WO2024001628A1

WO2024001628A1 - Dental device, dental device set, and method for manufacturing dental device

Info

Publication number: WO2024001628A1
Application number: PCT/CN2023/096351
Authority: WO
Inventors: 庄慧敏; 王星星; 张超群; 姚峻峰
Original assignee: 正雅齿科科技(上海)有限公司
Priority date: 2022-07-01
Filing date: 2023-05-25
Publication date: 2024-01-04

Abstract

Provided are a dental device (100), a dental device set, and a method for manufacturing the dental device (100). The dental device (100) comprises a first crown-shaped body (1) having a tooth receiving cavity (11) for accommodating a plurality of teeth on the jaw, and a shield (2) detachably fixed to a lip/cheek side of the first crown-shaped body (1). The relative positions of the first crown-shaped body (1) and the shield (2) allow the shield (2) to be kept at a predetermined position in the mouth after the dental device (100) is worn on the jaw. At the predetermined position, the lip and cheek muscles corresponding to teeth covered by the shield (2) are separated by the shield (2) and are not in contact with the covered teeth. When a traction force borne by the shield (2) in a predetermined direction is greater than or equal to a predetermined force value, the shield (2) is detached from the first crown-shaped body (1) without damage. The dental device (100) and the dental device set can be used for ameliorating lip/cheek muscle disorders and treating various oral problems due to bad habits.

Description

Dental instruments, dental instrument sets and dental instrument manufacturing methods

Cross-references to related applications

This application is filed based on the Chinese patent application with application number "202210765516. Priority rights of Chinese patent applications, the entire contents of the above-mentioned Chinese patent applications are hereby incorporated into this application by introduction.

Technical field

The embodiments of the present application belong to the field of dental medical instruments, and more specifically relate to a dental instrument, a dental instrument set and a manufacturing method of the dental instrument.

Background technique

The development of malocclusion is similar to growth and development and is the product of the interaction of genetically controlled cell proliferation and environmental factors. After thousands of years of survival and reproduction, human food has become more and more refined, and the requirements for chewing have been greatly weakened. In childhood, insufficient perioral muscle exercise often affects subsequent tooth growth.

Between the ages of 2 and 5, children grow the fastest during this period, and incorrect bite relationships and misaligned primary teeth can also show up. Research shows that these early problems persist in later developmental stages. , and orthodontic problems will become more prominent as the permanent teeth erupt. For example, thumb-sucking habits, long-term pacifier use, tongue thrusting, and mouth breathing (collectively referred to as poor muscle function habits) are the main causes of jaw dysplasia and dental crowding. Correcting these bad habits can avoid complicated orthodontic treatment when the permanent teeth erupt later.

In the existing technology, Frankel appliances or Balters biological adjusters are often used to eliminate the centripetal pressure on the cheeks and/or lips during the development of the alveolar bone, which is beneficial to the function of the tongue muscles. However, the above-mentioned braces are usually made of resin and bent steel wires. They are large and have a strong foreign body sensation in the patient's mouth. Moreover, the above-mentioned braces are fixed in the mouth through steel wires. When the patient eats or speaks, they need to be removed from the mouth. Removal, the existing braces are too bulky and inconvenient to remove and wear.

In addition, whether it is a Frankel appliance, a Balters biological adjuster or other types of muscle activators on the market, they can only isolate the pressure exerted on the teeth by the cheeks and/or lips. When the appliance is removed, the labiobuccal muscles or The orbicularis oris muscle has returned to its original position, and it is unable to effectively establish a new balance state for the labiobuccal muscle or orbicularis oris muscle in the correct position to achieve the role of muscle reshaping.

To this end, this application provides a solution to the above problems.

Contents of the invention

The technical problem solved by this application is to overcome the shortcomings of the existing technology and provide a dental instrument, a dental instrument set and a manufacturing method of the dental instrument that can correct the function of the labial and buccal muscles or the orbicularis oris muscle.

In order to achieve the above objectives, the technical solutions adopted in this application are as follows:

A dental instrument, including a first shell-shaped body having a tooth receiving cavity for accommodating multiple teeth of the jaw, and a shield that is detachably fixedly connected to the labial and buccal sides of the first shell-shaped body, and the first shell-shaped body The relative positional relationship between the main body and the shield is such that after the dental instrument is worn on the jaw, the shield is kept at a predetermined position in the mouth, and the predetermined position allows the lip corresponding to the teeth covered by the shield to be maintained. The buccinator muscle is blocked by the shield and does not contact the covering teeth, wherein when the traction force received by the shield in a predetermined direction is greater than or equal to a predetermined force value, the shield moves from the first shell-shaped Detach without damaging the body.

A dental instrument set, including the dental instrument as described in any one of the above, and further comprising a second shell-shaped body with a tooth receiving cavity for a plurality of teeth in the opposite jaw, the labial side and/or of the second shell-shaped body Or the buccal side is provided with a locking part that is detachable from the second connecting part on the screen.

A method of manufacturing a dental instrument, including: obtaining a patient's oral cavity data, the oral cavity data including the patient's tooth data, gum data and labial and buccal muscle data; generating a three-dimensional model representing the dental instrument based on the oral cavity data; the three-dimensional The model includes a three-dimensional model of the screen and a three-dimensional model of the first shell-shaped body; based on the correction plan, the three-dimensional model of the first shell-shaped body has a first connection part model generated according to the correction plan, and on the three-dimensional model of the screen There is a second connection part model generated according to the correction plan; a dental instrument including a first shell-shaped body and a shield is produced according to the three-dimensional model.

The dental instruments, dental instrument sets and dental instrument manufacturing methods provided by the embodiments of the present application can bring at least one of the following beneficial effects:

The dental instrument in this application includes a detachable connection between the first shell-shaped body and the shield. When the shield is connected to the first shell-shaped body and used, the shield can block the labial and buccal muscles from exerting pressure on the teeth and promote tooth growth. , providing sufficient space for dental arch development. In addition, when the screen is subjected to external pulling force, it can be easily detached from the first shell-shaped body. The detached screen can pull the screen and can be used to correct the labial and buccal muscles. The shield in this application has a simple structure and is easy to operate. Through a special connection arrangement with the first shell-shaped body, it can not only eliminate the abnormality of the labial and cheek muscles, but also train the labial and cheek muscles to establish a new muscle balance. .

The application also includes a dental instrument set. The dental instrument set has a first shell-shaped body and a second shell-shaped body that are respectively worn on the patient's upper and lower jaws, and can be connected to the first shell-shaped body and the second shell-shaped body respectively. Remove the attached screen stop. The relative position of the upper and lower jaws can be locked through the screen, thereby correcting the patient's mouth breathing and tongue thrusting problems.

The shield in this application has a simple structure and is easy to manufacture. It can correct a variety of oral problems and is applicable to a wide range of cases. At the same time, there is a detachable structure between the screen and the shell body, which facilitates cleaning and prevents the accumulation of food residues.

Description of drawings

The preferred embodiments will be described below in a clear and easy-to-understand manner with reference to the accompanying drawings, and the above-mentioned characteristics, technical features, advantages and implementation methods will be further described.

Figure 1 is a schematic diagram of an embodiment of the dental instrument in the present application;

Figure 2 is a schematic diagram of another embodiment of the dental instrument in the present application;

Figure 3 is a schematic diagram of an embodiment of the first shell-shaped body in the dental instrument of the present application;

Figure 4 is a schematic diagram of an embodiment of the shield in the dental instrument of the present application;

Figure 5 is a partial enlarged view of area A in Figure 3;

Figure 6 is a partial enlarged view of area B in Figure 4;

Figure 7 is a schematic diagram of another embodiment of the first shell-shaped body in the dental instrument of the present application;

Figure 8 is a schematic diagram of an embodiment of the second connection part in the dental instrument of the present application;

Figure 9 is a schematic diagram of another embodiment of the second connection part in the dental instrument of the present application;

Figure 10 is a schematic diagram of another embodiment of the first shell-shaped body in the dental instrument of the present application;

Figure 11 is a schematic diagram of another embodiment of the shield in the dental instrument of the present application;

Figure 12 is a schematic view of Figure 11 from another angle;

Figure 13 is a schematic diagram of another embodiment of the shield in the dental instrument of the present application;

Figure 14 is a schematic diagram of another embodiment of the shield in the dental instrument of the present application;

Figure 15 is a schematic diagram of another embodiment of the shield in the dental instrument of the present application;

Figure 16 is a flow chart of the manufacturing method of the dental instrument in this application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, each implementation mode of the present application will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that in each embodiment of the present application, many technical details are provided to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solution claimed in this application can also be implemented. The division of the following embodiments is for the convenience of description and should not constitute any limitation on the specific implementation of the present application. The various embodiments can be combined with each other and referenced with each other on the premise that there is no contradiction.

Directional terms such as “up”, “down”, “left” and “right” used in the description in this article refer to the directions in the drawings and do not refer to special limitations.

The "posterior tooth area" in this application is defined according to the classification of teeth on pages 36-38 of the second edition of "Introduction to Oral Medicine" published by Peking University Medical Press, including premolars and molars, and is shown in FDI notation as Teeth 4-8, FDI labeling of the anterior region shows teeth 1-3. The anterior tooth area of the first shell-shaped body can be used to accommodate the central incisors and lateral incisors of the teeth. Teeth and canines, the posterior region of the first shell-like body can be used to accommodate the first premolar, second premolar, first molar, second molar and third molar of the tooth.

Referring to FIGS. 1 to 4 , an embodiment of the present application provides a dental instrument 100 , which includes a first shell-like body 1 having a tooth receiving cavity 11 for accommodating multiple teeth of the jaw, and a detachable and fixedly connected first shell body 1 . The shield 2 on the labial and buccal side of the shell-shaped body 1. The first shell-shaped body 1 can be worn on the patient's maxillary dentition or mandibular dentition, and wrap all the teeth on the dentition. The first shell-shaped body 1 has a first connecting portion on the labial side or the labial-buccal side. 12, that is, the outer surface of the tooth receiving cavity 11 in the anterior tooth area of the first shell-like body 1, or the outer surface of the tooth receiving cavity 11 in the anterior tooth area and the posterior tooth area has a first connecting portion 12, and the screen 2 is adjacent to the first connecting portion 12. A second connecting part 22 is detachably connected to the first connecting part 12 on a surface of one side of the shell-shaped body 1 . When the dental instrument 100 in this application is worn in the patient's mouth, the shield 2 is positioned to a predetermined position through the first connection part 12 and the second connection part 22 , that is, the relative position between the first shell-shaped body 1 and the shield 2 The positional relationship is such that the dental instrument 100 is worn on the jaw and the screen 2 is kept at a predetermined position in the mouth. The predetermined position allows the muscles of the labial and buccal muscles corresponding to the teeth covered by the screen 2 to be blocked by the screen 2 and not in contact with the covered teeth. That is to say, the teeth covered by the screen 2 can remain separated from their corresponding labial and buccal muscles. , ensuring that the labiobuccal muscles do not exert inward pressure on these teeth. In some embodiments, the connection between the first connection part 12 and the second connection part 22 is a detachable connection and meets the requirement that when the traction force on the screen 2 in a predetermined direction is greater than or equal to a predetermined force value, the screen 2 can Detached from the first shell-shaped body 1 without damage, the patient can then use the separated shield 2 to train the labial and buccal muscles, so that the labial and buccal muscles can establish a balanced state in a new position. During use of the dental instrument 100 of the present application, when a force exceeding 2N is applied to the outside of the oral cavity, the first connecting part 12 and the second connecting part 22 will separate from each other.

In some embodiments, the first shell-like body 1 has at least two first connecting parts 12 , and all the first connecting parts 12 are symmetrically arranged about the tooth center line, such that the distance between the first connecting part 12 and the second connecting part 22 is The traction force (load) is evenly distributed. The first connecting part 12 may be disposed on the outer surface of the tooth receiving cavity 11 corresponding to the incisors and/or premolars, where the outer surface is the labial/buccal surface. In some embodiments, when the first shell-like body 1 has two first connecting parts 12 , the first connecting parts 12 are provided at tooth positions 3-4 corresponding to the tooth receiving cavities 11 ; when the first shell-like body 1 When there are three first connecting parts 12, one of the first connecting parts 12 is disposed at the tooth receiving cavity 11 corresponding to tooth position 1-1, and is axially symmetrical about the tooth midline; in some embodiments, the first connecting part 12 The shell-like body 1 has four first connecting parts 12, which are respectively provided on the tooth receiving cavities 11 corresponding to the central incisor and tooth No. 5, because the tooth receiving cavity 11 of the central incisor is the tooth receiving cavity 11 with the largest surface area. , there is enough area to place the first connecting part 12. In addition, the tooth receiving cavity 11 corresponding to the No. 5 tooth position is the tooth receiving cavity 11 with the gentlest outer surface, where the angle and orientation design of the first connecting part 12 are more It is simple and does not require too much consideration of the influence of the tooth receiving cavity 11 itself on the design of the first connecting part 12 .

In some embodiments, the detachable connection structure between the first connection part 12 and the second connection part 22 is a snap-in structure. Specifically, as shown in FIG. 5 and FIG. 6 , the first connecting portion 12 is an anchoring opening on the outer surface of the tooth receiving cavity 11 at the corresponding position. The anchor opening structure has an introduction groove 121 and a fixing groove 122; the second connection part 22 is provided on the surface of the screen 2 adjacent to the side of the first shell-shaped body 1, and is protruding toward the direction of the first shell-shaped body 1 , the second connecting portion 22 can be integrally formed with the screen 2 , and in some embodiments can be provided by a surface of the screen 2 adjacent to the first shell-shaped body 1 that protrudes toward the first shell-shaped body 1 . The second connecting part 22 has a guide post 221 corresponding to the introduction groove 121 and an anchoring part 222 corresponding to the fixing groove 122 . The guide post 221 slides along the introduction groove 121 until the anchoring part 222 snaps into the fixing groove 122 .

In some embodiments, the width of the introduction groove 121 is approximately larger than the size of the guide post 221 so that the guide post 221 can pass through the introduction groove 121 smoothly, and the size of the anchoring portion 222 is larger than the size of the fixing groove 122 so that the second connecting portion 22 After being clicked into the first connecting part 12, it is not easy to fall off from the first connecting part 12. In addition, the introduction groove 121 may be an opening structure extending along the vertical direction, and the first connection part 12 and the second connection part 22 are vertically engaged, or the introduction groove 121 may be an opening structure extending at an angle to the vertical direction. There is an angle between the first connecting part 12 and the second connecting part 22 . The above two latching methods can be selected according to the positions of the first connecting part 12 and the second connecting part 22 .

In some embodiments, the connection relationship between the first connection part 12 and the second connection part 22 also needs to meet the requirement that when the traction force on the screen 2 in a predetermined direction is greater than or equal to a predetermined force value, the screen 2 moves from the first connection part 12 to the second connection part 22 . The shell-shaped body 1 is detached without damage. In some embodiments, when it is necessary to separate the shield 2 from the first shell body 1 , the patient can pull the shield 2 toward the outside of the oral cavity. When the pulling force reaches a predetermined force value, the anchoring portion 222 elastically deforms from the fixing groove. With a force value of 122, the first connecting part 12 and the second connecting part 22 are separated. The second connecting part 22 needs to be made of a material with elastic bending ability that can restore its original shape after extrusion deformation. Medical silicone rubber material can be used.

The structure of the screen 2 in this application can also be made of medical silicone rubber material. Silicone rubber has a certain supporting capacity and can effectively block the contact between the labial and buccal muscles and the corresponding dentition, and the screen 2 fits the soft tissue in the patient's mouth. Silicone rubber can provide soft and comfortable use.

In some embodiments, as shown in FIG. 7 , the first connecting part 12 is a mounting base bonded to the outer surface of the first shell-like body 1 . The mounting base can be a hollow structure, and the outer surface of the mounting base has an anchoring opening structure consistent with the above-mentioned structure, or the mounting base can be a solid structure, and the surface of the mounting base adjacent to the second connecting portion 22 has an anchor opening connected to the second connecting portion 22 The shape matches the groove structure, and the second connecting part 22 can be snapped into the groove.

In some embodiments, when the second connecting part 22 is a protruding structure with a guide post 221 and an anchoring part 222, the first connecting part 12 is an anchoring opening structure on the outer surface of the tooth receiving cavity 11 or the first connecting part 12 is hollow. When installing the base of the structure, as shown in Figure 8, the guide column 221 can also be provided with a clamping part 223 to prevent the screen 2 from moving labially or buccal-lingually. The distance h1 between the anchoring part 222 and the clamping part 223 is It is equal to the thickness of the first shell body 1 or the wall thickness of the mounting base.

In some embodiments, when the second connecting part 22 is a protruding structure with a guide post 221 and an anchoring part 222, the first connecting part 12 is an anchoring opening structure on the outer surface of the tooth receiving cavity 11 or the first connecting part 12 is hollow. When installing the base of the structure, as shown in Figure 9, the part of the guide post 221 adjacent to the anchoring part 222 passes through the fixing groove 122, and the other part of the guide post 221 Part of it is clamped on the outside of the fixing groove 122. Specifically, the guide post 221 can be a truncated cone structure with inconsistent widths. Specifically, the width h2 of the guide post 221 gradually increases from the end adjacent to the tooth receiving cavity 11 to the end far away from the tooth receiving cavity 11. , the minimum width of the guide post 221 is smaller than the width of the introduction groove 121 , and the maximum width of the guide post 221 is greater than the width of the introduction groove 121 .

Of course, in some embodiments, the first connecting part 12 may be a protruding structure having a guide post 221 and an anchoring part 222, and the second connecting part 22 may be a slot structure corresponding to the first connecting part 12. Please refer to FIG. 10 for details. As shown in the figure, the first connecting part 12 is a convex structure protruding in the distal direction on the outer surface of the tooth receiving cavity 11 . The convex first connecting part 12 is integrally formed with the first shell-shaped body 1 . The second connection part 22 is a groove formed on the side surface of the shield 2 adjacent to the first shell-shaped body 1 and is concave in the distal direction. The proximal end of the groove is a channel structure, and the end of the channel structure is with the first connection part. The anchoring portion 222 of the shield 2 has a consistent shape and is embedded in the groove, so that the second connecting portion 22 on the screen 2 can be detachably and fixedly connected with the first connecting portion 12 along the labial (buccal) and lingual direction.

In some embodiments, as shown in FIGS. 2 and 11 , the first connection part 12 and the second connection part 22 are detachably connected by a suction cup. The screen 2 is provided with a second connection part 22 with a horn suction cup structure on a surface adjacent to the first shell body 1. The first connection part 12 may be the outer surface of the tooth receiving cavity 11, and the second connection part 22 is directly adsorbed on the teeth. The outer surface of the receiving cavity 11 or the first connecting portion 12 can be a platform provided on the outer surface of the tooth receiving cavity 11 and slightly raised toward the distal direction. The surface of the platform adjacent to the second connecting portion 22 is provided as a smooth horizontal surface. Provide better adsorption conditions between the first connection part 12 and the second connection part 22 so that the screen 2 will not fall off from the first shell-shaped body 1 without external force.

In some embodiments, the shield 2 has an arcuate structure consistent with the curved shape of the dental arch. In some embodiments, as shown in FIG. 1 , the screen 2 can only block the contact between the teeth in the anterior teeth area and the labialis superioris and labialis minor muscles. Therefore, the screen 2 only needs to cover the anterior teeth in the maxillary and mandibular dentition. All teeth. The screen 2 is in contact with the gums corresponding to all the teeth in the anterior area of the mandibular dentition at the same time. The screen 2 can extend from 1mm-2mm away from the maxillary vestibular sulcus to 1mm-2mm away from the mandibular vestibular sulcus. This avoids irritating the muscles in the vestibular sulcus.

In some embodiments, as shown in FIG. 2 , the structure of the shield 2 can be selected to block the contact between the upper and lower mandibular dentition and the labiobuccal muscles in the anterior and posterior regions. The labial and buccinator muscles here specifically refer to the upper and lower labial muscles, the upper and lower buccinator muscles on the left and right sides. In this embodiment, as shown in FIG. 12 , the width of the screen 2 in the vertical direction (X-axis direction in the figure) gradually decreases from the anterior teeth area to the posterior teeth area. And the screen 2 can cover the entire crown part of the teeth in the anterior and posterior areas. In the anterior area, the screen 2 extends from 1mm-2mm away from the maxillary vestibular sulcus to 1mm-2mm away from the mandibular vestibular sulcus, and the screen 2 2. The maximum value of the width H1 in the vertical direction of the anterior teeth is 1.8cm; in the posterior teeth, the screen 2 extends from the gingival margin of the maxillary posterior teeth to the gingival margin of the maxillary posterior teeth. And the minimum width H2 of the screen 2 in the vertical direction of the anterior tooth area is 0.8cm.

In some embodiments, as shown in FIG. 13 , a V-shaped cutout 23 may be provided in the middle of the front teeth area of the screen 2 to serve as a lip frenulum avoidance area. The length in the vertical direction is about 2mm.

In some embodiments, as shown in FIG. 4 , the surface of the screen 2 adjacent to the labial side is also provided with a traction part 21 needed for training the strength of the perioral muscles. The traction part 21 projects from the labial side of the screen 2 toward the labial side. Stretch settings. In some embodiments, an integrated molding structure is adopted, and a high-temperature and high-pressure stamping process can be used to produce the shield 2 with the traction portion 21 using medical silicone rubber as the material.

In some embodiments, as shown in FIG. 14 , the surface of the shield 2 is also provided with a plurality of ventilation holes 24 arranged in an array to facilitate effective circulation of air between the patient's mouth and the outside after using the dental instrument 100 .

In some embodiments, as shown in FIG. 15 , the traction portion 21 provided on the surface of the screen 2 adjacent to the lip side is connected to the screen 2 separately. In some embodiments, the traction part 21 is threadedly connected to the screen 2 , the traction part 21 is provided with a screw on a side adjacent to the screen 2 , and the screen 2 is provided with a through screw hole 26 . During use of the dental instrument 100 in this application, the shield 2 can be fixed on the first shell-shaped body 1 through the first connecting part 12 and the second connecting part 22, and the shield 2 blocks the labial and buccal muscles from the corresponding dentition. contact to provide sufficient space for the patient's tooth growth and development. When the screen 2 is needed for perioral muscle training, the screen 2 is separated from the first shell-shaped body 1, and then the traction part 21 is connected to the labial side of the screen 2 , the patient uses the traction part 21 to train the perioral muscles, so that the muscles reach a balanced state in a new position.

In addition, as shown in Figure 13, the traction part 21 and the screen 2 can have a snap-on structure, and a ventilation hole 24 structure is added to the front tooth area of the screen 2. The ventilation hole 24 is two holes with a crossbar structure 25 in the middle. , one end of the traction part 21 adjacent to the screen 2 can be provided with a structure that snaps into the ventilation hole 24 and the cross bar structure 25, or the cross bar can be wired and then stretched to assist in applying force.

In some embodiments, the first shell-shaped body 1 in the present application has a dental orthodontic function and can exert movement, turning force and torque on the wrapped teeth. That is, the tooth receiving cavity 11 of the first shell-like body 1 has a geometric structure that allows the teeth it wraps to move from the first position to the second position.

The present application also includes a dental instrument set, which includes the dental instrument 100 of any one of the above, and also includes a second shell-shaped body with a tooth receiving cavity 11 for a plurality of teeth in the opposite jaw, the first shell-shaped body 1 and the third The two shell-shaped bodies are respectively worn on the patient's upper and lower jaw dentitions. The labial and/or buccal sides of the second shell-shaped body 2 are also provided with detachable locking portions from the second connecting portion 22 . The second connecting part 22 is connected to the first connecting part 12 and the locking part simultaneously to lock the relative positional relationship between the upper and lower jaws. Generally, the dental instrument set in this application is used to correct mouth breathing at night. The screen 2 can lock the upper and lower jaws in an occlusal state, thereby helping the patient change from mouth breathing to nasal breathing.

In some embodiments, there is a detachable snap-in structure or a suction cup-type connection structure between the second connection part 22 and the locking part. The specific structure between the locking part and the second connecting part 22 is consistent with the connection relationship between the first connecting part 12 and the second connecting part 22. Referring to the above embodiment between the first connecting part 12 and the second connecting part 22, No need to go into details here.

Please refer to FIG. 16 , which is a schematic flow chart of a manufacturing method of dental instrument 100 in one embodiment of the present application.

In step 400, the patient's oral cavity data is obtained. The oral cavity data includes the patient's tooth data, gum data, and labiobuccal muscle data. In one embodiment, the patient's oral cavity data may be obtained by direct measurements of the patient's oral cavity. In yet another embodiment, a silicone mold may be taken of the patient's oral cavity, and then the model may be measured to obtain data on the patient's oral cavity. In yet another embodiment, the patient's oral cavity can be scanned to obtain a three-dimensional digital model, and then the three-dimensional digital model can be measured to obtain data of the patient's oral cavity. The scanning equipment can include an intraoral scanner, a cone beam CT (CBCT), and Spiral CT, etc.

In some embodiments, the dental data includes tooth shape, dental arch length, and dental arch curvature. The labial and buccinator muscle data include the contours of the upper and lower mandibular vestibular sulcus bottoms, the upper and lower labial muscle contours, and the upper and lower buccinator muscle contours on the left and right sides.

In step 500, a three-dimensional model representing the dental instrument 100 is generated based on the oral cavity data obtained in any of the above methods; including a three-dimensional model of the screen 2 and a three-dimensional model of the first shell-shaped body 1. The three-dimensional model of the first shell-shaped body 1 may be the patient's dental model or a shell-shaped appliance model corresponding to the dental model.

Based on the correction plan, the three-dimensional model of the first shell-like body 1 has a first connection part 12 model generated according to the correction plan, and the three-dimensional model of the screen 2 has a second connection part 22 model generated according to the correction plan.

In some embodiments, according to the needs of the correction plan, the front end of the three-dimensional model of the screen 2 may also be designed with a traction part 21 model. The front end of the three-dimensional model of the screen 2 also has a ventilation hole 24 that penetrates the screen 2 in the sagittal direction.

In step 600, a dental instrument 100 including a first shell body 1 and a shield 2 is produced according to the three-dimensional model. In one embodiment, the dental instrument 100 having the first shell-shaped body 1 and the shield 2 is manufactured using an additive manufacturing method based on the three-dimensional model.

Additive manufacturing can also be called 3D printing. It integrates computer-aided design, material processing and molding technology, and is based on digital model files. Special metal materials, non-metal materials and medical biological materials are extruded through software and CNC systems. , sintering, melting, light curing, spraying and other methods to accumulate layer by layer to create manufacturing technology of physical objects.

It should be noted that, without conflict, the above embodiments can be freely combined as needed to form different new embodiments. The embodiments formed after such combinations are all within the protection scope of the present application. In order to save The length of the application text will not be detailed here.

The above are only preferred embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications should also be made. regarded as the protection scope of this application.

Similarly, the above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. , should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A dental instrument, including a first shell-shaped body having a tooth receiving cavity for accommodating multiple teeth of the jaw, and a shield that is detachably fixedly connected to the labial and buccal sides of the first shell-shaped body, and the first shell-shaped body The relative positional relationship between the main body and the shield is such that after the dental instrument is worn on the jaw, the shield is kept at a predetermined position in the mouth, and the predetermined position allows the lip corresponding to the teeth covered by the shield to be maintained. The buccinator muscle is blocked by the shield and does not contact the covering teeth, wherein when the traction force received by the shield in a predetermined direction is greater than or equal to a predetermined force value, the shield moves from the first shell-shaped Detach without damaging the body.
The dental instrument according to claim 1, wherein the labial side or the labial and buccal side of the first shell-shaped body has a first connecting portion, and the barrier is provided with a surface adjacent to one side of the first shell-shaped body. a second connecting part detachably connected to the first connecting part.
The dental instrument according to claim 1 or 2, wherein the first shell-like body has at least two first connecting parts, and the first connecting parts are arranged symmetrically about the tooth midline.
The dental instrument according to any one of claims 1 to 3, wherein the first connecting portion is provided on the surface of the tooth receiving cavity corresponding to the incisors and/or premolars.
The dental instrument according to any one of claims 2 to 4, wherein the detachable connection structure between the first connection part and the second connection part is a snap-in structure.
The dental instrument according to any one of claims 2 to 5, wherein the first connection part is an anchoring opening structure corresponding to the surface of the tooth receiving cavity, and the anchoring opening structure has an introduction groove and a fixing groove; The second connecting portion is protrudingly disposed on a surface of the shield adjacent to the side of the first shell-like body toward the first shell-like body; the second connecting portion has a connection with the introduction groove. Corresponding guide posts and anchoring portions corresponding to the fixing grooves, the guide posts slide along the introduction grooves until the anchoring portions snap into the fixing grooves.
The dental instrument according to any one of claims 2 to 5, wherein the first connecting part is a mounting base bonded to the surface of the first shell-shaped body, and the mounting base has the function of fixing the second The chute of the connecting part; the chute has an introduction groove and a fixing groove, and the second connecting part faces the first shell-like body on the surface of the side of the screen adjacent to the first shell-like body. The second connecting part has a guide post corresponding to the introduction groove and an anchoring part corresponding to the fixing groove. The guide post slides along the introduction groove until the anchoring part snaps into place. in the fixed groove.
The dental instrument according to claim 6 or 7, wherein the guide post has a retaining portion that prevents the barrier from moving labially, lingually or buccal-lingually, and the distance between the anchoring portion and the retaining portion Equal to the thickness of the first shell-like body.
The dental instrument according to claim 6 or 7, wherein a portion of the guide post adjacent to the anchoring portion passes through the fixing groove, and another portion of the guide post is held outside the fixing groove.
The dental instrument according to any one of claims 2 to 5, wherein the first connection part is a protrusion disposed adjacent to one side surface of the shield in the corresponding tooth receiving cavity; the second connection part The portion is a groove corresponding to the protrusion on a side surface of the first shell-shaped body adjacent to the screen.
The dental instrument according to any one of claims 2 to 4, wherein the first connection part and the second connection part are detachably connected by a suction cup.
The dental instrument according to claim 11, wherein the first connecting part is a surface of the tooth receiving cavity, or a surface of the first connecting part adjacent to the second connecting part is a smooth horizontal surface.
The dental instrument according to any one of claims 1 to 12, wherein the shield is an arcuate structure consistent with the curvature of the dental arch.
The dental instrument according to any one of claims 1 to 13, wherein when worn, the shield is in direct contact with the labial and buccinator muscles, and the labial and buccinator muscles include the upper and lower labial muscles.
The dental instrument according to claim 14, wherein when worn, the buccinator labialis muscles further include upper buccinator muscles and lower buccinator muscles on the left and right sides.
The dental instrument according to any one of claims 1 to 15, wherein the width of the screen in the vertical direction gradually decreases from the anterior region to the posterior region.
The dental appliance of any one of claims 1-16, wherein the screen covers the entire crown of the posterior tooth.
The dental instrument according to any one of claims 1 to 17, wherein the screen extends from 1 mm to 2 mm from the maxillary vestibular sulcus to 1 mm to 2 mm from the mandibular vestibular sulcus.
The dental instrument according to any one of claims 1 to 18, wherein the width of the screen in the vertical direction in the anterior teeth area is not greater than 1.8 cm and/or the width in the posterior teeth area is not less than 0.8 cm.
The dental instrument according to any one of claims 1 to 19, wherein the surface of the shield adjacent to the labial side is provided with a traction portion, and the traction portion is protruding from the labial side of the shield toward the labial side. .
The dental instrument according to claim 20, wherein the traction part and the shield are detachably connected.
The dental instrument according to claim 20 or 21, wherein the traction part and the screen are threadedly connected, a screw is provided on a side of the traction part adjacent to the screen, and the screen is provided with a threaded rod. Equipped with through-holes.
The dental instrument according to any one of claims 1-22, wherein the surface of the shield is provided with a ventilation hole penetrating the shield.
The dental appliance of any one of claims 1-23, wherein the tooth-receiving cavity has a geometry that allows the tooth it encloses to move from a first position to a second position.
A dental instrument set, including the dental instrument according to any one of claims 1-24, and further comprising a second shell-like body having a tooth receiving cavity for a plurality of teeth in the opposite jaw, the second shell-like body The labial side and/or the buccal side are provided with a locking portion that is detachable from the second connecting portion on the screen.
The dental instrument set according to claim 25, wherein the second connecting part and the first connecting part on the first shell-shaped body are connected to the locking part simultaneously to lock the relative positional relationship between the upper and lower jaws.
The dental instrument set according to claim 26, wherein the second connection part and the locking part are detachable snap-in structures or suction cup-type connection structures.
A method of manufacturing dental instruments, including:

Obtain the patient's oral data, which includes the patient's tooth data, gum data, and labiobuccal muscle data;

A three-dimensional model representing the dental instrument is generated based on the oral data; the three-dimensional model includes a three-dimensional model of the screen and a three-dimensional model of the first shell-shaped body; based on the correction plan, the three-dimensional model of the first shell-shaped body has a structure generated according to the correction plan. The first connection part model, and the second connection part model generated according to the correction plan on the three-dimensional screen model;

A dental instrument including a first shell-shaped body and a shield is produced according to the three-dimensional model.
The manufacturing method of claim 28, wherein the tooth data includes tooth shape, dental arch length, and dental arch curvature.
The manufacturing method according to claim 28 or 29, wherein the buccinator labial muscle data includes upper and lower mandibular vestibular sulcus bottom contours, upper and lower labial muscle contours, and upper and lower buccinator muscle contours on the left and right sides.
The manufacturing method according to claim 28, wherein the front end of the three-dimensional screen model further has a traction part model.
The manufacturing method according to claim 28, wherein the front end of the three-dimensional screen model further has a ventilation hole penetrating the screen along the sagittal direction.
The manufacturing method according to claim 28, wherein the dental instrument having the first shell-shaped body and the shield is manufactured using an additive manufacturing method according to the three-dimensional model.