Invisible brace and method of use thereof

Abstract

The present invention discloses an invisible brace and a method for using the same, comprising a brace for providing continuous correction force and a chewing stick for improving the fit between the brace and teeth, the brace comprising a hard layer and a soft layer for contacting the teeth, the surface of the soft layer is uneven, the soft layer and the hard layer are integrally formed, and the chewing stick is adapted to the brace. The present invention provides an invisible brace and a method for using the same, which can batch prepare glue shearing samples with consistent pressure, can improve the fit between the brace and teeth, and improve the comfort and compliance of the brace.

Description

Technical Field

[0001] The present invention relates to the technical field of medical supplies, and in particular to an invisible orthodontic appliance and a method of using the same. Background Art

[0002] Braces are a commonly used tool for people to correct their teeth. Braces use continuous force on the teeth to gradually align the teeth. Compared with fixed braces, invisible braces are more beautiful, comfortable, and easy to clean. This has led more and more adult patients to tend to use the latter. In the process of wearing invisible braces, patients need to closely cooperate with the use of chewing gum to increase the fit between the braces and the teeth. Only with fitted braces can the deformed parts act on the corresponding tooth surface. Under the action of the rebound force of elastic deformation, the teeth move as expected. Once the braces do not fit the teeth and the braces come off, the magnitude, direction and point of action of the correction force will change, which will cause the teeth to move in an unexpected direction, and the teeth will not move on the expected track. The teeth will derail, resulting in the braces being unable to be in place, the teeth tilting, and the accuracy of treatment being reduced.

[0003] In the existing technology, when teeth are derailed early in the clinic, it depends on the doctor's clinical experience to find and treat them early. When there is a visible gap between the tooth and the brace, and the attachment and the groove on the brace are significantly not in line, the tooth has been seriously derailed. At this time, for most doctors, it is necessary to re-prepare the model and restart the treatment, which prolongs the course of correction and reduces patient satisfaction.

[0004] For example, a "corrective braces set and invisible braces" disclosed in Chinese patent documents, with the announcement number CN204351949U, is an orthodontic braces set, whose invisible braces include multiple crowns arranged in a U shape, wherein two non-adjacent crowns are set as fixed crowns, and a corrective crown is set between the two crowns, and a buckle groove and a pushing groove are respectively provided in the fixed and corrective crowns, and corresponding buckle grooves and pushing grooves are further provided with buckled and fixed fasteners and a pushing piece that can be covered. Disadvantages: The invisible braces are fixed with fasteners, and a relatively hard single-layer material is used, which easily causes the braces to not fit the teeth, and the teeth take a long time to adapt. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems in the prior art that invisible braces use a relatively hard single-layer material, which easily causes the braces to not fit the teeth, and has low comfort and compliance. An invisible brace and a method of using the same are provided, which can improve the fit between the brace and the teeth and improve the comfort and compliance of the brace.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An invisible brace appliance, comprising:

[0008] A dental brace, which is used to provide continuous correction force, the dental brace comprises a hard layer and a soft layer for contacting the teeth, the surface of the soft layer is uneven, and the soft layer and the hard layer are integrally formed;

[0009] The chewing gum stick is used to improve the fit between the braces and the teeth, and the chewing gum stick is adapted to the braces.

[0010] In the present invention, the braces are composed of a hard layer and a soft layer stacked on each other. The correction force generated by the transparent braces is an irregular intermittent gravity. During the orthodontic tooth movement, the ideal correction force should be a continuous light force. The soft layer has strong elasticity and low rigidity, which can reduce the patient's discomfort and pain in the initial stage of correction, enhance patient satisfaction, and thus improve compliance. The hard layer has strong rigidity, low elasticity, and slow stress decay, which provides continuous correction force while providing guidance for tooth movement. When the teeth are derailed, the emergency braces contact the teeth through the inner soft layer with an uneven surface, achieve good wrapping of the teeth, and increase the control force of the teeth. At the same time, the outer hard layer provides a track for the tooth movement, and guides the derailed teeth to the expected position. The chewing gum stick adapted to the braces is used to improve the fit between the braces and the teeth, thereby improving the coordination, comfort, and compliance.

[0011] Preferably, the one-piece forming includes single extrusion and co-extrusion, wherein the single extrusion is to extrude the hard layer and the soft layer separately, and the co-extrusion is to co-extrude the hard layer and the soft layer previously extruded through a smooth roller and a bumpy roller to obtain a membrane coil. The one-piece forming of the hard layer and the soft layer is achieved by first single extrusion and then co-extrusion, and the co-extrusion is to co-extrude the hard layer and the soft layer through a smooth roller and a bumpy roller to obtain a membrane coil.

[0012] Preferably, the single layer thickness of the hard layer and the soft layer is in the range of 0.1-0.6 mm, and the total thickness of the hard layer and the soft layer is in the range of 0.3-1.2 mm. The thickness of the hard layer and the soft layer may be equal or unequal.

[0013] Preferably, the hard layer is made of one or more of PA, PETG, and PC, and the soft layer is made of one or more of TPU, TPE, EVA, and TPV.

[0014] Preferably, the hard layer has a yield elongation greater than 4%, a hardness of 55D-85D, and a bending modulus greater than 500MPa; the soft layer has a hardness of 60A-95A, a tensile strength greater than 25MPa, and an elongation greater than 200%.

[0015] Preferably, a plurality of first protrusions are provided on the inner side of the braces, the chewing gum stick includes chewing gum, a handle and a connecting part, the chewing gum and the handle are connected through the connecting part, the connecting part is fixed on one side of the chewing gum, a hook is provided on the end of the handle away from the chewing gum, a second protrusion is provided on the end of the chewing gum away from the handle, and the second protrusion is adapted to the first protrusion. The chewing gum stick is composed of chewing gum, a handle, a connecting part and a hook, the chewing gum and the connecting part are fixed by snapping, which is convenient for replacing the chewing gum, the first protrusion is provided on the inner side of the braces, and the first protrusion is also provided on the outer edge of the groove, the first protrusion is made of the same material as the hard layer, and is small in size, which has little effect on aesthetics and comfort, the second protrusion is provided on the lower surface of the chewing gum, when chewing the chewing gum, the second protrusion just abuts against the first protrusion, which is convenient for positioning the chewing gum, and the hook on the end of the handle away from the chewing gum is used to remove the braces.

[0016] Preferably, the mouthpiece includes a plurality of grooves for accommodating teeth, and a third protrusion for facilitating positioning is provided between the grooves. When the patient bites the chewing gum by himself, since he cannot see the relative position of the chewing gum and the teeth, he can only rely on his own feeling. The third protrusion between the grooves can radially position the chewing gum, and the first protrusion on the mouthpiece cooperates with the second protrusion on the chewing gum to form axial positioning, which greatly facilitates the positioning of the chewing gum and facilitates the chewing gum to be bitten from one side of the teeth to the other side.

[0017] Preferably, the two ends of the brace are provided with matching parts for convenient hooking. The matching parts at both ends of the brace cooperate with the hook, so that the brace can be pulled in the dislocation direction to be removed from the teeth.

[0018] Preferably, the connecting portion is provided with a threaded hole for installing a screw. The threaded hole on the connecting portion is used to install the screw, thereby connecting the handle and the connecting portion.

[0019] A method for using an invisible brace appliance comprises the following steps:

[0020] S1, wearing braces, each groove of the braces corresponds to each tooth;

[0021] S2, using a chewing gum stick to increase the fit between the braces and the teeth, inserting the chewing gum end of the chewing gum stick into the oral cavity, with the chewing gum between the third protrusions, moving the chewing gum stick along the radial direction of the handle so that the second protrusion on the chewing gum is stuck on the first protrusion on the inner side of the braces to form a position, and then chewing the chewing gum;

[0022] S3, move the chewing gum stick along the radial direction of the handle, bite from one side of the tooth to the other side, and bite each tooth firmly;

[0023] S4, place the hook of the chew stick on the fitting part of the edge of the braces, gently hook it and pull it in the direction of dislocation to remove the braces from the teeth.

[0024] By implementing the above technical solution, after wearing braces, the third protrusions between the grooves radially position the chewing gum, and the second protrusions on the chewing gum are clamped on the first protrusions on the inner side of the braces to form axial positioning, which greatly facilitates the positioning of the chewing gum and facilitates the chewing gum to be bitten from one side of the teeth to the other. When biting the chewing gum, the posterior teeth must cross the occlusal surface and all the tooth tips must be bitten. The chewing gum must be bitten every time the braces are put on, and the chewing gum will age and need to be replaced regularly.

[0025] The present invention has the following beneficial effects: (1) it can improve the compatibility between the braces and teeth, and improve the comfort and compliance of the braces; (2) it is convenient to locate the position of the bite rubber; (3) it is convenient to remove the braces; and (4) it is convenient to replace the bite rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the dental brace of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the chewing gum stick of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the chewing gum stick of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the present invention in a state of removing the braces;

[0030] Figure 5 It is a schematic diagram of the structure of the connection between the hard layer and the soft layer in the present invention;

[0031] Figure 6 It is a schematic diagram of the integral molding of the hard layer and the soft layer in the present invention.

[0032] In the figure: a dental brace 1, a hard layer 1.1, a soft layer 1.2, a chewing stick 2, a chewing rubber 2.1, a handle 2.2, a connecting portion 2.3, a hook 2.4, a threaded hole 2.5, a first protrusion 3, a second protrusion 4, a third protrusion 5, a groove portion 6, and a matching portion 7. DETAILED DESCRIPTION

[0033] The present invention is further described below with reference to the accompanying drawings and examples. Specific embodiment one:

[0035] like Figure 5 or Figure 6As shown, an invisible brace includes a brace 1, and the brace 1 includes a hard layer 1.1 and a soft layer 1.2 for contacting the teeth. The surface of the soft layer 1.2 is uneven. The soft layer 1.2 and the hard layer 1.1 are integrally formed. The integral forming includes separate extrusion and co-extrusion. Separate extrusion is to extrude the hard layer 1.1 and the soft layer 1.2 separately. The co-extrusion is to co-extrude the previously extruded hard layer 1.1 and the soft layer 1.2 through a smooth roller and an uneven roller to obtain a membrane coil. The single layer thickness of the hard layer 1.1 and the soft layer 1.2 ranges from 0.1 to 0.6 mm, and the total thickness of the hard layer 1.1 and the soft layer 1.2 ranges from 0.3 to 1.2 mm. The hard layer 1.1 is prepared by one or more of PA, PETG, and PC, and the soft layer 1.2 is prepared by one or more of TPU, TPE, EVA, and TPV. The yield elongation of the hard layer 1.1 is greater than 4%, the hardness is 55D-85D, and the bending modulus is greater than 500MPa; the hardness of the soft layer 1.2 is 60A-95A, the tensile strength is greater than 25MPa, and the elongation is greater than 200%.

[0036] In the above technical solution, the braces 1 are composed of a hard layer 1.1 and a soft layer 1.2 stacked on each other. The correction force generated by the transparent braces is an irregular intermittent gravity. During the orthodontic tooth movement, the ideal correction force should be a continuous light force. The soft layer 1.2 has strong elasticity and low rigidity, which can reduce the patient's discomfort and pain in the initial stage of correction, enhance patient satisfaction, and thus improve compliance. The hard layer 1.1 has strong rigidity, low elasticity, and slow stress decay, which provides continuous correction force while providing guidance for tooth movement. When a tooth is derailed, the first aid mouth guard contacts the tooth through the inner soft layer with an uneven surface, achieving good wrapping of the tooth and increasing the control of the tooth. At the same time, the outer hard layer provides a track for the tooth to move, guiding the derailed tooth to the expected position, thereby improving the fit, comfort and compliance. The hard layer 1.1 and the soft layer 1.2 are integrally formed by first extruding separately and then co-extruding. Co-extrusion is to co-extrude the hard layer 1.1 and the soft layer 1.2 through a smooth roller and an uneven roller to obtain a membrane coil. The thickness of the hard layer 1.1 and the soft layer 1.2 can be equal or unequal. Specific embodiment 2:

[0038] like Figure 1 or Figure 2 or Figure 3 or Figure 4As shown, on the basis of the first embodiment, a chewing gum stick 2 is further included, and the chewing gum stick 2 is adapted to the braces 1. A plurality of first protrusions 3 are provided on the inner side of the braces 1, and the chewing gum stick 2 includes a chewing gum 2.1, a handle 2.2 and a connecting portion 2.3, the chewing gum 2.1 and the handle 2.2 are connected by the connecting portion 2.3, the connecting portion 2.3 is clamped and fixed on one side of the chewing gum 2.1, a hook 2.4 is provided on the end of the handle 2.2 away from the chewing gum 2.1, and a second protrusion 4 is provided on the end of the chewing gum 2.1 away from the handle 2.2, and the second protrusion 4 is adapted to the first protrusion 3. The braces 1 includes a plurality of grooves 6 for accommodating teeth, and a third protrusion 5 for convenient positioning is provided between the grooves 6. A matching portion 7 for facilitating the hooking of the hook 2.4 is provided at both ends of the braces 1. A threaded hole 2.5 for installing a screw is provided on the connecting portion 2.3.

[0039] In the above technical solution, the chewing gum stick 2 adapted to the braces 1 is used to improve the fit between the braces 1 and the teeth. The chewing gum stick 2 is composed of chewing gum 2.1, a handle 2.2, a connecting portion 2.3 and a hook 2.4. The chewing gum 2.1 is fixedly connected to the connecting portion 2.3, which is convenient for the replacement of the chewing gum 2.1. The first protrusion 3 is arranged on the inner side of the braces 1, and the first protrusion 3 is also arranged on the outer edge of the groove 6. The first protrusion 3 is made of the same material as the hard layer 1.1, and is small in size, which has little effect on the aesthetics and comfort. The second protrusion 4 is arranged on the lower surface of the chewing gum. When chewing the chewing gum, the second protrusion 4 just abuts against the first protrusion 3, which is convenient for positioning the chewing gum. The hook 2.4 at the end of the handle 2.2 away from the chewing gum 2.1 is used to take off the braces 1. When the patient bites the chewing gum by himself, he cannot see the relative position of the chewing gum and the teeth, so he can only rely on his own feeling. The third protrusion 5 between the grooves 6 can radially position the chewing gum, and the first protrusion 3 on the mouthpiece 1 cooperates with the second protrusion 4 on the chewing gum 2.1 to form axial positioning, which greatly facilitates the positioning of the chewing gum 2.1 and facilitates the chewing gum 2.1 to bite from one side of the teeth to the other side. The matching parts 7 at both ends of the mouthpiece 1 cooperate with the curved hooks 2.4, which are convenient for hooking and pulling in the dislocation direction, so that the mouthpiece 1 can be removed from the teeth. The threaded hole 2.5 on the connecting part 2.3 is used to install screws, thereby connecting the handle 2.2 and the connecting part 2.3. Specific embodiment three:

[0041] This embodiment provides a method for using an invisible brace appliance. Figure 1 or Figure 2 or Figure 3 or Figure 4 or Figure 5 or Figure 6 , including the following steps:

[0042] S1, wearing the braces, each groove 6 of the braces 1 corresponds to each tooth one by one;

[0043] S2, using the chewing gum stick 2 to increase the fit between the braces 1 and the teeth, inserting one end of the chewing gum 2.1 of the chewing gum stick 2 into the oral cavity, with the chewing gum 2.1 between the third protrusions 5, moving the chewing gum stick 2 along the radial direction of the handle 2.2, so that the second protrusion 4 on the chewing gum 2.1 is stuck on the first protrusion 3 on the inner side of the braces 1 to form a position, and then chewing the chewing gum 2.1;

[0044] S3, move the chewing gum stick 2 along the radial direction of the handle, bite from one side of the teeth to the other side, and bite each tooth firmly;

[0045] S4, use the hook 2.4 of the chewing stick 2 to place it on the matching part 7 on the edge of the brace 1, gently hook it and pull it in the dislocation direction, so that the brace 1 can be removed from the tooth.

[0046] In the above technical solution, after wearing the braces, the third protrusion 5 between the grooves 6 radially positions the chewing gum, and the second protrusion 4 on the chewing gum 2.1 is clamped on the first protrusion 3 on the inner side of the braces 1 to form axial positioning, which greatly facilitates the positioning of the chewing gum and facilitates the chewing gum to be bitten from one side of the teeth to the other side. When biting the chewing gum, the posterior teeth must cross the occlusal surface and all the tooth tips must be bitten. Every time the braces 1 are put on, the chewing gum 2.1 must be bitten, and the chewing gum 2.1 will age and need to be replaced regularly.

[0047] The present invention has the following beneficial effects: it can improve the compatibility between the orthodontic appliance and the teeth, improve the comfort and compliance of the orthodontic appliance, facilitate the positioning of the bite rubber, facilitate the removal of the braces, and facilitate the replacement of the bite rubber.

Claims

1. An invisible brace appliance, characterized in that: include: A dental brace, which is used to provide continuous correction force, the dental brace comprises a hard layer and a soft layer for contacting the teeth, the surface of the soft layer is uneven, and the soft layer and the hard layer are integrally formed; the dental brace comprises a plurality of grooves for accommodating the teeth, and a third protrusion is provided between the grooves for convenient positioning; A chewing gum stick is used to improve the fit between braces and teeth. The chewing gum stick is adapted to the braces, and a plurality of first protrusions are provided on the inner side of the braces. The chewing gum stick comprises a chewing gum, a handle and a connecting portion. The chewing gum and the handle are connected through the connecting portion, and the connecting portion is clamped and fixed on one side of the chewing gum. A second protrusion that can be adapted and clamped with the first protrusion is provided on the end of the chewing gum away from the handle.

2. The invisible brace appliance according to claim 1, characterized in that: The one-piece molding includes single extrusion and co-extrusion. The single extrusion is to extrude the hard layer and the soft layer separately. The co-extrusion is to extrude the hard layer and the soft layer extruded previously through a smooth roller and an uneven roller to obtain a membrane coil.

3. The invisible brace appliance according to claim 2, characterized in that: The single layer thickness of the hard layer and the soft layer is in the range of 0.1-0.6 mm, and the total thickness of the hard layer and the soft layer is in the range of 0.3-1.2 mm.

4. An invisible brace appliance according to claim 1, 2 or 3, characterized in that: The hard layer is prepared from one or more materials selected from PA, PETG, and PC, and the soft layer is prepared from one or more materials selected from TPU, TPE, EVA, and TPV.

5. An invisible brace appliance according to claim 1, 2 or 3, characterized in that: The hard layer has a yield elongation greater than 4%, a hardness of 55D-85D, and a bending modulus greater than 500MPa; the soft layer has a hardness of 60A-95A, a tensile strength greater than 25MPa, and an elongation greater than 200%.

6. The invisible brace appliance according to claim 1, characterized in that: A curved hook is arranged on one end of the handle away from the chewing gum.

7. The invisible brace appliance according to claim 6, characterized in that: Both ends of the dental brace are provided with matching parts for facilitating hooking of the curved hook.

8. An invisible brace appliance according to claim 6 or 7, characterized in that: The connecting portion is provided with a threaded hole for installing a screw.

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