Dental spherical attachment negative part replacing device

Abstract

The utility model discloses a dental spherical attachment negative part replacing device which comprises a connecting rod, a threaded operating handle is arranged at one end of the connecting rod, a ball head is arranged at the top end of the threaded operating handle, the diameter of the ball head is 0.1-0.2 mm larger than the inner diameter of a spherical cap of a dental spherical attachment negative part, and the connecting rod is connected with the connecting rod. The ball head and the threaded operating handle are in smooth transition through an arc chamfer, the ball head and the threaded operating handle are made of stainless steel materials, the surface roughness of the ball head is Ra0.4-Ra0.6 micrometers, and the length of the threaded operating handle is 3-4 cm. The spherical cap is reasonable in structural design, due to the design of the ball head structure, possible damage to the internal structure of the spherical cap when the spherical cap is replaced is avoided, the spherical cap can be rapidly and accurately placed in the clamping groove, needing to be replaced, of the spherical attachment female part, the retention force of the spherical cap is better guaranteed, the replacement time is greatly shortened, and time and labor are saved.

Description

Technical Field

[0001] This utility model belongs to the field of dental instrument technology, and in particular relates to a device for replacing the female part of a dental spherical attachment. Background Technology

[0002] Dental spherical attachments are precision accessories used in dental restorations, consisting of a spherical male component and a mating female component. The spherical cap of the female component is a crucial part of the female component. In the entire attachment system, the spherical cap of the female component fits tightly with the male component (spherical), located on the tissue surface of the denture base, interacting with the male component on the abutment tooth to play a critical retention role. When replacing a spherical cap that has lost its elasticity or is severely worn, dentists or dental technicians must place the replacement cap within the female component's clasp. Due to the small size of the spherical cap, misplacement is easily caused when using tweezers or other tools, which can also damage the internal structure of the cap. Inaccurate placement affects the retention force of the spherical cap, resulting in wasted time and materials. Utility Model Content

[0003] To address the above problems, this utility model provides a device for replacing the female part of a dental spherical attachment.

[0004] This utility model is implemented as follows: A replacement device for a dental spherical attachment female component includes a connecting rod. One end of the connecting rod is provided with a threaded operating handle, and the top end of the threaded operating handle is provided with a ball head. The ball head fits closely with the spherical cap attachment female component, allowing for transfer using the replacement device, thus ensuring accuracy and achieving a perfect effect. The threaded operating handle increases the friction between the hand and the handle, preventing slippage and facilitating use. The diameter of the ball head is 0.1-0.2 mm larger than the inner diameter of the spherical cap of the dental spherical attachment female component. The inner diameter of the spherical cap of the dental spherical attachment female component is 1.6 mm, and the diameter of the ball head is 1.7- The diameter of the ball head at the connection point with the threaded operating handle is 0.5-0.6 times the diameter of the ball head, and it is smoothly transitioned by a rounded chamfer with a radius of 0.2-0.3mm. The diameter of the ball head is slightly larger than the inner diameter of the spherical cap, which facilitates the fixing of the ball head and the spherical cap during operation. After the spherical cap is placed into the groove of the female part of the spherical attachment, the ball head is slid out of the spherical cap, and the spherical cap is installed in the groove. The ball head has a smooth structure design that does not damage the spherical cap. The diameter of the ball head at the connection point with the threaded operating handle is 0.5-0.6 times the diameter of the ball head, and it is smoothly transitioned by a rounded chamfer with a radius of 0.2-0.3mm, which facilitates the removal of the ball head after the spherical cap is installed. The ball head and threaded operating handle are made of stainless steel. The surface roughness of the ball head is Ra0.4-Ra0.6μm, which is moderate. When the surface roughness is less than Ra0.4μm, the surface is too smooth, which may cause the ball cap to slip easily when it is engaged with the ball head, which is not conducive to precise operation. When the surface roughness is greater than Ra0.6μm, the ball head may be difficult to remove from the ball groove. The length of the threaded operating handle is 3-4cm, which is moderate and convenient for hand grip. The surface roughness is Ra0.6-Ra0.8μm, which avoids hand slippage and does not feel rough, so as not to cause damage to the skin of the hand. The outer surface of the threaded operating handle has a 1-1.5mm rounded chamfer to improve the comfort of grip.

[0005] The connecting rod is 6-8cm long, which is a suitable length for easy operation.

[0006] The end of the connecting rod away from the ball head is also equipped with a denture carving tool. The denture carving tool is convenient for dental technicians to use. The denture carving tool can carve anatomical structures on the model, so that the produced denture is closer to the shape and function of natural teeth.

[0007] The connecting rod is equipped with a threaded operating handle at the part where it connects to the denture cutting tool. When using the denture cutting tool, the dental technician can hold it at the threaded operating handle for easy use.

[0008] The replacement device has a total length of 15-20cm and integrates the functions of a denture carving knife and a ball head, making it convenient to use.

[0009] The beneficial effects of this utility model are: the structure of this utility model is reasonably designed. The design of the ball head structure not only avoids damage to the internal structure of the ball cap when the female part of the ball cap attachment is replaced, but also allows the ball cap to be quickly and accurately placed into the groove to be replaced, further ensuring its retention force, greatly shortening the replacement time, achieving the best effect, and saving time and effort. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the replacement device structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the ball end structure of the replacement device of this utility model;

[0012] Figure 3 This is a schematic diagram of the replacement device of this utility model in use;

[0013] In the diagram: 1-Spherical attachment female component, 2-Card slot, 3-Spherical cap, 4-Replacement device, 401-Ball head, 402-Threaded operating handle, 403-Connecting rod, 404-Cut knife. Detailed Implementation

[0014] To better understand the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, further illustrates this utility model.

[0015] like Figure 1-3 The illustrated device is a replacement device for the female part of a dental spherical attachment, such as... Figure 1 As shown, the device includes a connecting rod 403, with threaded operating handles 402 at both ends. One end of the threaded operating handle 402 has a ball head 401 at its tip, and the other end of the threaded operating handle 402, away from the ball head 401, has a denture carving tool 404. The diameter of the ball head 401 is 0.1-0.2 mm larger than the inner diameter of the spherical cap 3 of the dental spherical attachment female component. In this embodiment, the inner diameter of the spherical cap of the dental spherical attachment female component is 1.6 mm, and the diameter of the ball head is 1.7-1.8 mm. Figure 2As shown, the diameter of the connection between the ball head 401 and the threaded operating handle 402 (here, a circular cross-section) is 0.5-0.6 times the diameter of the ball head, approximately 0.85-1.1 mm, and is smoothly transitioned by a chamfer with a radius of 0.2-0.3 mm. The ball head 401 and the threaded operating handle 402 are made of stainless steel. The surface roughness of the ball head 401 is Ra0.4 - Ra0.6 μm, which is moderate. The outer diameter of the sphere is slightly larger than the inner diameter of the spherical cap 3. During operation, the replacement device 4 is held, and the ball head 401 is inserted into the spherical cap 3 that needs replacement due to loss of elasticity or wear. The spherical cap 3 is then removed, and the ball head 401 is taken out together with the spherical cap 3. After the new spherical cap 3 is fitted onto the ball head 401, it is inserted into the slot 2 of the dental spherical attachment female component 1. Figure 3 As shown, by rotating the replacement device 4 appropriately, the spherical cap 3 is stuck in the slot 2. Because the ball head 401 has a rounded chamfer transition at the connection with the threaded operating handle, the ball head 401 is not difficult to remove from the spherical cap 3. Of course, the force and technique required to pry out the ball head 3 that has lost its elasticity or is worn out of the slot and to place the ball head 3 into the slot 2 and turn it is slightly different. When the surface roughness of the ball head 401 is Ra0.4 - Ra0.6μm, dental technicians can complete the task with a little training. If it is difficult to pry out the ball head 3 that has lost its elasticity or is worn out of the slot, tweezers can be used to carefully remove the ball head from the slot (at this time, the ball head is no longer used after being removed, and even if it is damaged, it will not affect the use). The threaded operating handle is 3-4cm long, a moderate length for easy hand grip. The surface roughness of the threaded operating handle is Ra0.6 - Ra0.8μm, an appropriate roughness that prevents slippage while maintaining a comfortable feel and avoiding any damage to the skin. The outer edge of the threaded operating handle has a 1-1.5mm rounded chamfer, further improving grip comfort. The connecting rod is 6-8cm long, and the total length of the replacement device is 15-20cm, a moderate length integrating the functions of a carving knife and a ball end for ease of use.

[0016] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A device for replacing the female part of a dental spherical attachment, comprising a connecting rod, characterized in that, The connecting rod has a threaded operating handle at one end, and a ball head at the top of the threaded operating handle. The diameter of the ball head is 0.1-0.2 mm larger than the inner diameter of the spherical cap of the dental spherical attachment female component. The diameter at the connection between the ball head and the threaded operating handle is 0.5-0.6 times the diameter of the ball head, and it is smoothly transitioned by a rounded chamfer with a radius of 0.2-0.3 mm. The ball head and the threaded operating handle are made of stainless steel. The surface roughness of the ball head is Ra0.4-Ra0.6 μm. The length of the threaded operating handle is 3-4 cm, and the surface roughness is Ra0.6-Ra0.8 μm. The outer surface of the threaded operating handle has a rounded chamfer of 1-1.5 mm.

2. The dental spherical attachment female component replacement device according to claim 1, characterized in that, The inner diameter of the spherical cap of the negative part of the dental spherical attachment is 1.6 mm, and the diameter of the ball head is 1.7-1.8 mm.

3. The dental spherical attachment female component replacement device according to claim 1, characterized in that, The length of the connecting rod is 6-8cm.

4. The dental spherical attachment female component replacement device according to claim 1, characterized in that, The end of the connecting rod furthest from the ball head is also equipped with a dental engraving tool.

5. A dental spherical attachment female component replacement device according to claim 4, characterized in that, The part of the connecting rod that connects to the dental prosthesis carving knife is provided with a threaded operating handle.

6. A dental spherical attachment female component replacement device according to claim 4, characterized in that, The total length of the replacement device is 15-20cm.

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