Multifunctional occlusion positioning device

Abstract

The utility model provides a multifunctional occlusion positioning device which comprises a scanning rod used for being installed on an edentulous position of a patient; the occlusion positioning piece is arranged at one end of the scanning rod, and one end, deviating from the scanning rod, of the occlusion positioning piece is provided with an occlusion matching surface; and the outline of the occlusal matching surface is used for being matched with the occlusal surface of an alignment tooth on one side opposite to the tooth missing position. The problem that in the prior art, scanned three-dimensional data cannot reflect the occlusion relation of upper and lower jaw alignment teeth, so that the occlusion relation of a subsequently manufactured real dental cast is unstable, and the quality of a prosthesis in the oral cavity of a patient is affected is solved.

Description

Technical Field

[0001] The present application relates to the technical field of dental implant tools, and more specifically, to a multifunctional occlusal positioning device. Background Art

[0002] After the doctor places an implant in the patient's mouth, he or she needs to install an abutment and dental restoration on top of the implant. To better fit the patient's teeth, an abutment is usually made. Since the abutment is designed using computer software, the scanning rod can be used to transfer information such as the inclination and implant depth of the implant in the patient's mouth. Therefore, the scanning rod is directly installed on the implant in the patient's edentulous position, and the scanner is used to directly scan the implant information in the patient's mouth to obtain a digital dental model. The scanned digital dental model can be 3D printed to obtain a physical dental model. The practical dental model can reflect the three-dimensional data of the patient's upper and lower teeth, facilitating the subsequent manufacture of dental implants and allowing the implant doctor to better plan the surgery and preoperative design.

[0003] In the existing oral scanning process, Figure 1 As shown, the scanning rod 200 is typically installed only on the edentulous site 100. The scanning rod 200 is a single rod. For example, when installed on the edentulous site in the upper jaw of a patient's mouth, it does not occlude with the corresponding tooth in the mandible. Consequently, the scanning rod 200 is free in the edentulous site and can only transfer information related to the tilt degree and implant depth of the edentulous site in the patient's mouth. The scanned 3D data cannot reflect the occlusal relationship with the corresponding tooth in the mandible, resulting in an unstable occlusal relationship in the subsequently manufactured physical dental model, which can easily lead to inaccurate occlusal relationships in the resulting physical dental model.

[0004] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0005] The purpose of this application is to provide a multifunctional occlusal positioning device, which solves the problem in the prior art that the scanned three-dimensional data cannot reflect the occlusal relationship with the opposing teeth, resulting in unstable occlusal relationship of the subsequently manufactured physical dental models, affecting the quality of the restoration in the patient's oral cavity.

[0006] To achieve the above objectives, the technical solution adopted in this application is:

[0007] In one aspect, the present application provides a multifunctional occlusal positioning device, comprising: a scanning rod, the scanning rod being adapted to be mounted on a patient's edentulous position;

[0008] An occlusal positioning member is provided at one end of the scanning rod, and an end of the occlusal positioning member facing away from the scanning rod has an occlusal matching surface;

[0009] The outer contour of the occlusal matching surface is used to match the occlusal surface of the opposing tooth on the side opposite the missing tooth.

[0010] Optionally, the occlusal positioning member includes: an occlusal platform body, the occlusal matching surface being located on a surface of the occlusal platform body facing away from the scanning rod;

[0011] The docking portion is arranged at one end of the occlusal platform body away from the occlusal matching surface and is used to connect the scanning rod.

[0012] Optionally, the occlusal platform body includes: a hard supporting portion, the butt joint portion being arranged on an end surface of the hard supporting portion;

[0013] The occlusal shaping part is arranged at one end of the hard supporting part away from the scanning rod, and forms an occlusal matching surface through the occlusion of the patient's opposing teeth.

[0014] Optionally, the occlusal platform body includes a manual shaping portion, and the docking portion is provided at one end of the manual shaping portion;

[0015] The surface of the other end of the manual shaping part is repaired by an external instrument to form an occlusal fitting surface.

[0016] Optionally, the outer diameter of the occlusal platform gradually increases in a direction away from the scanning rod.

[0017] Optionally, the scanning rod includes: a rod body, one end of which is provided with an internal connection portion, and the rod body is installed on the patient's missing tooth position through the internal connection portion;

[0018] The external connection part is arranged at one end of the rod body away from the internal connection part and is used to connect the docking part.

[0019] Optionally, the docking portion includes: a docking groove, which is provided on the end surface of the occlusal platform facing the scanning rod;

[0020] The external connection part comprises a connection boss which is detachably embedded in the docking groove.

[0021] Optionally, the connecting boss is a polygonal boss, and the docking groove is adapted to the connecting boss.

[0022] Optionally, an exhaust hole is provided on the bite-fitting surface, and the exhaust hole is connected to the docking groove.

[0023] Optionally, one end of the rod body facing the occlusal positioning member is configured to be tapered.

[0024] The multifunctional occlusal positioning device provided by this application has at least one beneficial effect: during the three-dimensional scanning process of a patient's oral cavity, by installing a scanning rod on the patient's edentulous area, information such as the inclination and implant depth of the patient's oral implant can be transferred. By installing an occlusal positioning member at the end of the scanning rod, the outer contour of the occlusal matching surface on the occlusal positioning member is designed to match the occlusal surface of the opposing tooth on the side opposite the edentulous area. When the patient's upper and lower jaws occlude, the occlusal matching surface and the occlusal surface of the opposing tooth align to form a stable occlusal relationship, simulating the normal occlusal state of the patient's oral cavity after the edentulous area is installed. In this way, the occlusal positioning member installed on the scanning rod scans and transfers information about the stable occlusal relationship of the patient's upper and lower jaws, thereby obtaining more comprehensive three-dimensional scanned data and ensuring more accurate three-dimensional data of the patient's upper and lower jaws. The occlusal relationship of the subsequently manufactured physical dental model is more stable, facilitating the subsequent manufacture of dental implants and allowing implant surgeons to better plan and preoperatively design surgeries. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a schematic diagram of the structure of the prior art that only uses a scanning rod;

[0027] Figure 2 A schematic diagram of the structure of a multifunctional occlusal positioning device provided in an embodiment of the present application when connected to the upper jaw;

[0028] Figure 3 A schematic diagram of the structure of a multifunctional occlusal positioning device provided in an embodiment of the present application when the upper and lower jaws are occluded;

[0029] Figure 4 A schematic structural diagram of a multifunctional occlusal positioning device provided in an embodiment of the present application;

[0030] Figure 5 A schematic structural diagram of a scanning rod of a multifunctional occlusal positioning device provided in an embodiment of the present application;

[0031] Figure 6 A schematic structural diagram of a first structure of an occlusal positioning member of a multifunctional occlusal positioning device provided in an embodiment of the present application;

[0032] Figure 7A structural schematic diagram of a second structure of an occlusal positioning member of a multifunctional occlusal positioning device provided in an embodiment of the present application.

[0033] Among them, the reference numerals in the figures are:

[0034] 100. Missing tooth position; 110. Opposing tooth; 111. Occlusal surface; 200. Scanning rod; 210. Rod body; 220. Internal connecting part; 230. External connecting part; 231. Connecting boss; 300. Occlusal positioning member; 310. Occlusal matching surface; 320. Occlusal platform body; 321. Hard supporting part; 322. Occlusal shaping part; 323. Manual shaping part; 330. Docking part; 331. Docking groove; 332. Exhaust hole. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the present application is 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 this application and are not intended to limit this application.

[0036] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be located directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on this technical solution. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0037] like Figure 2 、 Figure 3 As shown, for ease of structural description, let's take a patient with a missing tooth in the upper jaw as an example. The location of the missing tooth is the missing tooth site, and the tooth on the lower jaw corresponding to the missing tooth is defined as the antagonist tooth. The patient's antagonist tooth is intact, and the upper surface of the antagonist tooth on the lower jaw is the occlusal surface. When the upper and lower jaws occlude, the missing tooth at the missing tooth site prevents the upper and lower jaws from forming a stable occlusal relationship. Therefore, the multifunctional occlusal positioning device proposed in this embodiment is a tool used during the three-dimensional data scanning process to better repair missing teeth.

[0038] like Figure 2 、 Figure 3 、 Figure 4As shown, this embodiment provides a multifunctional occlusal positioning device, primarily comprising a scanning rod 200 and an occlusal positioning member 300. The scanning rod 200 can be cylindrical and is mounted on the patient's edentulous site 100. Typically, an artificial tooth root is first installed in the edentulous site 100. By connecting the scanning rod 200 to the artificial tooth root, information such as the inclination and implant depth of the implant in the patient's mouth can be identified. After scanning, corresponding three-dimensional data can be obtained in a digital dental model. This is the fundamental function of the scanning rod 200 in this field. In this embodiment, the occlusal positioning member 300 is disposed at one end of the scanning rod 200. The end of the occlusal positioning member 300 facing away from the scanning rod 200 has an occlusal matching surface 310. The contour of the occlusal matching surface 310 is designed to match the occlusal surface 111 of the opposing tooth 110 on the side opposite the edentulous site 100. The occlusal matching surface 310 simulates the occlusal surface 111 of the missing tooth (or the tooth to be restored), so that the upper and lower jaws can achieve stable occlusion at the missing tooth position 100 when the patient bites.

[0039] like Figure 2 、 Figure 3 As shown, the bend transition structure of this embodiment can transfer information such as the inclination and implant depth of an implant in the patient's mouth by installing a scanning rod 200 on the edentulous area 100 during a three-dimensional scan of the patient's oral cavity. By installing an occlusal positioning member 300 at the end of the scanning rod 200, the occlusal matching surface 310 on the occlusal positioning member 300 is configured to mate with the occlusal surface 111 of the antagonist tooth 110 on the side opposite the edentulous area 100. When the patient's upper and lower jaws occlude, the occlusal matching surface 310 mates with the occlusal surface 111 of the antagonist tooth 110, forming a stable occlusal relationship. This avoids the situation where the lower antagonist tooth 110 and the upper scanning rod 200 are in a free state when using a single scanning rod 200. The occlusal positioning member 300 and the antagonist tooth 110 maintain stable occlusion, simulating the normal occlusal state of the edentulous area 100 in the patient's mouth after the implant is installed. In this way, the information of the stable occlusal relationship of the patient's upper and lower jaws is scanned and transferred through the occlusal positioning member 300 installed on the scanning rod 200, thereby obtaining more comprehensive scanning three-dimensional data, ensuring that the three-dimensional data scanned by the patient's upper and lower jaws are more accurate.

[0040] like Figure 2 、 Figure 3 、 Figure 4As shown, the occlusal positioning member 300 specifically includes an occlusal platform 320 and a docking portion 330. The occlusal mating surface 310 is located on the surface of the occlusal platform 320 facing away from the scanning rod 200. The docking portion 330 is provided at one end of the occlusal platform 320 facing away from the occlusal mating surface 310 and is used to connect to the scanning rod 200. The provision of the docking portion 330 on the occlusal platform 320 facilitates docking with the scanning rod 200, allowing the occlusal positioning member 300 to be installed on the scanning rod 200.

[0041] Furthermore, the engagement platform 320 of this embodiment can be provided in various forms, as follows:

[0042] like Figure 3 、 Figure 4 、 Figure 6 As shown, the first form of the occlusal platform 320 specifically includes: a hard support portion 321 and an occlusal shaping portion 322. The hard support portion 321 has a high structural strength and basically does not deform when under occlusal pressure. The docking portion 330 is provided on the end surface of the hard support portion 321. The hard support portion 321 provides stable support for the docking portion 330, so that the entire occlusal positioning member 300 can be stably connected to the scanning rod 200. The occlusal shaping portion 322 is provided at the end of the hard support portion 321 away from the scanning rod 200, and forms an occlusal matching surface 310 through the occlusion of the patient's aligning teeth 110; in the specific structure, the occlusal shaping portion 322 can be made of a plastic material, which can be deformed when subjected to the occlusal force of the teeth, and the deformation can still be maintained after the upper and lower jaws are separated. This plastic material can be a polymer resin material. In this way, the occlusal matching surface 310 can be formed on the shapeable occlusal shaping portion 322 only by the patient biting, so that the outer contour of the occlusal matching surface 310 is faster and the contour shape is accurately matched with the occlusal surface 111 of the opposing tooth 110.

[0043] like Figure 3 、 Figure 4 、 Figure 7As shown, the second form of the occlusal platform 320 specifically includes a manual shaping portion 323. The manual shaping portion 323 has a certain structural strength and does not deform during occlusion, but can be ground by external instruments (such as dental handpieces). A docking portion 330 is provided at one end of the manual shaping portion 323. The manual shaping portion 323 provides stable support for the docking portion 330, allowing the entire occlusal positioning member 300 to be stably connected to the scanning rod 200. The surface of the other end of the manual shaping portion 323 is repaired using external instruments to form an occlusal matching surface 310. In this way, the dentist can manually adjust the end surface of the manual shaping portion 323 according to the shape of the occlusal surface 111 of the patient's antagonist's tooth 110 to obtain the occlusal matching surface 310. The dentist can use a dental handpiece to correct the high occlusal point and use occlusal adjustment material to repair the occlusal gap between the upper and lower teeth. This ensures that the outer contour of the occlusal matching surface 310 accurately matches the occlusal surface 111 of the antagonist's tooth 110. The manual shaping portion 323 is made of relatively hard polyurethane.

[0044] like Figure 4 、 Figure 6 、 Figure 7 As shown, the outer diameter of the occlusal platform 320 of this embodiment gradually increases in the direction away from the scanning rod 200. This results in a smaller diameter at the end closer to the scanning rod 200 and a larger diameter at the end farther away from the scanning rod 200. The smaller end is closer to the gums, thus reducing the probability of contact with adjacent teeth and preventing any impact on the marking direction of the scanning rod 200. The larger end, on the other hand, has an occlusal matching surface 310. This larger occlusal matching surface 310 forms a larger contact area with the occlusal surface 111 of the opposing tooth 110, thereby improving the occlusal stability of the upper and lower jaws and making the scanned 3D occlusal data more accurate.

[0045] like Figure 3 、 Figure 4 、 Figure 5 As shown, further, the scanning rod 200 of this embodiment specifically includes: a rod body 210 and an external connecting portion 230. An internal connecting portion 220 is provided at one end of the rod body 210, and the rod body 210 is installed on the patient's edentulous position 100 through the internal connecting portion 220; the external connecting portion 230 is provided at one end of the rod body 210 away from the internal connecting portion 220, and is used to connect to the docking portion 330. The internal connecting portion 220 can be connected by a thread, so that the rod body 210 can be stably connected to the maxilla, thereby positioning the direction and depth of the implant. The external connecting portion 230 cooperates with the docking portion 330 to achieve a detachable connection, which facilitates the installation of the occlusal positioning member 300 on the rod body 210, and realizes the function of simulating a stable occlusal relationship at the lower end of the rod body 210.

[0046] like Figure 3 、 Figure 5 、 Figure 6As shown, the docking portion 330 of this embodiment specifically includes a docking groove 331, which is formed on the end surface of the engagement platform 320 facing the scanning rod 200. The external connection portion 230 includes a connecting boss 231, which is removably embedded in the docking groove 331. When installing the engagement positioning member 300, the engagement platform 320 only needs to be inserted into the connecting boss 231 through the docking groove 331, making the installation process more convenient and quick.

[0047] like Figure 4 、 Figure 5 、 Figure 6 As shown, further, in this embodiment, the connecting boss 231 is a polygonal boss, and the docking groove 331 is adapted to fit the connecting boss 231. In a specific structure, the connecting boss 231 can be a regular hexagonal deformed boss, and the corresponding docking groove 331 is a hexagonal groove. When the hexagonal docking groove 331 is sleeved on the outside of the hexagonal connecting boss 231, circumferential positioning is achieved, preventing the engaging locating member 300 from rotating circumferentially relative to the scanning rod 200, thereby improving the connection stability.

[0048] like Figure 5 、 Figure 6 、 Figure 7 As shown, in this embodiment, the engaging mating surface 310 is provided with an exhaust hole 332, which is connected to the docking groove 331. When the connecting boss 231 is inserted into the docking groove 331, air in the docking groove 331 is exhausted through the exhaust hole 332, thereby preventing air from being squeezed in the docking groove 331 and causing the connecting boss 231 to be inserted insufficiently into the docking groove 331.

[0049] like Figure 4 、 Figure 5 As shown, the rod body 210 of this embodiment is tapered at one end facing the snap-fitting locator 300. The tapered connecting rod has a larger outer diameter at the end near the snap-fitting locator 300, allowing the connecting boss 231 thereon to be larger, providing greater structural strength and more stable connection and support to the snap-fitting locator 300.

[0050] In summary, the present application provides a multifunctional occlusal positioning device, which, during the process of performing a three-dimensional scan of a patient's oral cavity, scans and transfers information on the stable occlusal relationship of the patient's upper and lower jaws by installing a scanning rod on the patient's edentulous position and an occlusal positioning piece installed on the scanning rod. Not only can information such as the degree of inclination and implant depth of the implant in the patient's mouth be transferred, but the normal occlusal state of the edentulous position in the patient's oral cavity after the implant is installed is also simulated, thereby obtaining more comprehensive three-dimensional scan data and ensuring that the three-dimensional data scanned of the patient's upper and lower jaws are more accurate. The occlusal relationship of the subsequently manufactured physical dental model is more stable, which facilitates the subsequent manufacture of dental implants and allows implant doctors to better perform surgical planning and preoperative design.

[0051] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A multifunctional occlusal positioning device, characterized in that: include: A scanning rod, which is used to be installed on the patient's edentulous position; An occlusal positioning member, the occlusal positioning member being arranged at one end of the scanning rod, and the end of the occlusal positioning member facing away from the scanning rod having an occlusal matching surface; The outer contour of the occlusal matching surface is used to match the occlusal surface of the opposing tooth on the side opposite to the missing tooth position.

2. The multifunctional occlusal positioning device according to claim 1, characterized in that: The occlusal positioning member includes: an occlusal platform body, the occlusal matching surface is located on the surface of the occlusal platform body away from the scanning rod; A docking portion is provided at one end of the occlusal platform body away from the occlusal matching surface and is used for connecting the scanning rod.

3. The multifunctional occlusal positioning device according to claim 2, characterized in that: The occlusal platform body comprises: a hard supporting portion, the docking portion being arranged on an end surface of the hard supporting portion; The occlusal shaping portion is arranged at one end of the hard supporting portion away from the scanning rod, and forms the occlusal matching surface through the occlusion of the patient's opposing teeth.

4. The multifunctional occlusal positioning device according to claim 2, wherein: The occlusal platform body includes a manual shaping portion, and the docking portion is provided at one end of the manual shaping portion; The surface of the other end of the manual shaping part is repaired by an external instrument to form the occlusal matching surface.

5. The multifunctional occlusal positioning device according to claim 2, characterized in that: The outer diameter of the occlusal platform gradually increases in a direction away from the scanning rod.

6. The multifunctional occlusal positioning device according to any one of claims 2 to 5, characterized in that: The scanning rod comprises: a rod body, one end of which is provided with an inner connecting portion, and the rod body is installed on the patient's missing tooth position through the inner connecting portion; An external connecting portion is provided at one end of the rod body away from the internal connecting portion and is used for connecting to the docking portion.

7. The multifunctional occlusal positioning device according to claim 6, characterized in that: The docking portion includes: a docking groove, which is provided on the end surface of the occlusal platform facing the scanning rod; The external connection portion includes a connection boss, which is detachably embedded in the docking groove.

8. The multifunctional occlusal positioning device according to claim 7, characterized in that: The connecting boss is a polygonal boss, and the docking groove is adapted to be arranged to match the connecting boss.

9. The multifunctional occlusal positioning device according to claim 7, wherein: An exhaust hole is provided on the bite fitting surface, and the exhaust hole is connected to the docking groove.

10. The multifunctional occlusal positioning device according to claim 6, wherein: One end of the rod body facing the occlusal positioning member is configured to be tapered.

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