device 1 is consistent with the morphology of the alveolar ridge of the edentulous patient.

[0061] The 3D reverse modeling software is a tool for modeling based on the real object. It can create a 3D representation of the existing structure through 3D scanning technology and convert it into a digital model of polygons or triangular faces. Through the 3D reverse modeling software, four different sizes of S, M, L, XL of the auxiliary correction device 1 are designed according to the average values of the length and width of 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 special irregular non-repeating structure, which can be irregular circular, triangular, square, coarse curved line, wrinkle or combination of these forms. The device 1 is slotted 3 in the middle to accommodate the oral scanning rod 4 installed in the patient's mouth, and at the same time used to fix the device 1 on the scanning rod 4.

[0062] According to the size of the oral cavity and the gum of the edentulous patient, the device 1 of the appropriate size is selected and placed on the gum and connected with the scanning rod 4, which is used to cover the area of the patient's oral cavity which is relatively smooth and not conducive to scanning by the oral scanner.

[0063] Embodiment 3

[0064] In an embodiment of the present application, the material of the device 1 is resin, metal, PEEK or medical material.

[0065] The material of the device 1 mainly considers non-polluting, harmless, stable morphology and durable, easy to disinfect, and the irregular pattern on it needs to be easily identified for the oral scanner to identify.

[0066] Resin has the characteristics of low quality and comfort, which can reduce the foreign body sensation in the oral cavity, and doctors can easily make it at the chair, and it can be adjusted after production to ensure the fit of the device 1 with the oral cavity and improve the comfort of wearing;

[0067] Metal material has the characteristics of corrosion resistance and wear resistance, and the sensitivity of metal material to temperature is low, which will not cause damage to the device 1 due to the temperature in the patient's oral cavity or the storage temperature, and it can be reused after disinfection;

[0068] PEEK has stable performance, good biocompatibility, wear resistance and non-reflective surface, which can ensure that the device 1 is accurately identified and captured by the oral scanner, and at the same time, PEEK material has low density, which makes the patient more stable and comfortable after installation in the mouth;

[0069] Medical materials combine multiple advantages, such as high strength, high biocompatibility, good wear resistance and corrosion resistance, and the like, and these materials are increasingly widely used in the field of oral medicine, and can meet the comprehensive needs of patients for aesthetics, comfort and durability.

[0070] Embodiment 4

[0071] As Figure 2 shown, one embodiment of the present application is that the auxiliary scanning method comprises:

[0072] The device 1 is numbered for identification; the device 1 is scanned by a high-precision three-dimensional scanning device to obtain three-dimensional surface data of the device 1, and the number and the three-dimensional surface data of the device 1 correspond one-to-one; the three-dimensional surface data can be stored in an intraoral scanner or a matching AI auxiliary correction software for easy query and comparison;

[0073] A scanning rod 4 is installed on the implant of the edentulous patient's dental bed, a device 1 of appropriate size is selected according to the size of the edentulous patient's dental arch, the position and angle of the implant, and the number of the device 1 used is recorded; the scanning rod 4 is used to assist the intraoral scanner in positioning, and can also fix the device 1, so the device 1 needs to be selected to have an appropriate size to accommodate the scanning rod 4 in the slot 3 of the device 1;

[0074] The slot 3 of the device 1 is matched with the scanning rod 4, and the device 1 is connected with the scanning rod 4; the selected device 1 is fixed on the scanning rod 4 in the patient's mouth by using bite registration silicone rubber / hand kneading silicone rubber or other medical materials, to ensure that all scanning rods 4 can pass out of the slot 3 of the device 1, and the identification features on the surface of the scanning rod 4 are not blocked by the silicone rubber or the selected device 1;

[0075] After the silicone rubber solidifies, the device 1 and the scanning rod 4 are scanned by using the intraoral scanner to capture the identification features on the surface of the scanning rod 4 and the irregular images on the surface of the device 1, and to obtain composite data including the device 1 and the scanning rod 4.

[0076] The three-dimensional surface data of the device 1 scanned by the high-precision three-dimensional scanning device is used as correction standard data, and then data correction is started.

[0077] 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 digital model outside the mouth by the digital impression taking technology, and high-precision impression taking can better realize passive positioning of the superstructure of the edentulous implant fixed restoration, thereby reducing the occurrence of mechanical and biological complications and ensuring the long-term success rate of edentulous implant treatment.

[0078] Embodiment 5

[0079] AsFigure 3 As shown, in one embodiment of the present invention, the data correction method includes:

[0080] Based on the number of scanning rods 4, the composite data obtained by the auxiliary scanning method is virtually segmented to obtain composite data fragments with the corresponding number of scanning rods 4.

[0081] Based on the device number, find the calibration standard data for device 1, and calibrate the segmented composite data fragments to obtain the scanning model.

[0082] Implant treatment for edentulous patients can be assisted by scanning models.

[0083] The segmented composite data fragment includes the irregular image on the surface of the corresponding part of the device 1 and the corresponding scanning rod 4.

[0084] This auxiliary device 1 and its corresponding correction method can effectively improve the efficiency and accuracy of intraoral scanning for edentulous implant impression taking, obtaining a high-precision intraoral scanning edentulous implant model that meets clinical needs and cannot be obtained by existing auxiliary devices 1. Simultaneously, the digital data from this device 1 can be embedded in the intraoral scanner for automatic recognition and correction during scanning; it can also be combined with accompanying AI-assisted correction software for automatic recognition, segmentation, correction, and data output, effectively saving time in clinical intraoral scanning for edentulous implant impression taking. Furthermore, this device 1 is reusable, saving materials and costs.

[0085] Example 6

[0086] like Figure 3 As shown, one embodiment of the present invention includes the following steps for correcting the segmented composite data fragments:

[0087] Using the accompanying AI-assisted correction software or dental design software, the segmented composite data fragments are matched with the corresponding correction standard data. Based on the correction standard data, the data in the segmented composite data fragments and the irregular image on the surface of device 1 are adjusted to obtain the scanning model.

[0088] Dental design software plays a crucial role in the field of digital dentistry. It enables doctors and technicians to design precise dental restoration plans on computers. The dental design software and the accompanying AI-assisted correction software used in this embodiment are both existing technologies. Through the dental design software, the composite data after scanning can be corrected, thereby designing a more suitable implant treatment plan for each patient's edentulous jaw.

[0089] Example 7

[0090] One embodiment of the present application is that the data correction is arranged in the intraoral scanner, and the data correction is performed while scanning the mouth of the edentulous patient, and the output scan model is transmitted to the PC for display and storage.

[0091] The intraoral scanner stores the correction standard data in advance, and the composite data obtained after scanning is compared with the correction standard data, and the composite data is corrected, so that the scan model is output, and the data of the scan model avoids the data splicing error of the existing intraoral scanner when scanning the long-span mouth, and the scanned data lacks easily identifiable anatomical markers.

[0092] Embodiment 8

[0093] Another embodiment of the present application is that the scanning of the scanning rod 4 is performed in segments according to the number of implants in the mouth of the patient, and the irregular structures on the surface of the device 1 and the corresponding scanning rod 4 are scanned respectively, the intraoral scanner automatically identifies the scanned irregular shape of the device 1, and automatically matches the scanned data segments to the corresponding numbered device 1 correction standard data stored in the intraoral scanner through the irregular structures on the surface of the device 1, so as to realize the functions of data scanning, matching and correction, and finally output a high-precision scan model.

[0094] The scanning and correction functions are integrated in the intraoral scanner, and the composite data scanned by the intraoral scanner can be matched and corrected with the correction standard data at the same time, so as to improve the work efficiency of the output scan model and efficiently propose the oral treatment plan for the edentulous patient.

[0095] Embodiment 9

[0096] Another embodiment of the present application is that the obtained overall scan composite data is imported into the matched AI-assisted correction software, the unique number of the selected auxiliary correction device 1 is input into the software, the software automatically calls the device 1 correction standard data stored in the internal storage, and combines the AI algorithm to automatically identify the scanning rod 4 and the surrounding auxiliary correction device in the scan data, and automatically realize the segmentation of the scanned composite data, divide the data into 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.

[0097] The method combines the AI algorithm to automatically segment the scanned composite data, and then compares and corrects with the correction standard data, greatly reducing the labor, and improving the accuracy of the data.

[0098] Embodiment 10

[0099] As Figure 6As shown in the detailed structural schematic diagram of the device 1, the arc-shaped base 2 is provided with a convex structure 201 and a concave structure 202, and the convex structure 201 and the concave structure 202 constitute irregular patterns on the surface of the arc-shaped base 2. Figure 6 As shown in the detailed structural schematic diagram of the device 1, the arc-shaped base 2 is provided with a convex structure 201 and a concave structure 202, and the convex structure 201 and the concave structure 202 constitute irregular patterns on the surface of the arc-shaped base 2.

[0100] Compared with the smooth and non-special-identified inner surface of the mouth of the edentulous patient without the device 1, the device 1 can make the intraoral scanner accurately identify the convex structure 201 and the concave structure 202 on the surface of the arc-shaped base 2, so that the scanned data is more accurate.

[0101] The irregular patterns on the surface of the arc-shaped base 2 can be spherical, irregular polygonal or corrugated, and the specific shape is set according to the actual scanning condition.

[0102] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An apparatus for assisting scanning and data correction of a edentulous jaw implant impression, characterized in that, The device comprises an arc-shaped base plate for fitting the palate and jaw of an edentulous patient; the arc-shaped base plate is provided with a slot for accommodating a scanning rod on the implant; The surface of the arc-shaped base plate is matte and provided with irregular patterns for assisting in scanning identification, splicing and data correction; the data correction is provided in the intraoral scanner to correct data while scanning the oral cavity of the edentulous patient; The device comprises a maxillary device and a mandibular device; the maxillary device covers the labial and buccal sides to the mucogingival junction, the palatal side covers the palatine vault with a small convexity, and the posterior edge extends to the palatine fovea; the mandibular device covers the labial and buccal sides to the mucogingival junction, and the area close to the lingual side is relatively flat; the device is made of resin, metal, PEEK or medical materials; the device is numbered, and the number and the three-dimensional surface data of the device correspond one-to-one; 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 human dental arch by 3D reverse modeling; the inner surface of the device is consistent with the shape of the alveolar ridge of the edentulous patient.

2. A method for assisting scanning and data correction of an edentulous jaw implant impression using the apparatus for assisting scanning and data correction of an edentulous jaw implant impression according to claim 1, characterized in that, The auxiliary scanning method comprises: The device is numbered, and the three-dimensional surface data of the device is obtained by scanning the device with a high-precision three-dimensional scanning device; the number and the three-dimensional surface data of the device correspond one-to-one; A scanning rod is installed on the implant of the palate of the edentulous patient, a device of appropriate size is selected according to the size of the dental arch of the edentulous patient, the position and angle of the implant, and the number of the device used is recorded; The slot of the device is matched with the scanning rod, and the device is connected with the scanning rod; The device and the scanning rod are scanned by an intraoral scanner to capture the identification features on the surface of the scanning rod and the irregular images on the surface of the device, and to obtain the composite data including the device and the scanning rod; The device is scanned by a high-precision three-dimensional scanning device, and the three-dimensional surface data of the device obtained by scanning is used as the correction standard data; The data correction method comprises: According to the number of scanning rods, the composite data is virtually segmented to obtain segmented composite data segments corresponding to the number of scanning rods; according to the number of the device, the correction standard data of the device is found, and the segmented composite data segments are corrected to obtain a corrected scanning model; the corrected scanning model is used to assist in implant treatment of the edentulous patient; The segmented composite data segments include irregular images on the surface of the corresponding part of the device and the corresponding scanning rod; The correction of the segmented composite data segments specifically comprises the following steps: The segmented composite data segments and the corresponding correction standard data are matched by using a matching AI assisted correction software or a dental design software, the data in the segmented composite data segments and the irregular images on the surface of the device are adjusted based on the correction standard data, and a corrected scanning model is obtained; The data correction is provided in the intraoral scanner to correct data while scanning the oral cavity of the edentulous patient, and the output scanning model is transmitted to a PC for display and storage.

Images