Dental instrument and preparation method thereof
Dental devices that are prepared by using materials with high water absorption and soaking functional drug solutions to absorb water and adsorb drugs, the problem of inability to effectively solve various oral diseases in the prior art is solved, and a dental device that achieves versatile and long-term sustained release effects is achieved.
Patent Information
- Application Number
- CN202311461460.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-06
- Publication Date
- 2025-05-06
AI Technical Summary
There are no good general dental equipment in the prior art, which cannot effectively solve various oral diseases and prevent them.
Dental instruments are prepared using water-absorbing materials with a water-absorbing rate of 5%-100%, such as braces, jaw pads connecting hoses and device accessories. By soaking a functional drug solution, the material absorbs water and adsorbs the drug, achieving a sustained release effect.
It realizes the versatility of dental instruments, which can prevent caries, whiten, sterilize, and refresh the breath, and extend the time of functional drugs to play. The instrument can be reused, has high wearing comfort and long service life.
Smart Images
Figure CN119925007A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a dental instrument and a preparation method thereof. Background Art
[0002] Oral diseases such as caries, periodontitis, bad breath, etc. have a high incidence rate and patients are deeply troubled by these diseases. At present, symptomatic treatment is still the main treatment for different oral diseases. There is no good universal dental instrument that can solve and prevent multiple oral diseases. Summary of the invention
[0003] In order to solve the problem that there is no good universal dental instrument in the prior art to solve various oral diseases, a dental instrument and a preparation method thereof are provided. The dental instrument can prevent and treat oral problems such as caries prevention, whitening, sterilization, and breath freshening.
[0004] The present invention mainly adopts the following technical solutions to solve the above technical problems:
[0005] The present invention provides a dental instrument, which comprises a water-absorbing material. The water absorption rate of the water-absorbing material is 5%-100%.
[0006] In the present invention, the hardness of the water-absorbing material before absorbing water is preferably Shore 20D-80D.
[0007] In the present invention, the hardness of the water-absorbing material refers to the hardness of the water-absorbing material before absorbing water.
[0008] In the present invention, the tensile strength of the water-absorbing material after absorbing water is preferably 5-50 MPa.
[0009] In the present invention, the tensile strength of the water-absorbing material refers to the tensile strength of the water-absorbing material after absorbing water.
[0010] In the present invention, the water-absorbing material is preferably polyurethane, polyamide or hydrogel.
[0011] Wherein, the water-absorbing material is preferably polyurethane, and the density of the polyurethane is preferably>1g / cm 3 , for example, 1.1 g / cm 3 .
[0012] Wherein, the relative molecular weight of the polyurethane is preferably 50,000-300,000.
[0013] Wherein, the polyurethane material preferably has biocompatibility.
[0014] In the present invention, the dental apparatus may be a dental brace, which includes N layers, N≥1, at least one of which includes a water-absorbing material, and the water absorption rate of the water-absorbing material is preferably 5%-50%, for example, 10%.
[0015] When N=2, there are the first layer and the second layer in the direction away from the teeth, wherein preferably, the first layer includes a water-absorbing material, and / or the second layer includes a water-absorbing material.
[0016] Wherein, when both the first layer and the second layer include water-absorbing materials: the water-absorbing materials in the first layer and the water-absorbing materials in the second layer preferably meet one or more of the following conditions:
[0017] (a) the water absorption rate of the water-absorbing material in the first layer and the water-absorbing material in the second layer is independently 5% to 20%;
[0018] (b) the tensile strength of the water-absorbing material in the first layer and the water-absorbing material in the second layer after absorbing water is independently 10-40 MPa;
[0019] (c) The hardness of the water-absorbent material in the first layer and the water-absorbent material in the second layer before water absorption is independently 40-50 Shore D.
[0020] Among them, when the first layer includes water-absorbing material: the water absorption rate of the water-absorbing material in the first layer is preferably 5%-20%; the tensile strength of the water-absorbing material in the first layer after water absorption is preferably 10-40MPa; the hardness of the water-absorbing material in the first layer before water absorption is preferably Shore 40-50D.
[0021] Among them, when the second layer includes water-absorbing material: the water absorption rate of the water-absorbing material in the second layer is preferably 5%-20%; the tensile strength of the water-absorbing material in the second layer after water absorption is preferably 10-40MPa; the hardness of the water-absorbing material in the second layer before water absorption is preferably Shore 70-85D.
[0022] Wherein, when N=1, the water absorption rate of the water-absorbing material is preferably 10%-50%; the hardness of the water-absorbing material before water absorption is preferably Shore 30-45D; and the tensile strength of the water-absorbing material after water absorption is preferably 10-40MPa.
[0023] In the present invention, the dental instrument may be a jaw pad connecting hose, and the jaw pad connecting hose includes a water-absorbing material. The water absorption rate of the water-absorbing material is preferably 10%-30%, for example, 20%.
[0024] The hardness of the water-absorbing material before absorbing water is preferably Shore 40-50D.
[0025] Wherein, the tensile strength of the water-absorbing material after absorbing water is preferably 5-50 MPa.
[0026] Wherein, the thickness of the jaw pad connecting hose is preferably 0.5 mm.
[0027] In the present invention, the dental instrument may be an orthodontic appliance accessory, and the orthodontic appliance accessory includes a water-absorbing material. The water absorption rate of the water-absorbing material is preferably 30%-100%, for example, 100%.
[0028] Wherein, the hardness of the water-absorbing material before absorbing water is preferably 30-40D.
[0029] Wherein, the tensile strength of the water-absorbing material after absorbing water is preferably 10-50 MPa.
[0030] In the present invention, the dental instrument preferably further comprises a functional unit adsorbed in the structure of the water-absorbing material.
[0031] Wherein, the functional unit is preferably a functional drug solution or a dry functional drug.
[0032] In the present invention, materials with a certain water absorption rate are used to prepare dental instruments, such as braces, jaw pad connecting hoses and appliance accessories, etc., wherein the appliance accessories can also be appliance coatings. The dental instruments are immersed in a functional solution (such as sodium fluoride solution, hydrogen peroxide aqueous solution, drug aqueous solution, aromatic aqueous solution). The material absorbs water due to its certain water absorption rate, and the functional components are adsorbed together with the water in the dental instrument material. After the water absorption reaches saturation, the dental material is taken out and dried. After the water evaporates, the functional components remain in the dental instrument. When the dental instrument is worn in the mouth, the dental instrument absorbs water in the saliva, and the functional components are replaced in the water exchange to achieve sustained release. The dental instrument can repeatedly achieve the above-mentioned filling-release function.
[0033] The present invention also provides a method for preparing the dental instrument, which comprises the following steps: using the water-absorbing material to form at least a part of the dental instrument.
[0034] In the present invention, preferably, the method for preparing the dental instrument further comprises the step of applying a functional unit to the structure of the water-absorbing material of the dental instrument; more preferably, the method for applying comprises immersing the dental instrument in a functional drug solution; further preferably, after the immersion, the method further comprises the step of drying to obtain a dry functional drug.
[0035] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.
[0036] The reagents and raw materials used in the present invention are commercially available.
[0037] The positive and progressive effects of the present invention are:
[0038] The dental instrument of the present invention is multifunctional and can absorb a variety of functional drugs, such as: fluoride absorption for caries prevention, drug absorption for sustained release, H2O2 absorption for whitening, and fragrance absorption for breath freshening, etc.; and can make the functional drugs slowly released in the oral cavity, which can prolong the time for the functional drugs to take effect.
[0039] The dental instrument of the present invention is reusable, has high wearing comfort and long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0040] Figure 1 This is a schematic diagram of the structure of the jaw pad connecting hose.
[0041] Figure 2 It is a schematic diagram of the structure of the orthodontic appliance accessories.
[0042] The reference numerals are as follows:
[0043] 1- Jaw pad, 2- Connecting hose, 3- Accessories, 4- Orthodontic appliance. DETAILED DESCRIPTION
[0044] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples. The experimental methods in the following examples without specifying specific conditions are carried out according to conventional methods and conditions, or selected according to the product specifications.
[0045] Example 1.1
[0046] Functional braces are prepared using polyurethane material with a water absorption rate of 10%, and the properties of the material are listed in Table 1. After the water absorption reaches saturation, the mechanical properties of the braces material can still maintain more than 60% of the original properties, ensuring that it will not be damaged by tooth occlusion when worn in the mouth. It is soaked in a 0.1% sodium fluoride aqueous solution, taken out and dried after saturation, and can be used for tooth caries prevention. The functional braces can be filled with fluoride during the day and worn at night to release fluoride to prevent caries.
[0047] The functional braces of this embodiment are prepared by hot pressing, and the temperature of the hot pressing is 220° C. and the pressure is 4 MPa.
[0048] Table 1
[0049]
[0050]
[0051] Example 1.2
[0052] Functional braces are prepared using polyurethane material with a water absorption rate of 10%, and the material properties are listed in Table 1. After the water absorption reaches saturation, the mechanical properties of the braces material can still maintain more than 60% of the original properties, ensuring that it will not be damaged by tooth occlusion when worn in the mouth. Soak it in a 6% hydrogen peroxide aqueous solution, take it out and dry it after it is saturated with water, and it can be used for teeth whitening.
[0053] The functional braces of this embodiment are prepared by hot pressing, and the temperature of the hot pressing is 220° C. and the pressure is 4 MPa.
[0054] Example 1.3
[0055] Functional braces are prepared using polyurethane material with a water absorption rate of 20%, and the material properties are listed in Table 1. After the water absorption reaches saturation, the mechanical properties of the braces material can still maintain more than 60% of the original properties, ensuring that it will not be damaged by tooth occlusion when worn in the mouth. Soak it in a 1% tea polyphenol aqueous solution, take it out and dry it after it is saturated with water, and it can be used for oral antibacterial and breath freshening effects.
[0056] The functional braces of this embodiment are prepared by hot pressing, and the temperature of the hot pressing is 220° C. and the pressure is 4 MPa.
[0057] Example 1.4
[0058] The functional braces are prepared using polyamide material with a water absorption rate of 10%, and the properties of the material are listed in Table 1. After soaking it in a 1% tea polyphenol aqueous solution and saturating it with water, it is taken out and dried, and can be used for oral antibacterial and breath freshening effects.
[0059] The functional braces of this embodiment are prepared by hot pressing, and the temperature of the hot pressing is 220° C. and the pressure is 4 MPa.
[0060] Example 1.5
[0061] The functional braces are prepared using double-layer polyurethane materials, and the properties of the materials are listed in Table 1. The water absorption rate of the water-absorbing layer polyurethane material is 10%. It is soaked in a 0.1% sodium fluoride aqueous solution, and after being saturated with water, it is taken out and dried, and can be used for tooth caries prevention. The functional braces can be filled with fluoride during the day and worn at night to release fluoride to prevent caries.
[0062] The functional braces of this embodiment are prepared by hot pressing, and the temperature of the hot pressing is 220° C. and the pressure is 4 MPa.
[0063] Comparative Example 1.1
[0064] The braces were made of polyurethane material with a water absorption rate of 4%, and the properties of the material are listed in Table 1. The braces were soaked in an aqueous solution containing an aromatic agent, taken out after 6 hours, and washed and dried. The dried braces could not be worn in the mouth to sense the aromatic function.
[0065] The functional braces of this comparative example are prepared by hot pressing, and the temperature of the hot pressing is 220° C. and the pressure is 4 MPa.
[0066] Example 2.1
[0067] The jaw pad connection hose is made of a polyurethane material with a water absorption rate of 20%, and the properties of the material are listed in Table 2. The jaw pad is filled with a liquid with a fresh smell. When the jaw pad is worn, the liquid flows through the connection hose, the hose absorbs saliva and exchanges water, and the aromatic smell is released, achieving the effect of fresh breath. Since the liquid is encapsulated inside the jaw pad and the liquid is exchanged only through the hose part, its fragrance can be preserved for a long time and will not evaporate quickly.
[0068] Table 2
[0069]
[0070] The structural schematic diagram of the jaw pad connection hose of this embodiment is as follows Figure 1 , wherein the jaw pads 1 are connected via a connecting hose 2.
[0071] The jaw pad connecting hose of the present embodiment is prepared by extrusion molding, and the extrusion molding temperature is 195°C.
[0072] Example 2.2
[0073] The jaw pad connection hose is made of a polyamide material with a water absorption rate of 10%, and the properties of the material are listed in Table 2. The jaw pad is filled with a liquid with a fresh smell. When the jaw pad is worn, the liquid flows through the connection hose, the hose absorbs saliva and exchanges water, and the aromatic smell is released to achieve the effect of fresh breath. Since the liquid is encapsulated inside the jaw pad and the liquid is exchanged only through the hose part, its fragrance can be preserved for a long time and will not evaporate quickly.
[0074] The structural schematic diagram of the jaw pad connection hose of this embodiment is as follows Figure 1 , wherein the jaw pads 1 are connected via a connecting hose 2.
[0075] The jaw pad connecting hose of the present embodiment is prepared by extrusion molding, and the extrusion molding temperature is 205°C.
[0076] Example 3.1
[0077] The accessories of the braces are made of polyurethane material with a water absorption rate of 100%, and the properties of the material are listed in Table 3. The accessories can be freely combined with any part of the braces. It is soaked in anti-inflammatory and antibacterial drugs, and after being saturated with water, it is taken out and dried. After the braces are put into the mouth, the drugs in the accessories play a slow release role, which can be used for the prevention and treatment of oral problems such as oral ulcers and swollen gums.
[0078] Table 3
[0079]
[0080] The structural diagram of the orthodontic appliance including orthodontic appliance accessories in this embodiment is as follows: Figure 2 , wherein the orthodontic appliance attachment 3 is attached to the orthodontic appliance 4.
[0081] The preparation method of the orthodontic appliance attachment of this embodiment is injection molding, and the injection molding temperature is 195°C.
[0082] Example 3.2
[0083] The accessories of the orthodontic appliance are made of polyamide material with a water absorption rate of 70%. The properties of the material are listed in Table 3. The accessories can be freely combined with any part of the orthodontic appliance. It is soaked in a solution containing aromatics, and after it is saturated with water, it is taken out and dried. After the orthodontic appliance is put into the mouth, the aromatic components in the accessories play a slow release role, which can freshen the breath.
[0084] The structural diagram of the orthodontic appliance including orthodontic appliance accessories in this embodiment is as follows: Figure 2 , wherein the orthodontic appliance attachment 3 is attached to the orthodontic appliance 4.
[0085] The preparation method of the orthodontic appliance attachment of this embodiment is injection molding, and the injection molding temperature is 195°C.
[0086] Example 3.3
[0087] The accessories of the braces are prepared using a hydrogel material with a water absorption rate of 30%. The properties of the material are listed in Table 3. The accessories can be freely combined with any part of the braces. It is soaked in anti-inflammatory and antibacterial drugs, and after being saturated with water, it is taken out and dried. After the braces are worn in the mouth, the drugs in the accessories play a slow release role, which can be used for the prevention and treatment of oral problems such as oral ulcers and swollen gums.
[0088] The structural diagram of the orthodontic appliance including orthodontic appliance accessories in this embodiment is as follows: Figure 2 , wherein the orthodontic appliance attachment 3 is attached to the orthodontic appliance 4.
[0089] The preparation method of the orthodontic appliance attachment of this embodiment is photocuring.
Claims
1. A dental instrument, characterized in that: The water-absorbing material comprises a water-absorbing material, and the water absorption rate of the water-absorbing material is 5%-100%.
2. The dental apparatus according to claim 1, wherein: The hardness of the water-absorbing material before water absorption is Shore 20D-80D; And / or, the tensile strength of the water-absorbing material after absorbing water is 5-50 MPa.
3. The dental apparatus according to claim 1, wherein: The water-absorbing material is polyurethane, polyamide or hydrogel; Wherein, the density of the polyurethane is preferably>1g / cm 3 , for example, 1.1 g / cm 3 ; Wherein, the relative molecular weight of the polyurethane is preferably 50,000-300,000; Wherein, the polyurethane material preferably has biocompatibility.
4. The dental apparatus according to claim 1, wherein: The dental apparatus is a dental brace, which comprises N layers, N≥1, at least one of which comprises a water-absorbing material, and the water absorption rate of the water-absorbing material is 5%-50%.
5. The dental apparatus according to claim 4, wherein: N=2, the first layer and the second layer are arranged in the direction away from the teeth; Wherein, the first layer comprises a water-absorbing material and / or the second layer comprises a water-absorbing material.
6. The dental apparatus according to claim 5, wherein: When both the first layer and the second layer include water-absorbing materials, the water-absorbing materials in the first layer and the water-absorbing materials in the second layer meet one or more of the following conditions: (a) the water absorption rate of the water-absorbing material in the first layer and the water-absorbing material in the second layer is independently 5% to 20%; (b) the tensile strength of the water-absorbing material in the first layer and the water-absorbing material in the second layer after absorbing water is independently 10-40 MPa; (c) The hardness of the water-absorbent material in the first layer and the water-absorbent material in the second layer before water absorption is independently 40-50 Shore D.
7. The dental apparatus according to claim 5, wherein: The first layer includes a water-absorbing material, the water absorption rate of the water-absorbing material in the first layer is 5%-20%; the tensile strength of the water-absorbing material in the first layer after water absorption is 10-40 MPa; the hardness of the water-absorbing material in the first layer before water absorption is Shore 40-50D; Alternatively, the second layer includes a water-absorbing material, the water absorption rate of the water-absorbing material in the second layer is 5%-20%; the tensile strength of the water-absorbing material in the second layer after water absorption is 10-40MPa; the hardness of the water-absorbing material in the second layer before water absorption is Shore 70-85D.
8. The dental apparatus according to claim 4, wherein: Where N=1, the water-absorbing material satisfies one or more of the following conditions: (a) the water absorption rate of the water-absorbing material is 10%-50%; (b) the hardness of the water-absorbing material before water absorption is 30-45D on Shore A; (c) The tensile strength of the water-absorbing material after absorbing water is 10-40 MPa.
9. The dental apparatus according to claim 1, wherein: The dental instrument is a jaw pad connecting hose, and the jaw pad connecting hose includes a water-absorbing material, and the water absorption rate of the water-absorbing material is 10%-30%, for example, 20%; Wherein, the hardness of the water-absorbing material before absorbing water is preferably Shore 40-50D; Wherein, the tensile strength of the water-absorbing material after absorbing water is preferably 5-50MPa; Wherein, the thickness of the jaw pad connecting hose is preferably 0.5 mm.
10. The dental apparatus according to claim 1, wherein: The dental device is an orthodontic appliance accessory, and the orthodontic appliance accessory includes a water-absorbing material, and the water absorption rate of the water-absorbing material is 30%-100%, for example, 100%; Wherein, the hardness of the water-absorbing material before water absorption is preferably Shore 30-40D; Wherein, the tensile strength of the water-absorbing material after absorbing water is preferably 10-50 MPa.
11. The dental apparatus according to claim 1, wherein: The dental instrument further comprises a functional unit adsorbed in the structure of the water-absorbing material; wherein the functional unit is preferably a functional drug solution or a dry functional drug.
12. A method for preparing a dental instrument according to any one of claims 1 to 11, characterized in that: It includes the following steps: The water-absorbing material is used to form at least a portion of the dental appliance.
13. The method for preparing a dental instrument according to claim 12, wherein: It also includes the step of applying a functional unit in the structure of the water-absorbing material of the dental instrument; preferably, the method of applying includes soaking the dental instrument in a functional drug solution; more preferably, after soaking, it also includes the step of drying to obtain dry functional drugs.