CN111012530A - Method and mould for manufacturing invisible appliance with complex structure accessory - Google Patents

Abstract

The application discloses a method and a die for manufacturing an invisible appliance with a complex structure accessory, which comprises the steps of establishing an oral cavity three-dimensional model, forming a complex structure accessory model on teeth of the oral cavity three-dimensional model, separating the three-dimensional oral cavity model and the complex structure accessory model into mutually independent parts, carrying out hot pressing on an appliance diaphragm on an appliance die, and separating the die from an appliance rough blank to manufacture an invisible appliance finished product; the mould of the invisible orthodontic appliance comprises a dental solid model and an accessory attached to teeth of the dental solid model, wherein the accessory is detachably connected with the dental solid model. The invention has the advantages that the local part of the accessory with the complex structure is separated from the tooth jaw model main body, so that the appliance can be easily separated from the tooth jaw model in the demoulding link, the condition that the appliance can not be demoulded or is seriously deformed or broken is avoided, and the manufacturing problem of the invisible appliance with the accessory with the complex structure is solved.

Description

Method and mould for manufacturing invisible appliance with complex structure accessory

Technical Field

The invention relates to the field of orthodontic, in particular to a method for manufacturing an invisible appliance with an accessory of a complex structure and a die used in the manufacturing method.

Background

The dentognathic deformity is a common oral disease and has high morbidity, but the traditional bracket correcting device has the condition that a steel wire is exposed, so that the attractiveness is influenced, the lip can be scraped to hurt the lips, meanwhile, the correcting device needs to be adhered to the teeth for a long time, the cleaning of the teeth can be difficult in the whole correcting process, the problems can be overcome by adopting the bracket-free invisible correcting device, and the attractiveness is not influenced when the bracket-free invisible correcting device is worn because the bracket-free invisible correcting device does not need a bracket and an arch wire; and the bracket-free invisible appliance can perform staged planning on a treatment scheme for correcting patients, and a batch of appliances are manufactured at each stage and are provided for the patients to wear, so that the complicated process of periodic re-diagnosis is reduced, the operation time beside a chair is short, and the clinical operation is simplified.

The existing method for manufacturing the bracket-free invisible appliance is to generate a data model for simulating the states of teeth and gum based on the original states of the teeth and gum of a patient, manufacture a solid jaw model for simulating the state of the teeth based on the data model, and perform film coating and demolding on the jaw model to finish the manufacture of the invisible appliance.

Disclosure of Invention

The invention aims to provide a method and a die for manufacturing an invisible appliance with an accessory of a complex structure, which can be used for demolding the invisible appliance with large bubble convexity and/or complex shape so as to finish the manufacturing of the invisible appliance.

The manufacturing method of the invisible appliance with the complex structure accessory comprises the steps of establishing an oral cavity three-dimensional model, and is characterized in that: the method comprises the steps of forming a complex structure accessory model on teeth of a three-dimensional oral cavity model, or attaching the formed complex structure accessory model to the teeth, separating the three-dimensional oral cavity model and the complex structure accessory model into mutually independent parts, respectively manufacturing the three-dimensional oral cavity model and the complex structure accessory model into entities, assembling the entity complex structure accessory to an entity oral cavity model to form an appliance mould, hot-pressing an appliance diaphragm to the appliance mould to form an appliance rough blank, detaching the entity oral cavity model during demoulding, demoulding the appliance rough blank and the entity oral cavity model, then separating the entity complex structure accessory from the appliance rough blank, and manufacturing the appliance rough blank into an invisible appliance finished product. The existing process is adopted for the process of manufacturing the orthodontic appliance rough blank into the invisible orthodontic appliance finished product.

Further, the separating plane of the three-dimensional oral cavity model and the complex structure model is a tooth surface, or the separating plane is outside the tooth surface.

Further, the complex structure accessory is in an irregular shape and comprises a hooking point which is positioned at the cuspid of the upper jaw dental model and protrudes outwards, or upper protrusions which are positioned at two sides of the rear dental area of the upper jaw dental model and/or lower protrusions which are positioned at two sides of the rear dental area of the lower jaw dental model and/or side protrusions which are positioned at the lateral sides of the lower protrusions.

The complex structure accessory plays a key role in correcting the dentognathic deformity, the complex structure accessory is correspondingly designed through a correction scheme, when the upper jaw facing and the lower jaw facing are separated, a lateral bulge positioned at the lower bulge lateral side of the lower jaw facing and a hooking point positioned at the cuspid of the upper jaw facing and protruding outwards are subjected to traction force from a traction piece and are transmitted to the lower jaw facing so as to be transmitted to the lower jaw to enable the lower jaw to move; when the upper jaw dental socket and the lower jaw dental socket are occluded, the upper bulges positioned on two sides of the rear dental area of the upper jaw dental socket and the lower bulges positioned on two sides of the rear dental area of the lower jaw dental socket are in abutting contact, and because the upper bulges are in front of the rear bulges and the lower bulges are in front of the rear bulges, the lower bulges continuously bear the thrust of the upper bulges to the front tops and then are transferred to the lower jaw to enable the lower jaw to move, so that the effect of correcting the dentognathic deformity is achieved.

Further, the main body of the three-dimensional digital dental model and the complex structure accessories of all the parts are cut and separated by a computer according to the requirements of the correction scheme, and the dental jaw model is manufactured for the main body of the three-dimensional digital dental model and the complex structure accessories of all the parts respectively and independently.

Furthermore, the complex structure accessories of each part and the main body of the dental jaw model can be assembled, combined, disassembled and separated, and the complex structure accessories and the main body of the dental jaw model are cut and separated, or the complex structure accessories of each part are cut and separated independently.

The complex structure accessories and the dental jaw model main body are assembled, combined and disassembled through cutting and separating, and the complex structure accessories are assembled, combined and disassembled through cutting and separating. Through the assembly combination and the disassembly separation of accessories with complex structures, hot-pressing film and rapid demoulding can be carried out in the process of manufacturing the invisible appliance.

Furthermore, the accessories of each part with complex structure are assembled and combined with the main body of the dental jaw model through melted wax and/or tenon-and-mortise structures.

Further, the accessories with complex structures of all parts and the main body of the dental jaw model are disassembled and separated through twisting and/or tenon-mortise disassembling.

The main body of the dental jaw model and the complex structure accessories of each part have two segmentation modes, the first mode is that the dental jaw model and the complex structure accessories are segmented together, and the second mode is that the complex structure accessories of each part are segmented separately; when the main body of the dental model and the complex structure accessory are cut together, the complex structure accessory models of all parts and the main body of the dental model are temporarily bonded by wax to be combined; when the complex structure accessories of each part are cut separately, the complex structure accessory models of each part and the tooth molds are combined through the tenon-and-mortise structure, and the complex structure accessory models of each part can be combined and separated only by applying certain torsional force or unlocking the tenon-and-mortise structure during separation.

A mold for an invisible appliance comprising a dental mockup and attachments to teeth of the dental mockup, characterized in that: the accessory is detachably connected with the dental solid model, and when the accessory with a complex structure is combined with the dental solid model, the appliance attached to the mold is prevented from being demolded. The complex structure attachment is an attachment having a convexity so large that separation of the orthosis from the mold is interfered when the mold is removed, or an attachment having a hook, a bent portion, or the like which hinders separation of the orthosis from the mold.

Preferably, the joint surface of the complex structure accessory and the dental solid model is the tooth surface, or the joint surface is outside the tooth surface, and the complex structure accessory and the dental solid model are bonded through paraffin.

Preferably, the bonding surface is planar.

Preferably, the dental model comprises an upper dental model and a lower dental model, and the complex structure accessories protrude outwards from the upper dental model and the lower dental model.

The invention has the advantages that: the local part of the complex structure accessory is separated from the dental jaw model main body, and the device can be easily separated from the dental jaw model in the demolding link through a method of separately printing, manufacturing and splicing in the hot-pressing film process, so that the condition that the device cannot be demolded or is seriously deformed or broken is avoided, and the manufacturing problem of the invisible complex structure accessory appliance is solved.

Drawings

FIG. 1 is a schematic view of a dental model with complex structural attachments.

Fig. 2 is a schematic view of a complex structure accessory.

Fig. 3 is a schematic view of a complex structure accessory separated from a dental model main body.

Fig. 4 is a schematic diagram of the separation between complex structural attachments.

FIG. 5 is a schematic view of a complex structured attachment in combination with a dental jaw body.

The labels in the figure are:complex structure annex 1, dental castmain part 2.

Detailed Description

The embodiments of the present application will be described below with reference to the drawings. The terminology used in the description of the embodiments herein is for the purpose of describing particular embodiments herein only and is not intended to be limiting of the application.

As an embodiment, as shown in fig. 1, a method for manufacturing an invisible appliance with anattachment 1 having a complex structure comprises the following steps:

step 1, acquiring oral cavity data of a patient, and establishing a three-dimensional model of the oral cavity of the patient according to the acquired oral cavity data, wherein the three-dimensional model comprises tooth data and gum data;

step 2, designing a correction scheme according to the three-dimensional model, and further obtaining a three-dimensional digital dental model;

step 3, splitting thecomplex structure accessory 1 on the three-dimensional digital dental model into a plurality of parts through computer software, and separating one part of thecomplex structure accessory 1 from the dental modelmain body 2;

step 4, printing and manufacturing the dental model of the main body of the three-dimensional digital dental model and thecomplex structure accessories 1 of each part through a 3D printer;

step 5, combining and assembling the dental model main body and thecomplex structure accessories 1 of each part, temporarily bonding the dental model main body and the complex structure accessories by melted wax, and easily separating each part during demoulding;

and 6, carrying out hot-pressing film pressing on the dental model, then demoulding, cutting and polishing the invisible orthodontic appliance, and cleaning and disinfecting to finish the manufacturing of the invisible orthodontic appliance.

Preferably, the method for manufacturing the invisible orthodontic appliance with thecomplex structure attachment 1 comprises the steps of acquiring oral data to establish a three-dimensional model, designing an orthodontic scheme and thecomplex structure attachment 1 according to the established three-dimensional model, decomposing a designed three-dimensional digital dental model with different parts of thecomplex structure attachment 1 into a plurality of independent parts, manufacturing the independent parts into dental models, performing hot-pressing film pressing on each dental model through splicing and combining, demolding the orthodontic appliance through disassembling and separating the spliced and combined dental models, and finishing the manufacturing of the invisible orthodontic appliance through cutting, polishing, cleaning and disinfecting.

As an embodiment, thecomplex structure accessory 1 model on the three-dimensional digital dental model is decomposed into a plurality of parts; hot pressing the film on the structural accessory models of all the parts through assembling and combining; and demolding the orthodontic appliance by disassembling and separating the accessory models of all the parts.

Preferably, the main body of the three-dimensional digital dental model and the model of each part of thecomplex structure accessory 1 are respectively split and designed on software according to the correction requirement, and the models are respectively and independently manufactured.

Preferably, thecomplex structure attachment 1 model on the disassembled dental model and the dental modelmain body 2 model can be separated and combined. The dental cast can be subjected to hot-pressing film and rapid demoulding in the process of manufacturing the invisible appliance through the separation and combination of theaccessories 1 with complex structures.

Preferably, the assembly of thecomplex structure accessory 1 model on the decomposed dental model is assembled and combined through melted wax and/or tenon-and-mortise structures.

Preferably, the model of theaccessory 1 with the complex structure of each part on the invisible orthodontic appliance dental model is separated from the dental modelmain body 2 through twisting and/or tenoning and mortising during demolding. Because thecomplex structure accessory 1 models of each part are combined through the wax or the tenon-and-mortise structure, the combination and the separation of thecomplex structure accessory 1 models of each part can be realized only by applying certain torsional force or unlocking the tenon-and-mortise structure during the separation.

Preferably, the dental cast includes an upper dental cast and a lower dental cast, and thecomplex structure attachments 1 protrude outward from the upper dental cast and the lower dental cast.

Preferably, as shown in fig. 2, thecomplex structure attachment 1 has an irregular shape including hooking points protruding outward at the cuspids of the maxillary dental cast, upper protrusions at both sides of the posterior dental area of the maxillary dental cast, lower protrusions at both sides of the posterior dental area of the mandibular dental cast, and side protrusions laterally of the lower protrusions.

As an embodiment, the complex structuredattachment 1 plays a key role in the correction of the malformation of the jaw, when the upper and lower jaws are separated, the lateral projections located laterally to the lower projections of the lower jaw and the hooking points located at the cuspids of the upper jaw are subjected to the traction force from the traction means and transferred to the lower jaw and thus to the lower jaw to allow the lower jaw to migrate.

Preferably, when the upper jaw dental socket and the lower jaw dental socket are occluded, the upper bulges positioned on two sides of the rear dental area of the upper jaw dental socket and the lower bulges positioned on two sides of the rear dental area of the lower jaw dental socket are in abutting contact, and because the upper bulges are in front of the rear bulges and the lower bulges are in front of the rear bulges, the lower bulges are continuously pushed by the forward bulges to transfer to the lower jaw to enable the lower jaw to move, so that the effect of correcting the dentognathic deformity is achieved.

As an embodiment, as shown in fig. 2, thecomplex structure attachment 1 is designed on software according to the correction requirement, thecomplex structure attachment 1 on the digital dental model is divided into a plurality of parts by Magics and/or UG software, and one part of the complex structure attachment is printed and manufactured separately from the dental main body.

As an embodiment, the position and the number of thecomplex structure attachments 1 to be separated are determined according to the specific shapes of the attachments, as shown in fig. 3 and 4, the positions are two different cutting positions, as shown in fig. 3, thecomplex structure attachments 1 and the dental jaw are cut together, as shown in fig. 4, and thecomplex structure attachments 1 are cut.

As an embodiment, as shown in fig. 5, in the process of manufacturing the invisible appliance, when thecomplex structure attachment 1 and the dental model are assembled and combined together during hot pressing of the film, when thecomplex structure attachment 1 and the dental model are cut together, thecomplex structure attachment 1 and the dental model are assembled and combined together, and when thecomplex structure attachment 1 is cut, thecomplex structure attachment 1 and the dental model are assembled and combined together.

Preferably, the main body of the dental model and thecomplex structure accessories 1 of each part have two segmentation modes, as shown in fig. 3, the first mode is that the dental model and thecomplex structure accessories 1 are segmented together, as shown in fig. 4, and the second mode is that thecomplex structure accessories 1 of each part are segmented separately; when the main body of the dental jaw model and thecomplex structure accessory 1 are cut together, thecomplex structure accessory 1 model of each part and the main body of the dental jaw model are temporarily bonded by wax to be combined; when thecomplex structure accessories 1 of each part are cut separately, thecomplex structure accessories 1 model of each part and the tooth mould are combined through the tenon-and-mortise structure, and thecomplex structure accessories 1 model of each part can be combined and separated only by applying certain torsional force or unlocking the tenon-and-mortise structure during separation.

The method has the advantages that the local part of the accessory with the complex structure is separated from the dental jaw main body, and the appliance can be easily separated from the dental cast in the demolding link by a method of separately printing, manufacturing and splicing during hot-pressing film, so that the condition that the appliance cannot be demolded or is seriously deformed or broken is avoided, and the problem of manufacturing the invisible appliance with the accessory with the complex structure is solved.

The invention shown and described herein may be practiced in the absence of any element or elements, limitation or limitations, which is specifically disclosed herein. The terms and expressions which have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of the features shown and described or portions thereof, and it is recognized that various modifications are possible within the scope of the invention. It should therefore be understood that although the present invention has been specifically disclosed by various embodiments and optional features, modification and variation of the concepts herein described may be resorted to by those skilled in the art, and that such modifications and variations are considered to be within the scope of this invention as defined by the appended claims.

The contents of the articles, patents, patent applications, and all other documents and electronically available information described or cited herein are hereby incorporated by reference in their entirety to the same extent as if each individual publication was specifically and individually indicated to be incorporated by reference. Applicants reserve the right to incorporate into this application any and all materials and information from any such articles, patents, patent applications, or other documents.

Claims (10)

1. A manufacturing method of an invisible appliance with a complex structure accessory comprises the steps of establishing an oral cavity three-dimensional model, and is characterized in that: the method comprises the steps of forming a complex structure accessory model on teeth of a three-dimensional oral cavity model, or attaching the formed complex structure accessory model to the teeth, separating the three-dimensional oral cavity model and the complex structure accessory model into mutually independent parts, respectively manufacturing the three-dimensional oral cavity model and the complex structure accessory model into entities, assembling the entity complex structure accessory to an entity oral cavity model to form an appliance mould, hot-pressing an appliance diaphragm to the appliance mould to form an appliance rough blank, detaching the entity oral cavity model from the appliance rough blank during demoulding, demoulding the entity complex structure accessory from the appliance rough blank, and manufacturing the appliance rough blank into a hidden appliance finished product.

2. The method of making an invisible appliance with an attachment having a complex structure according to claim 1, wherein the method comprises the following steps: the separating surface of the three-dimensional oral cavity model and the complex structure model is the tooth surface, or the separating surface is outside the tooth surface.

3. The method of making an invisible appliance with an attachment having a complex structure according to claim 1, wherein the method comprises the following steps: the complex structure accessory is irregular in shape and comprises a hook hanging point which is positioned at the cuspid of the upper jaw dental model and protrudes outwards, or upper protrusions which are positioned at the two sides of the rear dental area of the upper jaw dental model and/or lower protrusions which are positioned at the two sides of the rear dental area of the lower jaw dental model and/or side protrusions which are positioned at the lateral sides of the lower protrusions.

4. The method of making an invisible appliance with an attachment having a complex structure according to claim 1, wherein the method comprises the following steps: the main body of the three-dimensional digital dental model and the complex structure accessories of all the parts are cut and separated by a computer according to the requirements of the correction scheme, and the main body of the three-dimensional digital dental model and the complex structure accessories of all the parts are separately manufactured into the dental jaw model.

5. The method of making an invisible appliance with an attachment having a complex structure according to claim 1, wherein the method comprises the following steps: the complex structure accessories and the main body of the dental jaw model can be assembled, combined, disassembled and separated, and the complex structure accessories and the main body of the dental jaw model are cut and separated or the complex structure accessories are cut and separated independently.

6. The method of making an invisible appliance with an attachment having a complex structure according to claim 5, wherein the method comprises the following steps: the complex structural accessories of each part are assembled and combined with the main body of the dental jaw model through melted wax and/or a mortise and tenon structure; the accessories with complex structures of all parts and the main body of the dental jaw model are disassembled and separated through twisting and/or tenon-mortise disassembling.

7. A mold for an invisible appliance comprising a dental mockup and attachments to teeth of the dental mockup, characterized in that: the accessory is detachably connected with the dental solid model.

8. The mold for an invisible appliance of claim 7, wherein: the joint surface of the complex structure accessory and the dental solid model is the tooth surface, or the joint surface is outside the tooth surface, and the complex structure accessory and the dental solid model are bonded through paraffin.

9. The mold for an invisible appliance of claim 8, wherein: the bonding surface is a plane.

10. The mold for an invisible appliance of claim 7, wherein: the dental model comprises an upper dental model and a lower dental model, and the complex structure accessories are protruded out of the upper dental model and the lower dental model.

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