Occlusal splint and method for preparing same

Abstract

Provided are an occlusal splint (2) and a method for preparing same. The occlusal splint (2) comprises n single-bag units, wherein each single-bag unit comprises a bag cavity, a bag housing, and a filling material contained in the bag cavity, n is an integer of ≥2, the n single-bag units are connected to each other, and the n single-bag units are not in communication with each other. Alternatively, the occlusal splint (2) comprises a bag (3), wherein the bag (3) comprises a bag housing, a bag cavity, and a filling material contained in the bag cavity, and the occlusal splint (2) is in contact with an appliance (1) and does not cover the incisor area. In the first aspect, the occlusal splint (2) can achieve dynamic adjustment of occlusion and adapt to the tooth morphology of a patient, thereby making the occlusal shaping more accurate and comfortable and reducing tooth abrasion. The bag cavity of each single-bag unit can be filled with different filling materials, such that the occlusal force can be better balanced and distributed, and the bag cavity can also be used as a multifunctional carrier. In the second aspect, the occlusal splint (2) can effectively improve the occlusal stability, and is made of a softer material.

Description

Jaw pad and preparation method thereof

[0001] This application claims priority to Chinese Patent Application No. 202311583698X, filed on November 24, 2023, entitled “A Jaw Pad and Method for Preparing the Same,” and No. 2023115836994, filed on November 24, 2023, entitled “A Jaw Pad and Method for Preparing the Same.” This application incorporates the entirety of the aforementioned Chinese Patent Applications. Technical Field

[0002] The invention relates to a jaw pad and a preparation method thereof. Background Art

[0003] During orthodontic treatment, some patients need to use jaw pads to open their bite and release the jaw lock before they can undergo subsequent orthodontic treatment due to clinical symptoms such as deep overbite and lockjaw. Current jaw pad products include resin jaw pads bonded to the teeth, cavitary jaw pads integrally formed with invisible braces, and solid jaw pads bonded to invisible braces. Existing jaw pad products have a fixed height and a fixed design position. However, during orthodontic treatment, the teeth are in a dynamic movement process, and the fixed jaw pad design often cannot meet the clinical precision requirements after a period of use. For resin jaw pads bonded to the teeth, doctors can only reduce the height of the jaw pads by manual grinding, which brings an inconvenient clinical experience to both doctors and patients. At the same time, the shapes of existing jaw pads are mostly simple smooth planes or simply designed virtual occlusal structures, which are quite different from the actual occlusal pits and fissures of the teeth. Therefore, there are many problems such as inaccurate occlusion, discomfort, and instability. Summary of the Invention

[0004] In order to overcome the defects of the existing jaw pads such as inaccurate occlusion, discomfort and instability, the present invention adopts the following technical solutions.

[0005] In a first aspect of the present invention, the present invention provides a jaw pad comprising n single-cyst units, wherein the single-cyst units comprise a cyst-shaped cavity, a cyst-shaped shell, and a filling material filled in the cyst-shaped cavity, wherein n is an integer, and n≥2; the n single-cyst units are interconnected, and the n single-cyst units are not connected to each other.

[0006] By attaching the jaw pad of this invention to the orthodontic appliance, dynamic occlusal adjustment is achieved, adapting to the patient's tooth morphology. This allows for more precise and comfortable occlusal shaping, improving comfort and reducing tooth wear. The sac-like cavity of each single-sac unit can be filled with different filling materials, which not only better distributes bite forces but also serves as a multifunctional carrier to open the bite. By optimizing the single-sac structure to a multi-sac structure, the filling material hardness achieves a more stable occlusal surface morphology.

[0007] In the present invention, the n single-capsule units may be filled with the same or different filling materials, preferably with different filling materials.

[0008] In the present invention, the heights of the n capsules may be uniform or non-uniform, preferably non-uniform.

[0009] The distribution of the non-uniform height can be selected according to actual conditions, and is preferably a gradient height distribution, for example, low in the middle and high around, or high in the middle and low around.

[0010] In a specific embodiment of the present invention, the heights of the n sacs are distributed in the following order: the sac located at the tooth cusp is higher, and the other sacs are lower.

[0011] In the present invention, the side of the single capsule unit in contact with the appliance is adapted to the planed shape of the bottom surface of the tooth.

[0012] In the present invention, the shape of the jaw pad can be a three-dimensional grid, a three-dimensional spider web, a three-dimensional tunnel or a three-dimensional spiral.

[0013] The cross-sectional shape of the single capsule unit is preferably polygonal, more preferably triangular, quadrilateral or hexagonal, for example, quadrilateral.

[0014] In the present invention, the jaw pad can be set on one or both sides of the posterior tooth area of ​​the orthodontic appliance when in use, for opening the occlusion of the posterior tooth area, wherein the posterior tooth area includes molars and canines but does not include incisors.

[0015] Preferably, the jaw pad is arranged on the surface of the posterior teeth area on at least one side of the orthodontic appliance close to the opposing jaw. By introducing a flexible jaw pad on the jaw surface of the posterior teeth area on at least one side of the orthodontic appliance, the occlusal surface is adapted and the function of opening the bite is satisfied at the same time.

[0016] The posterior teeth may include the first premolar, the second premolar, the first molar and the second molar, namely teeth No. 4 to No. 7.

[0017] In the present invention, the side of the jaw pad that contacts the appliance is adapted to the anatomical shape or planar shape of the bottom surface of the teeth.

[0018] In the present invention, the height of the jaw pad may be 2-10 mm, for example, 4 mm, 6 mm or 8 mm.

[0019] In the present invention, the elongation at break of the material of the capsule-shaped shell is 30-1500%, preferably 350-940%.

[0020] In the present invention, the hardness of the material of the sac-shaped shell is 30-95A, preferably 42-85A.

[0021] In the present invention, the wall thickness of the sac-shaped shell may be 0.5-2 mm, preferably 0.5-0.8 mm.

[0022] In the present invention, the aspect ratio of the sac-shaped shell may be 1:(0-9). The aspect ratio of the sac-shaped shell refers to the wall thickness of the sac-shaped shell: (height of the jaw pad-wall thickness of the sac-shaped shell).

[0023] In the present invention, the water absorption rate of the material of the sac-shaped shell is 0.05%-150%;

[0024] Preferably, the water absorption rate of the sac-like shell material is 0.05%-5%, preferably 0.05%-2%, more preferably 0.05%-1%, for example 0.1% or 0.5%, where the percentage is the percentage of the increase in mass of the sac-like shell after water absorption compared to the mass of the sac-like shell before water absorption. When the sac-like shell material has a low water absorption rate, the material has no swelling pores or has small diameter swelling pores. During occlusion, the filling material remains within the sac-like cavity of the jaw pad, providing stronger support and better balancing the bite force.

[0025] Preferably, the water absorption rate of the material of the sac-like shell is 5%-150%, preferably 5%-90%, more preferably 10%-60%, where the percentage is the percentage of the mass increase of the sac-like shell after water absorption to the mass of the sac-like shell before water absorption. When the material of the sac-like shell has a high water absorption rate, the material contains a certain amount of swelling through-holes, which can meet the sustained release function. For example, when the filling material is rose flavor essence, the rose flavor can be slowly released through the swelling through-holes to achieve the effect of lasting fresh breath. The water absorption rate of the material of the sac-like shell is measured as follows: at 23°C, the material is completely immersed in water for 24 hours, the mass of the material before and after is tested, and the water absorption rate is calculated according to the following formula:

[0026] In the present invention, the material of the sac-shaped shell can be silicone rubber, thermoplastic elastomer or thermoplastic plastic.

[0027] In the present invention, the functions of the sac-like cavity include but are not limited to being used for connecting a catheter, for pre-storing a residual amount of functional filling liquid, and for sustained release of the functional liquid.

[0028] In the present invention, the filling amount of the filling material can be selected according to actual conditions, and the filling amount of the filling material must satisfy the following requirements: the height of the jaw pad after filling can meet the requirement of opening the bite.

[0029] In the present invention, the sac-shaped shell is elastic. When the volume of the filling material filled is less than or equal to the volume of the sac-shaped cavity, that is, the filling amount of the filling material is less than or equal to 100%, the sac-shaped cavity does not deform. When the volume of the filling material filled is greater than the volume of the sac-shaped cavity, that is, the filling amount of the filling material is greater than 100%, the sac-shaped shell deforms, and the volume of the deformed sac-shaped cavity is greater than the initial volume of the sac-shaped cavity. In the present invention, the filling amount of the filling material can be 0 or greater, preferably 10%-200%, and more preferably 100-130%, where the percentage is the percentage of the volume of the filling material to the initial volume of the sac-shaped cavity.

[0030] In the present invention, the filling material may be one or more of liquid, gas, phase change material and non-Newtonian fluid.

[0031] The liquid may be water or a solution containing a functional agent. The functional agent in the solution containing the functional agent preferably includes one or more of a fragrance, an indicator and a medicine.

[0032] The aromatic agent is preferably an essence, and the essence is, for example, strawberry flavor essence and / or rose flavor essence.

[0033] Wherein, the indicator is preferably a saliva indicator.

[0034] The drug is preferably an anti-caries drug and / or a drug for treating periodontitis.

[0035] The gas may be one or more of air, nitrogen, carbon dioxide and oxygen, for example, air.

[0036] The phase change material may be a material that is liquid at room temperature and solid near body temperature, preferably a phase change wax. The phase change material may be placed at the tooth cusp where the bite strength is high to neutralize the bite strength.

[0037] The non-Newtonian fluid is a shear-thickening substance, typically a material system that hardens upon application of an impact energy greater than 2N, and preferably comprises one or more of agar, concentrated sugar water, and apple pulp. When the non-Newtonian fluid is filled in the sac-like cavity, the bite force exerted by the teeth causes it to thicken and increase its hardness, thereby better neutralizing the bite force.

[0038] In a preferred embodiment of the present invention, the filling material can be filled according to the following rule: the mandibular tooth cusp is filled with a filling material with a larger hardness, and the mandibular tooth fossa is filled with a filling material with a smaller hardness.

[0039] In the above preferred embodiment, the filling material with relatively high hardness is, for example, a non-Newtonian fluid.

[0040] In the above preferred embodiment, the filling material with relatively low hardness is, for example, water.

[0041] In the present invention, the jaw pad can be fixed to the orthodontic appliance by conventional methods in the art, preferably by bonding, plugging, snapping, welding or embedding.

[0042] The bonding is performed by, for example, using glue to bond the jaw pad and the appliance.

[0043] The welding is performed by, for example, using a laser to weld the jaw pad and the orthodontic appliance.

[0044] The insertion is for example to fix the jaw pad to the orthodontic appliance with a rod-shaped attachment by means of sleeve-type side wings. The rod-shaped attachment and the orthodontic appliance can be bonded with glue.

[0045] The buckling is, for example, to buckle the jaw pad to the appliance with a buckle-shaped attachment through a side wing with holes. The buckle-shaped attachment and the appliance can be bonded with glue.

[0046] When the jaw pad is fixed to the brace appliance by embedding, the brace appliance is provided with a cavity for accommodating the jaw pad, and the jaw pad is disposed within the cavity. When the jaw pad is disposed within the cavity, it expands after absorbing water, causing its volume to increase. The expanded jaw pad fits more closely with the inner wall of the brace appliance cavity, allowing the brace appliance to be more firmly fixed to the jaw pad and providing stronger support during occlusion, thereby better balancing the bite force.

[0047] In the present invention, the brace is a dental device that can be used to correct dental and maxillofacial deformities. Its function is to adjust the position of the teeth and jaw by applying appropriate pressure and force to correct various problems such as jaw crookedness, crowded teeth, uneven teeth, and poor bite.

[0048] In some preferred embodiments of the present invention, the braces are invisible braces. These are typically formed by heating and softening a transparent heat-pressed film and then applying a certain mechanical force or pressure to a desired mold. The heat-pressed film is typically made of a thermoplastic polymer. These invisible braces, also known as invisible braces, are generally removable from the mouth and can be removed and put on by the patient.

[0049] In a specific embodiment of the present invention, the material of the sac-shaped shell is thermoplastic elastomer, the filling material is water, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 2 mm.

[0050] In a specific embodiment of the present invention, the material of the sac-shaped shell is thermoplastic elastomer, the filling material is water and strawberry flavor essence, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 4 mm.

[0051] In a specific embodiment of the present invention, the material of the sac-shaped shell is thermoplastic elastomer, the filling material is agar, phase change wax, rose essence and water, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 6 mm.

[0052] In a specific embodiment of the present invention, the material of the capsule shell is thermoplastic elastomer, the filling material is agar, phase change wax, anti-caries drug and water, the shape of the jaw pad is a three-dimensional tunnel, and the height of the jaw pad is 10 mm.

[0053] In a specific embodiment of the present invention, the material of the sac-shaped shell is thermoplastic elastomer, the filling material is agar, phase change wax, periodontitis treatment drug and water, the shape of the jaw pad is three-dimensional spiral, and the height of the jaw pad is 10 mm.

[0054] The present invention also provides a method for preparing the jaw pad as described above, comprising the following steps: filling the filling material into the sac-shaped cavity in each of the single-sac units and then sealing the cavity to obtain the jaw pad.

[0055] In the present invention, the capsule-shaped shell can be manufactured by conventional methods in the art, preferably including injection molding, injection molding, vacuum molding or additive manufacturing.

[0056] In the present invention, the jaw pad can be manufactured by an integrated molding method using a vacuum molding mold or an injection molding mold.

[0057] In the present invention, the filling method can be injection, pre-embedding or gas compression.

[0058] In the present invention, the filling equipment can be conventional equipment in the art, preferably a filling machine.

[0059] In the present invention, the sealing method may be a conventional method in the art, preferably heat sealing, welding or gluing.

[0060] The heat sealing method may be a conventional method in the art, preferably high-frequency heat sealing, which is also called high-frequency heat sealing, and generally refers to heat sealing using electromagnetic waves with a frequency greater than 100Khz.

[0061] The heat sealing device may be conventional equipment in the art, preferably a radio frequency electronic heat sealing machine.

[0062] In a second aspect of the present invention, the present invention provides a jaw pad comprising a capsule, wherein the capsule comprises a capsule-shaped shell, a capsule-shaped cavity and a filling material filled in the capsule-shaped cavity; the capsule contacts the orthodontic appliance and does not cover the incisor area.

[0063] The jaw pad of the present invention can realize dynamic occlusal adjustment, adapt to the patient's tooth shape, and make the occlusal shaping more precise and comfortable, which can effectively improve the occlusal stability. The material is softer, which improves comfort and reduces tooth wear.

[0064] In the present invention, the jaw pad can be set on one or both sides of the posterior tooth area of ​​the orthodontic appliance when in use, for opening the occlusion of the posterior tooth area, wherein the posterior tooth area includes molars and canines but does not include incisors.

[0065] Preferably, the jaw pad is arranged on the surface of the posterior teeth area on at least one side of the orthodontic appliance close to the opposing jaw. By introducing a flexible jaw pad on the jaw surface of the posterior teeth area on at least one side of the orthodontic appliance, the occlusal surface is adapted and the function of opening the bite is satisfied at the same time.

[0066] Preferably, the molars may include first premolars, second premolars, first molars and second molars, ie teeth No. 4 to 7.

[0067] In the present invention, the side of the jaw pad that contacts the appliance can be adapted to the anatomical shape or planar shape of the bottom surface of the teeth.

[0068] In the present invention, the height of the jaw pad may be 2-10 mm, for example, 4 mm, 6 mm or 8 mm.

[0069] In the present invention, the elongation at break of the material of the sac-shaped shell may be 30-1500%, preferably 350-940%, for example 370% or 650%.

[0070] In the present invention, the hardness of the material of the sac-shaped shell may be 30-95A, preferably 42-85A, for example 62A or 70A.

[0071] In the present invention, the thickness of the capsule-shaped shell may be 0.5-2 mm, preferably 0.5-0.8 mm, for example, 700 μm.

[0072] In the present invention, the aspect ratio of the sac-shaped shell may be 1:(0.1-9). The aspect ratio of the sac-shaped shell refers to the wall thickness of the sac-shaped shell: (height of the jaw pad-wall thickness of the sac-shaped shell).

[0073] In the present invention, the water absorption rate of the material of the sac-shaped shell can be 0.05%-150%.

[0074] Preferably, the water absorption rate of the sac-like shell material is 0.05%-5%, preferably 0.05%-2%, more preferably 0.05%-1%, for example 0.1% or 0.5%, where the percentage is the percentage of the increase in mass of the sac-like shell after water absorption compared to the mass of the sac-like shell before water absorption. When the sac-like shell material has a low water absorption rate, the material has no swelling pores or has small diameter swelling pores. During occlusion, the filling material remains within the sac-like cavity of the jaw pad, providing stronger support and better balancing the bite force.

[0075] Preferably, the water absorption rate of the sac shell material is 5%-150%, more preferably 5%-90%, and more preferably 10%-60%, where the percentage is the percentage of the increase in mass of the sac shell after water absorption compared to the mass of the sac shell before water absorption. The sac shell material has a high water absorption rate and contains a certain number of swellable through-holes, which can provide a sustained release function. For example, when the filling material is rose-flavored essence, the rose essence can be slowly released through the swellable through-holes, achieving a long-lasting fresh breath effect.

[0076] The water absorption rate of the material of the sac-shaped shell is measured as follows: the material is completely immersed in water at 23°C for 24 hours, and the mass of the material before and after is tested. The water absorption rate is calculated according to the following formula:

[0077] In the present invention, the material of the sac-shaped shell can be silicone rubber, thermoplastic elastomer or thermoplastic plastic.

[0078] In the present invention, the functions of the sac-like cavity include but are not limited to being used for connecting a catheter, for pre-storing a residual amount of functional filling liquid, and for sustained release of the functional liquid.

[0079] In the present invention, the filling material may include one or more of liquid, gas, phase change material and non-Newtonian fluid.

[0080] The liquid may include water and / or a solution containing a functional agent.

[0081] The functional agent in the solution containing the functional agent preferably includes one or more of a fragrance, an indicator and a medicine.

[0082] Wherein, the aromatic agent is preferably essence, and the essence is preferably strawberry flavor essence and / or rose flavor essence.

[0083] Wherein, the indicator is preferably a saliva indicator.

[0084] The drug is preferably an anti-caries drug and / or a drug for treating periodontitis. The gas may include one or more of air, nitrogen, carbon dioxide and oxygen, such as air.

[0085] The phase change material may be a material that is liquid at room temperature and solid at body temperature, and is preferably a phase change wax.

[0086] The non-Newtonian fluid is a shear-thickening substance, typically a material system that hardens upon application of an impact force greater than 2N, and preferably comprises one or more of agar, concentrated sugar water, and apple pulp. When the non-Newtonian fluid is filled in the sac-like cavity, the bite force applied by the teeth causes it to thicken and increase its hardness, thereby better neutralizing the bite force.

[0087] In the present invention, when the jaw pad includes at least two sacs, the jaw pad may further include a conduit connecting the at least two sacs. The conduit connects the independent sacs. When biting, the filling material in the sac-like cavity can be squeezed into the conduit, which helps to increase the adaptability of the jaw pad and balance the bite force.

[0088] The cross-sectional shape of the conduit is preferably circular, elliptical, square, trapezoidal or triangular.

[0089] Wherein, the inner diameter of the catheter is preferably 0.05-5 mm.

[0090] Wherein, the wall thickness of the conduit is preferably 0.02-2 mm.

[0091] Preferably, the catheter is wholly or partially retractable or non-retractable.

[0092] In the present invention, the filling amount of the filling material can be selected according to actual conditions. When the jaw pad does not include a catheter, the filling amount of the filling material must meet the following requirements: the height of the jaw pad after filling can meet the amount required for opening the bite; when the jaw pad includes a catheter, the filling amount of the filling material must meet the following requirements: the height of the jaw pad after filling can meet the amount required for opening the bite and the required occupancy of the catheter.

[0093] In the present invention, the sac-shaped shell is elastic. When the volume of the filling material filled is less than or equal to the volume of the sac-shaped cavity, that is, the filling amount of the filling material is less than or equal to 100%, the sac-shaped cavity does not deform. When the volume of the filling material filled is greater than the volume of the sac-shaped cavity, that is, the filling amount of the filling material is greater than 100%, the sac-shaped shell deforms, and the volume of the deformed sac-shaped cavity is greater than the initial volume of the sac-shaped cavity. In the present invention, the filling amount of the filling material can be 0 or greater, preferably 10%-200%, and more preferably 100-130%, where the percentage is the percentage of the volume of the filling material to the initial volume of the sac-shaped cavity.

[0094] In the present invention, when the jaw pad includes the conduit, the conduit may be filled with the aforementioned filling material, and the filling amount of the filling material is preferably 0-100%, where the percentage is the percentage of the volume of the filling material to the volume of the conduit.

[0095] In the present invention, the jaw pad can be fixed to the orthodontic appliance by conventional methods in the art, preferably by bonding, plugging, snapping, welding or embedding.

[0096] The bonding is performed by, for example, using glue to bond the jaw pad and the appliance.

[0097] The welding is performed by, for example, using a laser to weld the jaw pad and the orthodontic appliance.

[0098] The insertion is for example to fix the jaw pad to the orthodontic appliance with a rod-shaped attachment by means of sleeve-type side wings. The rod-shaped attachment and the orthodontic appliance can be bonded with glue.

[0099] The buckling is, for example, to buckle the jaw pad to the appliance with a buckle-shaped attachment through a side wing with holes. The buckle-shaped attachment and the appliance can be bonded with glue.

[0100] When the jaw pad is fixed to the brace appliance by embedding, the brace appliance is provided with a cavity for accommodating the jaw pad, and the jaw pad is disposed within the cavity. When the jaw pad is disposed within the cavity, it expands after absorbing water, causing its volume to increase. The expanded jaw pad fits more closely with the inner wall of the brace appliance cavity, allowing the brace appliance to be more firmly fixed to the jaw pad and providing stronger support during occlusion, thereby better balancing the bite force.

[0101] In the present invention, the brace is a dental device that can be used to correct dental and maxillofacial deformities. Its function is to adjust the position of the teeth and jaw by applying appropriate pressure and force to correct various problems such as jaw crookedness, crowded teeth, uneven teeth, and poor bite.

[0102] In some preferred embodiments of the present invention, the braces are invisible braces. These are typically formed by heating and softening a transparent heat-pressed film and then applying a certain mechanical force or pressure to a desired mold. The heat-pressed film is typically made of a thermoplastic polymer. These invisible braces, also known as invisible braces, are generally removable from the mouth and can be removed and put on by the patient.

[0103] In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 85A, the water absorption rate of the material of the sac-shaped shell is 2.15%, the height of the jaw pad is 2 mm, the wall thickness of the sac-shaped shell is 0.5 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 1:2.

[0104] In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 42A, the water absorption rate of the material of the sac-shaped shell is 0.05%, the height of the jaw pad is 2 mm, the wall thickness of the sac-shaped shell is 1 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 1:1.

[0105] In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 1.5%, the height of the jaw pad is 2 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:2.3.

[0106] In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 0.2%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3.

[0107] In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 60%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3.

[0108] In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 70%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3.

[0109] In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 70%, the height of the jaw pad is 6 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:2.3.

[0110] The present invention also provides a method for preparing the jaw pad as described above, which comprises the following steps: filling the sac-shaped cavity with the filling material and then sealing the cavity to obtain the jaw pad.

[0111] In the present invention, the capsule-shaped shell can be manufactured by conventional methods in the art, preferably including injection molding, injection molding, vacuum molding or additive manufacturing.

[0112] In the present invention, the filling method can be injection, pre-embedding or gas compression.

[0113] In the present invention, the filling equipment can be conventional equipment in the art, preferably a filling machine.

[0114] In the present invention, the jaw pad includes a catheter, which can be prepared by conventional methods in the art, preferably by injection molding, injection molding, vacuum molding or additive manufacturing.

[0115] In the present invention, the jaw pad includes a conduit, and the conduit and the jaw pad can be connected by a conventional connection method in the art, preferably by welding.

[0116] Wherein, the welding equipment is preferably a heat-bonding machine.

[0117] In the present invention, the sealing method may be a conventional method in the art, preferably heat sealing, welding or gluing.

[0118] The heat sealing method may be a conventional method in the art, preferably high-frequency heat sealing, which is also called high-frequency heat sealing, and generally refers to heat sealing using electromagnetic waves with a frequency greater than 100 kHz.

[0119] The heat sealing device may be conventional equipment in the art, preferably a radio frequency electronic heat sealing machine.

[0120] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0121] The reagents and raw materials used in the present invention are commercially available.

[0122] The positive progress effect of the present invention is:

[0123] Firstly, the jaw pad of the present invention can achieve dynamic adjustment of occlusion. The jaw pad of the present invention has an adaptive function and can be used in orthodontic treatment to open the bite or release the locked jaw. The interior of the jaw pad is composed of fluid and can be shaped accordingly under stress. When placed in the posterior area of ​​the jaw, the jaw pad automatically shapes according to the shape of the occlusal surface during occlusion, and is precisely fixed. The lifting height of the occlusion is also dynamically adjusted as the occlusal situation changes. When the jaw pad is placed on both the left and right sides, the fluids on the left and right sides can be connected through a catheter to balance the occlusal forces on the left and right sides.

[0124] Secondly, the jaw pad of the present invention can achieve dynamic adjustment of occlusion, adapt to the patient's tooth shape, and make the occlusion more precise and comfortable. The material is softer, which improves comfort and reduces tooth wear. The sac-like cavity of each single-capsule unit can be filled with different filling materials, which can not only better balance the distribution of occlusal force, but also serve as a multifunctional carrier. The jaw pad of the present application has multiple single-capsule units. Compared with the structure containing only one single-capsule unit, when a single-capsule unit fails, the jaw pad can still maintain the advantage of not losing the overall function. The height of each single-capsule unit is adjustable. When the whole is in an "egg-shaped" shape with a high center and low surroundings, it can match the middle pits and grooves of the posterior teeth and the surrounding cusps. BRIEF DESCRIPTION OF THE DRAWINGS

[0125] Figure 1 a is a top view of the jaw pad mold of Example 1, and Figure 1 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 1.

[0126] Figure 2 a is a top view of the jaw pad mold of Example 2, and Figure 2 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 2.

[0127] Figure 3 a is a top view of the jaw pad mold of Example 3, and Figure 3 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 3.

[0128] Figure 4 a is a top view of the jaw pad molds of Example 4 and Example 5, and Figure 4 b is a schematic diagram of the three-dimensional structure of the jaw pad molds of Example 4 and Example 5.

[0129] Figure 5 a is a top view of the jaw pad mold of Example 6, and Figure 5 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 6.

[0130] Figure 6 a is a top view of the jaw pad mold of Example 7, and Figure 6 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 7.

[0131] Figure 7 a is a top view of the jaw pad mold of Example 8, and Figure 7 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 8.

[0132] FIG8 is a three-dimensional structural diagram of the orthodontic appliance using an angel buckle to connect the jaw pad.

[0133] FIG9 is a right side view of the structural disassembly diagram of the orthodontic appliance in FIG8 .

[0134] FIG10 is a left side view of the structural disassembly diagram of the orthodontic appliance in FIG8 .

[0135] Figure 11a is a top view of the braces in Figure 8; Figure 11b is a front view of the braces in Figure 8; and Figure 11c is a left view of the braces in Figure 8.

[0136] FIG12 is a three-dimensional structural diagram of the orthodontic appliance using laser welding to install the jaw pad.

[0137] FIG13 is a schematic diagram of the structural disassembly of the orthodontic appliance in FIG12 .

[0138] Figure 14a is a top view of the braces in Figure 12; Figure 14b is a front view of the braces in Figure 12; and Figure 14c is a left view of the braces in Figure 12.

[0139] FIG15 is a three-dimensional structural diagram of an orthodontic appliance using sleeve-type side wings connected to a jaw pad.

[0140] FIG16 is a front view of a schematic diagram of the structural disassembly of the orthodontic appliance in FIG15 .

[0141] FIG17 is a top view of the structural disassembly diagram of the orthodontic appliance in FIG15 .

[0142] Figure 18a is a top view of the braces in Figure 15; Figure 18b is a front view of the braces in Figure 15; and Figure 18c is a left view of the braces in Figure 15.

[0143] Reference numerals: 1: appliance, 2: jaw pad, 3: capsule, 4: side wings, 5: button-like attachment, 6: rod-like attachment.

[0144] Figure 19 is a top view of the orthodontic appliance prepared in Example 10.

[0145] Figure 20 is a rear view of the orthodontic appliance prepared in Example 10.

[0146] Figure 21 is a front view of the orthodontic appliance prepared in Example 10.

[0147] Figure 22 is a side view of the orthodontic appliance prepared in Example 10.

[0148] Figure 23 is a top view of the jaw pad structure schematic diagram of the orthodontic appliance prepared in Example 10.

[0149] Figure 24 is a rear view of the jaw pad structure schematic diagram of the orthodontic device prepared in Example 10.

[0150] Figure 25 is a disassembled diagram of the jaw pad structure of the orthodontic appliance obtained in Example 10.

[0151] Figure 26 is a top view of the bilateral jaw pad structure containing catheters in the orthodontic appliance prepared in Example 11.

[0152] Figure 27 is a side view of the bilateral jaw pad structure containing catheters in the orthodontic appliance prepared in Example 11.

[0153] Figure 28 is a front view of the bilateral jaw pad structure containing catheters in the orthodontic appliance made in Example 11.

[0154] Figure 29 is a three-dimensional structural diagram of the bilateral jaw pad containing the catheter in the orthodontic appliance prepared in Example 11.

[0155] Figure 30 is a rear view of the bilateral jaw pad structure containing catheters in the orthodontic appliance prepared in Example 11.

[0156] Figure 31 is a bottom view of the bilateral jaw pad structure containing catheters in the orthodontic appliance prepared in Example 11.

[0157] Figure 32 is a schematic diagram of the disassembled bilateral jaw pad structure containing the catheter in the orthodontic appliance prepared in Example 11.

[0158] Figure 33 is a schematic rear view of the disassembled bilateral jaw pad structure containing the catheter in the orthodontic appliance prepared in Example 11.

[0159] Reference numerals: 1: appliance, 2: jaw pad, 3: capsule, 4: wing, 5: button attachment, 6: catheter. DETAILED DESCRIPTION

[0160] The present invention is further illustrated by way of examples below, but the present invention is not limited to the scope of the examples. Experimental methods in the following examples where specific conditions are not specified were performed according to conventional methods and conditions, or selected according to the product specifications.

[0161] The orthodontic appliance in the following embodiments is an invisible brace formed by hot-pressing a thermoplastic polymer film material and having a cavity consistent with the patient's jaw shape.

[0162] Example 1

[0163] A three-row, multi-grid hollow jaw pad mold (as shown in Figure 1) is prepared using a blister mold. Figure 1a is a top view of the jaw pad mold, and Figure 2b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The grids in Figure 1 correspond to each single capsule unit. As shown in Figure 1b, the middle of the square grid is concave downward, forming a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit, and the four walls of the grid correspond to the capsule shell of the single capsule unit.

[0164] Among them, the material of the sac-shaped shell of the single-sac unit is thermoplastic polyurethane elastomer TPU, the number of single-sac units is 27 (3×9), and water is filled into the sac-shaped cavity of each single-sac unit. A hot laminating machine is used to seal the sac-shaped jaw pad with a quadrilateral cross-section of the single-sac unit. The shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 2 mm. The side wings 4 are punched, and the side wings 4 with holes are glued to the jaw pad 2 with glue, and the buckle-shaped attachment 5 is glued to the orthodontic appliance 1. The jaw pad 2 is fixed to the orthodontic appliance 1 by buckling the side wings 4 with holes and the buckle-shaped attachment 5.

[0165] The prepared jaw pad has good bite force and can meet the needs of open bite, and multiple single-capsule units play a role in structural reinforcement. When one single-capsule unit is damaged, the remaining single-capsule units can still be used normally.

[0166] Example 2

[0167] A three-row, multi-cell, hollow jaw pad mold (as shown in Figure 2) was prepared using a blister mold. Figure 2a is a top view of the jaw pad mold, and Figure 2b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The square grids in Figure 2 correspond to the individual capsule units. As shown in Figure 2b, the middle of the square grid is concave downward, forming a hollow structure in the middle. This hollow structure corresponds to the capsule cavity of each individual capsule unit, and the four walls of the square grid correspond to the capsule shell of the individual capsule unit. The number of individual capsule units is 21 (3×7).

[0168] Among them, the material of the sac-shaped shell of the single-sac unit is thermoplastic polyurethane elastomer silicone rubber, and strawberry flavor essence and water are filled in the sac-shaped cavity of each single-sac unit in sequence, and sealed using a hot bonding machine to obtain a jaw pad with a quadrilateral cross-sectional shape of the single-sac unit. The shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 4 mm. The sleeve-type side wings 4 are bonded to the jaw pad 2 with glue, and the rod-shaped attachment 6 is bonded to the orthodontic appliance 1. The jaw pad 2 is fixed to the orthodontic appliance 1 by plugging the sleeve-type side wings 4 and the rod-shaped attachment 6.

[0169] The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. It not only plays a role in structural reinforcement, but also can slowly release strawberry flavor through the low-barrier membrane, giving long-lasting fresh breath.

[0170] Example 3

[0171] A multi-row, multi-grid hollow jaw pad mold (as shown in FIG3 ) was prepared using a blister mold. FIG3 a is a top view of the jaw pad mold, and FIG3 b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The circular grids in FIG3 correspond to the single capsule units. As shown in FIG3 b , the middle of the circular grid is concave downward, forming a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit, and the wall of the circular grid corresponds to the capsule shell of the single capsule unit. The total number of single capsule units is 21 (3×7).

[0172] Among them, the material of the sac-like shell is thermoplastic elastomer TPE, and agar and phase change wax are filled in the sac-like cavity of the single-sac unit located at the tip of the tooth. The sac-like cavity of the single-sac unit is filled with rose essence and water, and then a hot laminating machine is used to seal it to obtain a jaw pad with a circular cross-section shape of the single-sac unit. The shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 6 mm. As shown in Figures 15-18, the sleeve-type side wings 4 are glued to the jaw pad 2, and the rod-shaped attachment 6 is glued to the orthodontic appliance 1. The jaw pad 2 is fixed to the orthodontic appliance 1 by plugging the sleeve-type side wings 4 and the rod-shaped attachment 6.

[0173] The jaw pad prepared in Example 3 has excellent bite force and can meet the needs of opening the bite. The single-capsule unit located at the tip of the tooth is filled with non-Newtonian fluid or phase change material to balance the bite force at the tip of the tooth. The remaining single-capsule units are filled with rose essence and water, which can slowly release rose essence to continuously freshen the breath.

[0174] Example 4

[0175] A multi-grid hollow jaw pad mold with a honeycomb arrangement is prepared using a plastic suction mold (as shown in Figure 4). Figure 4a is a top view of the jaw pad mold, and Figure 4b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The hexagonal grids in Figure 4 correspond to each single capsule unit. As shown in Figure 4b, the hexagonal grids bulge upward to form a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit, and the four walls of the hexagonal grids correspond to the capsule shell of the single capsule unit.

[0176] Among them, the number of single-capsule units is 17, and the material of the capsule shell is thermoplastic elastomer TPE. The capsule cavity of the single-capsule unit located at the tip of the tooth is filled with agar and phase change wax, and the capsule cavity of the single-capsule unit is filled with rose essence and water. Then, a hot laminating machine is used to seal it to obtain a jaw pad with a hexagonal cross-section of the single-capsule unit. The shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 6 mm. As shown in Figures 8-11, the side wings 4 are punched, and the side wings 4 with holes are glued to the jaw pad 2 with glue, and the buckle-shaped attachment 5 is glued to the orthodontic appliance 1. The jaw pad 2 is fixed to the orthodontic appliance 1 by buckling the side wings 4 with holes and the buckle-shaped attachment 5.

[0177] Example 5

[0178] In Example 5, a multi-grid hollow jaw pad mold with a honeycomb arrangement was prepared using a vacuum forming mold (as shown in FIG4 ), wherein the jaw pad height was 10 mm, and other aspects were the same as in Example 4.

[0179] The jaw pads prepared in Examples 4-5 have excellent bite force and can meet the needs of opening the bite. The single-capsule units located at the tooth tips are filled with non-Newtonian fluid or phase change material to balance the bite force at the tooth tips. The remaining single-capsule units are filled with rose essence and water, which can slowly release rose essence to continuously freshen the breath.

[0180] Example 6

[0181] A three-dimensional honeycomb-arranged multi-grid hollow jaw pad mold (as shown in FIG5 ) is prepared using a blister mold. FIG5 a is a top view of the jaw pad mold, and FIG5 b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The hexagonal grids in FIG5 correspond to the single capsule units. As shown in FIG5 b , the hexagonal grids bulge upward to form a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit, and the four walls of the hexagonal grids correspond to the capsule shell of the single capsule unit.

[0182] Among them, the total number of single-capsule units is 77, the material of the sac-shaped shell is thermoplastic elastomer TPE, the sac-shaped cavity of the single-capsule unit located at the tip of the tooth is filled with agar and phase change wax, and the sac-shaped cavity of the single-capsule unit is filled with saliva indicator and water, and then sealed with a hot laminating machine to obtain a jaw pad with a hexagonal cross-section shape of the single-capsule unit. The shape of the jaw pad is a three-dimensional spider web, and the height of the jaw pad is 8 mm. The jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

[0183] The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. The single-capsule unit located at the tooth tip is filled with non-Newtonian fluid or phase change material to balance the bite force at the tooth tip. The remaining single-capsule units are filled with saliva indicators and water, which can slowly release saliva indicators to maintain oral safety.

[0184] Example 7

[0185] A three-dimensional tunnel-shaped multi-grid hollow jaw pad mold (as shown in FIG6 ) is prepared using a blister mold. FIG6 a is a top view of the jaw pad mold, and FIG6 b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The long strips of grids in FIG6 correspond to the single capsule units. As shown in FIG6 b , the long strips are each convex upward, forming a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit, and the four walls of the long strips of grids correspond to the capsule shell of the single capsule unit.

[0186] Among them, the number of single-capsule units is 36, the material of the sac-shaped shell is thermoplastic elastomer TPE, the sac-shaped cavity of the single-capsule unit located at the tip of the tooth is filled with agar and phase change wax, and the sac-shaped cavity of the single-capsule unit is filled with anti-caries drugs and water, and then sealed with a hot laminating machine to obtain a jaw pad with a quadrilateral cross-section of the single-capsule unit. The shape of the jaw pad is a three-dimensional tunnel, and the height of the jaw pad is 10 mm. As shown in Figures 12-14, the jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

[0187] The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. The non-Newtonian fluid or phase change material filled in the single capsule unit located at the tooth tip balances the bite force at the tooth tip, and can also slowly release anti-caries drugs to treat or prevent caries.

[0188] Example 8

[0189] A three-dimensional spider-web-shaped multi-grid hollow jaw pad mold (as shown in FIG7 ) was prepared using a blister mold. FIG7 a is a top view of the jaw pad mold, and FIG7 b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The long strips of lattice in FIG7 correspond to the single capsule units. As shown in FIG7 b , the middle of the long strips of lattice is concave downward, forming a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit. The number of single capsule units is 22.

[0190] Among them, the material of the sac-like shell is thermoplastic elastomer TPE, and agar and phase change wax are filled in the sac-like cavity of the single sac unit located at the tip of the tooth. The sac-like cavity of the single sac unit is filled with anti-caries drugs and water, and then a hot laminating machine is used to seal it to obtain a jaw pad with a quadrilateral cross-section of the single sac unit. The shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 10 mm. The jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

[0191] The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. The non-Newtonian fluid or phase change material filled in the single capsule unit located at the tooth tip balances the bite force at the tooth tip, and can also slowly release anti-caries drugs to treat or prevent caries.

[0192] Example 9

[0193] A three-dimensional spiral hollow jaw pad mold is prepared using a vacuum forming mold. The grids correspond to the single capsule units, and the hollow parts of the grids are the sac-like cavities of the single capsule units. The material of the sac-like shell is thermoplastic elastomer TPE. The sac-like cavity of the single capsule unit located at the tip of the tooth is filled with agar and phase change wax. The sac-like cavity of the single capsule unit is filled with drugs for treating periodontitis and water. Then, a hot laminating machine is used to seal it to obtain a jaw pad with a circular cross-section of a single capsule unit. The shape of the jaw pad is three-dimensional spiral, and the height of the jaw pad is 10 mm. Laser welding is used to weld the jaw pad 2 to the orthodontic appliance 1.

[0194] The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. The non-Newtonian fluid or phase change material filled in the single capsule unit located at the tooth tip balances the bite force at the tooth tip. At the same time, it can also slowly release drugs for treating or relieving periodontitis to maintain oral safety.

[0195] The above embodiments are preferred implementations of the invention, but the implementation of the present invention is not limited to the above examples. Any other changes, modifications, substitutions, and combination simplifications made without departing from the spirit and principles of the present invention are equivalent.

[0196] The orthodontic appliance in the following embodiments is an invisible brace made of a thermoplastic polymer material and formed by hot-pressing a hot-pressed film sheet, and has a cavity consistent with the patient's jaw shape.

[0197] Example 10

[0198] As shown in Figures 19-22, a jaw pad 2 is provided on the surface of the posterior tooth area on one side of the orthodontic appliance 1 close to the opposing jaw. The jaw pad 2 includes a capsule 3 and a side wing 4 with a hole. The side of the capsule 3 in contact with the orthodontic appliance 1 is adapted to the anatomical shape of the bottom surface of the tooth. The orthodontic appliance 1 also includes a button-shaped attachment 5. As shown in Figures 23-25, the orthodontic appliance 1 and the jaw pad 2 are buckled together through the side wing 4 with a hole and the button-shaped attachment 5, wherein the button-shaped attachment 5 and the orthodontic appliance 1 are bonded with glue.

[0199] The jaw pad 2 is manufactured using a mold forming process, specifically a hollow jaw pad mold using a blister mold. The hollow portion of the mold corresponds to the sac-like cavity. The sac-like shell is made of thermoplastic polyurethane (TPU) with a hardness of 85A and a water absorption rate of 2.15%. The sac-like cavity is filled with water to 100%. The cross-sectional shape of the tube is square and sealed using a heat-sealing machine to produce the jaw pad. The jaw pad is 2 mm high and the wall thickness of the sac-like shell is 0.5 mm. The thickness-to-diameter ratio of the sac-like shell is 1:2. The side wings 4 are perforated and glued to the jaw pad 2. The buckle-like attachment 5 is glued to the appliance 1. The jaw pad 2 is secured to the appliance 1 by the buckle-like attachment 5 and the perforated side wings 4.

[0200] The prepared jaw pad has good bite force and can meet the needs of opening the bite.

[0201] Example 11

[0202] As shown in Figures 26-31, a jaw pad 2 is provided on each side of the posterior tooth area of ​​the appliance 1 near the opposing jaw. The jaw pad 2 includes a capsule 3, a side wing with a hole 4 and an integral retractable conduit 6 connecting the left and right capsules 3; wherein, the side of the capsule 3 in contact with the appliance 1 is adapted to the anatomical shape of the bottom surface of the tooth; the connection structure between the conduit 6 in the jaw pad 2 and the two capsules 3 is shown in Figures 32 and 33; the appliance 1 also includes a button-shaped attachment 5; the appliance 1 and the jaw pad 2 are fastened and fixed by the side wing with a hole 4 and the button-shaped attachment 5, wherein the button-shaped attachment 5 and the appliance 1 are bonded with glue.

[0203] The jaw pad 2 is manufactured using a mold forming process, specifically a hollow jaw pad mold using a blister mold. The hollow portion corresponds to the sac-like cavity. The sac-like shell is made of thermoplastic polyurethane (TPU) with a hardness of 85A and a water absorption rate of 2.15%. The sac-like cavity is filled with water to 100%. The cross-sectional shape of the tube is square and sealed using a heat-sealing machine to produce the jaw pad. The jaw pad is 2 mm high and the sac-like shell has a wall thickness of 0.5 mm. The shell has a thickness-to-diameter ratio of 1:2. The side wings 4 are perforated and glued to the jaw pad 2. The buckle attachment 5 is glued to the appliance 1. The jaw pad 2 is secured to the appliance 1 by the buckle attachment 5 and the perforated side wings 4.

[0204] The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

[0205] The prepared jaw pad has good bite force and can meet the needs of open bite. The two sacs of the jaw pad are respectively arranged in the left and right posterior tooth areas. Since the catheter connects the two sacs of the jaw pad, the left and right bite forces can be better balanced.

[0206] Example 12

[0207] A jaw pad 2 is provided on each side of the appliance 1 on the surface of the posterior teeth area close to the opposing jaw. The jaw pad 2 includes a capsule 3, sleeve-type side wings 4 and a conduit 6 connecting the left and right capsules 3; wherein, the side of the capsule 3 in contact with the appliance 1 is adapted to the anatomical shape of the bottom surface of the tooth; the connection structure between the conduit 6 in the jaw pad 2 and the two capsules 3 is the same as that in Example 2; the appliance 1 also includes a rod-shaped attachment; the appliance 1 and the jaw pad 2 are fixed by plugging the sleeve-type side wings 4 and the rod-shaped attachment.

[0208] The jaw pad 2 is manufactured using a mold forming process, specifically a hollow jaw pad mold using a blister mold. The hollow portion corresponds to the sac-like cavity. The sac-like shell is made of thermoplastic polyurethane elastomer silicone rubber with a hardness of 42A and a water absorption rate of 0.05%. The sac-like cavity is filled with air to a filling volume of 130%. The cross-sectional shape of the conduit is trapezoidal and sealed using a heat-sealing machine to produce the jaw pad. The jaw pad is 2 mm high and the sac-like shell has a wall thickness of 1 mm. The shell has a thickness-to-diameter ratio of 1:1. The sleeve-like wings 4 are glued to the jaw pad 2, and the rod-like attachment is glued to the appliance 1. The jaw pad 2 is secured to the appliance 1 by interlocking the sleeve-like wings 4 and the rod-like attachment.

[0209] The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

[0210] The prepared jaw pad has good bite force and can meet the needs of open bite. The two sacs of the jaw pad are respectively arranged in the left and right posterior tooth areas. Since the catheter connects the two sacs of the jaw pad, the left and right bite forces can be better balanced.

[0211] Example 13

[0212] A jaw pad 2 is provided on each side of the appliance 1 on the surface of the posterior teeth area close to the opposing jaw. The jaw pad 2 includes a capsule 3, sleeve-type side wings 4 and a conduit 6 connecting the left and right capsules 3; wherein, the side of the capsule 3 in contact with the appliance 1 is adapted to the anatomical shape of the bottom surface of the tooth; the connection structure between the conduit 6 in the jaw pad 2 and the two capsules 3 is the same as that in Example 2; the appliance 1 also includes a rod-shaped attachment; the appliance 1 and the jaw pad 2 are fixed by plugging the sleeve-type side wings 4 and the rod-shaped attachment.

[0213] The jaw pad 2 is manufactured using a mold forming process, specifically a hollow jaw pad mold using a blister mold. The hollow portion corresponds to the sac-like cavity. The sac-like shell is made of thermoplastic polyurethane (TPE) with a hardness of 70A and a water absorption rate of 1.5%. The sac-like cavity is filled with non-Newtonian fluid agar to a 100% fill level. The cross-sectional shape of the tube is elliptical. The jaw pad is sealed using a heat-sealing machine. The jaw pad is 2 mm in height and the sac-like shell has a wall thickness of 0.7 mm. The shell has a thickness-to-diameter ratio of 0.7:2.3. The sleeve-like wings 4 are glued to the jaw pad 2, and the rod-like attachment is glued to the appliance 1. The jaw pad 2 is secured to the appliance 1 by interlocking the sleeve-like wings 4 and the rod-like attachment.

[0214] The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

[0215] The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. When the bite force is uneven, the non-Newtonian fluid can buffer and neutralize the bite strength. The two sacs of the jaw pad are respectively set in the left and right posterior tooth areas. Since the catheter connects the two sacs of the jaw pad, the left and right bite forces can be better balanced.

[0216] Example 14

[0217] A jaw pad 2 is provided on each side of the appliance 1 on the surface of the posterior teeth area close to the opposing jaw. The jaw pad 2 includes a capsule 3 and a tube 6 connecting the left and right capsules 3. The side of the capsule 3 in contact with the appliance 1 is adapted to the anatomical shape of the bottom surface of the tooth. The connection structure between the tube 6 in the jaw pad 2 and the two capsules 3 is the same as that in Example 2. The jaw pad 2 and the appliance 1 are welded together by laser welding.

[0218] The jaw pad 2 is manufactured using a mold forming process. Specifically, a hollow jaw pad mold is formed using a blister mold. The hollow portion corresponds to the sac-like cavity. The sac-like shell is made of thermoplastic polyurethane (TPE) with a hardness of 70A and a water absorption rate of 0.2%. The sac-like cavity is filled with saliva indicator to a full fill level. The cross-sectional shape of the catheter is elliptical. The jaw pad is sealed using a heat-sealing machine. The jaw pad is 4 mm in height and the wall thickness of the sac-like shell is 0.7 mm. The thickness-to-diameter ratio of the sac-like shell is 0.7:1.3. The jaw pad 2 is welded to the orthodontic appliance 1 using laser welding.

[0219] The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

[0220] Example 15

[0221] The jaw pad structure and the connection method between the jaw pad 2 and the orthodontic appliance 1 of Example 6 are the same as those of Example 5.

[0222] The jaw pad 2 is manufactured using a mold forming process. Specifically, a hollow jaw pad mold is formed using a blister mold. The hollow portion corresponds to the sac-like cavity. The sac-like shell is made of thermoplastic polyurethane (TPE) with a hardness of 70A and a water absorption rate of 60%. The sac-like cavity is filled with saliva indicator to a full fill level. The cross-sectional shape of the catheter is elliptical. The jaw pad is then sealed using a heat-sealing machine. The jaw pad is 4 mm in height and the sac-like shell has a wall thickness of 0.7 mm. The shell has a thickness-to-diameter ratio of 0.7:1.3. The jaw pad 2 is laser welded to the orthodontic appliance 1.

[0223] The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

[0224] Example 16

[0225] The jaw pad structure and the connection method between the jaw pad 2 and the orthodontic appliance 1 of Example 7 are the same as those of Example 5.

[0226] The jaw pad 2 is manufactured using a mold forming process, specifically a hollow jaw pad mold using a blister mold. The hollow portion corresponds to the sac-like cavity. The sac-like shell is made of thermoplastic polyurethane (TPE) with a hardness of 70A and a water absorption rate of 70%. The sac-like cavity is filled with a saliva indicator to a full fill level. The cross-sectional shape of the catheter is elliptical and sealed using a heat-sealing machine. The jaw pad is 4 mm in height and the shell has a wall thickness of 0.7 mm. The shell has a thickness-to-diameter ratio of 0.7:1.3. The jaw pad 2 is laser welded to the appliance 1.

[0227] The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

[0228] Example 17

[0229] The height of the jaw pad of Example 8 is 6 mm, and the rest are the same as those of Example 7.

[0230] The jaw pads prepared in Examples 5-8 have good bite force and can meet the needs of open bite. The two sacs of the jaw pad are respectively arranged on the left and right posterior tooth areas. Since the catheter connects the two sacs of the jaw pad, the left and right bite forces can be better balanced. At the same time, the jaw pad can also slowly release saliva indicators to maintain oral safety.

[0231] Example 18

[0232] The jaw pad structure and the connection method between the jaw pad 2 and the orthodontic appliance 1 of Example 9 are the same as those of Example 5.

[0233] The jaw pad 2 is manufactured using a mold forming process, specifically a blister mold. The hollow portion of the jaw pad corresponds to the sac-like cavity. The outer shell is made of thermoplastic polyurethane (TPE) with a hardness of 70A and a water absorption rate of 70%. The sac-like cavity is filled with rose essence to a full filler volume. The cross-sectional shape of the tube is elliptical. The jaw pad is sealed using a heat-sealing machine. The jaw pad is 6 mm in height and the outer shell has a wall thickness of 0.7 mm. The thickness-to-diameter ratio of the outer shell is 0.7:2.3. The jaw pad 2 is laser welded to the orthodontic appliance 1.

[0234] The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

[0235] Examples 19-20

[0236] The jaw pad height of Example 10 is 8 mm, the jaw pad height of Example 11 is 10 mm, and the rest are the same as Example 9.

[0237] The jaw pads prepared in Examples 9-11 have good bite force and can meet the needs of opening the bite. The two sacs of the jaw pad are respectively arranged on the left and right posterior tooth areas. Since the catheter connects the two sacs of the jaw pad, the left and right bite forces can be better balanced. At the same time, the jaw pad can also slowly release rose essence to continuously freshen the breath.

[0238] Example 21

[0239] The jaw pad structure and the connection method between the jaw pad 2 and the orthodontic appliance 1 of Example 12 are the same as those of Example 5.

[0240] The jaw pad 2 is manufactured using a mold forming process, specifically a blister mold. The hollow portion corresponds to the sac-like cavity. The sac-like shell is made of thermoplastic polyurethane (TPE) with a hardness of 70A and a water absorption rate of 70%. The cavity is filled with an anti-caries drug to a 100% filling level. The cross-section of the tube is elliptical and sealed using a heat-sealing machine. The jaw pad is 6mm high and the shell has a wall thickness of 0.7mm. The shell has a thickness-to-diameter ratio of 0.7:2.3. The jaw pad 2 is welded to the appliance 1 using laser welding.

[0241] The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

[0242] The prepared jaw pad has excellent bite force, meeting the need for an open bite. The two jaw pad sacs are located in the left and right posterior tooth areas, respectively. Because the catheter connects the two jaw pad sacs, the bite force can be better balanced. It can also slowly release an anti-caries drug to treat or prevent tooth decay.

[0243] Example 22

[0244] The jaw pad structure and the connection method between the jaw pad 2 and the orthodontic appliance 1 of Example 13 are the same as those of Example 5.

[0245] The jaw pad 2 is manufactured using a mold forming process, specifically a blister mold. The hollow portion corresponds to the sac-like cavity. The sac-like shell is made of thermoplastic polyurethane (TPE) with a hardness of 70A and a water absorption rate of 70%. The sac-like cavity is filled with a medication for treating periodontitis to a 100% filling level. The cross-sectional shape of the tube is elliptical. The jaw pad is sealed using a heat-sealing machine. The jaw pad is 6mm high and the shell has a wall thickness of 0.7mm. The shell has a thickness-to-diameter ratio of 0.7:2.3. The jaw pad 2 is welded to the appliance 1 using laser welding.

[0246] The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

[0247] The prepared jaw pad has excellent bite force, meeting the need for open bite. The two jaw pad pockets are located in the left and right posterior teeth areas respectively. Because the catheter connects the two jaw pad pockets, it can better balance the left and right bite forces. At the same time, it can also slowly release periodontitis treatment drugs to maintain oral safety.

[0248] The above embodiments are preferred implementations of the invention, but the implementation of the present invention is not limited to the above examples. Any other changes, modifications, substitutions, and combination simplifications made without departing from the spirit and principles of the present invention are equivalent.

[0249] Although the above describes specific embodiments of the present invention, it should be understood by those skilled in the art that these are merely illustrative and that various changes or modifications may be made to these embodiments without departing from the principles and essence of the present invention. Therefore, the scope of protection of the present invention is defined by the appended claims.

Claims

1. A jaw pad, characterized in that: It comprises n single-capsule units, each of which comprises a sac-shaped cavity, a sac-shaped shell and a filling material filled in the sac-shaped cavity, wherein n is an integer, and n≥2; the n single-capsule units are interconnected, and the n single-capsule units are not interconnected.

2. The jaw pad according to claim 1, characterized in that: The heights of the n single capsule units are uniform or non-uniform, preferably non-uniform; The distribution of the non-uniform height is preferably a gradient height distribution, for example, low in the middle and high around, or high in the middle and low around; And / or, the side of the single capsule unit in contact with the appliance is adapted to the anatomical shape or planar shape of the bottom surface of the tooth; And / or, the jaw pad is in contact with the appliance and does not cover the incisor area.

3. The jaw pad according to claim 1 or 2, characterized in that: The shape of the jaw pad is a three-dimensional grid, a three-dimensional spider web, a three-dimensional tunnel or a three-dimensional spiral; And / or, the cross-sectional shape of the single capsule unit is polygonal, preferably triangular, quadrilateral or hexagonal, for example, quadrilateral.

4. The jaw pad according to any one of claims 1 to 3, characterized in that: The height of the jaw pad is 2-10 mm, for example, 4 mm, 6 mm or 8 mm; And / or, the wall thickness of the capsule-shaped shell is 0.05-2 mm, preferably 0.5-0.8 mm; And / or, the thickness-to-diameter ratio of the sac-shaped shell is 1:(0-9); And / or, the jaw pad is fixed to the orthodontic appliance by bonding, plugging, snapping, welding or embedding.

5. The jaw pad according to any one of claims 1 to 4, characterized in that: The material of the sac-shaped shell is thermoplastic elastomer, the filling material is water, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 2 mm; Alternatively, the material of the capsule-shaped shell is thermoplastic elastomer, the filling material is water and strawberry flavor essence, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 4 mm; Alternatively, the material of the capsule-shaped shell is thermoplastic elastomer, the filling material is agar, phase change wax, rose essence and water, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 6 mm; Alternatively, the material of the capsule-shaped shell is a thermoplastic elastomer, the filling material is agar, phase change wax, an anti-caries drug and water, the shape of the jaw pad is a three-dimensional tunnel, and the height of the jaw pad is 10 mm; Alternatively, the material of the capsule-shaped shell is thermoplastic elastomer, the filling material is agar, phase change wax, a drug for treating periodontitis and water, the shape of the jaw pad is a three-dimensional spiral, and the height of the jaw pad is 10 mm.

6. The jaw pad according to any one of claims 1 to 5, characterized in that: The n single capsule units are filled with the same or different filling materials, preferably with different filling materials; and / or, the filling material comprises one or more of a liquid, a gas, a phase change material and a non-Newtonian fluid; The liquid preferably includes water and / or a solution containing a functional agent; the functional agent in the solution containing a functional agent preferably includes one or more of an aromatic, an indicator and a drug; the aromatic is preferably an essence, and the essence is preferably a strawberry flavor and / or a rose flavor; the indicator is preferably a saliva indicator; the drug is preferably an anti-caries drug and / or a drug for treating periodontitis; Wherein, the gas preferably includes one or more of air, nitrogen, carbon dioxide and oxygen, for example, air; Wherein, the phase change material is preferably phase change wax; Wherein, the non-Newtonian fluid preferably includes one or more of agar, concentrated sugar water and apple pulp.

7. The jaw pad according to any one of claims 1 to 6, characterized in that: The elongation at break of the material of the capsule-shaped shell is 30-1500%, preferably 350-940%; And / or, the hardness of the material of the capsule-shaped shell is 30-95A, preferably 42-85A; and / or, the water absorption rate of the material of the sac-shaped shell is 0.05%-150%; Preferably, the water absorption rate of the material of the sac-shaped shell is 0.05%-5%, more preferably 0.05%-2%; Preferably, the water absorption rate of the material of the bladder-shaped shell is 5%-150%, more preferably 5%-90%, and more preferably 10%-60%; And / or, the material of the sac-shaped shell is silicone rubber, thermoplastic elastomer or thermoplastic plastic.

8. The jaw pad according to any one of claims 1 to 7, characterized in that: The filling amount of the filling material is 0 or more, preferably 10%-200%, more preferably 100-130%, where the percentage is the percentage of the volume of the filling material to the volume of the initial sac-shaped cavity.

9. A method for preparing a jaw pad according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: filling the filling material into the sac-shaped cavity in each of the single-sac units and then sealing the cavity to obtain the jaw pad.

10. The method for preparing the jaw pad according to claim 9, characterized in that: The capsule-shaped shell is made by injection molding, injection molding, vacuum molding or additive manufacturing; And / or, the filling method is injection, pre-embedding or gas compression; And / or, the filling device is a filling machine; And / or, the jaw pad includes a conduit, and the conduit and the jaw pad are connected by welding; Wherein, the welding equipment is preferably a heat-bonding machine; And / or, the sealing method is heat sealing, welding or gluing; Wherein, the heat sealing equipment is preferably a radio frequency electronic heat sealing machine.

11. A jaw pad, characterized in that: The invention comprises a capsule, wherein the capsule comprises a capsule-shaped shell, a capsule-shaped cavity and a filling material filled in the capsule-shaped cavity; the jaw pad contacts the orthodontic appliance and does not cover the incisor area.

12. The jaw pad according to claim 11, characterized in that: The elongation at break of the material of the capsule-shaped shell is 30-1500%, preferably 350-940%, for example 370% or 650%; And / or, the hardness of the material of the sac-shaped shell is 30-95A, preferably 42-85A, for example 62A or 70A.

13. The jaw pad according to claim 11 or 12, characterized in that: The water absorption rate of the material of the capsule shell is 0.05%-150%; Preferably, the water absorption rate of the material of the sac-shaped shell is 0.05%-5%, more preferably 0.05%-2%, for example 0.1% or 0.5%; Preferably, the water absorption rate of the material of the bladder-shaped shell is 5%-150%, more preferably 5%-90%, and more preferably 10%-60%; And / or, the material of the sac-shaped shell is silicone rubber, thermoplastic elastomer or thermoplastic plastic.

14. The jaw pad according to any one of claims 11 to 13, characterized in that: The side of the jaw pad in contact with the appliance is adapted to the anatomical shape or plane shape of the bottom surface of the teeth; And / or, the height of the jaw pad is 2-10 mm, for example, 4 mm, 6 mm or 8 mm; and / or, the wall thickness of the capsule-shaped shell is 0.5-2 mm, preferably 0.5-1 mm, more preferably 0.5-0.8 mm, for example 0.7 mm; and / or, the thickness-to-diameter ratio of the sac-shaped shell is 1:(0.1-9), for example, 1:1, 1:2, 0.7:1.3, 0.7:2.3; And / or, the filling amount of the filling material is 0 or more, preferably 10%-200%, more preferably 100-130%, where the percentage is the percentage of the volume of the filling material to the volume of the initial sac-like cavity.

15. The jaw pad according to any one of claims 11 to 14, characterized in that: The material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 85A, the water absorption rate of the material of the sac-shaped shell is 2.15%, the height of the jaw pad is 2mm, the wall thickness of the sac-shaped shell is 0.5mm, and the thickness-to-diameter ratio of the sac-shaped shell is 1:2; Alternatively, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 42A, the water absorption rate of the material of the sac-shaped shell is 0.05%, the height of the jaw pad is 2 mm, the wall thickness of the sac-shaped shell is 1 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 1:1; Alternatively, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 1.5%, the height of the jaw pad is 2 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:2.3; Alternatively, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 0.2%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3; Alternatively, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 60%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3; Alternatively, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 70%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3; Alternatively, the material of the sac-shaped shell is thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 70%, the height of the jaw pad is 6 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:2.

3.

16. The jaw pad according to any one of claims 11 to 15, characterized in that: The filling material includes one or more of liquid, gas, phase change material and non-Newtonian fluid; The liquid preferably includes water and / or a solution containing a functional agent; the functional agent in the solution containing a functional agent preferably includes one or more of an aromatic, an indicator and a drug; the aromatic is preferably an essence, and the essence is preferably a strawberry flavor and / or a rose flavor; the indicator is preferably a saliva indicator; the drug is preferably an anti-caries drug and / or a drug for treating periodontitis; Wherein, the gas preferably includes one or more of air, nitrogen, carbon dioxide and oxygen, for example, air; Wherein, the phase change material is preferably phase change wax; Wherein, the non-Newtonian fluid is preferably one or more of agar, concentrated sugar water and apple pulp.

17. The jaw pad according to any one of claims 11 to 16, characterized in that: The jaw pad includes at least two of the sacs and a conduit connecting the at least two of the sacs; Preferably, the cross-sectional shape of the conduit is circular, elliptical, square, trapezoidal or triangular; Preferably, the inner diameter of the catheter is 0.05-5 mm; Preferably, the wall thickness of the conduit is 0.02-2 mm; Preferably, the catheter is wholly or partially retractable or non-retractable; Preferably, the catheter is filled with the filling material; the filling amount of the filling material is preferably 0-100%, where the percentage is the percentage of the volume of the filling material to the volume of the catheter.

18. The jaw pad according to any one of claims 11 to 17, characterized in that: The jaw pad is fixed on the orthodontic appliance by bonding, plugging, snapping, welding or embedding.

19. A method for preparing a jaw pad according to any one of claims 11 to 18, characterized in that: The method comprises the following steps: filling the filling material into the sac-shaped cavity and then sealing the cavity to obtain the jaw pad.

20. The method for preparing the jaw pad according to claim 19, characterized in that: The capsule-shaped shell is made by injection molding, injection molding, vacuum molding or additive manufacturing; And / or, the filling method is injection, pre-embedding or gas compression; And / or, the filling device is a filling machine; And / or, the jaw pad includes a conduit, and the conduit and the jaw pad are connected by welding; Wherein, the welding equipment is preferably a heat-bonding machine; And / or, the sealing method is heat sealing, welding or gluing; Wherein, the heat sealing equipment is preferably a radio frequency electronic heat sealing machine.

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