Digital occlusal conversion device

Abstract

The present utility model provides a digital occlusal conversion device, comprising: an upper tray, provided with at least four brackets, a threaded fixing hole being formed in the center of the brackets; a lower tray, located below the upper tray; an occlusal plane plate, a joint recess being formed in one surface of the occlusal plane plate, and relief zigzag edges being formed on two sides of the occlusal plane plate; and a center screw, provided with a spherical joint and a rotary thread. The other surface of the occlusal plane plate is connected to the surface of the lower tray facing the upper tray. The spherical joint is arranged in the joint recess. The rotary thread is screwed in the threaded fixing hole. The bearing joint design is used for the center screw and the occlusal plane plate. Such design allows flexible occlusal movement in the mouth, so that the upper tray and the lower tray can be mutually engaged by means of the occlusal plane plate, thereby achieving an occlusal relation between the joint and the muscle in a harmonious state.

Description

Digital articulation conversion device Technical Field

[0001] The utility model relates to an occlusal device used for teeth, in particular to a device which can accurately record the occlusal direction and three-dimensional position of the upper and lower jaws of the teeth and convert the recorded positions into digital information. Background Art

[0002] The key to denture fabrication in conventional technology is understanding the patient's occlusal relationship and habits. However, the traditional bite wax record has a drawback: the physician obtains a model of the patient's oral condition and then sends it to a dental technician to create a personalized denture tray and bite wax. In cases of complete edentulism or a limited number of teeth, a dental technician creates a base plate, onto which the bite wax is affixed. Consequently, the vertical height of the bite is determined by the dental technician's experience, and there is no way to adjust the bite height freely within the patient's mouth. Therefore, the accuracy of the upper and lower jaw heights depends on the dental technician's experience. However, because the dental technician has never actually seen the patient, the resulting bite wax can be too high or too low, or even misaligned. Consequently, the physician must repeatedly adjust the bite wax created by the dental technician in the clinic, which is time-consuming and labor-intensive.

[0003] Despite the increasing sophistication of 3D digital modeling and 3D printing technologies, their application in dentistry remains limited. This is primarily due to the inability of traditional methods to accurately transfer the patient's oral conditions to modeling software for subsequent prosthesis design. Furthermore, computers are unable to calculate the patient's occlusal height and occlusal relationship, making digital full-mouth reconstruction impractical. The physician still needs to provide accurate occlusal records to the computer for subsequent digital dental treatment. However, there is currently no device globally that can record digital occlusal records and adjust occlusal height and angle within the mouth, making it impossible to customize precise individual trays using 3D digital modeling.

[0004] Utility Model Content

[0005] Based on the above-mentioned purpose, the present invention provides a digital occlusal conversion device, which includes: an upper dental tray, having at least four brackets, each of which has a threaded fixing hole in the center; a lower dental tray, located below the upper dental tray; an occlusal plane plate, one surface of which has a protruding block, the upper surface of which has a joint groove in the center, and concave and convex serrated edges on both sides; and a central screw, having a ball joint and a rotating thread; wherein the other surface of the occlusal plane plate is fitted with a surface of the lower dental tray facing the upper dental tray; wherein the ball joint is placed in the joint groove, and the rotating thread is screwed into the threaded fixing hole; wherein one side of the protruding block has a fixing bolt hole, and the fixing bolt hole is for a bolt to be inserted and locked, so that the occlusal plane plate and the lower dental tray are fitted and fixed.

[0006] This new digital occlusal adjustment device allows for intraoral adjustment of occlusal height. Its screw-type design allows for increased or decreased occlusal height as needed. The joint groove and fixed bolt design allow for seamless engagement of the two surfaces, allowing patients to freely adjust their occlusal position. Once a stable position is achieved, a bite recorder can be used to accurately record the three-dimensional relationship between the upper and lower jaws. This significantly reduces the need for subsequent clinical adjustments.

[0007] The central screw and the occlusal plane plate are designed as bearing joints, which can freely perform occlusal movement in the patient's mouth, so that the upper and lower dental trays are closely fitted with each other through the occlusal plane plate to achieve an occlusal relationship in a state of harmony between joints and muscles. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG1 is a perspective exploded schematic diagram of an embodiment of the present invention.

[0009] FIG2 is a schematic diagram of an assembly of an embodiment of the present invention.

[0010] Description of reference numerals:

[0011] 10: Upper dental tray

[0012] 101: Bracket

[0013] 11: Threaded fixing hole

[0014] 20: Lower dental tray

[0015] 22: Groove

[0016] 221: Spherical protrusion structure

[0017] 23: Notch

[0018] 231: Protruding column

[0019] 30: Occlusal plane plate

[0020] 31: Raised block

[0021] 32: Joint groove

[0022] 33: serrated edge

[0023] 34: Fixing bolt hole

[0024] 341: fixing bolt

[0025] 40: Central screw

[0026] 41: Ball joint

[0027] 42: Rotating thread DETAILED DESCRIPTION

[0028] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0029] Please refer to FIG. 1 and FIG. 2 , which show a digital occlusal conversion device, comprising an upper dental tray 10 , a lower dental tray 20 , an occlusal plane plate 30 and a central screw 40 .

[0030] The upper dental tray 10 has at least four brackets 101, each having a threaded fixing hole 11 at its center. The lower dental tray 20 is located below the upper dental tray 10. The thickness of the upper and lower dental trays 10, 20 ranges from 3.5 mm to 5 mm. In this embodiment, the upper dental tray 10 has four brackets 101, and the thickness of both the upper and lower dental trays 10, 20 is 4 mm.

[0031] The occlusal plane plate 30 has a protruding block 31 on one surface thereof and concave-convex toothed edges 33 on both sides thereof. The other surface of the occlusal plane plate 30 is in contact with a surface of the lower dental tray 20 facing the upper dental tray 10 .

[0032] A joint groove 32 is provided in the center of the raised block 31. The occlusal plane plate 30 has a length ranging from 48 mm to 55 mm and a width ranging from 35 mm to 42 mm. In this embodiment, the occlusal plane plate 30 has a length of 50.15 mm and a width of 38.93 mm.

[0033] The central screw 40 has a ball joint 41 and a rotating thread 42. The ball joint 41 is located at one end of the central screw 40 and is spherical. The length of the central screw 40 ranges from 17 mm to 22 mm, and the diameter of the ball joint 41 ranges from 5 mm to 8 mm. In this embodiment, the central screw 40 is 19.98 mm long, and the ball joint 41 has a diameter of 7 mm.

[0034] The rotating thread 42 of the central screw 40 passes through the threaded fixing hole 11 of the upper dental tray 10, so that the central screw 40 is locked and fixed with the threaded fixing hole 11. The joint groove 32 is a circular groove with the same diameter as the ball joint 41. The ball joint 41 is placed in the joint groove 32. The joint groove 32 cooperates with the ball of the ball joint 41, so that the ball joint 41 can be rotated and adjusted to any angle within the joint groove 32. After the occlusal height and occlusal plane angle are determined, a fixing bolt hole 34 is provided on the back of the joint groove 32 on the occlusal plane plate 30 for the insertion of a fixing bolt 341 to lock and fix the angle of the occlusal plane plate 30.

[0035] When a physician needs to create a model of a patient's oral condition, the novel digital occlusal converter is first placed in the patient's mouth. The patient then bites the digital occlusal converter with their upper and lower jaws, securing its horizontal plane. The physician then adjusts the height of the digital occlusal converter by rotating the thread 42 of the central screw 40 in the patient's mouth. The physician then tightens the thread 42 of the central screw 40 into the threaded fixing hole 11 in the center of the upper dental tray 10 to maintain a fixed height. Once the height adjustment is complete, the patient bites down, allowing the occlusal plane 30 to freely move and fit snugly against the upper half of the lower dental tray 20. Once the angle and height are determined, the fixing bolt 341 on the back of the occlusal plane 30 is tightened into the fixing bolt hole 34 to secure the occlusal angle of the occlusal plane 30.

[0036] The present invention can lock the rotating thread 42 of the central screw 40 into the threaded fixing hole 11 in the center of the upper dental tray 10, thereby fixing the height plane. The angle of the ball joint 41 within the joint groove 32 is then rotated. Because the ball joint 41 and the joint groove 32 are circular, they can cooperate with each other to achieve various rotation angles. The physician can freely rotate and adjust the angles according to the corresponding angles of the patient's upper and lower jaws, so that the new digital occlusal conversion device fully fits the patient's upper and lower jaw occlusal height and angle and is fixed. In this way, the relative movement of the central screw 40 and the occlusal plane plate 30 allows the upper and lower dental trays 10 and 20 to be tightly fitted together through the occlusal plane plate 30.

[0037] After the new digital occlusal conversion device is fixed in the oral cavity, a silicone material can be injected between the upper tray 10 and the occlusal plane plate 30. The silicone material is allowed to flow into the space between the upper tray 10 and the occlusal plane plate 30 and the silicone material is allowed to harden and form. The three-dimensional spatial relationship between the occlusal plane plate 30 and the lower tray 20 of the upper tray 10 is obtained, thereby recording the angle between the patient's occlusal space and the occlusal plane plate 30. Because the occlusal plane plate 30 has concave and convex serrated edges 33 on both sides, the silicone impression can be more firmly positioned after forming. The lower tray 20 is provided with a plurality of grooves 22 on the left and right sides of the surface facing the upper tray 10, and a spherical protrusion structure 221 is provided in the middle of each of the grooves 22. The lower tray 20 is also provided with a recess 23 at the front end of the surface facing the upper tray 10, and at least one protruding column 231 is provided on each side of the recess 23. The design of the grooves 22 and spherical protrusions 221 on both sides of the dental tray and the protrusion column 231 in the front recess 23 can ensure that the silicone material is firmly positioned after injection, and these concave and convex blocks can be used to record the fixed position of the silicone material.

[0038] The new digital occlusal converter is then removed from the patient's mouth, and a digital model of the device after positioning is obtained using 3D scanning technology. This model is then imported into digital modeling software, allowing the angles, thickness, and height of the upper and lower jaw models to be adjusted to the patient's most natural occlusal position, recreating a digital model that closely resembles the patient's inter-jaw relationship. Furthermore, by injecting silicone material, which hardens and mates with the grooves 22 on both sides of the mouthpiece and the protruding cylinder 231 at the front, the various components of the digital occlusal converter can be repeatedly assembled without changing the recorded height and angle of the mouthpiece. This allows for rapid reproduction of the initially set occlusal height and angle, saving significant time in the subsequent production of replicas and remodeling.

[0039] This new digital occlusal conversion device can precisely adjust the horizontal and vertical height of the occlusion in the patient's mouth according to the actual situation. It also utilizes the freely rotatable angle of the ball joint 41 to precisely adjust the direction and three-dimensional positional relationship of the upper and lower jaw occlusal angles, and converts the recorded position into key digital information for denture production. Once all positions of the device are fixed, the device can be removed for 3D scanning, digital modeling, and 3D printing technology to create a customized, personalized dental tray, which is convenient for subsequent treatment. Furthermore, the space between the upper dental tray 10 and the occlusal plane plate 30 allows the device's positioning to be recorded, facilitating future reassembly of the customized occlusal device. Dentures produced in this way better fit the patient's oral conditions, improving patient satisfaction.

[0040] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present utility model. Therefore, based on the innovative concept of the present utility model, changes and modifications to the embodiments described herein, or equivalent structural or process transformations made using the contents of the present utility model specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of protection of the present utility model patent.

Claims

1. A digital articulation conversion device, comprising: An upper dental tray having at least four brackets, each bracket having a threaded fixing hole in the center; a lower dental tray located below the upper dental tray; An occlusal plane plate, one surface of which has a protruding block, the upper surface of which has a joint groove in the center, and two sides of which have concave and convex toothed edges; and a central screw having a ball joint and a rotating thread; in, The other surface of the occlusal plane plate is in contact with a surface of the lower dental tray facing the upper dental tray; Wherein, the ball joint is placed in the joint groove, and the rotating thread is screwed into the threaded fixing hole; A fixing bolt hole is provided on one side of the protruding block, and a bolt is inserted into the fixing bolt hole to lock the occlusal plane plate and the lower dental tray so as to fit and fix the occlusal plane plate and the lower dental tray.

2. The digital articulation conversion device as described in claim 1, wherein the ball joint is located at one end of the central screw and is in the shape of a sphere.

3. The digital articulation conversion device as described in claim 2, wherein the joint groove is a circular groove with the same diameter as the ball joint.

4. The digital occlusal conversion device as described in claim 1, wherein a silicone material is provided between the upper mouthpiece and the occlusal plane plate.

5. The digital occlusal conversion device as claimed in claim 1 or 4, wherein the lower dental tray is provided with a plurality of grooves on the left and right sides of the surface facing the upper dental tray, and a spherical protrusion structure is provided in the middle of each of the grooves.

6. The digital articulation conversion device as claimed in claim 1 or 4, wherein the lower dental tray has a recess at the front end of the surface facing the upper dental tray, and at least one protruding column is provided on each side of the recess.

7. The digital occlusal conversion device as claimed in claim 2, wherein the occlusal plane plate has a length ranging from 48 mm to 55 mm and a width ranging from 35 mm to 42 mm.

8. The digital articulation conversion device as claimed in claim 1, wherein the length of the central screw ranges from 17 mm to 22 mm.

9. The digital articulation conversion device as claimed in claim 1, wherein the diameter of the ball joint ranges from 5 mm to 8 mm.

10. The digital articulation conversion device as claimed in claim 1, wherein the thickness of the upper and lower dental trays ranges from 3.5 mm to 5 mm.

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