Segmented pre-assembled denture system and positioning method based on dental arch curvature

Abstract

This application relates to a segmented pre-assembled denture system and positioning method based on the curvature of the dental arch, belonging to the field of complete denture processing technology. It includes a denture, an arc-shaped segment, a base, and a denture abutment. The curvature of the arc-shaped segment is consistent with the curvature of the dental arch. The arc-shaped segment is elongated, hollow, and open at both ends. An entry notch is provided on the elongated surface of the arc-shaped segment, through which the denture enters the arc-shaped segment. A first fixing member is provided on the arc-shaped segment to fix the denture to the arc-shaped segment. The curvature of the base is consistent with the curvature of the dental arch, and the base is used to mount the denture on the arc-shaped segment. The base is also mounted on the denture abutment, and a second fixing member is provided on the denture abutment to fix the base. This application has the effect of improving the quality and efficiency of denture installation.

Description

Technical Field

[0001] This application relates to the field of complete denture processing technology, and in particular to a segmented pre-assembled denture system and positioning method based on arch curvature. Background Technology

[0002] Resin teeth are artificial teeth made primarily of methyl methacrylate. They closely resemble natural teeth in color and shape, have moderate hardness and are resistant to fracture, and have a high degree of adhesion to the denture base. Traditionally, resin teeth are arranged one by one onto the denture base. During installation, the resin teeth are fixed to the denture base using resin adhesive, resulting in relatively low installation efficiency.

[0003] Therefore, in order to improve the installation efficiency of resin teeth, a digital integrated denture manufacturing method has been proposed, which is a production method that integrates the manufacturing of teeth (artificial teeth) and denture bases through digital technology. The method involves obtaining the patient's dental data through oral scanning, using computer-aided design (CAD) software to design the tooth morphology and denture base structure in an integrated manner, and then realizing the processing through numerical control cutting (CAM).

[0004] However, the gaps and tooth shape of teeth produced by CNC machining and denture integration do not meet the ideal standards. Summary of the Invention

[0005] To improve the quality and efficiency of denture installation, this application provides a segmented pre-assembled denture system and positioning method based on the arch curvature.

[0006] Firstly, the segmented pre-assembled denture system based on the arch curvature provided in this application adopts the following technical solution:

[0007] A segmented pre-fitted denture system based on the curvature of the dental arch includes dentures, arc-shaped segments, bases, and denture abutments. The dentures are arranged in rows and pre-fixed. The curvature of the arc-shaped segments is consistent with the curvature of the dental arch. The arc-shaped segments are elongated and hollow with openings at both ends. An entry notch is provided on the elongated surface of the arc-shaped segments, through which the dentures enter the arc-shaped segments. A first fixing member is provided on the arc-shaped segments to fix the dentures to the arc-shaped segments. The curvature of the base is consistent with the curvature of the dental arch and is used to install the dentures on the arc-shaped segments. The base is also used to mount the dentures on the denture abutments. A second fixing member is provided on the denture abutments to fix the bases.

[0008] Optionally, the first fixing member includes a fixing airbag disposed within the arc-shaped segment. Two fixing airbags are disposed along the length of the arc-shaped segment. The fixing airbags are respectively located on both sides of the entry gap. The fixing airbags are inflated and span the entry gap. The denture passes through the entry gap and is clamped between the fixing airbags. The end of the denture abuts against the inner wall of the arc-shaped segment directly opposite the entry gap.

[0009] Optionally, the chewing end of the denture abuts against the inner wall of the arc-shaped segment through an entry notch, and the implant end of the denture is located on the outer side of the arc-shaped segment.

[0010] Optionally, the inner wall of the arc-shaped segment where the chewing end of the denture abuts is recessed and formed with an installation groove. After the chewing end of the denture enters the arc-shaped segment, it is inserted into the installation groove. Rubber pads are provided on both side walls of the arc-shaped segment and located in the installation groove. The chewing end of the denture is engaged between the two rubber pads.

[0011] Optionally, the top surface of the base is provided with a fixing groove for fixing the denture. The arc-shaped segment carries the implant end of the denture into the fixing groove. The bottom wall of the arc-shaped segment is placed on the top surface of the base. After the implant end of the denture enters the fixing groove, resin adhesive is filled into the fixing groove to fix the denture.

[0012] Optionally, the arc segment includes a first arc segment and a second arc segment. The second arc segment has two sections located on both sides of the first arc segment. The first arc segment is used to install incisors, and the second arc segment is used to install molars. The arc segment also includes a connector for fixing the first arc segment and the second arc segment together.

[0013] Optionally, the connector includes a connecting rod disposed on the connecting surface of the second arc segment, a connecting groove for inserting the connecting rod is provided on the connecting surface of the first arc segment, a rubber ring is sleeved on the connecting rod, and a snap-fit ​​groove for snapping the rubber ring is provided on the first arc segment and located on the inner wall of the connecting groove.

[0014] Optionally, the second fixing member includes a receiving groove formed on the dental base, the receiving groove being pre-filled with resin adhesive. After the base enters the receiving groove, the resin adhesive is pressed down to fill the base and the inner wall of the receiving groove with resin adhesive, thereby fixing the base in the receiving groove. It also includes a lateral fixing member, which is used to fix the base to the position after crimping.

[0015] Optionally, the lateral fixing member includes a fixing rod slidably disposed on the side wall of the base, the sliding direction of the fixing rod being perpendicular to the side wall of the receiving groove, the side wall of the receiving groove having an insertion groove for the fixing rod to be inserted into; the base having a sliding groove for the fixing rod to slide in, the tail of the fixing rod having a sealing gasket, the peripheral wall of the sealing gasket abutting against the inner wall of the sliding groove, the bottom of the base having a liquid inlet channel, the liquid inlet channel communicating with the sliding groove and the communicating end being located behind the sealing gasket, the liquid inlet channel being used for the base to press down the resin adhesive, when a portion of the resin adhesive is pushed through the liquid inlet channel and the sliding groove to push the fixing plate to slide, thereby causing the fixing rod to be inserted into the insertion groove.

[0016] Secondly, this application provides a segmented pre-assembled denture positioning method based on the curvature of the dental arch, adopting the following technical solution:

[0017] Optionally, the segmented pre-assembled denture positioning method based on arch curvature, using a segmented pre-assembled denture system based on arch curvature, also includes;

[0018] S1: The arc segment and base are made based on the patient's dental arch data, and the dental base is made based on the patient's oral cavity data. Receiving slots are made on the dental base according to the obtained dental arch curvature.

[0019] S2: The finished resin teeth are respectively snapped into the first arc segment and the second arc segment, and the chewing end of the resin teeth is put into the mounting groove and clamped in the rubber pad. The fixing airbag is inflated to fix the resin teeth.

[0020] S3: Connect the first arc segment and the second arc segment. Place the connected first arc segment and the second arc segment on the base and adjust the direction of the first arc segment and the second arc segment to match the curvature of the fixing groove on the base. Then inject the resin adhesive into the fixing groove.

[0021] S4: After the implant end of the resin tooth is fixed on the base, the first and second arc segments are removed to expose the chewing end of the resin tooth. The base is then placed in the receiving groove, and then the base is pressed down to make the base fully enter the receiving groove. During the pressing down of the base, the resin adhesive pushes the fixing plate to slide through the liquid inlet channel and the slide groove, thereby driving the fixing rod to be inserted into the insertion groove, thus preventing the base from floating in the receiving groove.

[0022] In summary, this application includes at least the following beneficial technical effects:

[0023] When fabricating complete dentures, the patient's dental arch data is first obtained to create the arc segment and base. The denture base is then made based on the patient's oral cavity data. The denture is then placed in the arc segment through an inlet and fixed in the arc segment using the first fastener, thus completing the denture arrangement. During this process, the angle and position of the denture are adjusted to make the gaps between teeth and the shape of the teeth as close as possible to the actual situation of the patient's oral cavity, thereby improving the denture installation effect.

[0024] The denture on the curved segment is fixed to the base, the base is then installed on the dental abutment, and the base is fixed to the dental abutment by the second fastener, thus completing the denture installation. Compared with the installation of a single denture, the installation efficiency of the denture is improved.

[0025] Compared to installing artificial teeth individually on dental abutments, individual artificial teeth are prone to deflection when installed individually, leading to a decrease in installation accuracy. When artificial teeth are assembled in a row and then installed on dental abutments, the possibility of artificial teeth deflection or twisting is reduced, thereby improving the installation accuracy of artificial teeth. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the segmented pre-assembled denture system based on the arch curvature according to an embodiment of this application;

[0027] Figure 2 This is an exploded schematic diagram of the arc segment, base, and denture base in a segmented pre-assembled denture system based on the arch curvature of this application embodiment;

[0028] Figure 3 This is a schematic diagram of the structure of the denture and the arc segment in the segmented pre-assembled denture system based on the arch curvature of the present application embodiment;

[0029] Figure 4 This is an exploded view of the denture and the arc segment in the segmented pre-assembled denture system based on the arch curvature of the present application embodiment;

[0030] Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle;

[0031] Figure 6 This is a schematic diagram of the connector structure in the segmented pre-assembled denture system based on the arch curvature according to an embodiment of this application;

[0032] Figure 7 This is a schematic diagram of the structure of the second fixation component in the segmented pre-assembled denture system based on the arch curvature according to an embodiment of this application;

[0033] Figure 8 This is a schematic diagram of the groove and liquid inlet channel in a segmented pre-assembled denture system based on the arch curvature according to an embodiment of this application.

[0034] Explanation of reference numerals in the attached diagram: 1. Denture; 2. Arc-shaped segment; 21. First arc-shaped segment; 22. Second arc-shaped segment; 3. Base; 4. Dental abutment; 5. Entry notch;

[0035] 6. First fixing component; 61. Fixing airbag; 62.

[0036] 7. Second fixing component; 71. Receiving groove; 72. Fixing rod; 73. Insertion groove; 74. Slide groove; 75. Liquid inlet channel;

[0037] 8. Chewing end; 9. Implant end; 10. Installation groove; 11. Rubber pad; 12. Fixing groove; 13. Incisor; 14. Molar; 15. Connecting rod; 16. Connecting groove; 17. Rubber ring. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 This application will be described in further detail.

[0039] This application discloses a segmented pre-assembled denture system based on the curvature of the dental arch. (Refer to...) Figures 1-3 The segmented pre-assembled denture system based on the arch curvature includes denture 1, arc segment 2, base 3 and denture base 4. Denture 1 is arranged in rows and pre-fixed. For example, during the denture fabrication process, 4-6 dentures are used as a group. During the fabrication process, the pre-made artificial teeth are arranged in the arc of the arch curvature, connected and fixed together, thereby improving the production efficiency of the denture in the later stage.

[0040] The curvature of the arc segment 2 is consistent with the curvature of the dental arch. The arc segment 2 is slender and elongated. The arc segment 2 is hollow and has openings at both ends. An entry notch 5 is opened on any elongated surface of the arc segment 2. The denture 1 enters the arc segment 2 through the entry notch 5. A first fixing member 6 is provided on the arc segment 2. The first fixing member 6 is used to fix the denture 1 to the arc segment 2. The curvature of the base 3 is consistent with the curvature of the dental arch. The base 3 is used to install the denture 1 on the arc segment 2. The base 3 is used to install on the dental abutment 4. A second fixing member 7 is provided on the dental abutment 4 to fix the base 3.

[0041] When fabricating a complete denture 1, the patient's dental arch data is first obtained to fabricate an arc segment 2 and a base 3. The patient's oral cavity data is then used to fabricate a dental abutment 4. The denture 1 is then placed inside the arc segment 2 through an entry notch 5 and fixed inside the arc segment 2 by a first fixing member 6, thus completing the arrangement of the denture 1. The denture 1 on the arc segment 2 is then fixed onto the base 3, and the base 3 is then installed onto the dental abutment 4. The base 3 is then fixed onto the dental abutment 4 by a second fixing member 7, thus completing the installation of the denture 1. Compared with the installation of a single denture 1, the installation efficiency of the denture 1 is improved.

[0042] Reference Figure 4 and Figure 5 In this embodiment, because the denture 1 is irregularly shaped, the contact surface between the conventional fixation method and the denture 1 is point contact, resulting in a relatively poor fixation effect of the denture 1 and easy scratches on the surface of the denture 1. Therefore, the first fixing member 6 includes a fixing airbag 61 disposed in the arc segment 2. The fixing airbag 61 is fixedly disposed on the inner wall of the arc segment 2. There are two fixing airbags 61 disposed along the length direction of the arc segment 2. The fixing airbags 61 are respectively located on both sides of the entry gap 5. The fixing airbags 61 are inflated and span the entry gap 5. The denture 1 passes through the entry gap 5 and is clamped between the fixing airbags 61. The end of the denture 1 abuts against the inner wall of the arc segment 2 directly opposite the entry gap 5.

[0043] When denture 1 is installed on arc-shaped segment 2, the fixing airbag 61 is inflated to a fully expanded state. Then, denture 1 is moved into arc-shaped segment 2 through the entry notch 5, and the fixing airbag 61 is squeezed to deform the fixing airbag 61 and form a groove to accommodate denture 1, thereby fixing denture 1 in arc-shaped segment 2. The operation is simple and convenient. At the same time, after denture 1 is inserted into arc-shaped segment 2, the direction of denture 1 can be rotated appropriately to adapt the arrangement direction of denture 1 to the patient's oral cavity, further improving the installation effect of denture 1.

[0044] Reference Figure 3 and Figure 4 In this embodiment, the chewing end 8 of the denture 1 abuts against the inner wall of the arc-shaped segment 2 through the entry notch 5, and the implant end 9 of the denture 1 is located on the outer side of the arc-shaped segment 2. The chewing end 8 of the denture 1 abuts against the bottom wall of the inner cavity of the arc-shaped segment 2, which facilitates the subsequent fixation of the implant end 9 onto the dental base 4, thereby completing the implantation of the denture 1. At the same time, the chewing end 8 abuts against the bottom wall of the inner cavity of the arc-shaped segment 2, so that all the chewing ends 8 of the denture 1 are located on the same plane, which facilitates the cutting and chewing of food by the denture 1, and at the same time reduces oral discomfort for the patient. When a tooth is too high or too low, it is easy for the patient's denture 1 to get stuck with food, making it difficult to chew, difficult to clean later, and causing oral discomfort.

[0045] Reference Figure 4 and Figure 5 To further improve the stability of the denture 1 on the arc-shaped segment 2 and facilitate the arrangement of the denture 1, the inner wall of the arc-shaped segment 2, where the chewing end 8 of the denture 1 abuts, is recessed with a mounting groove 10. After the chewing end 8 of the denture 1 enters the arc-shaped segment 2, it is inserted into the mounting groove 10. Rubber pads 11 are provided on both side walls of the arc-shaped segment 2 and located in the mounting groove 10. The chewing end 8 of the denture 1 is engaged between the two rubber pads 11. After the denture 1 enters the arc-shaped segment 2, it is engaged in the rubber pads 11 by fixing the airbag 61, which provides secondary fixation for the denture 1 and improves the fixation effect of the denture 1. At the same time, the multi-point positioning of the denture 1 reduces the possibility of the denture 1 shaking on the arc-shaped segment 2, thereby ensuring the arrangement direction and curvature of the denture 1.

[0046] Reference Figure 2 To facilitate the fixation of the denture 1 to the base 3, a fixing groove 12 for fixing the denture 1 is provided on the top surface of the base 3. The arc-shaped segment 2 carries the implant end 9 of the denture 1 into the fixing groove 12. The bottom wall of the arc-shaped segment 2 is placed on the top surface of the base 3. After the implant end 9 of the denture 1 enters the fixing groove 12, resin adhesive is filled into the fixing groove 12 to fix the denture 1. After the arc-shaped segment 2 is placed on the base 3, the arc-shaped segment 2 is supported by the base 3. Resin adhesive is injected into the fixing groove 12. After the resin adhesive solidifies, the denture 1 is fixed on the base 3. The operation is simple and convenient.

[0047] Reference Figure 4 and Figure 6Because the size and shape of the denture 1 vary greatly, it is difficult for the access notch 5 to fit all dentures 1. Therefore, in this embodiment, the arc segment 2 includes a first arc segment 21 and a second arc segment 22. The second arc segment 22 is provided with two sections and is located on both sides of the first arc segment 21. The first arc segment 21 is used to install the incisors 13, and the second arc segment 22 is used to install the molars 14. After the incisors 13 and molars 14 are respectively installed on the first arc segment 21 and the second arc segment 22, it is convenient to install and fix the denture 1, and it is convenient to install the denture 1 on the base 3.

[0048] Reference Figure 4 and Figure 6 If the dentures 1 on the first arc segment 21 and the second arc segment 22 are fixed separately to the base 3, it is easy to cause misalignment of the first arc segment 21 and the second arc segment 22, resulting in a large difference between the curvature of the denture 1 and the curvature of the dental arch. Therefore, in this embodiment, the arc segment 2 also includes a connector for fixing the first arc segment 21 and the second arc segment 22. The connector includes a connecting rod 15 disposed on the connecting surface of the second arc segment 22. The connecting surface of the first arc segment 21 is provided with a connecting groove 16 for the connecting rod 15 to be inserted. A rubber ring 17 is sleeved on the connecting rod 15. A snap-fit ​​groove for the rubber ring 17 to be snapped is provided on the first arc segment 21 and located on the inner wall of the connecting groove 16. When the denture 1 is installed, the first arc segment 21 and the second arc segment 22 are connected to fix all the dentures 1 on the base 3 according to the designed curvature, thereby improving the installation effect of the denture 1.

[0049] Reference Figure 4 and Figure 6 Furthermore, multiple connecting rods 15 are provided and are parallel to each other to improve the stability after the first arc segment 21 and the second arc segment 22 are connected. At the same time, relative rotation between the first arc segment 21 and the second arc segment 22 is avoided.

[0050] Reference Figure 7 and Figure 8 In this embodiment, the second fixing member 7 includes a receiving groove 71 formed on the dental base 4. The receiving groove 71 is pre-filled with resin adhesive. After the base 3 enters the receiving groove 71, the resin adhesive is pressed down to fill the base 3 and the inner wall of the receiving groove 71, thereby fixing the base 3 in the receiving groove 71. After the denture 1 is installed on the base 3, the resin adhesive is filled into the receiving groove 71. Then the base 3 is moved into the receiving groove 71 and the base 3 is pressed down again. The base 3 squeezes the resin adhesive, so that the resin adhesive surrounds the side wall of the base 3 to fix the base 3 on the dental base 4. The operation is simple and convenient. At the same time, the resin adhesive surrounds the side wall and bottom wall of the base 3, which improves the fixation effect of the base 3 and the dental base 4.

[0051] Reference Figure 7 and Figure 8When the base 3 is pressed into the receiving groove 71, the resin adhesive applies buoyancy and lifting force to the base 3, which can easily cause the base 3 to float up from the receiving groove 71. This results in a generally poor fixation effect of the base 3 and a decrease in the fit between the base 3 and the dental abutment 4. Therefore, in this embodiment, a lateral fixing member is also included. The lateral fixing member is used to fix the base 3 to the position after pressing. The lateral fixing member includes a fixing rod 72 slidably disposed on the side wall of the base 3. The sliding direction of the fixing rod 72 is perpendicular to the side wall of the receiving groove 71. The base 3 has an insertion slot 73 for inserting the fixing rod 72; the base 3 has a sliding groove 74 for sliding the fixing rod 72; the tail of the fixing rod 72 is provided with a sealing gasket, the periphery of the sealing gasket abuts against the inner wall of the sliding groove 74; the bottom of the base 3 has a liquid inlet channel 75, which is connected to the sliding groove 74 and the connecting end is located behind the sealing gasket; when the base 3 presses down the resin adhesive, part of the resin adhesive pushes the fixing plate to slide through the liquid inlet channel 75 and the sliding groove 74, thereby driving the fixing rod 72 to be inserted into the insertion slot 73.

[0052] The resin adhesive enters the inlet channel 75 and then into the slide groove 74. The resin adhesive pushes the sealing gasket and the fixing rod 72 to move, causing the fixing rod 72 to enter the insertion groove 73, thereby fixing the base 3 onto the dental abutment 4. This avoids the possibility of the base 3 being lifted when the resin adhesive solidifies, thus improving the fixing effect of the base 3. At the same time, after the resin adhesive has solidified, the resin adhesive in the inlet channel 75 and the slide groove 74 forms an L-shape to lock the base 3 onto the dental abutment 4, further improving the fixing effect of the base 3.

[0053] The implementation principle of the segmented pre-assembled denture system based on the arch curvature in this application embodiment is as follows:

[0054] When fabricating a complete denture 1, the patient's dental arch data is first obtained to fabricate the arc-shaped segment 2 and the base 3. The dental abutment 4 is fabricated based on the patient's oral cavity data. The denture 1 is then placed into the arc-shaped segment 2 through the entry notch 5. When the denture 1 enters the arc-shaped segment 2, the fixation bladder 61 is inflated to a fully expanded state. The denture 1 is then moved into the arc-shaped segment 2 through the entry notch 5, and the fixation bladder 61 is squeezed to deform it and form a groove to accommodate the denture 1, thereby fixing the denture 1 into the arc-shaped segment 2.

[0055] After the chewing end 8 of the denture 1 enters the arc-shaped section 2, it is inserted into the mounting groove 10. Rubber pads 11 are provided on both side walls of the arc-shaped section 2 and the mounting groove 10. The chewing end 8 of the denture 1 is engaged between the two rubber pads 11, thus completing the arrangement of the denture 1. Then, the denture 1 on the arc-shaped section 2 is fixed on the base 3, resin adhesive is injected, and then the base 3 is installed on the dental abutment 4. During the process of the base 3 entering the receiving groove 71, the resin adhesive enters the liquid inlet channel 75 and enters the sliding groove 74. The resin adhesive pushes the sealing pad and the fixing rod 72 to move, so that the fixing rod 72 enters the insertion groove 73, thus fixing the base 3 on the dental abutment 4.

[0056] This application discloses a segmented pre-assembled denture positioning method based on arch curvature, using a segmented pre-assembled denture system based on arch curvature, and further includes;

[0057] S1: The arc segment 2 and the base 3 are made based on the patient's dental arch data, and the dental base 4 is made based on the patient's oral cavity data. The receiving groove 71 is opened on the dental base 4 according to the obtained dental arch curvature.

[0058] S2: The finished resin teeth are respectively snapped into the first arc segment 21 and the second arc segment 22, and the chewing end 8 of the resin teeth is put into the mounting groove 10 and clamped in the rubber pad 11. The fixing airbag 61 is inflated to fix the resin teeth.

[0059] S3: Connect the first arc segment 21 and the second arc segment 22. After connecting, place the first arc segment 21 and the second arc segment 22 on the base 3 and adjust the direction of the first arc segment 21 and the second arc segment 22 to be consistent with the curvature of the fixing groove 12 on the base 3. Then inject the resin adhesive into the fixing groove 12.

[0060] S4: After the implant end 9 of the resin tooth is fixed on the base 3, the first arc segment 21 and the second arc segment 22 are removed to expose the chewing end 8 of the resin tooth. Then, the base 3 is placed in the receiving groove 71, and then the base 3 is pressed down to make the base 3 completely enter the receiving groove 71. During the pressing down of the base 3, the resin adhesive pushes the fixing plate to slide through the liquid inlet channel 75 and the slide groove 74, thereby driving the fixing rod 72 to be inserted into the insertion groove 73, thus preventing the base 3 from floating in the receiving groove 71.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A segmented pre-assembled denture system based on the curvature of the dental arch, characterized in that: The device includes a denture (1), an arc-shaped segment (2), a base (3), and a denture base (4). The dentures (1) are arranged in rows and pre-fixed. The curvature of the arc-shaped segment (2) is consistent with the curvature of the dental arch. The arc-shaped segment (2) is elongated and hollow with openings at both ends. An entry notch (5) is provided on the elongated surface of the arc-shaped segment (2). The denture (1) enters the arc-shaped segment (2) through the entry notch (5). The chewing end (8) of the denture (1) abuts against the arc-shaped segment (2) through the entry notch (5). 2) The inner wall of the denture (1) is located on the outer side of the arc segment (2); a first fixing member (6) is provided on the arc segment (2), the first fixing member (6) is used to fix the denture (1) to the arc segment (2), the curvature of the base (3) is consistent with the curvature of the dental arch, the base (3) is used to install the denture (1) on the arc segment (2), the base (3) is used to install on the dental base (4), and a second fixing member (7) is provided on the dental base (4) for fixing the base (3); The arc segment (2) includes a first arc segment (21) and a second arc segment (22). The second arc segment (22) has two sections located on both sides of the first arc segment (21). The first arc segment (21) is used to install incisors (13), and the second arc segment (22) is used to install molars (14). The arc segment (2) also includes a connector for fixing the first arc segment (21) and the second arc segment (22).

2. The segmented pre-assembled denture system based on arch curvature according to claim 1, characterized in that: The first fixing member (6) includes a fixing airbag (61) disposed in the arc segment (2). There are two fixing airbags (61) disposed along the length direction of the arc segment (2). The fixing airbags (61) are respectively located on both sides of the entry gap (5). The fixing airbags (61) are in an inflated state and span the entry gap (5). The denture (1) passes through the entry gap (5) and is clamped between the fixing airbags (61). The end of the denture (1) abuts against the inner wall of the arc segment (2) directly opposite the entry gap (5).

3. The segmented pre-assembled denture system based on arch curvature according to claim 2, characterized in that: The inner wall of the arc-shaped segment (2) where the chewing end (8) of the denture (1) abuts is recessed and has a mounting groove (10). After the chewing end (8) of the denture (1) enters the arc-shaped segment (2), it is inserted into the mounting groove (10). Rubber pads (11) are provided on both side walls of the arc-shaped segment (2) and located in the mounting groove (10). The chewing end (8) of the denture (1) is engaged between the two rubber pads (11).

4. The segmented pre-assembled denture system based on arch curvature according to claim 3, characterized in that: The base (3) has a fixing groove (12) for fixing the denture (1) on its top surface. The arc segment (2) carries the implant end (9) of the denture (1) into the fixing groove (12). The bottom wall of the arc segment (2) is placed on the top surface of the base (3). After the implant end (9) of the denture (1) enters the fixing groove (12), resin adhesive is filled into the fixing groove (12) to fix the denture (1).

5. The segmented pre-assembled denture system based on arch curvature according to claim 4, characterized in that: The connector includes a connecting rod (15) disposed on the connecting surface of the second arc segment (22), and a connecting groove (16) for inserting the connecting rod (15) is provided on the connecting surface of the first arc segment (21). A rubber ring (17) is sleeved on the connecting rod (15), and a snap-fit ​​groove for snapping the rubber ring (17) is provided on the first arc segment (21) and located on the inner wall of the connecting groove (16).

6. The segmented pre-assembled denture system based on arch curvature according to claim 5, characterized in that: The second fixing member (7) includes a receiving groove (71) opened on the dental base (4), and a resin adhesive is pre-filled in the receiving groove (71). After the base (3) enters the receiving groove (71), the resin adhesive is pressed down to fill the base (3) and the inner wall of the receiving groove (71) with the resin adhesive, thereby fixing the base (3) in the receiving groove (71). It also includes a lateral fixing member, which is used to fix the base (3) to the position after crimping.

7. The segmented pre-assembled denture system based on arch curvature according to claim 6, characterized in that: The lateral fixing component includes a fixing rod (72) slidably disposed on the side wall of the base (3). The sliding direction of the fixing rod (72) is perpendicular to the side wall of the receiving groove (71). The side wall of the receiving groove (71) is provided with an insertion groove (73) for the fixing rod (72) to be inserted. The base (3) is provided with a sliding groove (74) for the fixing rod (72) to slide. The tail of the fixing rod (72) is provided with a sealing gasket. The peripheral wall of the sealing gasket abuts against the inner wall of the sliding groove (74). The bottom of the base (3) is provided with a liquid inlet channel (75). The liquid inlet channel (75) is connected to the sliding groove (74) and the connecting end is located behind the sealing gasket. When the base (3) presses down the resin adhesive, part of the resin adhesive pushes the fixing plate to slide through the liquid inlet channel (75) and the sliding groove (74), thereby driving the fixing rod (72) to be inserted into the insertion groove (73).

8. A segmented pre-assembled denture positioning method based on arch curvature, characterized in that: The segmented pre-assembled denture system based on arch curvature as described in claim 7 further includes: S1: The arc segment (2) and base (3) are made based on the patient's dental arch data, and the dental base (4) is made based on the patient's oral cavity data. A receiving groove (71) is opened on the dental base (4) according to the obtained dental arch curvature. S2: The finished resin teeth are respectively snapped into the first arc segment (21) and the second arc segment (22), and the chewing end (8) of the resin teeth is put into the mounting groove (10) and clamped in the rubber pad (11), and the fixing airbag (61) is inflated to fix the resin teeth. S3: Connect the first arc segment (21) and the second arc segment (22). After connecting, the first arc segment (21) and the second arc segment (22) are placed on the base (3). Adjust the direction of the first arc segment (21) and the second arc segment (22) to be consistent with the curvature of the fixing groove (12) on the base (3). Then inject the resin adhesive into the fixing groove (12). S4: After the implant end (9) of the resin tooth is fixed on the base (3), the first arc segment (21) and the second arc segment (22) are removed to expose the chewing end (8) of the resin tooth. Then the base (3) is placed in the receiving groove (71). Then the base (3) is pressed down so that the base (3) is completely inserted into the receiving groove (71). During the pressing down of the base (3), the resin adhesive pushes the fixing plate to slide through the liquid inlet channel (75) and the slide groove (74) and drives the fixing rod (72) to be inserted into the insertion groove (73) to avoid the base (3) from floating in the receiving groove (71).

Images