A scanning rod for dental implant restoration

Abstract

The utility model discloses a scanning rod for dental implantation repair, include: scanning rod body, scanning interface and auxiliary component, scanning interface passes through scanning rod body and is arranged, scanning rod body includes the through gingival component and positioning part of being connected, positioning part with auxiliary component connects, the utility model discloses through the improvement of scanning rod structure, shortens the mouth scanning time, reduces the hardware requirement of mouth scanning equipment simultaneously, improves the precision of oral cavity scanning.

Description

Technical Field

[0001] This utility model belongs to the field of dental implant technology, specifically relating to a scanning bar for dental implant restoration. Background Technology

[0002] Before fitting implant-supported dentures, the most important thing for patients is to accurately convey the position of the implant within the patient's mouth to the technician. Current techniques typically employ the following methods: 1. Traditional impression taking using silicone rubber impression materials and trays; 2. Digital impression taking, which involves mounting corresponding digital scanning rods at the implant or abutment level, depending on the type of implant. Compared to traditional silicone rubber impression taking, digital impression taking for dental implants offers advantages such as high precision, better comfort, and easier communication and preservation, thus it is widely used in clinical practice. Many existing studies have shown that in single-tooth and three-unit implant fixed restorations, the accuracy of digital impression taking is comparable to that of traditional impressions; however, in long-span implant restorations and complete denture restorations, the accuracy of digital impression taking remains unsatisfactory. Especially in edentulous restorations, due to the absence of natural tooth hard tissue, intraoral information is generally reconstructed by splicing gingiva together. Oral scanning imaging involves the superposition of surfaces, the overlap of common points between two surfaces, and the superposition of numerous surfaces to obtain complete intraoral information. When two surfaces have high similarity, they completely overlap; the intraoral mucosa has high similarity; when the equipment hardware is low, it is impossible to obtain complete intraoral information; optical intraoral scanners have low recognition ability of gingiva; low-configuration optical intraoral scanners cannot stitch together half of the gingiva, especially when there is no natural tooth hard tissue. Because the gingiva has mobility, it will change to a certain extent during the intraoral scanning process (especially the mandible). When the surface obtained by the intraoral scan is not accurate, the superimposed stitched data will also be inaccurate, which may lead to interruption of the scanning process in severe cases. Utility Model Content

[0003] To overcome the aforementioned technical deficiencies, this invention provides a scanning rod for dental implant restoration, which can improve the accuracy of oral scanning.

[0004] To solve the above problems, this utility model is implemented according to the following technical solution:

[0005] A scanning bar for dental implant restoration includes: a scanning bar body, a scanning interface, and auxiliary components;

[0006] The scanning interface is provided through the scanning rod body;

[0007] The scanning rod includes a gingival penetration component and a positioning component connected together;

[0008] The positioning component is connected to the auxiliary component.

[0009] As a further improvement of this utility model, the side of the positioning component is provided with several inclined surfaces.

[0010] As a further improvement of this utility model, the first end face of the positioning component is set as a plane, and the second end face is connected to the gingival component.

[0011] As a further improvement of this utility model, the scanning interface includes: a first through hole, a second through hole, and a third through hole connected in sequence.

[0012] As a further improvement of this utility model, a fourth through hole is also connected between the first through hole and the second through hole.

[0013] As a further improvement of this utility model, the shape of the third through hole is consistent with the shape of the composite abutment or implant.

[0014] As a further improvement of this utility model, the auxiliary component is configured in a stepped shape, with its height decreasing sequentially from the positioning component toward the gingival component.

[0015] As a further improvement of this utility model, the auxiliary component is provided with several recesses and / or protrusions.

[0016] As a further improvement of this utility model, the side of the positioning component is provided with three inclined surfaces.

[0017] Compared with the prior art, the beneficial effects of this utility model are: by setting auxiliary components on the scanning rod, the oral scanning time is shortened and the hardware requirements of the oral scanning equipment are reduced, while the accuracy of oral scanning is improved. Attached Figure Description

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 The three-dimensional scanning rod described in Embodiment 1 Figure 1 ;

[0020] Figure 2 The three-dimensional scanning rod described in Embodiment 1 Figure 2 ;

[0021] Figure 3 The three-dimensional scanning rod described in Embodiment 1 Figure 3 ;

[0022] Figure 4 This is a cross-sectional view of the scanning rod described in Embodiment 1;

[0023] Figure 5 This is a perspective view of the scanning rod described in Embodiment 1;

[0024] Figure 6 This is a top view of the scanning rod described in Embodiment 2;

[0025] Figure 7 This is a top view of the scanning rod described in another embodiment of Example 2.

[0026] Marking descriptions: 1. Scanning rod; 11. Gingival piercing component; 12. Positioning component; 121. Inclined surface; 2. Scanning interface; 21. First through hole; 22. Second through hole; 23. Third through hole; 24. Fourth through hole; 3. Auxiliary component; 31. Recess; 32. Protrusion. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] Example 1

[0029] This embodiment discloses a scanning rod for dental implant restoration, which is manufactured by 3D printing and includes: a scanning rod body, a scanning interface, and auxiliary components; the scanning interface is disposed through the scanning rod body; the scanning rod body includes a transgingival component and a positioning component connected to each other; the positioning component is connected to the auxiliary components.

[0030] In practical use, the perforating component 11 contacts the gingiva. A height of 4mm satisfies over 90% of cases. For cases with deeper perforations, the height of the perforating component 11 can be increased to meet the needs of special cases. Intraoral scanning requires clarity and completeness. The intraoral scan data is fitted to the database in the software via the positioning component 12. The auxiliary component 3 connects all implants as much as possible into a unified whole, ensuring that the overlapping area of ​​the intraoral scan data is the scanning rod, not the gingiva, thereby increasing the accuracy of the scanning rod. The scanning rod interface is used to contact the composite abutment or implant; simultaneously, the bolt connects to the composite abutment or implant through this scanning rod interface.

[0031] Furthermore, the positioning component 12 has several inclined surfaces 121 on its side. The first end face of the positioning component 12 is set as a plane, and the second end face is connected to the transgingival component 11. Both the inclined surface and the first end face are positioning surfaces of the scanning rod. The intraoral scan data is fitted with the database in the software through the inclined surface, the first end face, and the database: the first end face and the inclined surface are positioning surfaces of the scanning rod; the inclined surface is used to identify the direction of the implant, and the first end face is used to locate the height of the implant, thereby obtaining the three-dimensional position of the implant.

[0032] like Figure 5As shown, the scanning interface 2 includes a first through hole 21, a second through hole 22, and a third through hole 23 connected in sequence. A fourth through hole 24 is also connected between the first through hole 21 and the second through hole 22.

[0033] It should be noted that different implantation systems require different scanning interfaces 2. The size of the scanning interface 2 can be flexibly configured according to actual usage, so that the scanning rod can match the corresponding composite abutment or implant. The first through hole 21 is used for the bolt to pass through, the second through hole 22 is used for positioning the bolt, and its size is equal to or slightly larger than the bolt diameter. The shape of the third through hole 23 is consistent with the shape of the composite abutment or implant, and it is used to contact the composite abutment or implant. In addition, the size of the third through hole 23 should also be consistent with the size of the composite abutment or implant. For example, when the diameter of the composite abutment is 3.5mm, the scanning interface 2 becomes an inverted cone with a bottom diameter of 3.5mm and an upper diameter of 4.6mm. When the diameter of the composite abutment is 4.8mm, the scanning interface 2 becomes a regular cone with a bottom diameter of 4.8mm and an upper diameter of 4.6mm.

[0034] The auxiliary component 3 is set in a stepped shape, with its height decreasing sequentially from the positioning component 12 toward the transgingival component 11. The reason for this structure is that oral cavity scanning data is formed by the superposition of surfaces. If two surfaces are highly similar, data superposition errors are likely to occur, which will reduce the accuracy of the entire cavity scanning data. Making it in a stepped shape can reduce the similarity between the two surfaces, thereby improving the accuracy of the scan.

[0035] Preferably, the side of the positioning component 12 is provided with three inclined surfaces 121.

[0036] The present invention will be further improved in conjunction with the specific implementation process, as follows:

[0037] First, through the third through hole 23, multiple scanning rods are respectively placed on the composite abutment or implant, and the position of each scanning rod is adjusted to connect all the implants into a whole as much as possible.

[0038] Subsequently, the bolt is inserted through the first through hole 21 and fixed to the composite abutment or implant by the bolt. After the bolt is tightened, scanning can begin.

[0039] Example 2

[0040] This embodiment provides another one, such as Figure 6 and Figure 7As shown, the difference between this and Embodiment 1 is that the auxiliary component 3 is provided with a number of recesses 31 and / or protrusions 32, so that the shape of the multiple scanning rods in the mouth is unique. For example, if there are six implants in the mouth, six scanning rods are required. The recesses 31 and protrusions 32 make the shape of each scanning rod slightly different, thereby further improving the scanning accuracy.

[0041] Based on the above embodiments 1 and 2, the present invention has the following beneficial effects:

[0042] 1. By improving the structure of the scanning rod, the scanning time of the oral cavity is shortened and the hardware requirements of the oral scanning equipment are reduced, while the accuracy of oral scanning is improved.

[0043] 2. This scanning rod is 3D printed and can be designed and produced according to different implant types without changing the external structure. The scanning interface can be designed and adjusted according to different implant interfaces. It can be used for implant level molding or implant abutment level molding. It can be sterilized and reused repeatedly, and is inexpensive.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A scan bar for dental implant restoration, characterized in that, include: Scanning rod, scanning interface, and auxiliary components; The scanning interface is provided through the scanning rod body; The scanning rod includes a gingival penetration component and a positioning component connected together; The positioning component is connected to the auxiliary component; The side of the positioning component is provided with several inclined surfaces; The first end face of the positioning component is set as a plane, and the second end face is connected to the gingival component; The auxiliary component is configured in a stepped shape, with its height decreasing sequentially from the positioning component toward the gingival component.

2. The scanning bar of claim 1, wherein, The scanning interface includes a first through hole, a second through hole, and a third through hole that are connected in sequence.

3. The scanning bar of claim 2, wherein, A fourth through hole is also connected between the first through hole and the second through hole.

4. The scanning bar of claim 3, wherein, The shape of the third through hole is consistent with the shape of the composite abutment or implant.

5. The scanning bar of claim 1, wherein, The auxiliary component is provided with several recesses and / or protrusions.

6. The scanning bar of claim 1, wherein, The positioning component has three inclined surfaces on its side.

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