Simple replaceable denture abutment

Abstract

The utility model relates to the technical field of dental implant, in particular to a simple and replaceable denture abutment which comprises a gum implanting screw rod, a fixing bolt and an abutment body, the fixing bolt is in threaded connection to the gum implanting screw rod, a mounting notch allowing the fixing bolt to penetrate through is formed in the abutment body, and the cross section of the mounting notch is in a step shape. The abutment is tightly pressed on the gum planting screw rod by the fixing bolt, and a fixing piece is arranged on the abutment and is used for fixing a false tooth on the abutment. The artificial tooth has the effect that the artificial tooth is convenient to maintain and replace.

Description

Technical Field

[0001] This application relates to the field of dental implant technology, and in particular to a simple replaceable denture abutment. Background Technology

[0002] Dental implants are a method of restoring missing teeth by using a substructure implanted into the bone tissue to support and retain the superstructure (also called a prosthesis). They typically consist of two parts: a substructure (the dental implant wire) and a superstructure (the dental prosthesis). The dental implant wire, made of artificial materials, is surgically implanted into the bone tissue to achieve firm retention and support. It is then connected to the superstructure using specialized devices and methods. Dental implants can achieve restorative results very similar to natural teeth in terms of function, structure, and aesthetics, and have become the preferred restorative method for an increasing number of patients with missing teeth.

[0003] Chinese patent CN114601581A discloses a dental implant, including a crown, an abutment, and a dental implant screw. The abutment is located inside the lower end of the crown, and the lower end of the abutment has a conical blind hole. The upper end of the dental implant screw has a cone, and the conical blind hole is located on the cone.

[0004] In the above-mentioned technology, the crown is glued to the abutment. Therefore, when the crown is damaged, the usual solution is to use a special tool to break the crown in the patient's mouth, remove the glue from the abutment, and then glue a new crown to the abutment. However, this can easily cause glue to flow into the patient's mouth, causing discomfort, which is a drawback. Utility Model Content

[0005] To address the inconvenience of replacing damaged dental crowns, this application provides a simple, replaceable denture abutment.

[0006] The simple replaceable denture abutment provided in this application adopts the following technical solution:

[0007] A simple replaceable denture abutment includes an implant screw, a fixing bolt, and an abutment. The fixing bolt is threaded onto the implant screw. The abutment has a mounting slot through which the fixing bolt passes. The mounting slot has a stepped cross-section. The fixing bolt presses the abutment onto the implant screw. A fixing element is provided on the abutment for fixing the denture onto the abutment.

[0008] By adopting the above technical solution, the doctor fixes the denture to the abutment with fasteners. When the patient's denture is damaged, the doctor removes the abutment by loosening the fixing bolts, and then replaces or repairs the denture with the abutment detached. During this process, the glue used to bond the denture cannot flow into the patient's mouth, thereby reducing the impact of denture repair on the patient.

[0009] Optionally, the base has multiple machining slots that communicate with the mounting slot between its inner and outer walls. The fastener includes multiple spring pieces disposed at the machining slots of the base. Each spring piece corresponds to one of the machining slots. The multiple spring pieces are evenly distributed circumferentially around the axis of the fixing bolt. Each spring piece has a protrusion. The denture has a mounting hole through which the fixing bolt passes. The base is inserted into the mounting hole of the denture. The mounting hole has multiple slots that correspond to the protrusions. The fixing bolt presses the protrusions on the spring pieces into the slots.

[0010] By employing the above-mentioned technical solution, the dentist sequentially passes the fixing bolts through the mounting holes on the denture and the mounting slots on the abutment. As the fixing bolts pass through the mounting slots on the abutment, they press the protrusions on the spring clips against the denture's slots, thus fixing the denture to the abutment. Then, the abutment is fixed to the dental implant rod in the patient's mouth by tightening the fixing bolts. Finally, the dentist seals the mounting holes on the denture with the same material as the denture, thus completing the dental implant procedure. In this process, mechanical fixation is used instead of glue fixation, which helps reduce discomfort in the patient's mouth.

[0011] Optionally, the abutment is provided with an insertion tube, and the dental implant screw has a slot for inserting the insertion tube. The cross-section of both the insertion tube and the slot is polygonal, and the fixing bolt passes through the insertion tube coaxially.

[0012] By adopting the above technical solution, it is convenient for doctors to fix the abutment to the dental implant screw, while reducing the occurrence of the abutment shifting or detaching from the dental implant screw when the doctor tightens the fixing bolt.

[0013] Optionally, the diameter of the dental implant screw gradually decreases along the direction from the abutment to the dental implant screw.

[0014] By adopting the above technical solution, it is easier for doctors to implant dental implant rods into the patient's jawbone, which helps to improve the stability of the dental implant rod fixation.

[0015] Optionally, the dental implant screw has multiple cutting grooves, which are evenly distributed circumferentially along the axis of the dental implant screw.

[0016] By adopting the above technical solution, the cutting groove on the dental implant rod can collect bone fragments from the patient's gums, utilize the patient's bone fragments to support early osseointegration, reduce bone fragment loss, accelerate the patient's bone healing speed, and the healed bone at the cutting groove will prevent the dental implant rod from rotating, which is beneficial to improving the stability of the dental implant rod.

[0017] Optionally, the base has multiple fixing slots that communicate with the mounting slot between its inner and outer walls. The fixing member includes multiple spring pins disposed at the fixing slots of the base, each spring pin corresponding to a fixing slot. Each spring pin has a protrusion. The denture has an assembly slot for insertion into the base. The side wall of the assembly slot of the denture has multiple positioning slots for engaging the protrusion, each positioning slot corresponding to a protrusion.

[0018] By adopting the above technical solution, after the dentist fixes the abutment to the dental implant screw in the patient's mouth by tightening the fixing bolts, the dentist puts the denture with the machined mounting and positioning slots onto the abutment. During this process, the spring pin will undergo elastic deformation until the protrusion on the spring pin is locked in the positioning slot on the denture, thus quickly completing the dental implant process. If the patient's denture is damaged, the dentist only needs to use tools to break the denture in the patient's mouth and reinstall a denture. The process is simple and convenient.

[0019] Optionally, the assembly slot of the denture is provided with multiple guide slots, which correspond one-to-one with and are connected to the positioning slots. The guide slots are used to slide and abut against the protrusions.

[0020] By adopting the above technical solution, during the process of the denture being fitted onto the abutment, the protrusion on the spring pin will abut against and slide against the guide groove on the denture. During this process, the spring pin will deform until the protrusion on the spring pin is stuck in the positioning groove on the denture. The guide groove plays a guiding role in positioning the protrusion.

[0021] Optionally, a sealing ring is provided between the abutment and the denture, the sealing ring being used to seal the guide groove.

[0022] By adopting the above technical solution, after the denture is installed on the abutment, the sealing ring will seal the gap between the abutment and the denture as well as the guide groove, thereby reducing the entry of bacteria and other substances from the patient's mouth into the installation groove inside the abutment, which helps to improve the hygiene of the internal environment of the abutment.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The dentist fixes the denture to the abutment using fasteners. When the patient's denture is damaged, the dentist removes the abutment by loosening the fastening bolts and then replaces or repairs the denture with the abutment detached. During this process, the adhesive used to bond the denture cannot flow into the patient's mouth, thus reducing the impact of denture repair on the patient.

[0025] 2. The dentist inserts the fixing bolts sequentially through the mounting holes on the denture and the mounting slots on the abutment. As the fixing bolts pass through the mounting slots on the abutment, they press the protrusions on the spring clips against the denture's slots, thus fixing the denture to the abutment. Then, the abutment is fixed to the dental implant rod in the patient's mouth by tightening the fixing bolts. Finally, the dentist seals the mounting holes on the denture with the same material as the denture, thus completing the dental implant procedure. In this process, mechanical fixation is used instead of glue fixation, which helps reduce discomfort in the patient's mouth.

[0026] 3. After the dentist fixes the abutment to the implant screw in the patient's mouth by tightening the fixing bolts, the dentist places the denture with the machined mounting and positioning slots onto the abutment. During this process, the spring pin will undergo elastic deformation until the protrusion on the spring pin gets stuck in the positioning slot on the denture, thus quickly completing the dental implant process. If the patient's denture is damaged, the dentist only needs to use tools to break the denture in the patient's mouth and then install a new denture. The process is simple and convenient. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0028] Figure 2 This is an exploded view of Embodiment 1 of this application.

[0029] Figure 3 This is a cross-sectional view showing the positional relationship between the dental implant screw, fixing bolt, and spring in Embodiment 1 of this application.

[0030] Figure 4 This is a cross-sectional view showing the positional relationship between the spring pin, the protrusion, and the sealing ring in Embodiment 2 of this application.

[0031] Explanation of reference numerals in the attached diagram: 0. Denture; 1. Dental implant screw; 2. Fixing bolt; 3. Abutment; 4. Mounting slot; 5. Fixing element; 51. Spring; 52. Protrusion; 53. Mounting hole; 54. Slot; 55. Spring pin; 56. Protrusion; 57. Assembly slot; 58. Positioning slot; 6. Machining slot; 7. Insertion tube; 8. Slot; 9. Cutting groove; 10. Fixing slot; 11. Guide groove; 12. Sealing ring. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0033] This application discloses a simple replaceable denture abutment.

[0034] Example 1

[0035] Reference Figure 1 , Figure 2 and Figure 3 A simple replaceable denture abutment includes a dental implant screw 1, a fixing bolt 2, and an abutment 3. The fixing bolt 2 is threaded onto the dental implant screw 1. The dental implant screw 1 has threads on its outer side. The abutment 3 has an installation slot 4 for the fixing bolt 2 to pass through. The cross-section of the installation slot 4 is stepped. The fixing bolt 2 presses the abutment 3 onto the dental implant screw 1.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The abutment 3 has an integrally formed insertion tube 7. The dental implant screw 1 has a slot 8 for inserting the insertion tube 7. The cross-section of both the insertion tube 7 and the slot 8 is polygonal. The fixing bolt 2 passes through the insertion tube 7 coaxially. The diameter of the dental implant screw 1 gradually decreases along the direction from the abutment 3 to the dental implant screw 1. Multiple cutting grooves 9 are formed on the outer thread of the dental implant screw 1. The multiple cutting grooves 9 are evenly distributed circumferentially along the axis of the dental implant screw 1.

[0037] The doctor first surgically implants the dental implant rod 1 into the patient's alveolar bone tissue, and then fixes the abutment 3 to the dental implant rod 1 in the patient's mouth by tightening the fixing bolt 2.

[0038] Reference Figure 1 , Figure 2 and Figure 3 A fixing member 5 is arranged on the base 3. The fixing member 5 is used to fix the denture 0 on the base 3. Multiple processing slots 6 are opened between the inner and outer walls of the base 3, all of which are connected to the mounting slots 4. The fixing member 5 includes multiple spring pieces 51 welded to the processing slots 6 of the base 3. The spring pieces 51 are made of elastic material. The spring pieces 51 correspond one-to-one with the processing slots 6. The multiple spring pieces 51 are evenly distributed around the axis of the fixing bolt 2.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The spring 51 has an integrally formed protrusion 52, and the denture 0 has an installation hole 53 for the fixing bolt 2 to pass through. The base 3 is inserted into the installation hole 53 of the denture 0. Multiple slots 54 are provided on the inner side wall of the installation hole 53. The slots 54 correspond one-to-one with the protrusion 52. The fixing bolt 2 presses the protrusion 52 on the spring 51 into the slot 54.

[0040] Before the doctor tightens the fixing bolt 2, the denture 0 is placed on the abutment 3 in the detached state. Then, the fixing bolt 2 is inserted through the mounting hole 53 on the denture 0. As the fixing bolt 2 passes through the mounting slot 4 on the abutment 3, the fixing bolt 2 presses the protrusion 52 on the spring piece 51 against the slot 54 of the denture 0, thereby fixing the denture 0 to the abutment 3.

[0041] Next, the cannula 7 on the abutment 3 is inserted into the slot 8 on the dental implant screw 1, and then the fixing bolt 2 is tightened to fix the abutment 3 on the dental implant screw 1 in the patient's mouth. The dental implant screw 1 is finely adjusted to adjust the state of the denture 0. Finally, the doctor uses the same material as the denture 0 to seal the mounting hole 53 on the denture 0 and perform curing treatment, thus completing the process of implanting a tooth for the patient.

[0042] The implementation principle of Example 1 is as follows: The doctor first implants the dental implant rod 1 into the patient's alveolar bone tissue through surgery, and then fixes the abutment 3 to the dental implant rod 1 in the patient's mouth by tightening the fixing bolt 2.

[0043] Before the doctor tightens the fixing bolt 2, the denture 0 is placed on the abutment 3 in the detached state. Then, the fixing bolt 2 is inserted through the mounting hole 53 on the denture 0. As the fixing bolt 2 passes through the mounting slot 4 on the abutment 3, the fixing bolt 2 presses the protrusion 52 on the spring piece 51 against the slot 54 of the denture 0, thereby fixing the denture 0 to the abutment 3.

[0044] Next, the cannula 7 on the abutment 3 is inserted into the slot 8 on the dental implant screw 1, and then the fixing bolt 2 is tightened to fix the abutment 3 on the dental implant screw 1 in the patient's mouth. The dental implant screw 1 is finely adjusted to adjust the state of the denture 0. Finally, the doctor uses the same material as the denture 0 to seal the mounting hole 53 on the denture 0 and perform curing treatment, thus completing the process of implanting a tooth for the patient.

[0045] Example 2

[0046] refer to Figure 4 The difference between this embodiment and embodiment 1 is that: multiple fixing slots 10, which are all connected to the mounting slots 4, are provided between the inner and outer walls of the base 3. The fixing member 5 includes multiple spring pins 55 welded to the fixing slots 10 of the base 3. The spring pins 55 correspond one-to-one with the fixing slots 10. The spring pins 55 have protrusions 56 integrally formed on them. The denture 0 has an assembly slot 57 for the base 3 to be inserted into.

[0047] Reference Figure 4The assembly slot 57 of the denture 0 has multiple positioning slots 58 on its side wall for the protrusions 56 to engage. The positioning slots 58 correspond one-to-one with the protrusions 56. The assembly slot 57 of the denture 0 has multiple guide slots 11, which correspond one-to-one with the positioning slots 58 and are connected. The guide slots 11 are used to slide and abut against the protrusions 56. A sealing ring 12 is arranged between the base 3 and the denture 0. The sealing ring 12 is used to seal the guide slots 11.

[0048] The implementation principle of Example 2 is as follows: After the doctor fixes the abutment 3 to the dental implant screw 1 with the fixing bolt 2, the doctor puts the denture 0 with the assembly slot 57, positioning slot 58 and guide slot 11 processed on the abutment 3. During this process, the protrusion 56 on the spring pin 55 will abut against the guide slot 11 on the denture 0 and slide. The spring pin 55 will undergo elastic deformation until the protrusion 56 on the spring pin 55 is stuck on the positioning slot 58 on the denture 0.

[0049] Afterwards, the pin will recover its deformation, and the restorative elastic force of the pin 55 will press the protrusion 56 on it onto the positioning groove 58 on the denture 0. The sealing ring 12 achieves a seal between the abutment 3 and the denture 0, thus completing the rapid dental implantation process. Afterwards, when the patient's denture 0 is damaged, the doctor only needs to use a special tool to break the remaining denture 0 in the patient's mouth and then re-fit a denture 0.

[0050] 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 simple replaceable denture abutment, characterized in that: The device includes a dental implant screw (1), a fixing bolt (2), and an abutment (3). The fixing bolt (2) is threaded onto the dental implant screw (1). The abutment (3) has an installation slot (4) through which the fixing bolt (2) passes. The cross-section of the installation slot (4) is stepped. The fixing bolt (2) presses the abutment (3) onto the dental implant screw (1). The abutment (3) is provided with a fixing member (5) for fixing the denture (0) onto the abutment (3).

2. The simple replaceable denture abutment according to claim 1, characterized in that: The base (3) has multiple machining slots (6) that are connected to the mounting slot (4) between its inner and outer walls. The fastener (5) includes multiple spring pieces (51) located at the machining slots (6) of the base (3). Each spring piece (51) corresponds to a machining slot (6). The multiple spring pieces (51) are evenly distributed around the axis of the fixing bolt (2). Each spring piece (51) has a protrusion (52). The denture (0) has a mounting hole (53) through which the fixing bolt (2) passes. The base (3) is inserted into the mounting hole (53) of the denture (0). Each mounting hole (53) has multiple slots (54). Each slot (54) corresponds to a protrusion (52). The fixing bolt (2) presses the protrusion (52) on the spring piece (51) into the slot (54).

3. The simple replaceable denture abutment according to claim 1, characterized in that: The abutment (3) is provided with a cannula (7), and the dental implant screw (1) is provided with a slot (8) for inserting the cannula (7). The cross-sections of the cannula (7) and the slot (8) are both polygonal, and the fixing bolt (2) passes through the cannula (7) coaxially.

4. The simple replaceable denture abutment according to claim 1, characterized in that: The diameter of the dental implant screw (1) gradually decreases along the direction from the abutment (3) to the dental implant screw (1).

5. The simple replaceable denture abutment according to claim 4, characterized in that: The dental implant screw (1) is provided with multiple cutting grooves (9), which are evenly distributed circumferentially along the axis of the dental implant screw (1).

6. The simple replaceable denture abutment according to claim 1, characterized in that: The base (3) has multiple fixing slots (10) that are connected to the mounting slot (4) between its inner and outer walls. The fixing member (5) includes multiple spring pins (55) disposed at the fixing slots (10) of the base (3). Each spring pin (55) corresponds to a fixing slot (10). Each spring pin (55) has a protrusion (56). The denture (0) has an assembly slot (57) for the base (3) to be inserted into. The side wall of the assembly slot (57) of the denture (0) has multiple positioning slots (58) for the protrusion (56) to be engaged. Each positioning slot (58) corresponds to a protrusion (56).

7. The simple replaceable denture abutment according to claim 6, characterized in that: The assembly slot (57) of the denture (0) is provided with a plurality of guide slots (11), which correspond one-to-one with the positioning slot (58) and are connected. The guide slots (11) are used to slide and abut against the protrusion (56).

8. The simple replaceable denture abutment according to claim 7, characterized in that: A sealing ring (12) is provided between the abutment (3) and the denture (0), and the sealing ring (12) is used to seal the guide groove (11).

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