Digital manufacturing method of novel film pressing jaw position appliance

Abstract

The invention provides a digital manufacturing method of a novel pressed film jaw position appliance, which comprises the following four steps of: 1) acquiring oral cavity information of a patient, including soft and hard tissue information, dentition information and a jaw position relationship of the patient; 2) creating a corresponding digital three-dimensional model of the dentition of the patient according to the oral cavity information of the patient; performing digital tooth separation and tooth arrangement through professional design software to obtain a target dentition three-dimensional model required by a patient; 3) adjusting the jaw position relation of the dentition model according to diagnosis and treatment requirements, and exporting and manufacturing a required target model after confirmation; 4, on the basis of the target dentition model with the adjusted jaw position relation, the required jaw position appliance is designed and manufactured according to the treatment target, the process is greatly simplified, and multiple steps which possibly generate errors in the traditional manufacturing process are omitted.

Description

Technical Field

[0001] The present invention relates to the technical field of orthodontic appliances, and in particular to a digital manufacturing method for a novel extruded jaw orthodontic appliance. Background Art

[0002] The jaw correction appliance is a functional appliance without brackets made of highly elastic material. Its principle is mainly based on the famous theory of anatomist Harry Sicher: muscle win theory, which uses the development law of the relationship between the patient's craniofacial bones, teeth, dentition and jaw position to eliminate malocclusion. The negative impact caused by the cause of deformity is guided to grow and develop along the normal physiological position and jaw position relationship. The jaw appliance can guide the horizontal growth of the mandible and provide favorable conditions for nasal breathing, stimulate the facial muscles, and thus move the mandible forward and increase the anterior wall of the upper airway; at the same time, it provides mouth-breathing patients with the conditions to prevent mouth breathing, forcing them to breathe through the nose and break the bad habit of mouth breathing; the lip stop structure in front of the jaw appliance can prevent the patient's tongue from protruding forward, correcting the patient's wrong habits such as tongue sticking out and baby swallowing; the cheek screen structure on both sides of the appliance can prevent the patient from compressing the alveolar bone and teeth due to buccal muscle tension; and the appliance will use the upper front teeth as a fulcrum to move the mandibular position forward, thereby achieving sagittal improvement; compared with prefabricated and traditional functional appliances, the jaw appliance is more in line with the patient's individual dentition morphology, and can also regularize the dentition while adjusting mouth breathing and muscle function training, thereby having a higher treatment success rate.

[0003] At present, the commonly used technology for making jaw appliances is the silicone infusion method. The process flow is as follows: 1) Use 3D scanning technology to obtain a digital model of the patient's existing dentition and jaw relationship; 2) Clinical designers determine the ultimate goal of the dentition and jaw relationship, use design software to arrange the teeth, and obtain a digital target dentition model; 3) Based on the target dentition model of the dentition and jaw relationship, design and make a silicone infusion mold; 4) Infuse silicone into the prepared mold, and after the appliance is formed and cooled, demold it, perform post-processing, and finally obtain the finished jaw appliance. The silicone infusion method for making jaw appliances has problems such as high mold opening cost, difficulty in achieving complete customization, and dimensional errors caused by cooling of silicone after molding.

[0004] Therefore, it is necessary to provide a new digital manufacturing method for a compression molded jaw appliance to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a new digital manufacturing method for a molded jaw appliance, and the digital manufacturing method for a silicone appliance comprises the following steps:

[0006] 1) Obtain the patient's oral information, including soft and hard tissue information, dentition information and the patient's jaw position;

[0007] 2) Create a corresponding digital 3D model of the patient's dentition based on the patient's oral information; perform digital tooth separation and tooth arrangement through professional design software to obtain the target 3D model of the patient's dentition;

[0008] 3) Adjust the jaw relationship of the dental arch model according to the needs of diagnosis and treatment, and after confirmation, export and make the required target dental arch model.

[0009] 4) Based on the target dentition model with adjusted jaw relationship, design and produce the required jaw appliance according to the treatment goal.

[0010] Preferably, the step of obtaining the patient's oral information includes: using a three-dimensional scanner to directly scan the patient's dentition in the patient's mouth to obtain the oral information.

[0011] Preferably, the step of obtaining the patient's oral information comprises: using an oral impression made of a material such as alginate or silicone rubber to make a plaster model of the patient's oral cavity, and then obtaining the patient's oral information through a three-dimensional scanner.

[0012] Preferably, the step of obtaining the target dentition three-dimensional model required by the patient is that the clinical designer imports the patient's oral information into professional design software, adjusts the tooth position and jaw relationship according to the patient's needs, determines the treatment plan, and designs and completes the target dentition three-dimensional model required by the patient through steps such as tooth separation and tooth arrangement.

[0013] Preferably, the step of making the desired target dentition model is to import the designed digital three-dimensional model into a 3D printer, and print the target dentition model by the 3D printer to obtain the target dentition model.

[0014] Preferably, the steps of designing and making the required jaw appliance are: placing the printed target dentition model on a dental laminator, lifting the maxillary tooth model by 0-5mm, determining the jaw relationship between the upper and lower jaw tooth models, heating the dental film at high temperature to soften it, transferring it to the dentition model to make it fit closely, and after cooling, the customized jaw appliance is formed; during production, an airway is left in the middle of the jaw appliance; after post-processing such as cutting and polishing, the finished appliance is obtained.

[0015] Compared with the prior art, the present invention provides a new digital manufacturing method of a molded jaw appliance, which has the following beneficial effects:

[0016] The present invention is aimed at customized jaw correction appliances, and eliminates the steps that may cause errors in the manufacturing process. The technical process omits the steps of appliance mold making, silicone perfusion, silicone post-processing and other steps in the prior art, which helps to improve the product accuracy and performance of the manufactured jaw correction appliances, and avoid dimensional errors that may occur during perfusion model printing, silicone perfusion and silicone post-processing; at the same time, it can avoid incomplete perfusion of the product during the perfusion process, shrinkage of the silicone after cooling, damage to the outer surface of the product during the demolding process, and irregular stretching during post-processing, which have adverse effects on the mechanical properties and surface morphology of the silicone material.

[0017] For customized silicone orthodontic appliances, this method can avoid making silicone injection molds and reduce mold opening costs; the production method is simple and quick, which can reduce labor costs.

[0018] For non-customized or semi-customized orthodontic appliances, this method can be used to produce customized orthodontic appliances, which greatly improve the matching degree with the patient and customize the patient's medical plan, which is conducive to achieving better treatment results for the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall flow chart of the present invention;

[0020] Figure 2 A novel compression molded jaw position appliance made by the present invention. DETAILED DESCRIPTION

[0021] See also Figure 1 The present invention relates to a digital manufacturing method of a novel extruded jaw appliance, and the digital manufacturing method of a silicone appliance comprises the following steps:

[0022] 1) Obtain the patient's oral information, including soft and hard tissue information, dentition information and the patient's jaw position;

[0023] 2) Create a corresponding digital 3D model of the patient's dentition based on the patient's oral information; perform digital tooth separation and tooth arrangement through professional design software to obtain the target 3D model of the patient's dentition;

[0024] 3) Adjust the jaw relationship of the dental arch model according to the needs of diagnosis and treatment, and after confirmation, export and make the required target dental arch model.

[0025] 4) Based on the target dentition model with adjusted jaw relationship, design and produce the required jaw appliance according to the treatment goal.

[0026] The steps of obtaining the patient's oral information include: directly scanning the patient's dentition in the patient's mouth using a 3D scanner to obtain the oral information. Alternatively, after making a plaster model of the patient's oral cavity using an oral impression made of materials such as alginate or silicone rubber, the patient's oral information is obtained by a 3D scanner.

[0027] After obtaining the target dentition 3D model required by the patient, the clinical designer imports the patient's oral information into the professional design software, adjusts the tooth position and jaw position relationship according to the patient's needs, determines the treatment plan, and designs and completes the target dentition 3D model required by the patient through steps such as tooth separation and tooth arrangement. The professional design software used in this plan includes 3ShapeOrtho Analyser and 3Shape Appliance Designer, but is not limited to the above software.

[0028] The desired target dentition model is produced, the designed digital three-dimensional model is imported into a 3D printer, and the target dentition model is printed by the 3D printer to obtain the target dentition model.

[0029] Design and make the required jaw appliance, place the printed target dentition model on the dental laminator, lift the maxillary tooth model by 0-5mm, determine the jaw relationship between the upper and lower jaw tooth models, heat the dental film at high temperature to soften it, transfer it to the dentition model to make it fit tightly, and after cooling, the customized jaw appliance is formed. During production, an airway is left in the middle of the jaw appliance. After post-processing such as cutting and polishing, the finished appliance is obtained.

[0030] The working principle and use process of the present invention:

[0031] Design and production of target dentition model: Obtain the patient's dentition information through a 3D scanner, import it into the design software, and then design the target dentition model through steps such as tooth division and tooth arrangement to determine the target dentition position and jaw position relationship. The target dentition model can be directly printed through a 3D printer.

[0032] Molding and production of the braces: Use a dental laminator to heat and soften the dental film, and apply uniform pressure to make it fit tightly on the target dentition model, ensuring the matching degree between the braces and the target dentition. After trimming and polishing, the finished braces are obtained.

[0033] Compared with the existing technology, this production technology is simpler and faster, and improves the accuracy and performance of the finished orthodontic appliance.

[0034] By scanning the patient's mouth and obtaining the patient's oral data, the braces are customized for the patient, thereby achieving complete customization of the braces, with a built-in airway to increase the patient's comfort and compliance. Elastic materials are used as the raw materials of the braces to facilitate the deformation of the braces, thereby generating a corrective force on the teeth and promoting neat alignment of the teeth.

[0035] The three-dimensional scanning software, dentition design software, 3D printer printing software, dentition model printing materials, dental laminator, dental film printing materials and other software, hardware and raw materials involved in this technology can be relatively replaced according to the needs of the operator.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A digital manufacturing method for a novel extruded jaw appliance, characterized in that: The method for digitizing a jaw appliance comprises the following steps: 1) Obtain the patient's oral information, including soft and hard tissue information, dentition information and the patient's jaw position; 2) Create a corresponding digital 3D model of the patient's dentition based on the patient's oral information; perform digital tooth separation and tooth arrangement through professional design software to obtain the target 3D model of the patient's dentition; 3) Adjust the jaw relationship of the dental arch model according to the diagnosis and treatment needs, and export and make the required target dental arch model after confirmation; 4) Based on the target dentition model with adjusted jaw relationship, design and produce the required jaw appliance according to the treatment goal.

2. The digital manufacturing method of a novel extruded jaw appliance according to claim 1, characterized in that: The steps of obtaining the patient's oral information include: using a three-dimensional scanner to directly scan the patient's dentition in the patient's mouth to obtain the oral information.

3. The digital manufacturing method of a novel extruded jaw appliance according to claim 1 is characterized in that: After making a plaster model of the patient's oral cavity using an oral impression made of materials such as alginate or silicone rubber, the patient's oral information is obtained through a 3D scanner.

4. The digital manufacturing method of a novel extruded jaw appliance according to claim 1 is characterized in that: The steps to obtain the target dentition 3D model required by the patient are as follows: the clinical designer imports the patient's oral information into professional design software, adjusts the tooth position and jaw relationship according to the patient's needs, determines the treatment plan, and designs and completes the target dentition 3D model required by the patient through steps such as tooth separation and tooth arrangement.

5. The digital manufacturing method of a novel laminated jaw appliance according to claim 1 is characterized in that: The steps for making the required target dentition model are: importing the designed digital three-dimensional model into a 3D printer, printing the target dentition model through the 3D printer, and obtaining the target dentition model.

6. The digital manufacturing method of a novel extruded jaw appliance according to claim 1 is characterized in that: The steps for designing and making the required jaw appliance are as follows: placing the printed target dentition model on a dental laminator, lifting the maxillary tooth model by 0-5mm, determining the jaw relationship between the upper and lower jaw tooth models, heating the dental film at high temperature to soften it, transferring it to the dentition model to make it fit closely, and after cooling, the customized jaw appliance is formed; during production, an airway is left in the middle of the jaw appliance; after post-processing such as cutting and polishing, the finished appliance is obtained.

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