Dental instrument arrangement

Abstract

The utility model discloses a dental instrument device which comprises a shell-shaped body and an auxiliary correction element group, the shell-shaped body is provided with a plurality of tooth cavities for accommodating teeth of a patient, and N through holes are formed in the same surface of the same tooth cavity; the auxiliary orthodontic element group comprises N auxiliary orthodontic elements, the N auxiliary orthodontic elements are respectively pasted on the same surface of teeth of a patient, and the pasting positions of the N auxiliary orthodontic elements are staggered; the setting positions of the N through holes and the pasting positions of the N auxiliary correction elements meet the following conditions: when the orthodontic device is worn, the N auxiliary correction elements respectively penetrate through the N through holes, and at least part of the edge of each through hole is in contact with the outer surface of the auxiliary correction element corresponding to the through hole; therefore, the shell-shaped body is prevented from being separated from the teeth of the patient or orthodontic force for assisting the teeth to move is generated. Wherein 2 < = N < = 10.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, more specifically to the field of dental instruments, and particularly to a dental instrument device. Background Technology

[0002] In the field of orthodontics, with the advancement of technology, clear aligners have emerged. Clear aligners are computer-aided design aligners made of high-polymer transparent elastic materials, such as modern invisible shell aligners. They consist of a series of continuously moving aligners that achieve orthodontic treatment by gradually moving teeth in small increments. They offer advantages such as aesthetics, convenience, minimal discomfort, and ease of cleaning, making them increasingly accepted and used by patients. This orthodontic device can control not only the magnitude of the orthodontic force but also the duration of its application. At different stages of treatment, only certain teeth can move, while others act as anchorage, thus completing the orthodontic process. In the field of clear aligners, when using shell aligners for orthodontic treatment, it is sometimes necessary to add attachments to assist in treatment. These attachments include those that assist in tooth movement (such as translation, rotation, intrusion, and elongation) and retention attachments to achieve retention.

[0003] However, for now, please refer to Figure 1 and Figure 2 These attachments 2 are relatively large. On the one hand, after being bonded to the teeth 3, the large attachments 2 feel foreign and are uncomfortable for the patient, and are not aesthetically pleasing. On the other hand, these large attachments 2 need to be completely enclosed in the cavity of the clear aligner 1. In clinical practice, due to the existence of errors in orthodontic precision, they may come loose, causing the clear aligner 1 to be restarted because it cannot be put back on, resulting in a waste of resources. Furthermore, for complex tooth movements (such as compound movements including translation and rotation), traditional large attachments, such as the protruding long block structure 2, have a single way of cooperating with the clear aligner 1, which is not conducive to flexible adjustment to achieve precise application of orthodontic force. Utility Model Content

[0004] The technical problem solved by this utility model is to overcome the defects of the existing technology and provide a dental instrument device including a shell-shaped body and an auxiliary orthodontic element group. Through the contact deformation of the through hole with multiple small-sized auxiliary orthodontic elements, multi-point force can be applied, which makes it easy to flexibly adjust the resultant force and resultant torque formed by multiple orthodontic forces, thereby achieving precise application of orthodontic force.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A dental instrument device includes: a shell-shaped body having a plurality of tooth cavities for accommodating patient teeth, and N through holes on the same surface of the same tooth cavity; an auxiliary orthodontic element group including N auxiliary orthodontic elements, the N auxiliary orthodontic elements being respectively adhered to the same surface of the patient teeth, the adhered positions of the N auxiliary orthodontic elements being staggered; the positions of the N through holes and the adhered positions of the N auxiliary orthodontic elements satisfy the following condition: when worn, the N auxiliary orthodontic elements pass through the N through holes respectively, and at least a portion of the edge of each through hole contacts the outer surface of the auxiliary orthodontic element corresponding to the through hole, wherein 2≤N≤10. This structural design, through the multi-point contact of N through holes and N auxiliary orthodontic elements, disperses the orthodontic force to multiple points, thereby reducing local stress. Moreover, by adjusting the position of the through holes and the misalignment of the auxiliary orthodontic elements, the direction of force application at each point can be independently designed to achieve translation, rotation, or combined movements. Furthermore, the auxiliary orthodontic elements passing through the through holes form physical limits, which can also effectively prevent the shell-like body from accidentally falling off.

[0007] Preferably, at least a portion of the edge of the through-hole and the outer surface shape of the corresponding auxiliary orthodontic element are different; when worn, the edge of the through-hole contacts the outer surface of the auxiliary orthodontic element and undergoes elastic deformation, generating the orthodontic force on the patient's teeth. By setting the contacting edge of the through-hole and the edge of the auxiliary orthodontic element to different shapes, the edge of the through-hole deforms when the auxiliary orthodontic element passes through the through-hole, generating an elastic orthodontic force.

[0008] Preferably, when each of the through holes and the corresponding auxiliary orthodontic element deforms upon contact, the deformation range of the edge of the through hole is 0.03mm-3mm. By setting the deformation amount, especially when the deformation amount is >0, the shell-like body is forced to deform when the auxiliary orthodontic element passes through the through hole, generating an elastic orthodontic force; and the magnitude of the orthodontic force can be flexibly controlled by adjusting the deformation amount.

[0009] Preferably, there are multiple through holes whose edges are deformed, and at least two of the through holes have the same amount of deformation. This arrangement simplifies the manufacturing process.

[0010] Preferably, the N orthodontic forces form a resultant force that translates the tooth and / or a resultant torque that rotates the tooth to assist in moving the tooth toward the target position. This arrangement allows for the vector superposition of the N orthodontic forces to create different resultant forces and torques, thereby promoting pure translation or pure rotation of the tooth or meeting complex clinical needs.

[0011] Preferably, the positional relationship between the location of the through hole and the corresponding attachment location of the auxiliary orthodontic element is such that: the resultant torque is equal to zero, the resultant force is not equal to zero, and the resultant force assists in the translation of the tooth; or, the resultant force is equal to zero, the resultant torque is not equal to zero, and the resultant torque assists in the rotation of the tooth; or, the resultant force is not equal to zero, the resultant torque is not equal to zero, and the resultant force and the resultant torque assist in the movement of the tooth.

[0012] Preferably, the auxiliary orthodontic element is in the form of a protrusion or bump. The protrusion or bump design increases the contact area between the auxiliary orthodontic element and the through hole, and the height of the protrusion can prevent the shell-like body from falling off, thereby ensuring the stability of the applied force.

[0013] Preferably, a limiting groove is provided at the end of the auxiliary orthodontic element near the patient's tooth surface and at a corresponding position that contacts the edge of the through hole; when worn, at least a portion of the edge of the through hole is held within the limiting groove. This design effectively prevents the edge of the through hole from slipping out.

[0014] Preferably, the auxiliary orthodontic element has a guide portion at the end furthest from the patient's tooth surface. During wear, the auxiliary orthodontic element is inserted into the through-hole from the end furthest from the patient's tooth via the guide portion. The guide portion facilitates quick alignment and passage of the auxiliary orthodontic element through the through-hole for rapid and accurate wear.

[0015] Preferably, the auxiliary orthodontic element includes a main body and an adhesive portion, the adhesive portion being connected to one end of the main body near the patient's tooth surface, wherein the cross-sectional area of ​​the adhesive portion is larger than the end face area of ​​the main body near the patient's tooth surface. By providing an adhesive portion to increase the bonding area, the bonding reliability of the auxiliary orthodontic element is improved, preventing it from falling off during treatment and thus ensuring the stability of force application.

[0016] Preferably, the surface of the adhesive portion facing the patient's teeth is curved. The curved design better conforms to the curvature of the tooth surface, further improving the bonding strength, enhancing patient comfort, preventing detachment during orthodontic treatment, and thus ensuring the stability of applied force.

[0017] Preferably, the surface of the adhesive portion facing the patient's teeth is provided with a retention structure to increase the adhesive area. By providing a retention structure to increase the adhesive area, the bonding reliability of the auxiliary orthodontic element is improved, preventing it from falling off during orthodontic treatment and thus ensuring the stability of force application.

[0018] Preferably, the cross-sectional dimension of the auxiliary orthodontic element is 1mm-2mm. This ensures sufficient structural strength while avoiding excessive size that could affect patient comfort; simultaneously, a smaller size allows the auxiliary orthodontic element to be more concealed and aesthetically pleasing. Attached Figure Description

[0019] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same numerical reference numerals are denoted as similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0020] Figure 1 This is a schematic diagram of the structure of the accessory and dental instrument in the present invention.

[0021] Figure 2 for Figure 1 A schematic diagram of the cross-sectional shape of the tooth containing the central appendage along the P-P' direction;

[0022] Figure 3 This is a schematic diagram of the structure of a dental instrument device according to the present invention;

[0023] Figure 4 for Figure 3 A schematic diagram of the cross-sectional shape of the tooth containing the middle appendage along the Q-Q' direction;

[0024] Figure 5 This is a partial structural diagram of the tooth cavity in conjunction with the auxiliary orthodontic element assembly in this utility model;

[0025] Figure 6 This is a partial structural diagram of another tooth cavity in this invention that works in conjunction with an auxiliary orthodontic element assembly;

[0026] Figure 7 This is a partial structural diagram of a tooth cavity that is used in conjunction with an auxiliary orthodontic element assembly according to this utility model;

[0027] Figure 8 This is a schematic diagram of the force analysis of a tooth in this utility model;

[0028] Figure 9 This is a schematic diagram illustrating another force analysis of the teeth in this utility model;

[0029] Figure 10 This is another schematic diagram of the force analysis of the teeth in this utility model;

[0030] Figure 11 This is a schematic diagram illustrating another type of force analysis of the teeth in this utility model;

[0031] Figure 12 This is a longitudinal cross-sectional schematic diagram of an auxiliary orthodontic element according to the present invention;

[0032] Figure 13 This is a longitudinal cross-sectional schematic diagram of an auxiliary orthopedic element comprising a main body and an adhesive part according to the present invention;

[0033] Figure 14 This is a longitudinal cross-sectional schematic diagram of an auxiliary orthodontic element of the present invention, which includes another main body and an adhesive part;

[0034] Figure 15 This is a longitudinal cross-sectional schematic diagram of the auxiliary orthodontic element in this utility model, where the adhesive part includes a retention structure;

[0035] Figure 16 This is a longitudinal cross-sectional schematic diagram of an auxiliary orthodontic element in which the adhesive part includes another retention structure. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of the invention. However, the technical solutions claimed by this utility model can be implemented even without these technical details and with various variations and modifications based on the following embodiments. The division of the various embodiments below is for ease of description and should not constitute any limitation on the specific implementation of this utility model.

[0037] The directional terms "up," "down," "left," and "right" used in this document refer to the directions shown in the accompanying drawings and do not imply any specific limitation. Unless otherwise explicitly stated or limited, the term "connection" in this document should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part of a structure. It can refer to a direct connection or an indirect connection through an intermediate medium.

[0038] As described in the background section, the attachments currently used to assist in the movement or retention of teeth with clear aligners are large in size. They are not only unsightly and uncomfortable, but also prone to falling off due to errors in orthodontic precision. This can lead to the clear aligners becoming unwearable and requiring restarting, resulting in wasted resources. Furthermore, for complex tooth movements, traditional large attachments cannot be flexibly adjusted to apply precise orthodontic forces.

[0039] Based on this, this application proposes a dental instrument device, including a shell-shaped body and an auxiliary orthodontic element assembly. The shell-shaped body is worn on the patient's dentition. The shell-shaped body is characterized by having several tooth cavities for accommodating teeth. Each tooth cavity has multiple through holes on the same surface. A set of auxiliary orthodontic elements matching the through holes is adhered to the corresponding surface of the teeth enclosed in the tooth cavities. Each auxiliary orthodontic element assembly includes auxiliary orthodontic elements with the same number of through holes. These multiple auxiliary orthodontic elements are connected to the shell-shaped body through the through holes, thereby generating multiple orthodontic forces during wear, ultimately forming a resultant force and torque to assist tooth movement. By adjusting the misalignment between the through hole positions and the auxiliary orthodontic elements, the direction of force application at each point can be independently designed to achieve translation, rotation, or combined movements. Furthermore, the auxiliary orthodontic elements pass through the through holes, forming physical limits, ensuring a secure fit between the shell-shaped body and the auxiliary orthodontic elements, effectively preventing accidental dislodgement of the shell-shaped body.

[0040] The following will provide a detailed explanation with reference to the illustrations.

[0041] Please refer to Figure 3 and Figure 4 As shown, this application provides a dental instrument device 100, including a shell-shaped body 10 and an auxiliary orthodontic element assembly 20. The shell-shaped body 10 is worn on the patient's dentition and has a plurality of tooth cavities 11 for accommodating the patient's teeth 30. N through holes 12 are provided on the same surface of the same tooth cavity 11, wherein 2≤N≤10. The same surface of the same tooth cavity 11 can be the lingual surface or the buccal surface of the tooth cavity 11. In this embodiment, there are two through holes 12, which are provided on the buccal surface of one tooth cavity 11. In other embodiments, the number of through holes 12 can be three or more as needed. Further explanation of the auxiliary orthodontic element group 20: The auxiliary orthodontic element group 20 includes N auxiliary orthodontic elements 21. The N auxiliary orthodontic elements 21 are respectively adhered to the same surface of the patient's tooth 30. The number of auxiliary orthodontic elements 21 is the same as the number of through holes 12. N auxiliary orthodontic elements 21 on the same tooth 30 surface constitute one auxiliary orthodontic element group 20. The adhered positions of different auxiliary orthodontic elements 21 on the same tooth 30 surface are staggered, forming multiple non-connected auxiliary orthodontic elements 21. Please refer to [reference needed]. Figure 1 and Figure 2As shown, compared with Appendix 2 in the background art, the auxiliary orthodontic element 21 in this application is very small, and the volume of the auxiliary orthodontic element group 20 formed by the combination is also smaller in the oral cavity than that in Appendix 2 in the background art. When the dental instrument device 100 of this application is worn in the oral cavity, the position of the bonded auxiliary orthodontic element group 20 has less foreign body sensation, improving patient comfort. Moreover, when worn, when multiple non-connected auxiliary orthodontic elements 21 make contact with the through holes 12 of the shell-shaped body 10, the edges of the multiple through holes 12 make contact with the outer surfaces of the multiple auxiliary orthodontic elements 21 and undergo elastic deformation, forming multi-point orthodontic force on the patient's teeth 30, which can reduce local stress. Multiple auxiliary orthodontic elements 21 pass through N through holes 12, forming physical constraints. At least a portion of the edge of each through hole 12 contacts the outer surface of the auxiliary orthodontic element 21 corresponding to that through hole 12. This physical constraint and contact helps prevent the shell-like body 10 from detaching from the patient's tooth 30, effectively preventing accidental dislodgement of the shell-like body 10 and achieving a good retention effect. When this contact causes elastic deformation of the edge of the through hole 12, its restoring deformation force can also generate an orthodontic force to assist in the movement of the tooth 30. In addition, by adjusting the misalignment relationship between the position of the through hole 12 and the auxiliary orthodontic element 21, the direction of force application at each point can be independently designed to achieve translation, rotation, or combined movements.

[0042] Furthermore, the inner edge dimension of the through hole 12 must be greater than or equal to the outer contour dimension of the auxiliary orthodontic element 21 to ensure that the auxiliary orthodontic element 21 can pass smoothly through the through hole 12. In particular, when the inner edge dimension of the through hole 12 is greater than the outer contour dimension of the auxiliary orthodontic element 21, the through hole 12 has a certain amount of extra space when the auxiliary orthodontic element 21 passes through the through hole 12, making the device more convenient to wear.

[0043] For further explanation, please refer to Figure 5 and Figure 6 As shown, at least a portion of the edge of the through-hole 12 and the outer surface shape of the corresponding auxiliary orthodontic element 21 are different. When worn, the edge of the through-hole 12 contacts the outer surface of the auxiliary orthodontic element 21 and undergoes elastic deformation, generating the orthodontic force on the patient's teeth 30. Through the difference in shape, elastic deformation occurs, and the deformation recovery force forms the orthodontic force. This deformation recovery force can dynamically adapt to the movement of the teeth 30, providing continuous orthodontic force. Figure 5Two auxiliary orthodontic elements 21 are bonded to the surface of the tooth 30 shown. These elements can be cylindrical. The shell-like body 10 has two through-holes 12 that mate with these elements, with edge shapes different from the outer surface shape of the auxiliary orthodontic elements 21. These through-holes are rhomboid and square, respectively. When worn, the through-holes 12 and the outer surface of the auxiliary orthodontic elements 21 are in contact, and their relative positions are the same. The only difference lies in the shape of the edge of the through-hole 12 and the outer surface shape of the corresponding auxiliary orthodontic element 21. During wear, this difference in shape causes elastic deformation, generating orthodontic force. For example... Figure 6 Two auxiliary orthodontic elements 21 are bonded to the surface of the tooth 30 shown. They can be arranged in a cylindrical shape. The edge shape of the two through holes 12 on the shell-shaped body 10 that cooperate with them is different from the outer surface shape of the auxiliary orthodontic element 21, and is rhomboid. When worn, only part of the edge of the through hole 12 contacts the outer surface of the auxiliary orthodontic element 21, and the relative positions of the through hole 12 and the auxiliary orthodontic element 21 are inconsistent. When worn, the outer surface of the auxiliary orthodontic element 21 and the edge of the through hole 12 undergo elastic deformation due to the positional difference, forming an orthodontic force.

[0044] To further explain, when each of the through holes 12 and the corresponding auxiliary orthodontic element 21 comes into contact and deforms, the deformation range of the edge of the through hole 12 is 0.03mm-3mm. During wear, the edge of the through hole 12 contacts the outer surface of the auxiliary orthodontic element 21 and undergoes elastic deformation, generating elastic orthodontic force, further enhancing the effect of the orthodontic force. Clinically, the orthodontic force can be flexibly controlled by adjusting the deformation amount; for example, the larger the deformation value, the stronger the orthodontic force. It is understood that the deformation amount needs to be set within a reasonable range. If the deformation amount is too small, an effective orthodontic force will not be generated; if the deformation amount is too large, there may be a risk of dislodgement when the auxiliary orthodontic element 21 passes through the through hole 12, making it impossible to wear. Therefore, in this embodiment, the deformation amount is set to a range of 0.03mm-3mm.

[0045] To further explain, there are multiple through holes whose edges deform, with at least two through holes having equal deformation amounts. This arrangement simplifies the manufacturing process. When all the deformation amounts are equal, the initial deformation of each auxiliary orthodontic element 21 passing through its corresponding through hole 12 is almost equal, resulting in almost equal orthodontic forces. This leads to a uniform distribution of orthodontic force across the tooth surface, improving patient comfort. When the number of through holes 12 and auxiliary orthodontic elements 21 is greater than two, some deformation amounts can be set to be equal. For example, one deformation amount can be unequal, while the rest are equal. Medical designers can then comprehensively design based on the resultant force and resultant torque required for tooth movement.

[0046] In this application, N orthodontic forces form a resultant force that translates the tooth and a resultant torque that rotates the tooth. The resultant force and torque assist the tooth in moving towards the target position. This arrangement allows for the vector superposition of N orthodontic forces to form different resultant forces and torques, thereby promoting pure translation, pure rotation, or meeting complex clinical needs. Specifically, the positional relationship between the location of the through-hole 12 and the corresponding attachment location of the auxiliary orthodontic element 21 is such that: the resultant torque is zero, the resultant force is not zero, and the resultant force assists in the translation of the tooth; or, the resultant force is zero, the resultant torque is not zero, and the resultant torque assists in the rotation of the tooth; or, the resultant force is not zero, the resultant torque is not zero, and both the resultant force and the resultant torque assist in the movement of the tooth.

[0047] Regarding the multiple orthodontic forces generated by the interaction of the through-hole 12 and the auxiliary orthodontic element 21, and how the resultant force and torque formed by these multiple orthodontic forces promote the movement of tooth 30, this application will combine... Figures 7 to 11 The explanation is as follows: points A and B indicate the points of action of F1 and F2, point C indicates the impedance center of tooth 30, and the label 31 indicates the root portion. The impedance center of a tooth is usually basically consistent with the geometric center of the root. Figure 7 As shown, two auxiliary orthodontic elements 21 are bonded to the surface of tooth 30. Two through holes 12 are provided in the tooth cavity 11. When worn, the right edge of these two through holes 12 contacts the right outer surface of the two auxiliary orthodontic elements 21, generating two horizontal leftward orthodontic forces (F1, F2) on tooth 30, respectively. The force distribution is as follows. Figure 8 As shown, the magnitude of the resultant force on tooth 30 is the sum of the magnitudes of F1 and F2, which can be expressed as F = F1 + F2, which is greater than 0. The direction of the resultant force is horizontal to the left, causing tooth 30 to translate. Relative to the impedance center point C, the lever arm of F1 is L1, and the lever arm of F2 is L2. The resultant torque of F1 and F2 is M = F1*L1 + F2*L2, which is greater than 0, causing tooth 30 to rotate counterclockwise. Thus, tooth 30 undergoes a combined translational and rotational movement. Figure 9 In the above scenario, the magnitude of the resultant force on tooth 30 is the sum of the magnitudes of F1 and F2, which can be expressed as F = F1 + F2, greater than 0. The direction of the resultant force is horizontal to the right, causing tooth 30 to translate. Relative to the impedance center C, the lever arm of F1 is L1, and the lever arm of F2 is L2. The resultant torque of F1 and F2, M = F1*L1 + F2*L2, is greater than 0, causing tooth 30 to rotate clockwise. Thus, tooth 30 will undergo a combined translational and rotational movement. Figure 8 and Figure 9 The forces F1 and F2 shown below are in the same direction; Figure 10 and Figure 11The directions of forces F1 and F2 shown are different, as further explained below.

[0048] For example Figure 10 As shown, tooth 30 is subjected to two parallel orthodontic forces (F1, F2) of equal magnitude and opposite direction, which are not collinear. This force system forms a couple, and the resultant force on tooth 30 is 0, so tooth 30 will not translate. In this embodiment, the distance between F1 and F2 is D, and the couple moment (i.e., the resultant moment M) = F1 * D, which is greater than 0; thus, tooth 30 will undergo pure rotation. For example... Figure 11 As shown, the positional relationship between the setting position of the through hole 12 and the corresponding pasting position of the auxiliary orthodontic element 21 is such that: when worn, the tooth 30 is subjected to a horizontal leftward orthodontic force F1 and a horizontal rightward orthodontic force F2, and the horizontal rightward orthodontic force is greater than the horizontal leftward orthodontic force. At this time, the resultant force F on the tooth 30 is the vector sum of F1 and F2, the magnitude of the resultant force F is the difference between the values ​​of F2 and F1, and the direction of the resultant force F is horizontal to the right, and the tooth 30 will translate. Relative to the impedance center point C, the lever arm of F1 is L1, the lever arm of F2 is L2, and the resultant torque of F1 and F2 is M = F2*L2 - F1*L1. When M is not equal to 0, the tooth 30 will rotate, and thus, the tooth 30 will undergo a combined translation and rotation movement; when M is equal to 0, the tooth 30 will not rotate, and thus, the tooth 30 will only translate.

[0049] To further explain, the auxiliary orthodontic element 21 is in the form of a protrusion or bump. The protrusion or bump structure protrudes from the tooth surface in a direction away from the tooth surface. This protrusion or bump structure can increase the contact area between the auxiliary orthodontic element 21 and the through hole 12, and the height of the protrusion or bump structure can prevent the shell-shaped body 10 from falling off, thereby ensuring the stability of the applied force.

[0050] Furthermore, a limiting groove 22 is provided at the end of the auxiliary orthodontic element 21 near the patient's tooth surface and at the corresponding position that contacts the edge of the through hole 12; please refer to Figure 12 As shown in the longitudinal cross-sectional schematic diagram, the limiting groove 22 is formed by the inward indentation of the side surface of the auxiliary orthodontic element 21. With this configuration, when worn, at least a portion of the edge of the through hole 12 is held in the limiting groove 22, which can effectively prevent the edge of the through hole 12 from slipping off and help ensure the stability of the applied force.

[0051] Furthermore, the auxiliary orthodontic element 21 is provided with a guide portion 23 at the end furthest from the patient's tooth surface. The structure of the guide portion 23 satisfies the following condition: when worn, the auxiliary orthodontic element 21 passes through the through hole 12 from the end furthest from the patient's tooth via the guide portion 23. This can be achieved by setting the outer contour dimension of the end furthest from the patient's tooth surface of the guide portion 23 to be smaller than the inner edge dimension of the through hole 12. When the through hole 12 is circular, the inner edge dimension is the inner diameter of the circle, and its longitudinal cross-sectional shape can be as follows: Figure 12 The trapezoidal shape shown can also be represented as... Figures 14 to 16 The semi-circle shown. The guide part 23 facilitates the quick alignment and passage of the auxiliary orthodontic element 21 through the through hole 12 for quick and accurate wearing.

[0052] The auxiliary orthodontic element 21 of this application is small in size, typically with a cross-sectional dimension of 1mm-2mm. This size ensures sufficient structural strength while avoiding excessive size that could affect patient comfort. At the same time, this size of auxiliary orthodontic element 21 makes it more invisible, more aesthetically pleasing, and more likely to be favored by patients.

[0053] Furthermore, it is necessary to meet the requirement of having a sufficiently small cross-sectional size to achieve adequate concealment, while also ensuring that this small, concealed auxiliary orthodontic element 21 can be securely bonded to the tooth surface. Please refer to [link / reference needed]. Figures 13 to 16 As shown, the auxiliary orthodontic element 21 may further include a main body 24 and an adhesive portion 25. The adhesive portion 25 is connected to one end of the main body 24 near the patient's tooth surface, wherein the cross-sectional area of ​​the adhesive portion 25 is larger than the area of ​​the end face S1 of the main body 24 near the patient's tooth surface. By providing the adhesive portion 25 to increase the bonding area, the bonding strength of the auxiliary orthodontic element 21 is improved, preventing it from falling off during treatment, thereby ensuring the stability of force application. This allows the auxiliary orthodontic element 21 to be both sufficiently invisible and sufficiently stable.

[0054] Preferably, the surface S2 of the adhesive portion 25 facing the patient's teeth is an arc surface. This arc surface design can conform to the curvature of the tooth surface, which not only further increases the bonding surface area, but also further conforms to the shape of the tooth surface, helping to further improve the bonding strength and prevent detachment during orthodontic treatment, thereby ensuring the stability of force application; moreover, the design that conforms to the tooth surface can also improve the patient's comfort.

[0055] Preferably, this application may further provide a retention structure 26 on the surface S2 of the adhesive portion 25 facing the patient's teeth to increase the adhesive area. The retention structure 26 may be as follows: Figure 15 and Figure 16As shown, the adhesive portion 25 is recessed inward from the surface S2 on the side facing the patient's teeth, forming multiple groove structures. During bonding, the adhesive can overflow into the groove structures, further expanding the bonding area of ​​the adhesive. This can improve the bonding reliability of the auxiliary orthodontic element 21, prevent the auxiliary orthodontic element 21 from falling off during the orthodontic process, and thus ensure the stability of the applied force.

[0056] It should be noted that the above embodiments can be freely combined as needed to form different new implementation schemes without causing contradictions. All implementation schemes formed by such combinations are within the protection scope of this application. In order to save space in the application text, they will not be described in detail here.

[0057] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the inventive principle of this invention, and these improvements and modifications should also be considered within the scope of protection of this application.

[0058] Similarly, the above descriptions are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A dental instrument device, characterized in that, include: A shell-shaped body, wherein the shell-shaped body is provided with a plurality of tooth cavities for accommodating the patient's teeth, and N through holes are provided on the same surface of the same tooth cavity; An auxiliary orthodontic element group includes N auxiliary orthodontic elements, which are respectively bonded to the same surface of the patient's teeth, and the bonding positions of the N auxiliary orthodontic elements are staggered. The positions of the N through holes and the positions of the N auxiliary orthodontic elements satisfy the following condition: when worn, the N auxiliary orthodontic elements pass through the N through holes respectively, and at least a portion of the edge of each through hole contacts the outer surface of the auxiliary orthodontic element corresponding to the through hole; wherein, 2≤N≤10.

2. The dental instrument device according to claim 1, characterized in that... The shape of at least part of the edge of the through hole and the outer surface of the auxiliary orthodontic element corresponding to the through hole are different; when worn, the edge of the through hole contacts the outer surface of the auxiliary orthodontic element and undergoes elastic deformation, thereby generating an orthodontic force on the patient's teeth.

3. The dental instrument device according to claim 1, characterized in that... When at least one of the through holes and the corresponding auxiliary orthodontic element deforms upon contact, the deformation of the edge of the through hole ranges from 0.03 mm to 3 mm.

4. The dental instrument device according to claim 3, characterized in that... There are multiple through holes whose edges are deformed, and at least two of the through holes have the same amount of deformation.

5. The dental instrument device according to claim 2, characterized in that, The N corrective forces form a resultant force that translates the tooth and / or a resultant torque that rotates the tooth to assist the tooth in moving toward the target position.

6. The dental instrument device according to claim 5, characterized in that, The positional relationship between the location of the through hole and the corresponding attachment location of the auxiliary orthodontic element is such that: the resultant torque is equal to zero, the resultant force is not equal to zero, and the resultant force assists in the translation of the tooth; Alternatively, the resultant force is equal to zero, the resultant torque is not equal to zero, and the resultant torque assists the teeth in rotating; Alternatively, the resultant force is not equal to zero, the resultant torque is not equal to zero, and the resultant force and the resultant torque assist the tooth movement.

7. The dental instrument device according to claim 1, characterized in that... The auxiliary orthodontic element is in the form of a protrusion or a bump.

8. The dental instrument device according to claim 1 or 7, characterized in that... A limiting groove is provided at one end of the auxiliary orthodontic element near the patient's tooth surface and at the corresponding position that contacts the edge of the through hole; when worn, at least a portion of the edge of the through hole is held in the limiting groove.

9. The dental instrument device according to claim 1 or 7, characterized in that... The auxiliary orthodontic element has a guide portion at one end away from the patient's tooth surface. When worn, the auxiliary orthodontic element is inserted into the through hole from the end away from the patient's tooth through the guide portion.

10. The dental instrument device according to claim 1, characterized in that... The auxiliary orthodontic element includes a main body and an adhesive part, wherein the adhesive part is connected to one end of the main body near the patient's tooth surface, and the cross-sectional area of ​​the adhesive part is larger than the end face area of ​​the main body near the patient's tooth surface.

11. The dental instrument device according to claim 10, characterized in that... The surface of the adhesive portion facing the patient's teeth is an arc surface.

12. The dental instrument device according to claim 10 or 11, characterized in that... The adhesive portion has a retention structure on the surface facing the patient's teeth to increase the adhesive area.

13. The dental instrument device according to any one of claims 1-3, characterized in that... The cross-sectional dimensions of the auxiliary orthodontic element are 1mm-2mm.

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