Denture intelligent modeling device based on oral scanning data

Abstract

This invention discloses an intelligent denture modeling device based on oral scan data, relating to the field of dental prosthesis modeling. This device, by setting a light refraction acquisition component for emitting blue light at the end of the scanner and a bite plate on the mounting tube, allows the patient to bite down on the bite plate and exert force when collecting oral data. This puts the oral soft tissues in a stressed state, and the light refraction acquisition component at the front end, in conjunction with the scanner, captures the soft tissue displacement under the biting force, obtaining the patient's oral data under the stressed state. This helps medical personnel obtain functional pressure impressions and improves the accuracy of denture fabrication.

Description

Technical Field

[0001] This invention relates to dental prosthesis modeling technology, specifically to a smart prosthesis modeling device based on oral scan data. Background Technology

[0002] Indirect and direct methods of dental prosthesis modeling are two core technical approaches for achieving digital restorations. The indirect method combines traditional and modern techniques. First, a negative impression is taken from the patient's mouth using materials such as silicone rubber or alginate. After pouring in plaster, a precise positive impression is created. Then, a high-precision desktop 3D scanner is used to scan the plaster model, generating a digital model. This technology is mature, widely used, and can obtain clear tissue details, but the process is cumbersome and suffers from cumulative errors due to impression material deformation and plaster expansion. The direct method is more advanced and efficient. The operator uses an intraoral scanner with a miniature camera to continuously capture millions of two-dimensional images directly in the patient's mouth. These images are then stitched together in real-time using algorithms to reconstruct a three-dimensional color digital model. This method greatly improves patient comfort, eliminates the discomfort of traditional impression taking, and generates data instantly for the design phase.

[0003] While intraoral direct scanning improves patient comfort, it has significant drawbacks when applied to cases involving the entire dental arch or long areas of edentulism. Due to the limited scanning area, the system is prone to cumulative bias when stitching together large-scale image data, resulting in unstable overall scanning accuracy over long spans. Furthermore, the mucosal tissue is fluid and elastic, easily deformed when the scanning head contacts or hovers over it, leading to a mismatch between the acquired morphology and the actual morphology under functional load. More critically, this method cannot capture soft tissue displacement under occlusal forces, making it difficult to obtain functional pressure impressions. This results in uneven pressure distribution on the fabricated denture tissue surfaces during chewing, inaccurate fit with the alveolar ridge, and consequently, tenderness or damage to the abutment teeth. Therefore, corresponding structural improvements to existing intraoral direct scanning instruments are necessary. Summary of the Invention

[0004] The purpose of this invention is to provide a smart denture modeling device based on oral scanning data to solve the problem that existing intraoral direct scanning instruments cannot capture soft tissue displacement under occlusal force, i.e., it is difficult to obtain functional pressure impressions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dental prosthesis intelligent modeling device based on oral cavity scan data, comprising:

[0006] The modeling host has a built-in modeling cloud platform that creates tooth models based on oral scan data;

[0007] The scanner is connected to the modeling host via a connecting cable. The scanner is used to emit blue light to the patient's oral cavity scanning surface and capture the light information reflected from the patient's oral cavity scanning surface. The scanner is connected to a mounting tube at one end, and a light refraction acquisition component is connected to the other end of the mounting tube.

[0008] A bite plate is installed on the mounting tube.

[0009] Preferably, a mounting ring is rotatably connected to the mounting tube, and the bite plate is fixedly mounted on the mounting ring.

[0010] Preferably, there are two bite plates, which are symmetrically arranged on the mounting tube. The bite plates are U-shaped and have L-shaped cross-sections. The openings of the bite plates face the light refraction and collection components.

[0011] Preferably, the bite plate has multiple mounting holes equidistantly spaced, a pad is snapped into the mounting hole, a connecting block is connected to the bottom of the pad, and a connecting groove is formed on the top of the pad. The connecting block is inserted into the mounting hole and the connecting groove.

[0012] Preferably, the pad is made of a soft material including rubber.

[0013] Preferably, the light refraction and acquisition assembly includes a mounting cylinder connected to the end of the mounting tube and a rotating cylinder rotatably connected inside the mounting cylinder. The end of the rotating cylinder is connected to a mounting head extending out of the mounting cylinder, and an outer refraction plate is connected to the mounting head. The end of the mounting tube is connected to a connecting plate inserted into the rotating cylinder, and a mounting post is connected to the connecting plate. An inner refraction plate is connected to the upper end of the mounting post.

[0014] Preferably, the rotating drum has a side groove on the side near the mounting tube, and the length of the side groove is greater than two-thirds of the circumference of the rotating drum.

[0015] Preferably, a motor is connected to the bottom of the mounting cylinder, and the output shaft of the motor is connected to the rotating cylinder.

[0016] Compared with existing technologies, the present invention provides a smart denture modeling device based on oral scan data. By setting a light refraction acquisition component for emitting blue light at the end of the scanner and setting a bite plate on the mounting tube, the patient can bite on the bite plate to exert force when collecting oral data. This puts the oral soft tissue in a state of force, and the light refraction acquisition component at the front end works with the scanner to capture the displacement of the soft tissue under the action of biting force, thereby obtaining the patient's oral data under the force state. This helps medical staff to obtain functional pressure impressions and improves the accuracy of denture fabrication. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the scanner structure provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of a partial structure of the bite plate provided in an embodiment of the present invention;

[0021] Figure 4 A schematic cross-sectional view of the light refraction acquisition component provided in an embodiment of the present invention. Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the overall structure of the rotating drum provided in an embodiment of the present invention;

[0023] Figure 6 A schematic cross-sectional view of the light refraction acquisition component provided in an embodiment of the present invention. Figure 2 .

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Modeling host; 2. Connecting cable; 3. Scanner; 4. Biting plate; 41. Mounting hole; 42. Pad; 421. Connecting block; 422. Connecting groove; 5. Mounting tube; 51. Mounting ring; 6. Mounting cylinder; 7. Rotating cylinder; 8. Mounting head; 9. Outer refraction plate; 10. Side slot; 11. Connecting plate; 12. Mounting column; 13. Inner refraction plate; 14. Motor. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] As attached Figure 1 To be continued Figure 6 As shown:

[0028] Example 1:

[0029] This invention provides a smart denture modeling device based on oral cavity scan data, comprising:

[0030] Modeling host 1 has a built-in modeling cloud platform that creates tooth models based on oral scan data;

[0031] The scanner 3 is connected to the modeling host 1 via the connecting cable 2. The scanner 3 is used to emit blue light to the patient's oral cavity scanning surface and capture the light information reflected from the patient's oral cavity scanning surface. The end of the scanner 3 is connected to the mounting tube 5, and the end of the mounting tube 5 is connected to the light refraction and acquisition component. The blue light emitted by the scanner 3 is refracted by the light refraction and acquisition component and hits the patient's oral cavity acquisition surface. The light information reflected from the oral cavity acquisition surface is refracted by the light refraction and acquisition component and returns to the scanner 3. The scanner 3 calculates and processes the acquired reflected light information to obtain the oral cavity acquisition surface data information.

[0032] The bite plate 4 is installed on the mounting tube 5.

[0033] As can be seen from the above, by setting a light refraction acquisition component for emitting blue light at the end of the scanner 3, and setting a bite plate 4 on the mounting tube 5, when collecting the patient's oral data, the patient can bite on the bite plate 4 to exert force, thereby putting the oral soft tissue in a state of force. Then, the light refraction acquisition component at the front end, together with the scanner 3, captures the displacement of the soft tissue under the action of biting force, and obtains the patient's oral data in the state of force. This helps medical staff to obtain functional pressure impressions and improve the accuracy of denture fabrication.

[0034] Specifically, the scanner 3 projects a specific wavelength of blue laser light or structured grating stripes onto the tooth surface. Its built-in high-speed complementary metal-oxide-semiconductor (CMOS) image sensor captures optical images of the deformation modulated by the tooth and gingival surfaces at a rate of thousands of frames per second. The device analyzes the geometric offset between the projected light spot and the reflection angle, and uses triangulation to calculate the depth data of each pixel in real time, thereby generating accurate dense point cloud information. Simultaneously, the modeling host 1's built-in modeling cloud platform system employs synchronous positioning and mapping technology. Based on common feature points (such as cusps and marginal ridges) in consecutive frames, it performs real-time matching and iterative nearest-point algorithm stitching, fusing hundreds of independent small-field-of-view 3D data blocks into a complete digital model of the entire dental arch. The scanning software of the modeling cloud platform can also integrate algorithms for automatically filtering redundant data and repairing cavities, ultimately generating a high-precision, high-resolution digital impression.

[0035] The mounting tube 5 is rotatably connected to the mounting ring 51, and the bite plate 4 is fixedly mounted on the mounting ring 51. The mounting ring 51 is made of hard materials such as metal to prevent the mounting tube 5 from deforming when the patient bites the bite plate 4. In addition, the mounting tube 5 can also rotate inside the mounting ring 51 to change the orientation of the light refraction acquisition component, which helps the operator obtain multi-angle patient oral data information.

[0036] To facilitate the insertion of the bite plate 4 between the patient's upper and lower teeth, two bite plates 4 are provided, and the two bite plates 4 are symmetrically arranged on the mounting tube 5. The bite plate 4 is U-shaped and can be attached to the patient's teeth. The cross-section of the bite plate 4 is L-shaped, and the crown and outer surface of the patient's teeth are attached to the bite plate 4. The opening of the bite plate 4 faces the light refraction and acquisition component, so as not to obstruct the light refraction and acquisition component from irradiating the patient's tooth surface with the collected blue light.

[0037] Since multiple teeth of the patient may be misaligned, in order to prevent the misaligned teeth from not being able to fully fit the bite plate 4 and bear the force, the bite plate 4 is provided with multiple mounting holes 41 at equal intervals. A pad 42 is inserted into the mounting hole 41. A connecting block 421 is connected to the bottom of the pad 42, and a connecting groove 422 is provided at the top of the pad 42. The connecting block 421 is inserted into the mounting hole 41 and the connecting groove 422. Medical staff can install the pad 42 in different mounting holes 41 on the bite plate 4 according to the patient's teeth condition, so that each of the patient's teeth can be in a state of force by biting the pad 42. Moreover, the pad 42 can be spliced ​​together by the connecting block 421 and the connecting groove 422, so that even if the patient's teeth are in a low position, they can still contact the combined thick pad 42 to bear the force.

[0038] To prevent the pad 42 from damaging the patient's teeth, the pad 42 is made of soft materials including rubber.

[0039] Example 2:

[0040] This invention provides a smart denture modeling device based on oral cavity scan data, comprising:

[0041] Modeling host 1 has a built-in modeling cloud platform that creates tooth models based on oral scan data;

[0042] The scanner 3 is connected to the modeling host 1 via the connecting cable 2. The scanner 3 is used to emit blue light to the patient's oral cavity scanning surface and capture the light information reflected from the patient's oral cavity scanning surface. The end of the scanner 3 is connected to the mounting tube 5, and the end of the mounting tube 5 is connected to the light refraction and acquisition component. The blue light emitted by the scanner 3 is refracted by the light refraction and acquisition component and hits the patient's oral cavity acquisition surface. The light information reflected from the oral cavity acquisition surface is refracted by the light refraction and acquisition component and returns to the scanner 3. The scanner 3 calculates and processes the acquired reflected light information to obtain the oral cavity acquisition surface data information.

[0043] The bite plate 4 is installed on the mounting tube 5.

[0044] As can be seen from the above, by setting a light refraction acquisition component for emitting blue light at the end of the scanner 3, and setting a bite plate 4 on the mounting tube 5, when collecting the patient's oral data, the patient can bite on the bite plate 4 to exert force, thereby putting the oral soft tissue in a state of force. Then, the light refraction acquisition component at the front end, together with the scanner 3, captures the displacement of the soft tissue under the action of biting force, and obtains the patient's oral data in the state of force. This helps medical staff to obtain functional pressure impressions and improve the accuracy of denture fabrication.

[0045] Specifically, the scanner 3 projects a specific wavelength of blue laser light or structured grating stripes onto the tooth surface. Its built-in high-speed complementary metal-oxide-semiconductor (CMOS) image sensor captures optical images of the deformation modulated by the tooth and gingival surfaces at a rate of thousands of frames per second. The device analyzes the geometric offset between the projected light spot and the reflection angle, and uses triangulation to calculate the depth data of each pixel in real time, thereby generating accurate dense point cloud information. Simultaneously, the modeling host 1's built-in modeling cloud platform system employs synchronous positioning and mapping technology. Based on common feature points (such as cusps and marginal ridges) in consecutive frames, it performs real-time matching and iterative nearest-point algorithm stitching, fusing hundreds of independent small-field-of-view 3D data blocks into a complete digital model of the entire dental arch. The scanning software of the modeling cloud platform can also integrate algorithms for automatically filtering redundant data and repairing cavities, ultimately generating a high-precision, high-resolution digital impression.

[0046] The mounting tube 5 is rotatably connected to the mounting ring 51, and the bite plate 4 is fixedly mounted on the mounting ring 51. The mounting ring 51 is made of hard materials such as metal to prevent the mounting tube 5 from deforming when the patient bites the bite plate 4. In addition, the mounting tube 5 can also rotate inside the mounting ring 51 to change the orientation of the light refraction acquisition component, which helps the operator obtain multi-angle patient oral data information.

[0047] To facilitate the insertion of the bite plate 4 between the patient's upper and lower teeth, two bite plates 4 are provided, and the two bite plates 4 are symmetrically arranged on the mounting tube 5. The bite plate 4 is U-shaped and can be attached to the patient's teeth. The cross-section of the bite plate 4 is L-shaped, and the crown and outer surface of the patient's teeth are attached to the bite plate 4. The opening of the bite plate 4 faces the light refraction and acquisition component, so as not to obstruct the light refraction and acquisition component from irradiating the patient's tooth surface with the collected blue light.

[0048] Since multiple teeth of the patient may be misaligned, in order to prevent the misaligned teeth from not being able to fully fit the bite plate 4 and bear the force, the bite plate 4 is provided with multiple mounting holes 41 at equal intervals. A pad 42 is inserted into the mounting hole 41. A connecting block 421 is connected to the bottom of the pad 42, and a connecting groove 422 is provided at the top of the pad 42. The connecting block 421 is inserted into the mounting hole 41 and the connecting groove 422. Medical staff can install the pad 42 in different mounting holes 41 on the bite plate 4 according to the patient's teeth condition, so that each of the patient's teeth can be in a state of force by biting the pad 42. Moreover, the pad 42 can be spliced ​​together by the connecting block 421 and the connecting groove 422, so that even if the patient's teeth are in a low position, they can still contact the combined thick pad 42 to bear the force.

[0049] To prevent the pad 42 from damaging the patient's teeth, the pad 42 is made of soft materials including rubber.

[0050] The light refraction and acquisition assembly includes a mounting cylinder 6 connected to the end of the mounting tube 5 and a rotating cylinder 7 rotatably connected inside the mounting cylinder 6. The end of the rotating cylinder 7 is connected to a mounting head 8 extending out of the mounting cylinder 6. An outer refraction plate 9 is connected to the mounting head 8. The end of the mounting tube 5 is connected to a connecting plate 11 inserted into the rotating cylinder 7. A mounting post 12 is connected to the connecting plate 11. An inner refraction plate 13 is connected to the upper end of the mounting post 12.

[0051] The blue light emitted by the scanner 3 is refracted by the inner refractive plate 13 and the outer refractive plate 9 and then shines on the patient's oral cavity surface. The light reflected from the patient's oral cavity surface is refracted by the outer refractive plate 9 and the inner refractive plate 13 before entering the scanner 3. The scanner 3 collects information about the patient's oral cavity in this way. The inner refractive plate 13 is connected to the mounting tube 5 through the mounting post 12 and the connecting plate 11. The refraction angle of the inner refractive plate 13 remains unchanged. Medical staff can change the orientation of the outer refractive plate 9 by rotating the rotating cylinder 7. This can increase the acquisition range of the scanner 3 without moving the scanner 3, which helps medical staff obtain more comprehensive oral cavity data information of the patient, thereby improving the accuracy of denture modeling.

[0052] The rotating cylinder 7 has a side slot 10 on the side near the mounting tube 5. The length of the side slot 10 is greater than two-thirds of the circumference of the rotating cylinder 7. The side slot 10 can prevent the side structure of the rotating cylinder 7 from blocking the transmission of blue light.

[0053] A motor 14 is connected to the bottom of the mounting cylinder 6, and the output shaft of the motor 14 is connected to the rotating cylinder 7. The user can drive the mounting cylinder 6 to rotate through the motor 14.

[0054] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A denture intelligent modeling device based on oral scanning data, characterized in that, include: Modeling host (1) has a built-in modeling cloud platform for creating tooth models based on oral scan data; The scanner (3) is connected to the modeling host (1) via the connecting line (2). The scanner (3) is used to emit blue light to the patient's oral cavity scanning surface and capture the light information reflected from the patient's oral cavity scanning surface. The end of the scanner (3) is connected to the mounting tube (5), and the end of the mounting tube (5) is connected to the light refraction acquisition component. The bite plate (4) is set on the mounting tube (5).

2. The device for intelligent modeling of dentures based on oral scanning data according to claim 1, characterized in that, An installation ring (51) is rotatably connected to the installation tube (5), and the bite plate (4) is fixedly installed on the installation ring (51).

3. The intelligent denture modeling device based on oral cavity scan data according to claim 1, characterized in that, Two bite plates (4) are provided, and the two bite plates (4) are symmetrically arranged on the mounting tube (5). The bite plates (4) are U-shaped and the cross-section of the bite plates (4) is L-shaped. The opening of the bite plates (4) faces the light refraction and collection component.

4. The intelligent denture modeling device based on oral scan data according to claim 3, characterized in that, The bite plate (4) has multiple mounting holes (41) at equal intervals. A pad (42) is snapped into the mounting hole (41). A connecting block (421) is connected to the bottom of the pad (42). A connecting groove (422) is opened on the top of the pad (42). The connecting block (421) is inserted into the mounting hole (41) and the connecting groove (422).

5. The intelligent denture modeling device based on oral cavity scan data according to claim 4, characterized in that, The pad (42) is made of soft materials including rubber.

6. The intelligent denture modeling device based on oral cavity scan data according to claim 1, characterized in that, The light refraction acquisition assembly includes a mounting cylinder (6) connected to the end of the mounting tube (5) and a rotating cylinder (7) rotatably connected inside the mounting cylinder (6). The end of the rotating cylinder (7) is connected to a mounting head (8) extending out of the mounting cylinder (6). An outer refraction plate (9) is connected to the mounting head (8). The end of the mounting tube (5) is connected to a connecting plate (11) inserted into the rotating cylinder (7). A mounting post (12) is connected to the connecting plate (11). An inner refraction plate (13) is connected to the upper end of the mounting post (12).

7. The intelligent denture modeling device based on oral cavity scan data according to claim 6, characterized in that, The rotating drum (7) has a side slot (10) on the side near the mounting tube (5), and the length of the side slot (10) is greater than two-thirds of the circumference of the rotating drum (7).

8. The intelligent denture modeling device based on oral cavity scan data according to claim 7, characterized in that, The bottom of the mounting cylinder (6) is connected to a motor (14), and the output shaft of the motor (14) is connected to the rotating cylinder (7).

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