An accessory module and a method for manufacturing the same, and a prefabricated accessory template

Abstract

The application discloses an accessory module, which comprises a body, an accessory, a separator and a retaining member, the body is provided with a containing cavity, the accessory is arranged in the containing cavity, the separator covers the containing cavity and separates the accessory in the containing cavity, and the containing cavity is further provided with an auxiliary retaining part in the circumferential direction, and the retaining member is arranged on the surface of the auxiliary retaining part which is opposite to the separator. The application further discloses a preparation method of the accessory module and a prefabricated accessory template comprising the accessory module. The accessory module and the prefabricated accessory template can provide a standard accessory for a patient in tooth correction, so that the accessory is more matched with a clear aligner, better correction effect is obtained, the patient is more comfortable in the correction process, and the correction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dental correction, in particular to an attachment template, and more particularly to an attachment module and a preparation method thereof, and a prefabricated attachment template comprising the attachment module. BACKGROUND

[0002] Traditional tooth correction mainly sets brackets and arch wires on the surface of the teeth to play a correction role, and is corrected by torsion and displacement. In order to meet the needs of patients, the correction equipment is transferred from the lip side to the tongue side, but this method requires higher requirements for doctors and greater damage to the patient's oral cavity, not only the foreign body sensation is enhanced, but also the cost is higher. With the progress of technology, invisible correction is more and more accepted and used by patients. The bracketless invisible correction device is a computer-aided design and manufacturing transparent elastic material active correction device. It is a sequence of continuous correction devices, which can move the teeth in a small range to achieve the purpose of tooth correction. The correction device not only can control the size of the correction force, but also can control the time of the correction force. Different correction stages can only move some teeth, while other teeth act as anchorage, so as to complete the correction of teeth. In the field of invisible correction, the attachment plays an auxiliary tooth movement and auxiliary correction device retention role. The attachment is made of light-cured resin and acts as an auxiliary device attached to the surface of the tooth, which plays an important role in orthodontic treatment.

[0003] In the prior art, in order to set the attachment to the predetermined position of the tooth, a corresponding attachment template is first prepared, the attachment template is provided with a receiving groove matched with the shape of the attachment, and the clinician pours light-cured resin into the receiving groove. In the actual operation process, the clinician needs to apply an acid etching agent to the surface of the tooth where the attachment is added for acid etching treatment, and apply an adhesive to the corresponding position. Then the attachment template filled with light-cured resin is sleeved on the treated tooth row, and finally the resin is cured by irradiating ultraviolet light, and is attached to the tooth to complete the preparation of the attachment. However, the above process needs to be operated manually by the clinician, and the experience of the clinician determines the quality of the prepared attachment. The acid etching and resin filling in the process will produce operation errors, and the result of the attachment preparation is unpredictable. In addition, the above operation has a large labor cost, and the attachment attachment time is long.

[0004] The current manual operation of the clinician to prepare the attachment on the tooth has the following disadvantages:

[0005] First, when the light-cured resin is injected into the accommodating groove of the accessory template, the injection amount of the light-cured resin in this process is uncontrollable, and errors in accessory manufacturing may occur in this process. If the resin filling amount is less, air bubbles or depressions may be generated in the pre-set accommodating groove, resulting in that the shape of the finally prepared accessory is inconsistent with the designed shape, and the designed movement expectation cannot be completed when the accessory is used with the invisible orthodontic device. If the resin filling amount is more, the resin will overflow the accommodating groove, and excess coating will be generated on the surface in contact with the tooth when light curing is performed, so that the actual height of the added accessory is greater than the pre-designed height, which makes the fit of the invisible orthodontic device and the tooth poor when the accessory is used with the invisible orthodontic device, not only reduces the comfort of the patient, but also affects the treatment result.

[0006] Second, in the process of applying the acid etching agent on the tooth surface by the clinician, in order to ensure the firmness of the combination of the accessory on the tooth, the acid etching agent with an area greater than that of the corresponding accessory is applied on the tooth surface, which will cause unnecessary erosion of the tooth area of the patient, greater damage to the patient, and complex operation steps.

[0007] Therefore, in order to make the accessory and the invisible orthodontic device more matched, obtain better correction effect, make the patient more comfortable during the treatment process, and improve the treatment efficiency and facilitate the rapid operation of the doctor, it is urgent to provide a new accessory adding device for the patient in the tooth treatment. SUMMARY

[0008] The application provides an accessory module and a preparation method thereof, and a prefabricated accessory template comprising the accessory module, provides a standard accessory adding device, which not only reduces the chair-side diagnosis and treatment time of the clinician, but also makes the accessory added on the tooth more standard, and obtains better correction effect in the treatment process.

[0009] The technical scheme of the application is as follows:

[0010] The application provides an accessory module, which comprises a body, an accessory, a separator and a retaining member, the body is provided with an accommodating cavity, the accessory is arranged in the accommodating cavity, and the separator covers the accommodating cavity and separates the accessory in the accommodating cavity; the accommodating cavity is also provided with an auxiliary retaining part in the circumferential direction, and the retaining member is arranged on the surface of the auxiliary retaining part opposite to the separator.

[0011] The application also provides a prefabricated accessory template, which comprises a shell and the above-mentioned accessory module, the shell has a plurality of cavities for accommodating teeth, the shell is also provided with an accommodating groove, the accommodating cavity of the body of the accessory module is arranged in the accommodating groove of the shell, and the retaining member of the accessory module fixes the accessory module at the slot opening of the accommodating groove of the shell.

[0012] The application further provides a preparation method of the accessory module.

[0013] Obtaining a digital data model of the accessory;

[0014] Generating an accessory model according to the digital data model of the accessory;

[0015] Pressing the body with the accommodating cavity on the film according to the accessory model by using a hot pressing technology;

[0016] Filling the accessory in the accommodating cavity;

[0017] Fixing the isolation piece on the surface of the accommodating cavity;

[0018] Fixing the retention piece on the side of the body away from the tooth and surrounding the accommodating cavity.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] First, the accessory module of the application is used to preform the accessory in the accessory template into small units by setting the accessory module, and the accessory module is fixed to the shell of the accessory template in use; this structure mode and setting method are preformed, and the preformed accessory module is filled with a predetermined amount of accessory, so that the pre-filled accessory avoids the problem that the amount of accessory is difficult to accurately control due to the on-site injection of accessory material by the clinician;

[0021] The preformed accessory template of the application is used to make the shell of the accessory template first, and then set the accessory module in the form of the above, so that the amount and position of the accessory are controllable and accurate, the position and orientation of the accessory relative to the contact surface on the invisible orthodontic device are matched, the invisible orthodontic device is correctly used, the efficiency of the invisible orthodontic device is improved, the matching position is correct, the treatment effect is ensured, and the comfort of the patient wearing is increased; the instability problem of manually injecting the accessory into the accommodating groove is solved, and the operation time during treatment is saved.

[0022] Second, the accessory module of the application is preferably pre-set with an acid-etched layer, so that the size of the acid-etched area on the tooth surface can be accurately controlled; and there is no disadvantage of excessive erosion of the tooth surface.

[0023] Third, the accessory module of the application is preferably pre-set with an adhesive layer, so that the amount of adhesive and the coverage area on the tooth surface can be accurately controlled.

[0024] Fourth, the application further provides a preparation method of the accessory module, which realizes the successful preparation of the accessory module.

[0025] Of course, implementing any product of the present application does not necessarily require that all of the above-mentioned advantages be achieved at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Structure diagram of the accessory template shell of the embodiment of the present application;

[0027] Figure 2 A-A sectional view of Figure 1

[0028] Figure 3 Schematic diagram of the accessory module cooperating with the accessory template of the embodiment of the present application;

[0029] Figure 4 Top view of the accessory module of the embodiment of the present application;

[0030] Figure 5 Sectional view of the accessory module of the embodiment 1 of the present application, which is one embodiment of the B-B' sectional view of Figure 4

[0031] Figure 6 Sectional view of the accessory module of the embodiment 2 of the present application, which is another embodiment of the B-B' sectional view of Figure 4 DETAILED DESCRIPTION The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0032] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] ​​In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] When facing the technical problem of the present application, the inventors thought that if there is a prefabricated accessory module for the clinician to operate in practice without changing the existing accessory template, not only the time of the clinician and the patient chair can be shortened, but also the controllability of the position and shape of the accessory is better.

[0036] Please refer to Figure 1 The present application provides a prefabricated accessory template, which comprises a shell 10, the shell 10 has a plurality of cavities for accommodating teeth, and the shell 10 further has one or more accommodation grooves 20, and the accommodation grooves 20 are provided with prefabricated accessory modules.

[0037] Specifically, in order to prepare the shell 10, the intraoral scanning can be used to obtain the digital model of the dental arch, or the traditional intraoral impression method can be used to obtain the digital model of the dental arch, the specific method is to take the impression of silicone rubber, prepare the positive model of the plaster model, and scan the positive model to generate the digital model of the dental arch. After obtaining the digital model of the dental arch, the model is repaired and the incisors are processed to form a digital tooth model. According to the actual situation of the digital tooth model, a tooth treatment scheme is generated, and the generation process of the scheme adds corresponding accessories on the digital model of the tooth. Then, the direct 3D printing method is used to print and manufacture the shell 10 of the accessory template. Alternatively, the traditional film pressing method is used to manufacture the shell 10 of the accessory template, and the specific method is to 3D print the digital tooth treatment model, and then press the film on the dental arch model by using the film pressing method. The cut film is cut along the gum line, or 1-2mm above or below the gum line. The cut shell 10 is polished until it can be worn. At this time, the shell 10 not only wraps the tooth, but also has corresponding accommodation grooves 20 corresponding to the accessories, and the accommodation grooves 20 can accommodate the corresponding accessories.

[0038] Please refer to Figure 2Fig. 2 shows a schematic view of the attachment module set in the shell 10, the attachment module comprising a protruding accommodating cavity 1021, and the accommodating cavity 1021 is provided with the attachment 5. The prefabricated attachment template of the embodiment is made by fixing the accommodating cavity 1021 of the attachment module in the accommodating groove 20 of the shell 10. In actual use, the shape of the attachment is various due to the need of use, in order to form the attachment with different shapes, the accommodating cavity 1021 is set according to the required shape of the attachment, and the shape of the accommodating groove 20 can be the same as or different from the shape of the accommodating cavity 1021. For example, for the prefabricated solid attachment, the shape of the accommodating groove 20 can be different from the shape of the accommodating cavity 1021, as long as it can accommodate the accommodating cavity 1021 and the attachment therein; for the attachment to be solidified, since the attachment is in a fluid state, the shape of the accommodating groove 20 needs to be consistent with the shape of the accommodating cavity 1021, and therefore the shape of the accommodating groove 20 is designed according to the shape of the attachment and the shape of the accommodating cavity 1021, specifically, the accommodating groove 20 can be in an elliptical shape, a vertical rectangular shape, a triangular shape, etc. consistent with the attachment.

[0039] The present application firstly prefabricates the attachment in the attachment module, and then fixes the attachment module in the accommodating groove of the shell of the attachment template, so that the injection process of the attachment is controlled in advance before the treatment operation, the errors caused by the manual injection of the attachment by the doctor in the current treatment operation and the correction problems caused thereby are solved, and the operation time in the correction is shortened.

[0040] Specifically, the present application provides an attachment module, comprising a body, an attachment, a separation piece and a retaining piece, the body is provided with an accommodating cavity, the attachment is arranged in the accommodating cavity, and the separation piece covers the accommodating cavity and separates the attachment in the accommodating cavity; the accommodating cavity is further provided with an auxiliary retaining part in the circumferential direction, and the retaining piece is arranged on the surface of the auxiliary retaining part opposite to the separation piece. In a preferred embodiment, the accommodating cavity is integrally formed on the body. The attachment is a prefabricated attachment, or the attachment is an attachment to be solidified.

[0041] In a preferred embodiment, the attachment module further comprises an acid-etched layer, which is located on the side of the attachment adjacent to the tooth, specifically between the attachment and the separation piece. The acid-etched layer located on the side of the attachment adjacent to the tooth can be arranged adjacent to the attachment, or other layered structures can be further arranged therebetween.

[0042] The accessory template of the present application, since the etching layer is further arranged on the accessory module, the etching layer is arranged between the isolating piece and the accessory, the isolating piece is directly removed during use, the shell 10 is worn on the tooth row, the etching layer exposed on the shell 10 is in sufficient contact with the tooth to be etched on the tooth row, and the tooth is etched, so that the tooth surface to be etched is accurately positioned by wearing the shell 10, the clinician does not need to search for and position the tooth to be etched on the tooth row, and the etching agent is effectively controlled in the application area, the treatment accuracy of the patient is improved, and the tooth is prevented from being damaged excessively. Moreover, the doctor does not need to manually apply the etching agent on the tooth, the operation process is simplified, and the overall operation time of the doctor is saved.

[0043] Preferably, the etching layer can cover at least the area of the side surface of the accessory adjacent to the tooth, and the arrangement position of the etching layer corresponds to the predetermined position on the tooth.

[0044] In a preferred embodiment, the accessory module further comprises an isolating layer for separating the etching layer from the accessory. The isolating layer can be an isolating film. The isolating film can be a PE film or a CPP film. The arrangement of the isolating layer can prevent the etching layer from corroding and damaging the accessory.

[0045] In some embodiments, the etching layer is formed by an etching agent or an etching film permeated with an etching agent. Specifically, the method for forming the etching layer by the etching agent can be coating, spraying or filling, etc., for example, the etching agent is coated or sprayed on the surface of the other solid film adjacent thereto to form the etching layer, or the etching agent is filled, coated or sprayed in the middle of the film-shaped structure to form the etching layer. The etching agent that can be used can be: a dental enamel etching agent commonly used is a 37% phosphoric acid aqueous solution or gel, or other etching agents that can be used in the mouth; a dentin etching agent can contain one or more of citric acid, ferric chloride, oxalic acid, polyacrylic acid and maleic acid.

[0046] In a preferred embodiment, the accessory module further comprises a bonding layer for bonding with the predetermined position etched on the tooth, the bonding layer is located on the side of the accessory adjacent to the tooth, and specifically between the accessory and the isolating piece. The bonding layer located on the side of the accessory adjacent to the tooth can be arranged adjacent to the accessory, or other layered structures can be arranged between the two. The predetermined position etched on the tooth can be a predetermined position etched by manual operation of the doctor during the treatment operation, or a predetermined position etched by using the etching layer arranged on the accessory template.

[0047] The accessory template of the present application further comprises an adhesive layer between the spacer and the accessory on the accessory module. In use, the spacer is removed directly, the shell 10 is worn on the dentition, the adhesive layer exposed on the shell 10 is in sufficient contact with the acid-etched teeth on the dentition, and the adhesive in the adhesive layer is coated on the teeth, so that the teeth needing to be coated with adhesive are accurately positioned by wearing the shell 10, and the doctor does not need to find and position the teeth on the dentition that need to be coated with adhesive, thereby accurately positioning and effectively controlling the coating area, improving the treatment accuracy of the patient. The doctor does not need to manually apply adhesive on the teeth, simplifying the operation process and saving the overall operation time of the doctor.

[0048] Preferably, the adhesive layer can cover at least the area of the side surface of the accessory adjacent to the teeth, and the setting position of the adhesive layer corresponds to the predetermined position on the teeth.

[0049] In a preferred embodiment, the accessory module further comprises an isolation layer separating the adhesive layer from the accessory. The isolation layer can generally be an isolation film. The isolation film can be a PE film or a CPP film. The setting of the isolation layer can prevent the adhesive layer from adhering to the accessory, causing inaccurate adhesion and damage to the accessory.

[0050] In some embodiments, the adhesive layer is formed by an adhesive or a film permeable to the adhesive. Specifically, the method of forming the adhesive layer by the adhesive can be coating, spraying or filling, etc.; for example, the adhesive is coated or sprayed on the surface of the other solid film adjacent thereto to form the adhesive layer, or the adhesive is filled, coated or sprayed in the film-like structure to form the adhesive layer; the adhesive can be the adhesive of 3M Company.

[0051] In a preferred embodiment, the attachment module further comprises an etching layer for applying etching agent to the predetermined position on the teeth and a bonding layer for bonding with the etched predetermined position on the teeth, the etching layer and the bonding layer are arranged between the spacer and the attachment, the etching layer is arranged close to the spacer, and the bonding layer is arranged close to the attachment. The etching layer is formed by etching agent or an etching film permeable to etching agent. The bonding layer is formed by bonding agent or a bonding film permeable to bonding agent. Specifically, the method for forming the etching layer by etching agent can be coating, spraying or filling, etc., such as coating or spraying the etching agent on the surface of other solid film adjacent thereto to form the etching layer, or filling, coating or spraying the etching agent in the film-like structure to form the etching layer; the method for forming the bonding layer by bonding agent can be coating, spraying or filling, etc., such as coating or spraying the bonding agent on the surface of other solid film adjacent thereto to form the bonding layer, or filling, coating or spraying the bonding agent in the film-like structure to form the bonding layer. The etching agent that can be used can be: a dental enamel etching agent commonly used is 37% phosphoric acid aqueous solution or gel, or other etching agents that can be used in the mouth; a dentin etching agent can contain one or more of citric acid, ferric chloride, oxalic acid, polyacrylic acid, maleic acid. The bonding agent can be the bonding agent of 3M Company, specifically can be 3M AdperTM dental bonding agent.

[0052] The attachment template of the present application, since the bonding layer and the etching layer are further arranged on the attachment module, the etching layer and the bonding layer can be accurately applied on the teeth by wearing the shell 10, thereby accurately positioning and effectively controlling the application area, improving the treatment accuracy of the patient. The doctor does not need to manually apply etching agent and bonding agent on the teeth, simplifying the operation process and saving the overall operation time of the doctor.

[0053] Preferably, the attachment module further comprises a barrier layer separating the etching layer and the bonding layer. The barrier layer can generally be a barrier film. The barrier layer can prevent adverse interaction between the etching layer and the bonding layer. Preferably, the barrier film has the functions of high temperature resistance and corrosion resistance, and can well protect the etching agent and the bonding agent between the films. The barrier layer can be a PE film or a CPP film.

[0054] Preferably, the attachment module further comprises an insulation layer separating the bonding layer and the attachment. The insulation layer can generally be an insulation film. The insulation film can be a PE film or a CPP film. The insulation layer can prevent the bonding layer from possibly damaging the attachment.

[0055] Preferably, the retainer can be a sticky layer. The sticky layer is used to paste the attachment module on the shell 10 of the attachment template, and the specific pasting position is the slot opening of the accommodating slot 20 of the shell 10.

[0056] In some preferred embodiments, the isolation member is an isolation film. The isolation film can have the effect of resisting high temperature and corrosion, and can well protect the etching agent and / or adhesive agent inside. The isolation film can be, for example, a CPP film. CPP film, i.e. cast polypropylene, is also known as unstretched polypropylene film. The isolation member can seal the edge of the slot of the accommodating cavity 1021 (see also Figure 3 ), and can also be provided with a tearable part. When tearing off the isolation member, the tearable part can be held by hand or clamped by an instrument, facilitating tearing off of the isolation member. In actual use, the isolation member can be a waterproof film, which can isolate the accessory, etching layer, adhesive layer, etc. from external contaminants.

[0057] In some embodiments, when the accessory module includes an adhesive layer, if the adhesive layer is adjacent to the adhesive layer serving as a retaining member, a barrier layer is provided between the two. The barrier layer serves to separate the adhesive layer for adhering the accessory to the tooth and the adhesive layer for adhering the accessory module to the shell. The barrier layer can be a PE film or a CPP film.

[0058] Further preferably, the accommodating slot of the shell of the accessory template is also provided with a pre-prepared area for the adhesive layer, which has a pointing effect.

[0059] Preferably, for the accessory module, the isolation member, the barrier layer, and the insulation layer can each be provided with a pre-prepared tear-off area around the accommodating slot of the shell of the accessory template, to help the user to tear off the film at the corresponding part by themselves.

[0060] In some embodiments, the thickness of each layer of film of the accessory module ranges from 0.01 to 0.2 mm.

[0061] For the present application, the accessory can have two forms, one being a pre-formed solid, and the other being an accessory material to be cured, which has a certain flowability and is cured on site when adhered to the tooth. For the first form, the pre-formed solid accessory is formed by ultraviolet curing of the accessory material in a specific shape, which can be directly filled into the accommodating cavity 1021 (see also Figure 3 For the second form, the accessory material to be cured can be filled into the accommodating cavity 1021 in an injection manner, and in actual use, the clinician performs light curing on site.

[0062] In the present application, the structural mode of the added acid-etching layer and the bonding layer has two kinds, one is a film with adsorption function, which can adsorb the acid-etching agent / bonding agent; the other is the corresponding acid-etching agent / bonding agent, which needs to be provided with a separation layer to prevent the mixed fluid from contacting; when the accessory template has both the acid-etching layer and the bonding layer, the film and the agent can be freely combined.

[0063] As can be seen from the above, the present application provides the accessory module as a separate prefabricated part, and makes the accessory module as part of the accessory template. The accessory module can be produced in batches as a whole, which saves the step of injecting the accessory 5 into the shell 10 of the accessory template by the doctor in the existing operation, saves the time for on-site production of the accessory, and improves the efficiency. When the accessory is needed, a suitable accessory module is selected and fixed in the accommodation groove of the shell of the accessory template, the isolation piece is removed, and the acid-etching layer, the bonding layer or the accessory provided in the accessory module is used to realize the acid-etching of the tooth surface, the setting of the bonding layer and the setting of the accessory. Then, the shell 10 is removed, so that a standard accessory is obtained, which is more matched with the subsequent wearing of the orthodontic device, can stably fix the orthodontic device, makes the tooth correction effect better, and makes the wearing of the orthodontic device more comfortable.

[0064] The present application also provides a preparation method of the above-mentioned accessory module, which comprises the following steps:

[0065] obtaining a digital data model of the accessory;

[0066] generating an accessory model according to the digital data model of the accessory;

[0067] pressing the body with the accommodation cavity on the film according to the accessory model by using a hot pressing technology;

[0068] filling the accessory in the accommodation cavity;

[0069] fixing the isolation piece on the surface of the accommodation cavity;

[0070] fixing the retention piece on the side of the body away from the tooth and around the accommodation cavity.

[0071] Specifically, the accessory is a prefabricated solid accessory or a to-be-cured accessory.

[0072] In some embodiments, before covering the surface of the accommodation cavity, the isolation piece further comprises the step of: setting an acid-etching layer on the surface of the accommodation cavity.

[0073] In some embodiments, before covering the surface of the accommodation cavity, the isolation piece further comprises the step of: setting a bonding layer on the surface of the accommodation cavity.

[0074] In some embodiments, the step of covering the surface of the accommodating cavity with the isolation layer is preceded by the step of disposing an adhesive layer on the surface of the accommodating cavity, and the step of covering the adhesive layer with the etching layer.

[0075] In a preferred embodiment, the step of covering the surface of the accommodating cavity with the adhesive film is followed by the step of covering the surface of the adhesive layer with a barrier layer, and the step of covering the barrier layer with the etching layer.

[0076] By the above method, the accessory module of the present application can be successfully prepared, and thus the prefabricated accessory template is successfully prepared.

[0077] Some specific implementation structures of the accessory module used in the prefabricated accessory template are exemplarily given below.

[0078] Example 1

[0079] Please refer to Figure 3 and Figure 4 The accessory module provided in the present embodiment comprises a body 1, an accessory 5, an isolation layer 4 and an adhesive layer 7. The body 1 is integrally formed and has an accommodating cavity 1021. The accessory 5 is disposed in the accommodating cavity 1021. The isolation layer 4 covers the accommodating cavity 1021 and isolates the accessory 5 in the accommodating cavity 1021. An adhesive layer 2 and an etching layer 3 are further disposed between the isolation layer 4 and the accessory 5. The accommodating cavity 1021 is circumferentially provided with an auxiliary retention portion 11. The adhesive layer 7 is disposed on the side of the auxiliary retention portion 11 opposite to the isolation layer 4.

[0080] In the present embodiment, the adhesive layer 2 is an adsorption film adsorbing an adhesive, and the etching layer 3 is an adsorption film adsorbing an etching agent. An isolation layer and a barrier layer can be provided or not provided.

[0081] In a variant embodiment of the structure shown in Figure 4 , the adhesive layer 2 can be removed to obtain an accessory module with the lower layer containing the etching layer 3 and the isolation layer 4.

[0082] In another variant embodiment of the structure shown in Figure 4 , the etching layer 3 can be removed to obtain an accessory module with the lower layer containing the adhesive layer 2 and the isolation layer 4.

[0083] In still another variant embodiment of the structure shown in Figure 4 , the etching layer 3 and the adhesive layer 2 can be removed to obtain an accessory module with the lower layer containing only the isolation layer 4.

[0084] Example 2

[0085] Please refer to Figure 3 and Figure 5As shown, the accessory module of the present embodiment differs from that of Embodiment 1 in that a barrier layer 6 is further provided between the acid-etched layer 3 and the adhesive layer 2, and an insulation layer 8 is further provided between the adhesive layer 2 and the accessory 5.

[0086] In the present embodiment, the acid-etched layer is formed by filling, coating or spraying with an acid-etching agent. The adhesive layer is formed by filling, coating or spraying with an adhesive. Since the acid-etched layer and the adhesive layer have fluidity, a layer structure (barrier layer, insulation layer, etc.) for isolation needs to be provided between the acid-etched layer and the adhesive layer, and between the adhesive layer and the accessory.

[0087] Embodiment 3

[0088] The present embodiment provides a prefabricated accessory template, please refer to Figures 1-6 which comprises a shell and an accessory module, the shell 10 has a plurality of cavities for accommodating teeth, and the shell 10 is further provided with a receiving groove 20, the accessory module is the accessory module described in Embodiment 1 or Embodiment 2, the receiving cavity 1021 of the body of the accessory module is arranged in the receiving groove 20 of the shell 10, and the adhesive layer 7 of the accessory module fixes the accessory module at the slot opening of the receiving groove 20 of the shell.

[0089] Finally, it should be noted that: the above embodiments and implementations are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments or implementation, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. The present application is limited by the claims and their entire scope and equivalents.

Claims

1. An accessory module, characterized in that, The device includes a main body, accessories, a spacer, and a retaining member. The main body has a receiving cavity, the accessories are disposed in the receiving cavity, and the spacer covers the receiving cavity and isolates the accessories within the receiving cavity. The receiving cavity is also provided with an auxiliary retaining part in the circumferential direction, and the retaining member is disposed on the surface of the auxiliary retaining part opposite to the spacer.

2. The accessory module according to claim 1, characterized in that, The accessory module also includes an acid-etched layer located on the side of the accessory adjacent to the tooth.

3. The accessory module according to claim 2, characterized in that, The etched layer can cover at least the area of ​​the side of the accessory adjacent to the tooth.

4. The accessory module according to claim 2 or 3, characterized in that, The accessory module also includes an isolation layer that separates the acid-etched layer from the accessory.

5. The accessory module according to claim 2, characterized in that, The acid-etched layer is formed by filling, coating or spraying with an acid etchant, or by forming an acid-etched film permeated with an acid etchant.

6. The accessory module according to claim 1, characterized in that, The accessory module also includes an adhesive layer for bonding to a predetermined, etched location on the tooth, the adhesive layer being located on the side of the accessory adjacent to the tooth.

7. The accessory module according to claim 6, characterized in that, The adhesive layer can cover at least the area of ​​the side of the accessory adjacent to the tooth.

8. The accessory module according to claim 6 or 7, characterized in that, The accessory module also includes an insulating layer that separates the adhesive layer from the accessory.

9. The accessory module according to claim 6, characterized in that, The adhesive layer is formed by filling, coating or spraying with adhesive, or by forming an adhesive film permeated with adhesive.

10. The accessory module according to claim 1, characterized in that, The accessory module further includes an etching layer for applying an etchant to a predetermined position on the tooth and an adhesive layer for bonding the etched predetermined position to the tooth. The etching layer and the adhesive layer are disposed between the spacer and the accessory, with the etching layer disposed close to the spacer and the adhesive layer disposed close to the accessory.

11. The accessory module according to claim 10, characterized in that, The accessory module also includes a barrier layer that separates the acid-etched layer from the adhesive layer.

12. The accessory module according to claim 10 or 11, characterized in that, The accessory module also includes an insulating layer that separates the adhesive layer from the accessory.

13. The accessory module according to claim 10 or 11, characterized in that, The acid-etched layer is formed by filling, coating or spraying with an acid etchant, or by forming an acid-etched film permeated with an acid etchant; the adhesive layer is formed by filling, coating or spraying with an adhesive, or by forming an adhesive film permeated with an adhesive.

14. A prefabricated accessory template, characterized in that, The device includes a housing and an accessory module. The housing has a plurality of cavities for accommodating teeth and a receiving groove. The accessory module is an accessory module as described in any one of claims 1-13. The receiving cavity of the body of the accessory module is disposed within the receiving groove of the housing, and the retaining member of the accessory module fixes the accessory module to the opening of the receiving groove of the housing.

15. A method for preparing an accessory module as described in any one of claims 1-13, characterized in that, Includes the following steps: Obtain the digital data model of the attachment; Generate an attachment model based on the digital data model of the attachment; The body having the accommodating cavity is pressed onto a diaphragm using hot pressing technology according to the accessory model; The accessory is filled into the accommodating cavity; The isolation element is fixed to the surface of the accommodating cavity; The retainer is fixed on the side of the body away from the teeth and located around the receiving cavity.

16. The method for preparing the accessory module according to claim 15, characterized in that, The attachments are prefabricated solid attachments or attachments to be cured.

17. The method for preparing the accessory module according to claim 15, characterized in that, Before the isolation element covers the surface of the accommodating cavity, the step of: setting an acid etching layer on the surface of the accommodating cavity is included.

18. The method for preparing the accessory module according to claim 15, characterized in that, Before the spacer is covered on the surface of the receiving cavity, the step of: applying an adhesive layer to the surface of the receiving cavity is included.

19. The method for preparing the accessory module according to claim 15, characterized in that, Before the spacer is covered on the surface of the cavity, the method further includes the steps of: applying an adhesive layer to the surface of the cavity, and then covering the adhesive layer with an acid etching layer.

20. The method for preparing the accessory module according to claim 19, characterized in that, After the adhesive layer covers the surface of the accommodating cavity, the method further includes the steps of: covering the surface of the adhesive layer with a barrier layer, and finally covering the barrier layer with the acid etching layer.

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