Wireless tooth whitening device and manufacturing method thereof

Abstract

The invention relates to the technical field of tooth whitening, in particular to a wireless tooth whitening device and a manufacturing method thereof. The device comprises a denture, an electrolytic medium, an electrode, a magnetic coil and a rectifier, the electrolytic medium, the electrode, the magnetic coil and the rectifier are arranged in the denture, the electrode is connected with the electrolytic medium, and the rectifier is arranged between the magnetic coil and the electrode. The electrolytic medium is used for wrapping around teeth and generating free radicals for whitening the teeth when being electrified, the magnetic coil is used for being matched with external magnetic field input equipment to generate alternating current, and the rectifier is used for converting the alternating current generated by the magnetic coil into direct current and transmitting the direct current to the electrode. According to the technical scheme provided by the invention, teeth of a patient can be conveniently whitened.

Description

Technical Field

[0001] The present invention relates to the technical field of teeth whitening, and in particular to a highly wireless teeth whitening device and a manufacturing method thereof. Background Art

[0002] Modern people have an increasing demand for teeth whitening, and related teeth whitening technologies can no longer fully meet modern people's needs for efficiency, safety, and convenience.

[0003] In the related art, teeth whitening technology can be roughly divided into home whitening and clinic whitening. However, the related teeth whitening technology has the problem of cumbersome whitening process.

[0004] Therefore, there is an urgent need to provide a wireless teeth whitening device and a manufacturing method thereof to solve the above technical problems. Summary of the invention

[0005] The invention provides a wireless teeth whitening device and a manufacturing method thereof, which can facilitate teeth whitening for patients.

[0006] In a first aspect, an embodiment of the present invention provides a wireless teeth whitening device, comprising a tooth tray and an electrolyte medium, an electrode, a magnetic coil and a rectifier arranged inside the tooth tray, the electrode being connected to the electrolyte medium, the rectifier being arranged between the magnetic coil and the electrode, the electrolyte medium being used to wrap around the teeth and generating free radicals for whitening the teeth when energized, the magnetic coil being used to cooperate with an external magnetic field input device to generate alternating current, and the rectifier being used to convert the alternating current generated by the magnetic coil into direct current and transmit it to the electrode.

[0007] In a second aspect, an embodiment of the present invention provides a method for manufacturing a wireless teeth whitening device, which is applied to the above-mentioned wireless teeth whitening device, comprising:

[0008] Obtain patient dentition information;

[0009] Based on the dentition information, a dental tray is made;

[0010] The pre-prepared electrolytic medium, electrodes, magnetic coils and rectifiers are installed into the dental tray to obtain a wireless teeth whitening device.

[0011] Beneficial effects:

[0012] According to the wireless teeth whitening device and its manufacturing method provided by the embodiment of the present invention, by arranging an electrolytic medium, an electrode, a magnetic coil and a rectifier inside the dental tray, an external magnetic field input device can be used to generate alternating current, and the alternating current generated by the magnetic coil is converted into direct current by the rectifier and then transmitted to the electrode, so that the electrolytic medium is discharged through the electrode so that the electrolytic medium generates free radicals for whitening teeth when powered on. Therefore, the above technical solution can facilitate the teeth whitening of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be produced in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram showing the structure of a wireless teeth whitening device according to an embodiment of the present invention is shown;

[0015] Figure 2 The Young's modulus of the conductive hydrogels made of target solutes with different concentrations according to the embodiments of the present invention is shown;

[0016] Figure 3 A schematic diagram showing the wireless teeth whitening device according to an embodiment of the present invention before and after bleaching is performed;

[0017] Figure 4 A schematic structural diagram of an external magnetic field input device according to an embodiment of the present invention is shown;

[0018] Figure 5 A flow chart showing a method for manufacturing a wireless teeth whitening device according to an embodiment of the present invention.

[0019] Reference numerals:

[0020] 1- dental tray; 2- electrolytic medium; 3- electrode; 4- magnetic coil. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] like Figure 1As shown, an embodiment of the present invention provides a wireless teeth whitening device, including a mouth tray 1 and an electrolytic medium 2, an electrode 3, a magnetic coil 4 and a rectifier (not shown in the figure) arranged inside the mouth tray 1, the electrode 3 is connected to the electrolytic medium 2, and the rectifier is arranged between the magnetic coil 4 and the electrode 3. The electrolytic medium 2 is used to wrap around the teeth and generate free radicals for whitening the teeth when energized. The magnetic coil 4 is used to cooperate with an external magnetic field input device to generate alternating current. The rectifier is used to convert the alternating current generated by the magnetic coil 4 into direct current and transmit it to the electrode 3.

[0023] In this embodiment, by arranging the electrolytic medium 2, the electrode 3, the magnetic coil 4 and the rectifier inside the dental tray 1, an external magnetic field input device can be used to generate alternating current, and the alternating current generated by the magnetic coil 4 is converted into direct current by the rectifier and then transmitted to the electrode 3, so that the electrolytic medium 2 is discharged through the electrode 3 so that the electrolytic medium 2 generates free radicals for whitening teeth when powered on. Therefore, the above technical solution can facilitate the whitening of patients' teeth.

[0024] In one embodiment of the present invention, the dental tray 1 is made by 3D printing or molding. For example, the dental tray 1 can be made of silicone material. Before making the dental tray 1, it is necessary to obtain three-dimensional information of the dentition, for example, by using oral scanning or CBCT imaging scanning.

[0025] In some embodiments, the electrolyte 2 may be an electrolyte, but in this case, the gap between the dental tray and the teeth is very small, which means that the dental tray needs to be customized. When the electrolyte 2 is a conductive hydrogel, there is no need to consider customizing the dental tray, that is, a limited number of dental trays can be produced for the public. This is because if the electrolyte is used as the electrolyte, in the actual oral application process, the liquid electrolyte is difficult to maintain around the teeth, and leakage is likely to occur, which may have adverse effects on other soft tissues in the oral cavity, so it is necessary to consider how to reduce the leakage of the electrolyte.

[0026] In order to solve this technical problem, in one embodiment of the present invention, the electrolyte medium 2 is a conductive hydrogel, so that the conductive hydrogel fits perfectly with the teeth and whitens the teeth evenly. The conductive hydrogel in the device can fit perfectly with the shape of the teeth, and the hydrogel can be replaced after use, so the device can be used repeatedly.

[0027] It should be noted that when the electrolyte medium 2 is an electrolyte, an electrolyte injection and removal channel needs to be left on the dental tray 1. Considering that free radicals will be generated during the electrolytic whitening process, which may damage the dental tray, an inert coating, such as a polytetrafluoroethylene coating, can be prepared on the inner surface of the dental tray.

[0028] In some embodiments, the electrolyte may be an electrolyte with a relatively stable pH value and high biosafety, such as a sodium sulfate solution, a sodium chloride solution, and a phosphate buffer solution at a physiological concentration.

[0029] In one embodiment of the present invention, the conductive hydrogel is prepared by a target solvent and a target solute, wherein the target solvent includes at least one of phosphate buffer, physiological concentration sodium chloride and physiological concentration sodium sulfate, and the target solute includes at least one of sodium alginate, chitosan and agar.

[0030] In one embodiment of the present invention, the electrode 3 is made of titanium-ruthenium-iridium alloy, platinum or boron-doped diamond, which can ensure the high stability of the electrode 3 and the high electro-oxidation catalytic efficiency.

[0031] In one embodiment of the present invention, the speed and amount of free radical generation can be controlled, so that while achieving teeth whitening, damage to the physiological structure of the tooth surface can be reduced.

[0032] In addition, some related technologies can also use peroxide whitening method, which mainly uses hydrogen peroxide and urea peroxide as substrates, assisted by organic / inorganic catalysts and photodynamic catalysis. This method will uncontrollably produce a large number of free radicals, which will cause a large amount of degradation of organic matter on the tooth surface while whitening the teeth, thereby causing the collapse of the hydroxyapatite columnar structure on the tooth surface, and ultimately leading to adverse effects such as tooth demineralization, decreased hardness, and increased roughness.

[0033] The essence of free radicals is that they are formed by small molecules gaining or losing electrons. Therefore, the inventors considered introducing electrochemical advanced oxidation technology into the field of tooth whitening to improve the efficiency of free radical generation and achieve a good whitening effect. Secondly, electrochemical whitening technology can achieve controllable free radical production. Compared with the traditional whitening method with high-concentration peroxide as the substrate, it can greatly reduce the damage to teeth, thereby reducing the side effects of whitening teeth and reducing the possibility of repeated tooth staining, which is more in line with the patient's psychological expectations for tooth bleaching results. At the same time, based on this technology, it can be prepared into a small wearable device that is easy to carry. Patients can wear it and use it by themselves under the guidance of a doctor, which will reduce the patient's visit time in the hospital. Therefore, efficient and low-damage whitening of teeth can be achieved through this device. Figure 3 As shown in the figure, the teeth are first stained with tannic acid and ferrous sulfate, and then the crown is whitened using a wireless magnetic hydrogel whitening tray. The experimental results show that the whitening tray can achieve whitening of the crown within two hours. That is, the effect before and after bleaching using the wireless teeth whitening device of the embodiment of the present invention can show that the bleaching effect of the device is very good, and the stained teeth can be bleached quickly.

[0034] In one embodiment of the present invention, the controllable factors include at least one of the following: voltage and operating time of the magnetic field input device, type of the electrolytic medium 2, type, area and spacing of the electrodes 3.

[0035] like Figure 4 As shown, the external magnetic field input device is composed of a shell, an input coil, a wire, a smart chip, a power supply, a regulator, and a digital display module. After assembly, it can be worn on the head through a wearable auxiliary device, thereby providing a magnetic field for the whitening tray.

[0036] like Figure 5 As shown, an embodiment of the present invention further provides a method for manufacturing a wireless teeth whitening device, which is applied to the wireless teeth whitening device mentioned in any of the above embodiments, comprising:

[0037] Step S1, obtaining the patient's dentition information;

[0038] Step S2, making a dental tray 1 based on the dentition information;

[0039] Step S3, the pre-prepared electrolyte 2, electrode 3, magnetic coil 4 and rectifier are installed into the dental tray 1 to obtain a wireless teeth whitening device.

[0040] It can be understood that the method embodiment and the device embodiment provided by the present invention are based on the same inventive concept and have the same beneficial effects, and the beneficial effects of the method embodiment will not be elaborated herein.

[0041] In one embodiment of the present invention, the electrolyte medium 2 is a conductive hydrogel;

[0042] The pre-prepared electrolytic medium 2, electrode 3, magnetic coil 4 and rectifier are installed into the dental tray 1, including:

[0043] Install the prepared electrode 3, magnetic coil 4 and rectifier into the dental tray 1 to complete the circuit assembly of the dental tray 1;

[0044] The pre-prepared conductive hydrogel is injected into the interior of the dental tray 1 after the circuit assembly is completed, the conductive hydrogel is cured by a preset curing method, and the excess conductive hydrogel is removed after the curing is completed.

[0045] like Figure 2 As shown, in one embodiment of the present invention, the conductive hydrogel contains a target solute at a concentration of 2-3%, so that the Young's modulus of the conductive hydrogel is between 15000 and 40000 Pa.

[0046] A specific embodiment is described below.

[0047] 1) Design large, medium and small dentition information based on the average dentition data of big data, and export the dentition information into stl3D printing format.

[0048] 2) Using the dentition stl file as a reference, the electrodes are designed to be located on the labial (buccal) and lingual sides of the teeth, with a magnetic input receiving coil inside. The electrodes are located close to the teeth but not in direct contact with them. The overall design of the dental tray is similar to the dentition morphology. The edge of the dental tray does not need to fit the gums, and a 2mm gap is maintained between the dental tray and the teeth to accommodate the hydrogel. The prototype model of the designed dental tray is exported as an stl format file.

[0049] 3) Using silicone as the whitening tray material, the whitening tray shell is prepared by 3D printing.

[0050] 4) Assemble the working electrode and magnetic output coil into the whitening tray shell according to the originally reserved positions.

[0051] 5) Sodium alginate, chitosan and physiological saline solution are used to prepare hydrogel materials (2 wt % sodium alginate and 2 wt % chitosan are mixed evenly in a physiological saline solution at 60 degrees Celsius to obtain a conductive hydrogel precursor).

[0052] 6) Inject the hydrogel precursor into the whitening tray obtained in step 4, place the whitening tray in a sealed container containing glacial acetic acid gas, and cure for 24 hours to solidify the hydrogel precursor. After curing, remove excess hydrogel to form a finished tooth whitening tray.

[0053] 7) The external magnetic field input device is composed of a housing, an input coil, a wire, a smart chip, a power supply, a regulator, and a digital display module. After assembly, it is fixed to the outside of the mask to enable wearing on the head and provide a magnetic field for the whitening tray.

[0054] 8) The user selects a suitable type of tray according to the size of his or her own teeth, and then wears the finished teeth whitening tray into the mouth, turns on the power of the external magnetic field input device, so that the output coil in the mouth generates an electric field, and the working electrode generates various free radicals under the action of electrocatalysis, thereby achieving teeth whitening.

[0055] It should be noted that, in this article, relational terms such as primary and secondary are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical factors in the process, method, article or device including the elements.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A wireless teeth whitening device, characterized in that: The invention comprises a dental tray (1), an electrolytic medium (2), an electrode (3), a magnetic coil (4) and a rectifier arranged inside the dental tray (1), wherein the electrode (3) is connected to the electrolytic medium (2), the rectifier is arranged between the magnetic coil (4) and the electrode (3), the electrolytic medium (2) is used to wrap around the teeth and generate free radicals for whitening the teeth when electricity is supplied, the magnetic coil (4) is used to cooperate with an external magnetic field input device to generate alternating current, and the rectifier is used to convert the alternating current generated by the magnetic coil (4) into direct current and transmit it to the electrode (3).

2. The wireless teeth whitening device according to claim 1, characterized in that: The dental tray (1) is made by 3D printing or molding.

3. The wireless teeth whitening device according to claim 1, characterized in that: The electrolytic medium (2) is a conductive hydrogel.

4. The device according to claim 3, characterized in that The conductive hydrogel is prepared by a target solvent and a target solute, wherein the target solvent comprises at least one of phosphate buffer, sodium chloride at physiological concentration and sodium sulfate at physiological concentration, and the target solute comprises at least one of sodium alginate, chitosan and agar.

5. The wireless teeth whitening device according to claim 1, characterized in that: The electrode (3) is made of titanium-ruthenium-iridium alloy, platinum, graphite or boron-doped diamond.

6. The wireless teeth whitening device according to any one of claims 1 to 5, characterized in that: The speed and amount of free radical generation can be controlled.

7. The wireless teeth whitening device according to claim 6, characterized in that: The controllable factors include at least one of the following: the voltage and working time of the magnetic field input device, the type of the electrolytic medium (2), and the type, area and spacing of the electrodes (3).

8. A method for manufacturing a wireless teeth whitening device, characterized in that: A wireless teeth whitening device as claimed in any one of claims 1 to 7, comprising: Obtain patient dentition information; Based on the dentition information, a dental tray (1) is produced; The pre-prepared electrolytic medium (2), electrode (3), magnetic coil (4) and rectifier are installed into the dental tray (1) to obtain a wireless teeth whitening device.

9. The manufacturing method according to claim 8, characterized in that: The electrolyte medium (2) is a conductive hydrogel; The method of placing the pre-prepared electrolytic medium (2), electrode (3), magnetic coil (4) and rectifier into the dental tray (1) comprises: Installing the pre-prepared electrodes (3), magnetic coils (4) and rectifiers into the dental tray (1) to complete the circuit assembly of the dental tray (1); The pre-prepared conductive hydrogel is injected into the interior of the dental tray (1) after the circuit assembly is completed, the conductive hydrogel is cured by a preset curing method, and the excess conductive hydrogel is removed after the curing is completed.

10. The manufacturing method according to claim 9, characterized in that: The conductive hydrogel contains a target solute at a concentration of 2 to 3%, so that the Young's modulus of the conductive hydrogel is between 15,000 and 40,000 Pa.

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