A combined template and method for bonding accessories of invisible dental appliance

Abstract

The present invention provides a combined template and method for bonding accessories of a dental invisible orthodontic appliance, comprising a shell, wherein the shell comprises an acid-etched template and an accessory bonding template sleeved on the acid-etched template, an anti-blue light film is added to the inner side of the acid-etched template, or an organic blue light shielding agent is added when the acid-etched template is made, so as to prevent excess resin from overflowing into the gap between the acid-etched template and the tooth surface during solidification; the crown coating surface of the acid-etched template is also provided with holes; the accessory bonding template is also provided with an outward protrusion for wrapping the accessory, the protrusion is coated on the hole, and the protrusion is filled with resin; the problem of excess resin overflowing into the gap between the acid-etched template and the tooth surface during solidification, which may cause a subsequent appliance to easily detach along the surface of the accessory, the problem of poor accessory morphology and accessory shedding affecting the efficiency of dental correction, and the problem of difficulty for doctors to independently bond accessories is effectively solved.

Description

Technical Field

[0001] The invention belongs to the field of invisible tooth correction, and relates to a combined template and a method for bonding accessories of an invisible tooth correction device. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] The bracketless invisible braces are a computer-aided designed and computer-aided manufactured elastic transparent medical polymer braces that can be worn and removed freely. They have the advantages of being beautiful, comfortable, convenient, predictable, and beneficial to oral hygiene maintenance. They conform to the modern medical treatment concept and provide a new choice for the clinical correction of malocclusion. They are favored by the majority of orthodontists and patients.

[0004] Due to the unique contact between invisible braces and teeth, it is difficult to achieve certain tooth movement methods. Therefore, accessories are often needed to assist in applying correction force to teeth and achieve precise three-dimensional direction control of tooth movement. Attachments are generally made of tooth-colored light-cured composite resin and bonded to teeth by doctors using attachment positioning templates. When bonding attachments, the accuracy of attachment positioning, bonding firmness, and morphological integrity directly affect the efficiency of tooth movement and the achievement of correction goals.

[0005] The following problems often exist in the current clinical attachment bonding. First, due to the large number of attachments and their unstable positions, before the attachments are bonded, the doctor often needs to repeatedly refer to the invisible orthodontic 3D animation program interface or the attachment bonding template to determine the etched area, which is time-consuming and has problems such as inaccurate etched positions leading to bonding failure and excessive etched areas causing unnecessary enamel demineralization. Second, the amount of light-cured resin that forms the attachment is difficult to accurately control. In order to avoid incomplete attachment shape due to too little amount, a slightly larger amount of resin is often added. The excess resin will overflow along the tooth surface and adhere to the tooth surface, causing subsequent orthodontic appliances to easily detach along the attachment surface.

[0006] To avoid this situation, the current clinical methods include using a needle to open a window at the template attachment site in advance, and using a probe or needle to remove excess resin flash after bonding the attachment. These treatments will increase the operation time, and the rough burrs at the window site of the needle may affect the shape of the attachment. Third, when bonding the attachment, it is necessary to press the attachment bonding template against the tooth surface with a certain pressure under the premise of good moisture isolation, and perform light curing at the same time to prevent the template from warping and causing problems such as poor attachment shape. In the absence of four-handed operation, it is very inconvenient for the doctor to complete it independently. Summary of the invention

[0007] In order to solve the above-mentioned problems, the present invention provides a combination template and method for bonding accessories of dental invisible orthodontic appliances, specifically a combination template and method for accessory etching and accessory bonding for bracketless invisible orthodontic treatment of teeth, which adopts an anti-blue light design to effectively avoid the problem that excess resin overflows into the gap between the etching template and the tooth surface during solidification, causing subsequent orthodontic appliances to easily detach along the surface of the accessory.

[0008] In the first aspect, the present invention provides a combined template for bonding accessories of a dental invisible braces appliance, comprising: a shell, the shell comprising an acid-etched template and an accessory bonding template sleeved on the acid-etched template, an anti-blue light film is added to the inner side of the acid-etched template, the anti-blue light film is used to prevent excess resin from overflowing into the gap between the acid-etched template and the tooth surface during solidification; the crown coating surface of the acid-etched template is also provided with holes; the accessory bonding template is also provided with an outward protrusion for wrapping the accessory, the protrusion is coated on the hole, and the protrusion is filled with resin.

[0009] As an embodiment, the acid-etched template is made of transparent material, and the anti-blue light film on the acid-etched template is obtained after treatment with an organic blue light shielding agent, the organic blue light shielding agent is permanent yellow, transparent yellow or fluorescent yellow, and the organic blue light shielding agent accounts for 0.1%-2% of the total mass of the acid-etched template.

[0010] Furthermore, the accessory bonding template is in an inverted U-shape, the internal space of the accessory bonding template forms an accessory cavity, and an accessory bonding template overflow channel is provided on the top of the accessory bonding template, and the accessory bonding template overflow channel is located on the surface of the accessory cavity for overflowing excess resin. In order to reduce the adverse effect of the overflow channel on the force of the later orthodontic appliance, as a feasible implementation, the accessory bonding template overflow channel can adopt an S-shaped or inclined channel, and the material of the accessory bonding template overflow channel can be composed of a material with a higher hardness.

[0011] Furthermore, the accessory bonding template overflow channels are 2 to 4 overflow channels with a diameter of 0.3 mm and a cylindrical shape. The channels are polished to avoid roughness and are evenly distributed on the accessory cavity surface corresponding to the accessory bonding template.

[0012] Furthermore, the accessory bonding template is in a non-fully wrapped form, and the width of the buccal / lingual connection portion of the accessory bonding template is 1-2 mm wider than the maximum mesial and distal width of the accessory; the inner surface of the occlusal surface of the accessory bonding template is designed to have an occlusal surface shape that matches the occlusal surface of the acid-etched template, and the outer surface of the occlusal surface is a thickened plane with a thickness of 1-3 mm in the posterior teeth area and 2-10 mm in the anterior teeth area.

[0013] Furthermore, an engaging portion is provided on the edge of the accessory bonding template, and the engaging portion is used to connect the acid etching template.

[0014] Further, the fitting part is a flange connecting the attachment bonding template and the acid etching template, and the shape of the flange is adapted to the corresponding attachment shape, such as a rectangle, an ellipse, a wedge or a teardrop. As a specific implementation, for example, when the attachment is a rectangular structure, the flange is L-shaped, and the acid etching template is fitted inside the L-shaped flange; when the attachment is a hemispherical shape such as a teardrop, the flange is annular, and the acid etching template is fitted inside the annular flange.

[0015] Furthermore, the occlusal surface of the accessory bonding template is thicker than the side surface to avoid the template from warping during occlusion.

[0016] In a second aspect, the present invention provides a method for preparing a combined template for bonding an accessory of a dental invisible orthodontic appliance as described in the first aspect, comprising:

[0017] The invisible correction 3D animation design scheme is used in the computer to generate the digital model of the corresponding acid-etched template and accessory bonding template;

[0018] The accessory acid etching and accessory bonding templates are printed out with the help of 3D printing technology.

[0019] In a third aspect, the present invention provides a method for bonding an accessory of a combined template for bonding an accessory of a dental invisible orthodontic appliance as described in the first aspect, comprising:

[0020] A first acid-etched template and a second acid-etched template are configured, wherein the first combined template is the acid-etched template in the combined template for bonding the attachment of the invisible tooth appliance as described in the first aspect, and the second acid-etched template has the same structure as the first acid-etched template, wherein the second acid-etched template is an acid-etched template without adding an anti-blue light film or an organic blue light shielding agent;

[0021] Try on the first acid-etched template, the second acid-etched template, the accessory bonding template and the first set of braces and check; do not remove the first acid-etched template, continue to try on the accessory bonding template and check; remove the first acid-etched template and the accessory bonding template, try on the first set of braces and check;

[0022] Clean the tooth surface, put in the second acid-etched template, make it fully in place and close to the tooth surface, apply the acid-etching agent according to the window position of the template, etch for 30-60 seconds, remove the second acid-etched template, wipe it with an alcohol cotton ball, rinse and blow dry with a water vapor from an air gun head, so that the acid-etched tooth surface appears chalky, and put in the first acid-etched template;

[0023] Apply adhesive to the tooth surface, blow it into a thin layer, and expose it to light for 10 seconds;

[0024] When effective separation is required, apply a small amount of separation agent on the inner side of the accessory cavity of the accessory bonding template and the inner side of the template edge that is in close contact with the acid-etched template;

[0025] Filling the inner side of the attachment cavity of the attachment bonding template with resin;

[0026] Put the accessory bonding template in place, and make it fully seated. Keep the patient's upper and lower teeth in a light bite state, so that the accessory bonding template and the first acid-etched template are fully fitted and close to each other;

[0027] Use the invisible correction bonding tool to gently press the outer surface and edge of the accessory cavity of the accessory bonding template to make the excess resin overflow from the overflow channel and remove it; perform light curing from the adjacent surface of the accessory, and illuminate each side for 20 seconds;

[0028] Use a probe to lift the edge of the accessory bonding template to separate it from the tooth surface and the acid-etching template, and then remove the accessory bonding template and the first acid-etching template in turn;

[0029] Use a probe to remove a small amount of uncured or incompletely cured resin on the tooth surface to complete the accessory bonding.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention provides a combined template for bonding accessories of invisible dental orthodontic appliances. By adding a blue light protection film on the inner side of the acid-etched template or adding an organic blue light shielding agent when making the acid-etched template, the template is prevented from curing due to excess resin overflowing into the gap between the acid-etched template and the tooth surface. After the adjacent surface of the accessory is photocured, a probe can be used to gently remove a very small amount of uncured or incompletely cured overflowed resin on the tooth surface to complete the bonding of the accessory, thereby preventing the excess resin from curing due to overflowing into the gap between the acid-etched template and the tooth surface, resulting in the subsequent appliance being easily detached along the surface of the accessory, and the accessory being poorly shaped and falling off, which affects the efficiency of dental correction.

[0032] 2. The present invention increases the thickness of the occlusal surface material of the accessory bonding template and increases the elasticity of the material to avoid the template from lifting up during occlusion. At the same time, due to the wedge effect, the transition from thin to thick from the posterior teeth to the anterior teeth is designed, which effectively solves the problem of difficulty for doctors to independently bond accessories.

[0033] 3. The present invention provides an engaging portion at the end of the accessory bonding template, and the acid-etched template is engaged inside the engaging portion to strengthen the retention of the accessory bonding template when the two templates are superimposed. Good retention of the accessory bonding template is a guarantee of the integrity and accuracy of the accessory shape.

[0034] 4. The accessory bonding template adopted in the present invention is in a non-fully wrapped form. The width of the buccal / lingual connection part of the accessory bonding template is 1-2mm wider than the maximum mesial and distal width of the accessory. The 1-2mm edge extension ensures the morphological integrity and accuracy of the bonded accessory, while avoiding the problem of easy breakage caused by the accessory bonding template being too narrow. The non-fully wrapped form can reduce the difficulty of removing the accessory bonding template and reduce the template deformation and accessory falling off that occur when removing the accessory bonding template.

[0035] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0038] Figure 1 A side structural diagram of a first form of a combined template for bonding an accessory of a dental invisible orthodontic appliance of the present invention;

[0039] Figure 2 A side structural diagram of a second form of a combined template for bonding an accessory of a dental invisible orthodontic appliance of the present invention;

[0040] Figure 3 It is a structural schematic diagram of the attachment bonding template of the present invention;

[0041] Figure 4 It is a structural schematic diagram of the acid etching template of the present invention;

[0042] Figure 5 It is a structural schematic diagram of the acid-etched template of the present invention after the attachment bonding template is sleeved;

[0043] Among them: 1. The overflow channel of the accessory bonding template; 2. The accessory bonding template; 3. The edge of the accessory bonding template; 4. The acid-etching template; 5. The tooth surface; 6. The fitting part between the acid-etching template and the accessory bonding template; 7. The corresponding outer surface of the accessory cavity of the accessory bonding template; 8. The connecting part between the occlusal surface of the accessory bonding template and the buccal / lingual surface; 9. The occlusal surface of the accessory bonding template; 10. The occlusal surface of the acid-etching template; 11. The acid-etching template and the corresponding accessory window opening. DETAILED DESCRIPTION

[0044] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0045] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] Embodiment 1:

[0048] like Figure 1-5 As shown, this embodiment provides a combined template for bonding accessories of a dental invisible orthodontic appliance, comprising a shell, wherein the shell comprises an acid-etched template and an accessory bonding template sleeved on the acid-etched template, and the crown-coating surface of the acid-etched template is also provided with holes;

[0049] The accessory bonding template is also provided with an outward protrusion for wrapping the accessory, the protrusion covers the hole, and the protrusion is filled with resin;

[0050] Add a blue light protection film on the inner side of the acid-etched template; the blue light protection film is used to prevent excess resin from overflowing into the gap between the acid-etched template and the tooth surface during solidification.

[0051] Specifically, the light curing lamp currently used for curing photosensitive resin in oral treatment is blue light with a wavelength range of 400 to 500nm. When excess resin overflows into the gap between the acid etching template and the tooth surface, it solidifies, making it impossible to effectively remove it, affecting subsequent correction. In this regard, the present embodiment attaches an anti-blue light film to the inner side of the accessory acid etching template. When preparing the anti-blue light film, yellow dyes or pigments such as permanent yellow, transparent yellow, and fluorescent yellow are added.

[0052] As an embodiment, the steps of making the acid etching template and the accessory bonding template include: using an invisible correction 3D animation design plan in a computer to generate a digital model of the corresponding acid etching template and the accessory bonding template, and printing the accessory acid etching and accessory bonding templates with the help of 3D printing technology.

[0053] As an implementation mode, the acid-etched template is made of transparent material, and the anti-blue light film on the acid-etched template is obtained after treatment with an organic blue light shielding agent, the organic blue light shielding agent is permanent yellow, transparent yellow or fluorescent yellow, and the organic blue light shielding agent accounts for 0.1%-2% of the total mass of the acid-etched template.

[0054] As an implementation mode, a fitting portion is provided at the end of the accessory bonding template, the accessory bonding template is an inverted U-shape, the internal space of the accessory bonding template forms an accessory cavity, an accessory bonding template overflow channel is provided at the top of the accessory bonding template, the accessory bonding template overflow channel is located on the surface of the accessory cavity, and is used to overflow excess resin, and a fitting portion is provided at the edge of the accessory bonding template, and the fitting portion is used to connect the acid etching template.

[0055] The accessory bonding template has 2 to 4 overflow channels with a diameter of 0.3 mm and a cylindrical shape. The channels are polished to avoid roughness and are evenly distributed on the accessory cavity surface corresponding to the accessory bonding template.

[0056] The mating part is the flange connecting the accessory bonding template and the acid etching template. The shape of the flange is adapted to the specific shape of the accessory, such as rectangle, ellipse, wedge, and teardrop. For example, when the accessory is a rectangular structure, the flange is L-shaped, and the acid etching template is embedded in the inner side of the L-shaped flange; when the accessory is a hemispherical shape such as a teardrop, the flange is annular, and the acid etching template is embedded in the inner side of the annular flange, thereby strengthening the retention of the accessory bonding template when the two templates are superimposed. The good retention of the accessory bonding template is a guarantee of the integrity and accuracy of the accessory shape.

[0057] As an implementation method, the accessory bonding template is in a non-fully wrapped form, and the width of the buccal / lingual connection part of the accessory bonding template is 1-2mm wider than the maximum mesial and distal width of the accessory. The 1-2mm edge extension ensures the morphological integrity and accuracy of the bonded accessory, while avoiding the problem of easy breakage caused by the accessory bonding template being too narrow. The non-fully wrapped form can reduce the difficulty of removing the accessory bonding template, and reduce the template deformation and accessory falling off that occur when removing the accessory bonding template.

[0058] At present, the accessory bonding template is not designed to be fully wrapped, and the design of the interlocking structure of the accessory bonding template and the acid etching template is to reduce the difficulty of removing the accessory bonding template and reduce the deformation of the template and the falling off of the accessory when removing the accessory bonding template, while ensuring the integrity and accuracy of the accessory shape and the integrity of the accessory bonding template to the greatest extent.

[0059] As an implementation method, the occlusal surface of the accessory bonding template is thicker than the side surface to avoid the template from lifting during occlusion. The thickened surface should be as soft as possible. At the same time, due to the wedge effect, the transition from thin to thick from the posterior teeth to the anterior teeth is designed.

[0060] As an implementation mode, the accessory cavity portion of the accessory bonding template has various shapes, such as rectangular, elliptical, wedge-shaped, teardrop-shaped, etc.

[0061] As an embodiment, the acid-etching template and the accessory bonding template are two separate independent templates. When combined, the size of the acid-etching template can well wrap the patient's tooth surface, and the size of the accessory bonding template can well wrap the acid-etching template. When the two templates are combined to wrap the tooth surface, the space between the inner surface of the accessory cavity of the accessory bonding template and the tooth surface is the shape and size of the accessory to be bonded (such as Figure 1 shown).

[0062] The acid-etched template is a soft film made of an opaque polymer material with a certain elasticity and blue light protection or poor light transmittance, and its thickness is 1mm. The template at the corresponding part of the attachment is designed with windows in the same form (such as Figure 4 ), the range is 0.5mm larger than the buccal / lingual boundary of the attachment. The occlusal surface design matches the occlusal surface of the teeth (such as Figure 4 ).

[0063] The attachment bonding template is a hard film made of a transparent polymer material with a certain elasticity, and its thickness is 0.5mm. According to the size of the attachment, 2 to 4 overflow channels with a diameter of 0.3mm are set on the surface of the attachment cavity (such as Figure 1 ), design a flange with a thickness of 0.5 mm at the joint with the acid-etched template (such as Figure 1 ), which can be combined with the opening of the acid-etched template (such as Figure 1 ) are interlocked, and the shape and size of the cavity formed between the attachment bonding template and the tooth surface after interlocking is the shape and size of the required attachment. Figure 5 ) protrudes outwards in the form of the outer surface of the attachment, and the edge of the attachment bonding template (such as Figure 5 ) than the outer surface of the corresponding cavity of the accessory (such as Figure 5 ) is enlarged by 1-2 mm and fits well with the accessory bonding template. The occlusal surface of the accessory bonding template and the buccal / lingual connection part (such as Figure 5 ) The mesiodistal width and the edge of the attachment bonding template (such as Figure 5 ) The maximum mesiodistal width is consistent. The inner surface of the occlusal surface is designed to match the occlusal surface of the acid-etched template, and the outer surface of the occlusal surface is a thickened plane (such as Figure 5 ), specifically, the thickness of the posterior teeth area is 1-3mm, and the thickness of the anterior teeth area is 2-10mm. The computer-aided design can be performed with the help of the patient's oral cavity scanned digital model combined with the occlusal relationship.

[0064] The occlusal surface thickness of the accessory bonding template is increased, the material is softer, and it is wedge-shaped, thinner in the posterior area and thicker in the anterior area. It can act as an occlusal pad to prevent the template from warping due to the doctor's failure to press the template tightly against the tooth surface when bonding the accessory, thereby affecting the shape of the accessory. By using the patient's bite force to make the template close to the tooth surface, the doctor can save the pressing operation and the pressing of the template and light curing of the accessory can be carried out at the same time.

[0065] A concave and convex three-point interlocking structure is designed at the connection part of the accessory bonding template and the contact part of the acid etching template to assist the retention of the accessory bonding template. A concave surface can be designed at the three points of the acid etching template, and a convex surface can be designed at the three points of the bonding template. The draft diagram is shown in the three blue points in the figure below.

[0066] First, wear the accessory etching to the affected tooth, perform precise etching, rinse, blow dry and moisture isolation according to the window opening, and then wear the accessory bonding template combination to the etching template that wraps the affected tooth. After it is fully in place, use the patient's bite force to replace the pressure of the medical staff on the template, so that the two templates are fully embedded and closely attached to the tooth surface. The excess resin mainly overflows from the overflow channel of the accessory bonding template. A very small amount of resin overflows along the gap between the template and the tooth surface. Because the tooth surface at the overflow site has not been fully etched in advance and the anti-blue light material of the etching template is blocked, it does not meet the conditions for good light curing of the resin, and will not cure or cure poorly, and then a thin layer of resin flash that is difficult to remove will not be formed on the tooth surface. In addition, the etching template is a 1mm thickened soft film, which is used to increase the embedding area with the flange of the accessory bonding template; a concave-convex three-point embedding structure is set at the connection part of the accessory bonding template and the contact part of the etching template. The concave-convex three-point embedding structure is used to fix the position of the accessory bonding template. The width of the buccal / lingual connection part of the attachment bonding template is 1-2mm wider than the maximum width of the attachment in the mesial and distal directions, ensuring that the bonding template is not easy to break while reducing the difficulty of dislocation. This combined template greatly improves the accuracy of the acid-etched area, the integrity of the attachment bonding shape and size, reduces the iatrogenic damage of tooth demineralization in patients, facilitates the doctor's clinical operation, reduces the bonding failure rate, improves the efficiency and accuracy of attachment bonding, and is conducive to the realization of the goal of invisible correction.

[0067] As an embodiment, the shell is a plurality of dental crown sleeves arranged in a U shape, and the interiors of two connected dental crown sleeves are communicated.

[0068] Embodiment 2

[0069] The present embodiment provides a combined template for bonding accessories of a dental invisible braces, which is different from the first embodiment in that an organic blue light shielding agent is added when the acid-etched template is made, rather than an anti-blue light film. The combined template specifically comprises: a shell, the shell comprising an acid-etched template and an accessory bonding template sleeved on the acid-etched template, an organic blue light shielding agent is added when the acid-etched template is made, and the organic blue light shielding agent is used to prevent excess resin from overflowing into the gap between the acid-etched template and the tooth surface during solidification; the crown coating surface of the acid-etched template is also provided with holes; the accessory bonding template is also provided with an outward protrusion for wrapping the accessory, the protrusion is coated on the hole, and the protrusion is filled with resin;

[0070] The organic blue light shielding agent is permanent yellow, transparent yellow or fluorescent yellow, and the proportion of the organic blue light shielding agent is 0.1%-2% of the total mass of the acid-etched template.

[0071] Specifically, an anti-blue light design is adopted in the acid etching template, and the complementary color of the blue-purple color of the light curing lamp is yellow-orange, that is, the yellow-orange dye or pigment has the ability to absorb blue-purple light. The acid etching template in this embodiment adds permanent yellow, transparent yellow, fluorescent yellow and other yellow dyes or pigments, and a multi-site pigment injection method is adopted on the attachment side (buccal / lingual side) membrane. The specific site is around each hole, and the range is expanded by about 2-3mm. The specific composition and components of the dye or pigment material account for 0.1%-2% of the total mass. For other specific layout methods, please refer to the relevant description of Example 1.

[0072] Embodiment 3

[0073] This embodiment provides a method for completing the attachment bonding of invisible correction using the attachment acid etching and attachment bonding combined template described in the first or second embodiment, including the following steps:

[0074] A first acid-etched template and a second acid-etched template are configured, wherein the first combined template is the acid-etched template in the combined template for bonding the attachment of the invisible dental appliance as described in any one of claims 1 to 9, and the second acid-etched template has the same structure as the first acid-etched template, wherein the second acid-etched template is an acid-etched template without adding an anti-blue light film or an organic blue light shielding agent;

[0075] Try on the first acid-etched template, the second acid-etched template, the accessory bonding template and the first set of braces and check; do not remove the first acid-etched template, continue to try on the accessory bonding template and check; remove the first acid-etched template and the accessory bonding template, try on the first set of braces and check;

[0076] Clean the tooth surface, put in the second acid-etched template, make it fully in place and close to the tooth surface, apply the acid-etching agent according to the window position of the template, etch for 30-60 seconds, remove the second acid-etched template, wipe it with an alcohol cotton ball, rinse and blow dry with a water vapor from an air gun head, so that the acid-etched tooth surface appears chalky, and put in the first acid-etched template;

[0077] Apply adhesive to the tooth surface, blow it into a thin layer, and expose it to light for 10 seconds;

[0078] When effective separation is required, apply a small amount of separation agent on the inner side of the accessory cavity of the accessory bonding template and the inner side of the template edge that is in close contact with the acid-etched template;

[0079] Filling the inner side of the attachment cavity of the attachment bonding template with resin;

[0080] Put the accessory bonding template in place, and make it fully seated. Keep the patient's upper and lower teeth in a light bite state, so that the accessory bonding template and the first acid-etched template are fully fitted and close to each other;

[0081] Use the invisible correction bonding tool to gently press the outer surface and edge of the accessory cavity of the accessory bonding template to make the excess resin overflow from the overflow channel of the accessory bonding template and remove it; perform light curing from the adjacent surface of the accessory, and illuminate each side for 20 seconds;

[0082] Use a probe to lift the edge of the accessory bonding template to separate it from the tooth surface and the acid-etching template, and then remove the accessory bonding template and the first acid-etching template in turn;

[0083] Use a probe to remove a small amount of uncured or incompletely cured resin on the tooth surface to complete the attachment bonding

[0084] Step 1: configuring a first acid-etched template and a second acid-etched template, wherein the first combined template is the acid-etched template in the combined template for bonding the attachment of the invisible tooth appliance described in Example 1 or Example 2, and the second acid-etched template has the same structure as the first acid-etched template, wherein the second acid-etched template is an acid-etched template without adding an anti-blue light film or an organic blue light shielding agent;

[0085] Try on the first acid-etched template, the second acid-etched template, the accessory bonding template and the first set of braces: First, try on the first acid-etched template to check whether it fits tightly against the tooth surface. Secondly, without removing the first acid-etched template, continue to try on the accessory bonding template to check whether the accessory bonding template fits tightly against the acid-etched template and whether the accessory fitting part is appropriate. Finally, remove the first acid-etched template and the accessory bonding template, try on the first set of braces to check whether it fits tightly against the tooth surface. Try on the second acid-etched template to see if it fits properly.

[0086] Step 2: Cleaning and etching of tooth surface. Clean the tooth surface with alcohol cotton balls; put on the second acid-etching template, make it fully in place and close to the tooth surface, apply the acid-etching agent according to the window of the template, and etch for 30 seconds (60 seconds for fluorosis), remove the second acid-etching template, wipe it with alcohol cotton balls, and then use the air gun head to rinse and blow dry; make the etched tooth surface appear chalky; fully isolate it from moisture, and wear the first acid-etching template.

[0087] Step 3: Apply adhesive to the tooth surface. Apply adhesive to the tooth surface, blow it into a thin layer, and expose it to light for 10 seconds.

[0088] Step 4: Apply a separation agent (vaseline). When effective separation is required, apply a small amount of separation agent (vaseline) on the inner side of the accessory cavity of the accessory bonding template and the inner side of the template edge that is in close contact with the acid-etched template to prevent the light-cured composite resin from adhering to the accessory bonding template, and the accessory bonding template from adhering to the accessory acid-etched template.

[0089] Step 5: Fill the inner side of the accessory cavity of the accessory bonding template with resin. Select a light-curing composite resin with appropriate fluidity, fill a slightly excessive amount into the accessory cavity of the accessory bonding template, and press it tightly.

[0090] Step 6: Bond the attachment. Put the attachment bonding template in place. Ask the patient to keep the upper and lower teeth in a light bite state so that the attachment bonding template and the acid-etched template are fully fitted and close. Use the invisible correction bonding tool to gently press the outer surface and edge of the attachment cavity of the attachment bonding template to make the excess resin overflow from the overflow channel of the attachment bonding template and remove it. Perform light curing from the adjacent surface of the attachment, and light each side for 20 seconds.

[0091] Step 7: Bonding is complete. Use a probe to gently lift the edge of the accessory bonding template to separate it from the tooth surface and the first acid-etched template, and then remove the accessory bonding template and the first acid-etched template in turn. Use a probe to gently remove a small amount of uncured or incompletely cured resin on the tooth surface to complete the accessory bonding.

[0092] Embodiment 4

[0093] This embodiment provides a method for preparing a combined template for bonding an accessory of a dental invisible orthodontic appliance as described in Embodiment 1 or Embodiment 2, comprising:

[0094] The invisible correction 3D animation design scheme is used in the computer to generate the digital model of the corresponding acid-etched template and accessory bonding template;

[0095] The accessory acid etching and accessory bonding templates are printed out with the help of 3D printing technology.

[0096] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A combined template for bonding accessories of invisible dental appliances, characterized in that: The invention comprises: a shell, wherein the shell comprises an acid etching template and an accessory bonding template sleeved on the acid etching template, an anti-blue light film is added to the inner side of the acid etching template, and the anti-blue light film is used to prevent excess resin from overflowing into the gap between the acid etching template and the tooth surface during solidification; the crown coating surface of the acid etching template is also provided with holes; the accessory bonding template is also provided with an outward protrusion for wrapping the accessory, the protrusion is embedded in the hole of the acid etching template, and the protrusion is filled with resin; The acid-etched template is made of a transparent material, and the anti-blue light film on the acid-etched template is obtained by treating with an organic blue light shielding agent, the organic blue light shielding agent is permanent yellow, transparent yellow or fluorescent yellow, and the organic blue light shielding agent accounts for 0.1%-2% of the total mass of the acid-etched template; The attachment bonding template is in a non-fully wrapped form, and the width of the buccal / lingual connection portion of the attachment bonding template is the maximum width of the attachment at the mesial and distal ends plus 1-2 mm; The inner surface of the accessory bonding template is designed to match the occlusal surface of the acid-etched template, and the outer surface of the occlusal surface is a thickened plane with a thickness of 1-3mm in the posterior teeth area and 2-10mm in the anterior teeth area.

2. The combined template for bonding accessories of a dental invisible orthodontic appliance according to claim 1, characterized in that: The accessory bonding template is in an inverted U shape, the internal space of the accessory bonding template forms an accessory cavity, the top of the accessory bonding template is provided with an accessory bonding template overflow channel, the accessory bonding template overflow channel is located on the surface of the accessory cavity, and is used to overflow excess resin.

3. The combined template for bonding accessories of a dental invisible orthodontic appliance according to claim 2, characterized in that: The accessory bonding template overflow channels are 2 to 4 overflow channels with a diameter of 0.3 mm and a cylindrical shape. The channels are polished to avoid roughness and are evenly distributed on the accessory cavity surface corresponding to the accessory bonding template.

4. The combined template for bonding accessories of a dental invisible orthodontic appliance according to claim 1, characterized in that: The edge of the accessory bonding template is provided with an engaging portion, and the engaging portion is used for connecting the acid etching template.

5. The combined template for bonding accessories of a dental invisible orthodontic appliance according to claim 4, characterized in that: The engaging part is a flange connecting the attachment bonding template and the acid etching template, and the shape of the flange is adapted to the shape of the corresponding attachment, which is rectangular, elliptical, wedge-shaped or teardrop-shaped.

6. A combined template for bonding accessories of invisible dental appliances, characterized in that: It comprises: a shell, the shell comprises an acid etching template and an accessory bonding template sleeved on the acid etching template, an organic blue light shielding agent is added when the acid etching template is made, the organic blue light shielding agent is used to prevent excess resin from overflowing into the gap between the acid etching template and the tooth surface during solidification; the crown coating surface of the acid etching template is also provided with holes; the accessory bonding template is also provided with an outward protrusion that wraps the accessory, the protrusion is embedded in the hole of the acid etching template, and the protrusion is filled with resin.

7. A method for preparing a combined template for bonding an accessory of a dental invisible orthodontic appliance as claimed in any one of claims 1 to 6, characterized in that: include: The invisible correction 3D animation design scheme is used in the computer to generate the digital model of the corresponding acid-etched template and accessory bonding template; The accessory etching and accessory bonding templates are printed out with the help of 3D printing technology.

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