TPU (thermoplastic polyurethane) powder additive manufacturing full-customized early-stage appliance

Abstract

The utility model relates to the technical field of correctors, in particular to a TPU (thermoplastic polyurethane) powder additive manufacturing full-customized early corrector which comprises symmetrical correction templates, a limiting component is arranged between the two correction templates, gaskets are arranged in clamping grooves, inserting blocks are symmetrically arranged at the end part of one correction template, and the other end part of the other correction template is provided with clamping grooves. A slot is formed in a position, corresponding to the insertion block, of the end part of the other correction template; the limiting assembly comprises a limiting rod and clamping columns which are distributed on the limiting rod at equal intervals; according to the TPU powder additive manufacturing full-customized early-stage appliance based on the SLS mode, the two correction templates are arranged and are spliced and matched under the condition that insertion blocks and insertion grooves are spliced and matched, and the two spliced correction templates are limited and fixed under the condition that limiting rods with a plurality of clamping columns are matched, so that the splicing stability is improved; under the matching of the gasket with the tooth groove, the stability of tight fitting of the teeth in the clamping groove is favorably improved, and the friction force is increased, so that the tooth correction matching is stably carried out.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic appliance technology, specifically a fully customized early orthodontic appliance manufactured using TPU powder additive manufacturing. Background Art

[0002] An orthodontic appliance is a device used to treat malocclusions. It generates force, or the force exerted by the masticatory muscles and perioral muscles, causing changes in the malocclusion of the frontal bone and misaligned teeth through the periodontal supporting tissues, thereby promoting normal growth and development of the dentofacial region. The SLS mode is also known as selective laser sintering. TPU powder is a high-purity TPU elastomer powder. Orthodontic appliances are made by selective laser sintering with TPU elastomer powder, which increases the overall structural stability.

[0003] Utility model announcement CN211381875U discloses a customized LR-type orthodontic appliance for treating early reverse overbite. It includes a lower lip arch that fits snugly against the tooth surface. The lower lip arch is connected to a buccal curved spring lower connector. The buccal curved spring lower connector is connected to a maxillary molar occlusal pad and a mandibular molar occlusal pad with occlusal elevation functions. The buccal curved spring lower connector is also connected to a buccal curved spring upper connector. The buccal curved spring upper connector is equipped with a buccal curved spring that pushes the maxilla forward and pulls the mandible backward. The buccal curved spring upper connector is equipped with an upper lip guard that opens the upper lip, distracts bone formation, and promotes maxillary bone development. The upper lip guard is located on the labial mucosa on both sides of the maxillary central incisors. The upper lip guard is connected to the maxillary molar occlusal pad via an elastic lip arch. A palatal arch that promotes maxillary arch development is provided between the maxillary molar occlusal pads.

[0004] The above-mentioned technical solutions have the advantages of promoting jawbone development, adjusting the upper and lower jaws, and adjusting dental reverse occlusion; however, after long-term use, they are not easy to disassemble quickly and thoroughly clean the interior, and they are not easy to assemble and use. Furthermore, the overall structural stability cannot be increased after assembly. Utility Model Content

[0005] The purpose of this invention is to provide a fully customized early orthodontic appliance manufactured using TPU powder additive manufacturing, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fully customized early orthodontic appliance manufactured using TPU powder additive manufacturing includes symmetrical orthodontic templates, with a limiting component between the two orthodontic templates. Each orthodontic template has a slot on its top, and a pad is provided in each slot. One orthodontic template has a symmetrically arranged insert block at its end, and the other orthodontic template has a slot at its end corresponding to the insert block. The top of each orthodontic template also has several arc-shaped grooves. The limiting component includes a limiting rod and equally spaced locking posts on the limiting rod.

[0008] Preferably, the gasket is in the shape of an arc plate, and each gasket has a toothed groove.

[0009] In this invention, the gasket is made of silicone material, which increases the friction with the teeth and reduces the impact of the orthodontic template sliding on the teeth.

[0010] Preferably, the width of the outer wall of the gasket is adapted to the width of the inner wall of the slot, and the bottom of the gasket is bonded and fixed to the bottom of the slot.

[0011] In this invention, the gasket and the slot are combined accordingly to fill and fit the bottom of the slot, and the toothed groove on the gasket fits tightly with the corresponding tooth end, increasing the stability of the installation.

[0012] Preferably, the insert is I-shaped, the insert and the orthodontic template are integrally formed, the slot is I-shaped, and the width of the inner wall of the slot is adapted to the width of the outer wall of the insert.

[0013] In this invention, a plug and a slot are designed to fit together to achieve a tight fit between the two orthodontic templates, increasing the tightness of the combination of the two orthodontic templates. When the orthodontic templates need to be cleaned, the plug and the slot are separated to achieve quick separation of the two orthodontic templates, which helps to thoroughly clean the inside of the orthodontic templates.

[0014] Preferably, the outer wall of the orthodontic template is provided with raised strips, the raised strips are in the shape of arc cylinders, and the raised strips and the orthodontic template are integrally formed.

[0015] In this invention, the convex strips increase the area of ​​the orthodontic template, thereby increasing the points of force application and facilitating the overall fitting or removal of the orthodontic template.

[0016] Preferably, the locking post is U-shaped, and the locking post and the limiting rod are integrally formed, with the width of the outer wall of the locking post matching the width of the inner wall of the arc-shaped groove.

[0017] In this invention, multiple locking posts are inserted into corresponding arc-shaped grooves, and a limiting rod is used to achieve stable assembly of two orthodontic templates.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This utility model sets two orthodontic templates and achieves two assembly cooperation through the insertion of the insert and slot. With the cooperation of the limiting rod with multiple clasps, the two orthodontic templates are limited and fixed after assembly, which increases the stability of assembly. With the cooperation of the toothed shim, it helps to increase the stability of the close fit of the teeth in the slot. The increased friction helps to stabilize the orthodontic cooperation.

[0020] 2. By setting protruding strips, this utility model increases the contact area of ​​the outer wall of the orthodontic template, which helps to provide a point of force when the orthodontic template is worn. At the same time, it is easy to remove and replace the orthodontic template. After long-term use, the two orthodontic templates can be removed and separated to fully clean and cooperate internally. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall flipping structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the combined structure of the limiting component and the orthodontic template of this utility model;

[0024] Figure 4 This is an exploded structural diagram of the orthodontic template of this utility model;

[0025] Figure 5 This is a schematic diagram of the combined structure of the orthodontic template and pad of this utility model.

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Orthodontic template; 10. Arc groove; 11. Raised bar; 12. Insert block; 13. Slot; 14. Card slot;

[0028] 2. Limiting component; 20. Limiting rod; 21. Locking post;

[0029] 3. Gasket; 30. Gear. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Please see Figures 1-5 This embodiment provides a technical solution:

[0032] A fully customized early orthodontic appliance made by TPU powder additive manufacturing includes symmetrical orthodontic templates 1, and a limiting component 2 between the two orthodontic templates 1. Each orthodontic template 1 has a slot 14 on its top, and each slot 14 has a pad 3. The pad 3 is in the shape of an arc plate, and each pad 3 has a toothed groove 30.

[0033] In this invention, the pad 3 is made of silicone material, which increases the friction with the teeth and reduces the impact of the orthodontic template 1 sliding on the teeth.

[0034] Furthermore, the width of the outer wall of the gasket 3 is adapted to the width of the inner wall of the slot 14, and the bottom of the gasket 3 is bonded and fixed to the bottom of the slot 14.

[0035] In this invention, the gasket 3 and the slot 14 are combined accordingly to fill and fit the bottom of the slot 14, and the toothed groove 30 on the gasket 3 fits tightly with the corresponding tooth end, increasing the stability of the installation.

[0036] Specifically, one of the orthodontic templates 1 has symmetrically arranged inserts 12 at one end, and the other orthodontic template 1 has a slot 13 at the end corresponding to the inserts 12. The inserts 12 are I-shaped and are integrally formed with the orthodontic template 1. The slot 13 is I-shaped and the width of the inner wall of the slot 13 is adapted to the width of the outer wall of the inserts 12.

[0037] Both orthodontic templates 1 are made of TPU powder additive manufacturing and selective laser sintering, which facilitates quick shaping and customization, and helps to fit patients of different body sizes.

[0038] In this utility model, the insert 12 and the slot 13 are connected to each other to achieve a tight fit between the two orthodontic templates 1, increasing the tightness of the combination of the two orthodontic templates 1. When it is necessary to clean the orthodontic template 1, the insert 12 and the slot 13 are separated to achieve quick separation of the two orthodontic templates 1, which helps to fully clean the inside of the orthodontic template 1.

[0039] Secondly, the top of the correction template 1 is also provided with several arc-shaped grooves 10, and the limiting component 2 includes a limiting rod 20 and locking posts 21 evenly distributed on the limiting rod 20.

[0040] It should be noted that the locking post 21 is U-shaped, and the locking post 21 and the limiting rod 20 are integrally formed. The width of the outer wall of the locking post 21 is adapted to the width of the inner wall of the arc groove 10.

[0041] In this utility model, multiple locking posts 21 are inserted into and cooperate with the corresponding arc-shaped grooves 10, and with the help of the limiting rods 20, the two orthodontic templates 1 are stably assembled and cooperated.

[0042] Furthermore, the outer wall of the orthodontic template 1 is provided with protrusions 11, which are in the shape of arc cylinders and are integrally formed with the orthodontic template 1.

[0043] In this invention, the convex strip 11 increases the area of ​​the orthodontic template 1, thereby increasing the force points and facilitating the overall wearing or removal of the orthodontic template 1.

[0044] In this embodiment of the TPU powder additive manufacturing fully customized early orthodontic appliance, the user first takes a model of the teeth to be orthodontized through a mold, and then uses selective laser sintering with TPU elastomer powder to customize and fit the orthodontic template 1 of the patient's teeth model. Then, the pad 3 with slot 13 is bonded and combined with the corresponding orthodontic template 1.

[0045] When orthodontic treatment is required, the two orthodontic templates 1 are connected to the slots 13 via inserts 12 to achieve assembly. With the cooperation of multiple clasps 21 and limiting rods 20, the clasps 21 are connected to the arc-shaped grooves 10 to fix the two orthodontic templates 1 together, increasing the stability of the combination. The two orthodontic templates 1 are then connected to the corresponding patient teeth for corresponding orthodontic treatment.

[0046] When the inside of the orthodontic template 1 needs to be cleaned after long-term treatment, the force point is increased with the cooperation of the protrusion 11, which facilitates quick removal and fitting. The retaining post 21 is removed from the arc groove 10 in sequence, and the insert block 12 is separated from the slot 13, realizing the separation of the two orthodontic templates 1 and allowing for thorough cleaning and fitting of the inside.

Claims

1. A fully customized early orthodontic appliance manufactured using TPU powder additive manufacturing, comprising symmetrical orthodontic templates (1), wherein a limiting component (2) is provided between the two orthodontic templates (1), characterized in that: The top of each of the orthodontic templates (1) is provided with a slot (14), and each of the slots (14) is provided with a pad (3). One of the orthodontic templates (1) is provided with a symmetrical insert (12) at one end, and the other orthodontic template (1) is provided with a slot (13) at the end corresponding to the insert (12). The top of the orthodontic template (1) is also provided with several arc-shaped grooves (10). The limiting component (2) includes a limiting rod (20) and equally spaced locking posts (21) on the limiting rod (20).

2. The TPU powder additive manufacturing fully customized early orthodontic appliance according to claim 1, characterized in that: The gasket (3) is in the shape of an arc plate, and the gasket (3) is provided with toothed grooves (30).

3. The TPU powder additive manufacturing fully customized early orthodontic appliance according to claim 1, characterized in that: The width of the outer wall of the gasket (3) is adapted to the width of the inner wall of the slot (14), and the bottom of the gasket (3) is bonded and fixed to the bottom of the slot (14).

4. The TPU powder additive manufacturing fully customized early orthodontic appliance according to claim 1, characterized in that: The insert (12) is in the shape of an I-beam, and the insert (12) and the orthodontic template (1) are integrally formed. The slot (13) is in the shape of an I-beam, and the width of the inner wall of the slot (13) is adapted to the width of the outer wall of the insert (12).

5. The TPU powder additive manufacturing fully customized early orthodontic appliance according to claim 1, characterized in that: The outer wall of the correction template (1) is provided with protrusions (11), the protrusions (11) are in the shape of arc cylinders, and the protrusions (11) and the correction template (1) are integrally formed.

6. The TPU powder additive manufacturing fully customized early orthodontic appliance according to claim 1, characterized in that: The locking post (21) is U-shaped. The locking post (21) and the limiting rod (20) are integrally formed. The width of the outer wall of the locking post (21) is adapted to the width of the inner wall of the arc groove (10).

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