CN209966605U

CN209966605U - Anti-deformation digital occluding frame structure

Info

Publication number: CN209966605U
Application number: CN201920511982.9U
Authority: CN
Inventors: 李开武; 肖国营
Original assignee: Zhuhai Bapri Oral Health Ltd By Share Ltd
Current assignee: Zhuhai Bapri Oral Health Ltd By Share Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-01-21
Anticipated expiration: 2029-04-15

Abstract

The utility model provides a digital interlock frame structure of preapring for an unfavorable turn of events shape, it includes the same positioner of two sets of structures, and two sets of positioner set up in the both ends of dental cast symmetrically, and every positioner of group all includes a locating lever and one is used for connecting the dental cast with the link of locating lever, its characterized in that: the connecting end is a hollow table-shaped structure with a cambered surface at the top surface, one end surface of the connecting end is a vertical surface, the vertical surface is abutted to the bottom of the end surface of the dental cast, the positioning rod is connected to the upper surface of the connecting end, and the height of one end, abutted to the dental cast, of the connecting end is larger than that of the other end opposite to the connecting end. The utility model discloses a design the interlock frame for hollow arc platform shape structure, restrained the trend that the resin dental model shrink warp to avoid the deformation of digital interlock frame.

Description

Anti-deformation digital occluding frame structure

Technical Field

The utility model relates to an artificial tooth preparation field especially relates to a digital occluding frame.

Background

The digital impression technology is that the digital scanning equipment is used for scanning the tooth body and the surrounding soft and hard tissue conditions of a patient, so that a digital impression is obtained for further design and manufacture. The digital impression data needs to be processed into a complete dental working model through further design, including trimming edges and adding articulators, and finally the whole working model is processed through a 3D printing method.

At present, the material for manufacturing the digital working mold by using 3D printing is generally photosensitive resin, the resin is converged and shrunk under the influence of ultraviolet light, and if the shrinkage rate of the resin is too large, the deformation of the articulator is easily caused, so that the deformation of the articulator needs to be restrained and corrected.

As shown in fig. 1, the conventional articulator includes two sets of positioning devices, each set of positioning device includes a positioning rod 1 and a connecting end 2, the connecting end 2 is a transition structure for connecting the dental cast 3 and the positioning rod 1, and the positioning rod 1 is a structure for determining the occlusion position and depth. The positioning rod 1 is a cylindrical structure with the height larger than the width, and the cross section of the connecting end 2 is a flat rectangle. As shown in fig. 2, since the connecting end 2 is a flat structure, the structure tends to curl when the resin shrinks, which causes the connecting end 2 to warp and deform, so that the whole positioning device deforms, and finally, the occlusion and positioning of the dental cast are seriously inaccurate.

SUMMERY OF THE UTILITY MODEL

In order to prevent that the dentistry that 3D printed work mould shrink warp and lead to the interlock relation inaccurate, the utility model discloses improve from structural design, provide a neotype digital occluding frame structure, restrain the trend that digital occluding frame shrink warp.

The utility model aims at realizing through the following technical scheme:

the utility model provides a digital interlock frame structure of preapring for an unfavorable turn of events shape, its includes the same positioner of two sets of structures, and two sets of positioner set up in the both ends of dental model symmetrically, and every positioner of group all includes a locating lever and one is used for connecting the dental model with the link of locating lever, the link is the hollow platform type structure of cambered surface for the top surface, a terminal surface of link is vertical face, this vertical face with the bottom butt of the terminal surface of dental model, the locating lever connect in the upper surface of link, just the link with the height that highly is greater than the relative other end of the one end of dental model butt.

Preferably, the height of the connecting end gradually decreases from the one end to the other end.

Preferably, the thickness of the end surface of the connecting end, which abuts against the dental cast, is 4mm, and the width in the horizontal direction is 6 mm.

Preferably, the other end face of the connecting end, which is opposite to the one end face, has a thickness of 2mm and a width of 4mm in the horizontal direction.

Preferably, the top surface of the connecting end has a thickness of 1.5 mm.

Preferably, the height of the end surface of the connecting end is not less than the bottom height of the exposed tooth part in the dental cast.

Compared with the prior art, the utility model has the advantages of it is following:

the height of the end face of the connecting end, which is abutted against the dental cast, is increased, so that the clamping area and the clamping force between the connecting ends at the two ends and the dental cast are enhanced; the connecting end is arranged as a hollow shell, and the arc-shaped top surface of the shell can resist the internal stress of resin shrinkage deformation, so that the deformation amplitude is effectively reduced; the top surface of the connecting end is an arc surface which is gradually reduced from one end of the connecting end, which is abutted against the dental cast, to the other end, so that the connecting ends at the two ends of the dental cast form a structure with a high middle part and low two sides, and the stability is higher; the positioning rod is arranged on the top surface of the other end with lower height, and the distance between the positioning rod and the dental cast can be flexibly adjusted.

In a word, the utility model discloses a design the interlock frame for hollow arc platform shape structure, restrained the trend that the resin dental model shrink warp to avoid the deformation phenomenon of digital interlock frame.

Drawings

Fig. 1 is a schematic structural view of an articulator according to the background art of the present invention;

fig. 2 is a schematic view of the articulator shown in fig. 1 undergoing deformation;

fig. 3 is a schematic structural view of an articulator in accordance with an embodiment of the present invention;

fig. 4 is a schematic top view of the positioning device of the dental articulator of fig. 3;

fig. 5 is a schematic bottom view of the positioning device of the articulator shown in fig. 3.

Detailed Description

The present embodiment provides a deformation-preventing digital articulator structure, as shown in fig. 3, which comprises two sets of positioning devices, wherein the two sets of positioning devices have the same structure and are symmetrically disposed at two ends of a dental cast 30.

Each set of positioning means comprises a positioning rod 10 and a connecting end 20 for connecting the dental cast 30 to the positioning rod 10. Wherein the connecting end 20 is a transition structure connecting the dental cast 30 and the positioning rod 10, and the positioning rod 10 is a structure for determining the occlusion position and depth.

The connecting end 20 is a hollow table-shaped structure with an arc-shaped top surface, and includes two

opposite ends

23 and 24, and two

opposite end surfaces

21 and 22 corresponding to the two

opposite ends

23 and 24, respectively. The two opposing end faces 21, 22 are both vertical faces. One end face 21 abuts against the bottom of the outer end face of the dental cast 30, the positioning rod 10 is connected to the upper surface of the opposite end 24 of the connecting end 20, and the height of the connecting end 20 gradually decreases from the end 23 abutting against the dental cast 30 to the other end 24, that is, the height of the connecting end 20 smoothly gradually decreases from the end 23 abutting against the dental cast 30 to the opposite end 24 in an arc shape, as shown in detail in fig. 3.

As shown in fig. 4 and 5, the width of the one end surface 21 of the connecting end 20 abutting the dental cast 30 is larger than the width of the other end 22, and the connecting end 20 has a hollow structure, so that it is substantially a single shell, and the shell thickness of the one end surface 21 of the connecting end 20 is larger than the shell thickness of the other end surface 22. Specifically, the thickness of the one end surface 21 of the connecting end 20 is 4mm, and the width thereof is about 6mm, and the thickness of the other end surface 22 of the connecting end 20 is 2mm, and the width thereof is 4 mm. And the housing thickness of the curved top surface of the connection end 20 is 1.5 mm.

The embodiment can effectively improve the deformation phenomenon of the articulator easily generated when the photosensitive resin is used for 3D printing of the dental model, and is favorable for the maturity and perfection of the digital manufacturing technology of the dental model.

Claims

1. The utility model provides a digital articulator structure of preapring for an unfavorable turn of events shape, its includes the same positioner of two sets of structures, and two sets of positioner set up in the both ends of dental cast symmetrically, and every positioner of group all includes a locating lever and one is used for connecting the dental cast with the link of locating lever, its characterized in that: the connecting end is a hollow table-shaped structure with a cambered surface at the top surface, one end surface of the connecting end is a vertical surface, the vertical surface is abutted to the bottom of the end surface of the dental cast, the positioning rod is connected to the upper surface of the connecting end, and the height of one end, abutted to the dental cast, of the connecting end is larger than that of the other end opposite to the connecting end.

2. The digital articulator structure of claim 1, wherein the height of the connection ends gradually decreases from the one end to the other end.

3. The anti-deformation digital articulator structure of claim 2, wherein a height of the one end surface of the connecting end is no less than a bottom height of a portion of teeth exposed in the dental cast.

4. The digital articulator structure of any one of claims 1 to 3, wherein the end surface of the connecting end abutting against the dental cast has a thickness of 4mm and a width in a horizontal direction of 6 mm.

5. The digital articulator structure of preventing deformation according to any one of claims 1 to 3, wherein the other end surface of the connection end opposite to the one end surface has a thickness of 2mm and a width in a horizontal direction of 4 mm.

6. The digital articulator structure of any one of claims 1 to 3, wherein a thickness of a top surface of the connection end is 1.5 mm.