CN212879635U

CN212879635U - Prevent stinging stealthy just abnormal ware of correcting of splitting

Info

Publication number: CN212879635U
Application number: CN201921975835.3U
Authority: CN
Inventors: 叶祥海; 宋雷; 张伟伟; 王启超; 宣梦洁
Original assignee: Hangzhou Meiqi Technology Co ltd
Current assignee: Hangzhou Meiqi Technology Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2021-04-06
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a prevent stinging stealthy just abnormal ware of correcting of splitting. The preparation material of the appliance adopts an anti-biting invisible orthodontic diaphragm, and the shape of the appliance is matched with the teeth of a user; the invisible orthodontic diaphragm comprises a hard layer and a soft layer which are mutually laminated, wherein one side of the hard layer is contacted with teeth, the other side of the hard layer is contacted with the soft layer, and the hard layer and the soft layer are both prepared by injection molding, co-extrusion or lamination; the hard layer comprises a two-layer structure or a one-layer structure stacked on each other; the soft layer comprises a two-layer structure or a one-layer structure which is mutually stacked, the two-layer structure adopts two co-extrusion layers, two injection molding layers or two laminated layers, and the one-layer structure adopts one co-extrusion layer, one injection molding layer or one laminated layer. The utility model discloses can provide sufficient stealthy power of correcting, can effectively prevent the bruxism fracture simultaneously, have good economic value, can use widely on a large scale.

Description

Prevent stinging stealthy just abnormal ware of correcting of splitting

Technical Field

The utility model relates to a rescue ware, concretely relates to prevent stinging stealthy just abnormal rescue ware of splitting.

Background

With the pursuit of beauty and comfort in the orthodontic process, the invisible correction is more and more accepted and used by users. The invisible bracket-free orthodontic appliance is a movable orthodontic device made of transparent elastic materials and designed and manufactured by computer assistance, and consists of a series of orthodontic appliances, and the aim of straightening teeth is finally achieved through continuous small-range movement of the teeth. The membrane material commonly used in the prior art is a single layer of high hardness material with a thickness of between 0.6 and 0.8 mm. Because the single-layer material with high hardness is always inherently brittle, and some patients have the habit of grinding or biting teeth at night, and the invisible orthodontic appliance is inevitably cracked, the research on the anti-biting invisible orthodontic film and the appliance has important significance.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem in the background art, the utility model provides a prevent stinging stealthy just abnormal correction ware of splitting effectively reduces the fracture probability simultaneously satisfying stealthy just abnormal medical effect.

The utility model adopts the technical scheme as follows:

anti-biting invisible orthodontic diaphragm

The utility model discloses the diaphragm includes hard layer and the soft layer that stacks up each other, one side and the tooth contact of hard layer, the opposite side and the soft layer contact of hard layer, and hard layer and soft layer are all through moulding plastics, crowd or the lamination preparation forms altogether.

The hard layer includes a two-layer structure or a one-layer structure stacked on each other.

The soft layer includes a two-layer structure or a one-layer structure stacked on each other.

The two-layer structure adopts two co-extrusion layers, two injection molding layers or two laminated layers, and the one-layer structure adopts one co-extrusion layer, one injection molding layer or one laminated layer.

The co-extrusion layer is formed by co-extrusion, the injection molding layer is formed by injection molding, and the laminated layer is formed by laminating equipment.

The thickness of the hard layer is 0.3-0.5mm, and the thickness of the soft layer is 0.25-0.5 mm.

The hardness of the hard layer is greater than that of the soft layer. The maximum hardness of the soft layer consisting of the two-layer structure is less than the minimum hardness of the hard layer consisting of the one-layer structure or the two-layer structure.

The hard layer is made of one or more of PETG, TPU and PC.

The soft layer is made of one or more of TPU, TPE, EVA and TPV.

The hardness of the soft layer is 60A-85D, the tensile strength is greater than 34MPa, the elongation is greater than 200%, the flexural modulus is greater than 240MPa, and the 400-nm 800nm light transmittance is greater than 75%.

The yield elongation of the hard layer is more than 4%, the flexural modulus is more than 600MPa, and the 400-800nm light transmittance is more than 75%.

Second, adopt above-mentioned prevent stinging stealthy orthodontic appliance of stealthy orthodontic diaphragm of split

The preparation material of the anti-biting-cracking invisible orthodontic appliance adopts the anti-biting-cracking invisible orthodontic diaphragm, and the shape of the appliance is matched with the teeth of a user.

The appliance is provided with a hard layer at one side close to the teeth and a soft layer at the side far away from the teeth.

The utility model has the advantages that:

(1) the utility model discloses owing to be equipped with the hard coat and the soft layer of hardness gradient, hard coat contact tooth for provide the just abnormal required sufficient power of tooth, soft layer is located the hard coat outside, is used for buffering the occlusal force, effectively reduces molar fracture probability.

(2) The utility model discloses can provide sufficient stealthy power of correcting, can effectively prevent the bruxism fracture simultaneously, have good economic value, can use widely on a large scale.

Drawings

Fig. 1 is a schematic view of a bite-preventing invisible orthodontic membrane.

In the figure: the soft layer structure comprises a hard layer 1, a soft layer 2, an upper hard layer structure 1-1, a lower hard layer structure 1-2, an upper soft layer structure 2-1 and a lower soft layer structure 2-2.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the diaphragm comprises a hard layer 1 and a soft layer 2, the hard layer 1 and the soft layer 2 are composed of a co-extrusion layer, an injection molding layer or a lamination layer, the co-extrusion layer is formed by co-extrusion, the injection molding layer is formed by injection molding, and the lamination layer is formed by lamination equipment; the thickness of the hard layer 1 is 0.3-0.5mm, and the thickness of the soft layer 2 is 0.25-0.5 mm. The hard layer comprises an upper layer structure and a lower layer structure, wherein one layer is an upper hard layer structure 1-1, and the other layer is a lower hard layer structure 1-2; the soft layer 2 comprises an upper layer structure and a lower layer structure, wherein one layer is an upper layer soft layer structure 2-1, and the other layer is a lower layer soft layer structure 2-2; the hardness of the hard layer 1 is greater than that of the soft layer 2. The hard layer 1 is made of one or more of PETG, TPU and PC, and the soft layer 2 is made of one or more of TPU, TPE, EVA and TPV. The hardness of the soft layer 2 is 60A-85D, the tensile strength is greater than 34MPa, the elongation is greater than 200%, the flexural modulus is greater than 240MPa, and the 400-nm 800nm light transmittance is greater than 75%. The yield elongation of the hard layer 1 is more than 4%, the flexural modulus is more than 600MPa, and the 400-800nm light transmittance is more than 75%.

Example 1:

the hard layer 1 of the anti-biting invisible orthodontic diaphragm adopts two co-extrusion layers, two injection molding layers or two laminated layers, and the soft layer 2 adopts one co-extrusion layer, one injection molding layer or one laminated layer.

The anti-biting-cracking invisible orthodontic appliance is prepared from the anti-biting-cracking invisible orthodontic diaphragm of the embodiment 1.

Example 2:

the hard layer 1 of the anti-biting invisible orthodontic diaphragm adopts two co-extrusion layers, two injection molding layers or two laminated layers, and the soft layer 2 adopts two co-extrusion layers, two injection molding layers or two laminated layers.

The anti-biting-cracking invisible orthodontic appliance is prepared from the anti-biting-cracking invisible orthodontic diaphragm of the embodiment 2.

Example 3:

the hard layer 1 of the anti-biting invisible orthodontic diaphragm adopts a co-extrusion layer, an injection molding layer or a laminating layer, and the soft layer 2 adopts two co-extrusion layers, two injection molding layers or two laminating layers.

The anti-biting-cracking invisible orthodontic appliance is prepared from the anti-biting-cracking invisible orthodontic diaphragm of the embodiment 3.

Example 4:

the hard layer 1 of the anti-biting invisible orthodontic diaphragm adopts a co-extrusion layer, an injection molding layer or a laminating layer, and the soft layer 2 adopts a co-extrusion layer, an injection molding layer or a laminating layer.

The anti-biting-cracking invisible orthodontic appliance is prepared from the anti-biting-cracking invisible orthodontic diaphragm of the embodiment 4.

Claims

1. The utility model provides a prevent stealthy orthodontic appliances of sting split which characterized in that: the preparation material of the appliance adopts an anti-biting invisible orthodontic diaphragm, and the shape of the appliance is matched with the teeth of a user;

the anti-bite invisible orthodontic diaphragm comprises a hard layer (1) and a soft layer (2) which are mutually laminated, wherein one side of the hard layer is contacted with teeth, the other side of the hard layer is contacted with the soft layer (2), and the hard layer (1) and the soft layer (2) are both prepared by injection molding, co-extrusion or lamination;

the hard layer (1) comprises a two-layer structure which is mutually laminated, and the soft layer (2) comprises a two-layer structure which is mutually laminated;

the two-layer structure adopts two co-extrusion layers, two injection molding layers or two laminated layers;

the thickness of the hard layer (1) is 0.3-0.5mm, and the thickness of the soft layer (2) is 0.25-0.5 mm;

the hardness of the soft layer (2) is 60A-85D, the tensile strength is greater than 34MPa, the elongation is greater than 200%, the flexural modulus is greater than 240MPa, and the 400-800nm light transmittance is greater than 75%;

the hardness of the hard layer (1) is greater than that of the soft layer (2);

the yield elongation of the hard layer (1) is more than 4%, and the flexural modulus is more than 600 MPa.

2. The bite-resistant invisible orthodontic appliance of claim 1, wherein: one side of the appliance, which is close to the teeth, is provided with a hard layer (1) of the invisible orthodontic diaphragm, and the side of the appliance, which is far from the teeth, is provided with a soft layer (2) of the invisible orthodontic diaphragm.