Tooth-free jaw intraoral scanning rod

Abstract

The utility model is applicable to the technical field of grinding machines, and provides an edentulous jaw intraoral scanning rod which comprises a scanning rod body, the appearance structure of the scanning rod body is in an arc-shaped design conforming to the shape of a dental arch, a plurality of notches are formed in the scanning rod body, and the notches serve as feature mark points to be matched with oral scanning data. The scanning rod body is connected with a fixing column used for penetrating through gum, a through hole is formed in the fixing column, a connecting hole communicated with the through hole is formed in the scanning rod body, and a screw penetrating through the through hole is connected in the connecting hole; the scanning rod body is designed to be of an arc-shaped structure according with the shape of a dental arch and can be matched with oral scanning points at different positions, oral scanning data can be more easily spliced, the oral scanning data are matched through the notches serving as feature mark points, deformation of oral scanning data splicing can be avoided, the position of an implant can be more accurately obtained, and the dental implant can be more accurately positioned. The whole planting and repairing process is accelerated.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding machines, and in particular relates to an intraoral scanning rod for edentulous jaws. Background Art

[0002] The traditional method of taking impressions of edentulous jaws requires a combination of intraoral and extraoral methods. The process is cumbersome and it is difficult to accurately obtain the position of the implant. It is easy to cause deformation of the oral scan data when scanning the edentulous jaw. Therefore, it takes a lot of time to restore the true position of the implant, which is time-consuming and labor-intensive and also affects the patient experience. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provides an edentulous intraoral scanning rod.

[0004] The utility model is implemented as follows: an edentulous intraoral scanning rod comprises a scanning rod body, the outer structure of the scanning rod body is an arc-shaped design that conforms to the shape of the dental arch, a plurality of notches are provided on the scanning rod body, and the plurality of notches are used as characteristic marking points to match the oral scanning data, the scanning rod body is connected with a fixing column for gingival penetration, a through hole is provided in the fixing column, the scanning rod body is provided with a connecting hole communicated with the through hole, and a screw passing through the through hole is connected in the connecting hole.

[0005] Furthermore, the notch is arranged on the upper end surface of the scanning rod body, or on the connection between the upper end surface of the scanning rod body and its side end surface.

[0006] Furthermore, after the screw passes through the connecting hole and the through hole in sequence, the upper end surface of the screw is flush with the upper end surface of the scanning rod body.

[0007] Furthermore, a limiting portion protruding toward the inside of the through hole is provided at one end of the through hole close to the connecting hole. After the screw rod portion of the screw passes through the connecting hole and the through hole in sequence, the head of the screw abuts against the limiting portion. At this time, the upper end surface of the screw is flush with the upper end surface of the scanning rod body.

[0008] Furthermore, the through hole is designed to be trumpet-shaped.

[0009] Furthermore, the scanning rod body and the fixing column are both integrally formed of titanium alloy.

[0010] The utility model provides an edentulous intraoral scanning rod, in which the scanning rod body is designed as an arc-shaped structure in accordance with the shape of the dental arch, can adapt to each oral scanning point in different positions, and is more convenient to splice the oral scanning data. A plurality of slots are used as characteristic marking points to match the oral scanning data, which can avoid deformation of the splicing of the oral scanning data, can more accurately obtain the position of the implant, and speed up the entire implant restoration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0013] Figure 1 The utility model provides a structural schematic diagram.

[0014] Figure 2 It is a schematic diagram of the appearance of the scanning rod body provided by the utility model.

[0015] Figure 3 It is a cross-sectional schematic diagram of the utility model after the hidden screws are provided.

[0016] Description of the accompanying drawings: 1. Scanning rod body; 11. Connecting hole; 2. Notch; 3. Fixing column; 31. Through hole; 32. Limiting part; 4. Screw. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] See also Figure 1-Figure 3 , is a utility model disclosed in the art, which is an edentulous intraoral scanning rod, comprising a scanning rod body 1, wherein the outer shape of the scanning rod body 1 is an arc-shaped design conforming to the shape of the dental arch of the human oral cavity, such as Figure 2As shown, when scanning the oral scan data, since the position of each oral scan point is different, the scanning rod body 1 with an arc-shaped design can adapt to each oral scan point, making it easier to splice the oral scan data later. The scanning rod body 1 is provided with a plurality of slots 2, and the plurality of slots 2 are used as feature mark points to match the oral scan data. The slots 2 are provided on the upper end surface of the scanning rod body 1, or at the connection between the upper end surface of the scanning rod body 1 and its side end surface, which can facilitate the scanning to identify the feature mark points, improve the scanning precision and accuracy, and restore the real position of the implant to the greatest extent.

[0019] The scanning rod body 1 is connected to a fixing column 3, and the fixing column is used to penetrate the gums and assemble with the mandibular implant screw. A through hole 31 is provided in the fixing column 3, and a connecting hole 11 communicating with the through hole 31 is provided in the scanning rod body 1, and a screw 4 passing through the through hole 31 is connected in the connecting hole 11. Generally, the screw 4 is composed of a head and a screw rod. After the entire scanning rod body 1 is assembled with the mandibular implant screw through the fixing column 3, the screw 4 is sequentially passed through the connecting hole 11 and the through hole 31 and then screwed, so that the fixing column 3 is fixed and stable. The through hole 31 in the fixing column 3 is preferably designed in a trumpet shape, such as Figure 3 As shown, it is convenient to embed the mandibular implant screw. After the screw 4 passes through the connecting hole 11 and the through hole 31 in sequence, the upper end surface of the screw 4 is flush with the upper end surface of the scanning rod body 1. When the screw 4 is screwed, when the upper end surface of the head of the screw 4 is flush with the upper end surface of the scanning rod body 1, it can represent that the screw 4 has been screwed to the mandibular implant screw, that is, it represents that the scanning rod body 1 is installed in place, and it can be determined by naked eyes whether the scanning rod body 1 is installed in place, which is convenient and quick.

[0020] Furthermore, a limiting portion 32 protruding toward the inside of the through hole 31 is provided at one end of the through hole 31 close to the connecting hole 11. After the screw portion of the screw 4 passes through the connecting hole 11 and the through hole 31 in sequence, the head of the screw 4 abuts against the limiting portion 32. At this time, the upper end surface of the head of the screw 4 is flush with the upper end surface of the scanning rod body 1, that is, the limiting portion 32 can effectively avoid excessive screwing of the screw 4, ensuring that the scanning rod body 1 is installed in position, and the upper end surface of the head of the screw 4 is flush with the upper end surface of the scanning rod body 1.

[0021] The scanning rod body 1 and the fixing column 3 are both integrally formed of titanium alloy, which has high hardness and corrosion resistance, can reduce the occurrence of inflammation in patients, and are safer to use.

[0022] In summary, the scanning rod body 1 is designed as an arc structure in accordance with the shape of the dental arch, which can adapt to each oral scan point at different positions, making it easier to splice the oral scan data, avoiding deformation of the oral scan data splicing, and using several of the slots 2 as feature marking points to match the oral scan data, the position of the implant can be obtained more accurately. In addition, the fixing column 3 can achieve quick assembly, speed up the entire implant restoration process, and save time and effort.

[0023] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An edentulous intraoral scanning rod, characterized in that: The invention comprises a scanning rod body (1), wherein the outer structure of the scanning rod body (1) is an arc-shaped design conforming to the shape of a dental arch, a plurality of notches (2) are provided on the scanning rod body (1), and the plurality of notches (2) are used as characteristic marking points to match oral scan data, the scanning rod body (1) is connected to a fixing column (3) for gingival penetration, a through hole (31) is provided in the fixing column (3), the scanning rod body (1) is provided with a connecting hole (11) communicating with the through hole (31), and a screw (4) passing through the through hole (31) is connected in the connecting hole (11).

2. The edentulous intraoral scanning rod according to claim 1, characterized in that: The notch (2) is arranged on the upper end surface of the scanning rod body (1), or at the connection between the upper end surface of the scanning rod body (1) and its side end surface.

3. The edentulous intraoral scanning rod according to claim 1, characterized in that: After the screw (4) passes through the connecting hole (11) and the through hole (31) in sequence, the upper end surface of the screw (4) is flush with the upper end surface of the scanning rod body (1).

4. The edentulous intraoral scanning rod according to claim 3, characterized in that: A limiting portion (32) protruding toward the inside of the through hole (31) is provided at one end of the through hole (31) close to the connecting hole (11); after the screw rod portion of the screw (4) passes through the connecting hole (11) and the through hole (31) in sequence, the head of the screw (4) abuts against the limiting portion (32), and at this time, the upper end surface of the screw (4) is flush with the upper end surface of the scanning rod body (1).

5. The edentulous intraoral scanning rod according to claim 4, characterized in that: The through hole (31) is designed to be trumpet-shaped.

6. The edentulous intraoral scanning rod according to claim 1, characterized in that: The scanning rod body (1) and the fixing column (3) are both made of titanium alloy and are integrally formed.

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