CN219680801U - Shell-shaped dental instrument set and dental correction system - Google Patents

Abstract

The utility model discloses a shell-shaped dental instrument set, which comprises a first shell-shaped dental instrument with a first shell body and a second shell-shaped dental instrument with a second shell body, wherein the first shell-shaped body and the second shell-shaped body respectively comprise a plurality of cavities for accommodating teeth of a patient, an occlusion adjusting plate capable of adjusting the relationship between upper jaw and lower jaw is arranged on the lingual side of a front tooth area of the first shell-shaped body, the occlusion adjusting plate is provided with a geometric structure for vertically and upwardly adjusting the teeth of the front tooth area to a target occlusion position, the first shell-shaped dental instrument and the second shell-shaped dental instrument are respectively used for wearing the same dental jaw in an occlusion adjusting period and a non-occlusion adjusting period in the same correcting step, so that the problems that the occlusion disorder of the lower jaw position and the influence of foreign body sensation on sleeping quality of a patient are easily caused when the traditional dental instrument with flat guide is worn in sleep are solved on the premise of ensuring correcting efficiency.

Description

Shell-shaped dental instrument set and dental correction system

Technical Field

The utility model relates to the technical field of tooth correction, in particular to a shell-shaped dental instrument set and a dental correction system.

Background

The deep occlusion of the front teeth is caused by abnormal development of any one or two of the upper and lower dental arches or upper and lower jawbones in the vertical direction, and the upper front teeth cutting edge covers one or more three positions of the length of the lower front teeth crown or the lower front teeth are occluded to one or more third of the lingual side of the upper front teeth, so that a patient can easily bite the upper gums, and periodontitis diseases of the front teeth and facial joint diseases are caused. The correction of deep covering greatly determines the success or failure of correction, and the purpose of correcting deep covering is to correct the Spee curve with the steeper mandible and the compensation curve of the upper jaw, and finally, the Spee curve with the normal upper and lower dentitions and the compensation curve are achieved, so that the covering relation of anterior teeth is coordinated. In most malocclusion patients, deep occlusion correction may be the primary step in the overall correction process, and open occlusion is critical to correct deep occlusion.

In order to open occlusion and solve the problem of deep occlusion of anterior teeth, the prior art generally adopts a mode of arranging a flat guide on the lingual side of the anterior teeth area of the upper jaw, and the flat guide is utilized to prop against the anterior teeth during occlusion, so that the posterior teeth have a rising space, and the purposes of opening occlusion, flattening dental arches, depressing the upper anterior teeth and lifting the posterior teeth are achieved.

Currently, for a patient with a jaw error with deep anterior teeth, in order to obtain a better correction effect, a maxillary appliance with a flat guide plate arranged on the lingual side is always worn, namely, the maxillary dentition of the patient wears the appliance with the flat guide plate on the lingual side, however, according to research, the mandible is actually in a mandibular position (mpp) when the patient sleeps at night, the mandibular position is a position where the mandible is in when the patient keeps naturally relaxed, the mandibular position is a very relaxed position, lips are naturally closed in the mandibular position, and the mandibular position is also called a jaw rest position through nose natural breathing. When the lower jaw of a patient is in a lower jaw posture position during night sleep, the patient cannot bite the corresponding position of the flat guide plate independently, and at the moment, the corresponding effect of the flat guide plate cannot be achieved at all, on the contrary, because the patient is in an unconscious state during sleep, if the flat guide plate exists, two situations can exist, one is that the lower teeth are not completely collided with the flat guide plate, the other situation is that the lower teeth are unconsciously collided with the flat guide plate, the lower jaw position is not the lower jaw posture position, the patient is in the unconscious state, the collided position is not the correctly corresponding flat guide plate position, the sleeping time of the person generally needs a long time, the disorder of the long-term position easily causes the occlusion disorder of the lower jaw position, the discomfort of temporomandibular muscle group is caused, the correction effect is inevitably affected, meanwhile, the phenomenon that part of teeth are suspended is generated after the flat guide plate is always fixed on the upper jaw, the patient wears the device with the flat guide plate, and the sleeping time period is easy to influence the sleeping quality of the patient.

Disclosure of Invention

The utility model aims to provide a shell-shaped dental instrument set and a dental correction system, which are used for solving the problems that the occlusion disorder of the mandibular position and the influence of foreign body sensation of a patient on sleep quality are caused when the traditional dental instrument with a flat guide is worn during sleep on the basis of ensuring correction efficiency.

In order to achieve the above-mentioned object, the present utility model provides a shell-shaped dental instrument set, which comprises a first shell-shaped dental instrument having a first shell body and a second shell-shaped dental instrument having a second shell body, wherein the first shell-shaped body and the second shell-shaped body respectively comprise a plurality of cavities for accommodating teeth of a patient, a lingual side of an anterior tooth area of the first shell-shaped body is provided with an occlusion adjusting plate capable of adjusting a relationship between upper and lower jaws, the occlusion adjusting plate has a geometric structure for vertically adjusting teeth of the anterior tooth area to a target occlusion position, and the first shell-shaped dental instrument and the second shell-shaped dental instrument are respectively used for wearing the same dental jaw in an occlusion adjusting period and a non-occlusion adjusting period in the same correction step.

In some alternative embodiments, the bite adjustment plate is a unitary structure that connects lingual sides of the anterior tooth area of the first shell body.

In some alternative embodiments, the bite adjustment plate is disposed at least on the lingual side of the teeth of the anterior dental area portion of the first shell body.

In some alternative embodiments, the lingual side of each tooth of the anterior tooth area of the first shell body is provided with the bite adjustment plate.

In some alternative embodiments, the bite adjustment plate is integrally formed with the first shell body and extends lingually from the anterior tooth area of the first shell body.

In some alternative embodiments, the first shell-like body and the second shell-like body are shells of the same material and are identical in shape to have the same corrective force and/or moment to achieve the same function.

In some alternative embodiments, the first shell-like body and the second shell-like body are shells of different materials and are identical in shape to have different correction forces and/or moments to achieve different functions.

In some alternative embodiments, the elastic modulus of the first shell body material is greater than the elastic modulus of the second shell body material such that the first shell body, when worn, produces a first amount of tooth movement and the second shell body, when worn, maintains at least the first amount of tooth movement produced by the first shell body.

In some alternative embodiments, the first shell-like body and the second shell-like body are shells of the same material and are different in shape to have different correction forces and/or moments to achieve different functions.

In some alternative embodiments, the thickness of the first shell body is greater than the thickness of the second shell body such that the first shell body, when worn, creates a first amount of tooth movement and the second shell body, when worn, maintains at least the first amount of tooth movement created by the first shell body.

In some alternative embodiments, the first shell-like body and the second shell-like body are shells of different polymeric materials and are shaped differently to have different correction forces and/or moments to achieve different functions.

In some alternative embodiments, the first shell body material has a modulus of elasticity that is greater than the modulus of elasticity of the second shell body material, and the first shell body has a thickness that is greater than the thickness of the first shell body such that the first shell body, when worn, creates a first amount of tooth movement and the second shell body, when worn, retains at least the first amount of tooth movement created by the first shell body.

In some alternative embodiments, the bite adjustment plate is of a split construction with the first shell body, the first shell body being at least partially connected to the lingual side of the anterior dental area of the first shell body.

In some alternative embodiments, the lingual connection of the bite adjustment plate to the anterior tooth area of the first shell body includes any one of an adhesive, a weld, and a rivet.

In some alternative embodiments, the bite adjustment plate and opposing jaw contact surface is provided with a cushioning layer to cushion contact of the bite adjustment plate with opposing jaw teeth.

In some alternative embodiments, the cushioning layer has a stiffness that is less than the stiffness of the bite adjustment plate.

In some alternative embodiments, the bite adjustment plate is positioned at different locations on the lingual side of the anterior dental area during different corrective procedures, the location on the lingual side of the anterior dental area being such that the anterior teeth open substantially matches the target when the first shell-like body with the bite adjustment plate is worn.

In order to achieve the above object, the present utility model further provides a dental appliance system, which comprises N shell dental appliance sets, at least M of the N shell dental appliance sets are the shell dental appliance sets, where m+.n, M, N is a positive integer.

In some alternative embodiments, the M shell dental instrument kits are kits in successive orthodontic steps.

In some alternative embodiments, the relative positions of the bite adjustment plates of the first shell dental appliances of the M shell dental appliance sets to the corresponding teeth vary with the position of the corresponding teeth to the opposing jaw teeth such that the extent to which each first shell dental appliance opens the anterior bite substantially corresponds to the target.

Compared with the prior art, the shell-shaped dental instrument set and the dental correction system have the following beneficial effects:

1. according to the utility model, the first shell-shaped dental instrument with the occlusion adjusting plate is used for being worn on the maxillary teeth of a patient in the occlusion adjusting period, and the second shell-shaped dental instrument without the occlusion adjusting plate is used for being worn on the maxillary teeth of the patient in the non-occlusion adjusting period, so that the problem that the occlusion position of the mandible of the patient is disordered and the temporomandibular muscle group is uncomfortable caused by using the first shell-shaped dental instrument with the occlusion adjusting plate in the non-occlusion adjusting period can be avoided, the foreign body sensation of the patient in the non-occlusion adjusting period can be reduced, the comfort level can be improved, and the sleeping quality of the patient can be improved;

2. According to the utility model, the first shell-shaped body used in the occlusion adjustment period applies larger correction force, and the second shell-shaped body used in the non-occlusion adjustment period applies smaller correction force to keep the first tooth movement amount so that the position of the teeth is not rebounded, so that the correction process in the non-occlusion adjustment period can be more comfortable, the better retaining effect can be achieved, the comfort level of the correction process in the non-occlusion adjustment period is improved, and the sleeping quality of a patient is further improved;

3. according to the utility model, the relative positions of the occlusion adjusting plate on the lingual side of the first shell-shaped dental instrument and the corresponding teeth are changed along with the positions of the corresponding teeth and the corresponding teeth, so that the degree of occlusion of the open front teeth is basically consistent with a target when the first shell-shaped dental instrument is worn in an occlusion adjusting period in different correction steps, and the correction effect of the occlusion adjusting period is improved.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings.

FIG. 1 is a block diagram of a shell dental instrument kit according to a first embodiment of the present utility model;

FIG. 2 is a block diagram of a first shell dental implement according to a first embodiment of the present utility model;

FIG. 3 is a cross-sectional view of A-A, B-B of a shell dental instrument kit according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of A-A, B-B of a shell dental instrument kit according to a second embodiment of the present utility model;

fig. 5 is a block diagram of a shell dental instrument kit according to a third embodiment of the present utility model.

Detailed Description

As known from the background art, for patients with malocclusions with deep anterior teeth, which need to open the anterior teeth during the whole or at least some stage of the orthodontic treatment, flat guide plates are arranged on the corresponding shell-shaped orthodontic appliances. In general, a flat guide is provided on the lingual side of the anterior teeth portion of the maxillary shell-shaped dental orthodontic appliance such that, in an occlusal state, the anterior teeth of the mandible are abutted against the active surface of the flat guide, thereby opening the occlusion of the anterior teeth.

At present, in each correcting step, whether the upper dentition of a patient wears the correcting device with the flat guide plate on the lingual side all the time in daytime or at night, however, according to research, the human body is actually in the mandibular posture position when sleeping at night, when the mandible of the patient is in the mandibular posture position at night, the patient cannot bite the corresponding position of the flat guide plate independently, at the moment, the flat guide plate on the correcting device cannot play the corresponding role of the flat guide plate at all, conversely, because the patient is in an unconscious state in the sleeping state, if the flat guide plate exists, two situations can exist, one situation is that the mandibular teeth completely touch the flat guide plate, namely the mandibular posture position, and the other situation is that the mandibular teeth can unconsciously touch the flat guide plate, then the mandibular posture position is not in the mandibular posture position, because the patient is in the conscious state, and the position at the moment is not in the correct corresponding position, namely the position is likely to be disordered, the sleeping time of the person generally needs long time, the disordered position is likely to cause the disordered position, the mandibular position is easy to bite, at the time is in the unconscious state, at the time, if the flat guide plate exists, the flat guide plate is possibly exists, the situation is not the mandibular teeth is completely touched, the mandibular teeth completely, the human body is influenced by the human body, the sleeping position is influenced by the human body, and the human body is not has the abnormal position, and the human body is caused to sleep, and the human body is easily, and the human body is caused to sleep, and has the human body. Therefore, the first shell-shaped dental instrument provided with the occlusion adjusting plate is worn on the upper jaw in the occlusion adjusting period, and the second shell-shaped dental instrument without the occlusion adjusting plate is worn on the upper jaw in the non-occlusion adjusting period, wherein the first shell-shaped dental instrument provided with the occlusion adjusting plate is used for adjusting the position of teeth in a mandibular anterior dental zone relative to the upper jaw to be vertically upwards to a target occlusion position in the occlusion adjusting period, and the second shell-shaped dental instrument without the occlusion adjusting plate is worn in the non-occlusion adjusting period, so that the intraoral foreign body sensation of a sleeping period is reduced, the sleeping quality of a patient is improved, and the disorder of the occlusion position of the lower jaw is avoided.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, it will be understood by those of ordinary skill in the art that in various embodiments of the present utility model, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, the claimed technical solution of the present utility model can be realized without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present utility model, and the embodiments can be mutually combined and referred to without contradiction.

Specific embodiments of the present utility model will be described below with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

Embodiment one:

the structure of the shell-shaped dental instrument set provided in this embodiment is shown in fig. 1, and in this embodiment, a shell-shaped dental instrument set at least includes: including a first shell dental appliance 101 and a second shell dental appliance 102, the first shell dental appliance 101 including a first shell body including a plurality of cavities for receiving teeth of a first jaw of a patient, the second shell dental appliance 102 including a second shell body including a plurality of cavities for receiving teeth of the first jaw of the patient, the geometry of the cavities being such that it is capable of repositioning the teeth of the patient from a first configuration to a second configuration, wherein lingual sides of anterior teeth areas of the first shell body are provided with an bite adjustment plate 103 capable of adjusting the relationship between the upper and lower jaws of the patient, the bite adjustment plate 103 having a geometry for adjusting the anterior teeth of the anterior teeth area in a vertical orientation to a target bite position, the bite adjustment plate 103 being in contact with the anterior teeth area of the counter jaw and guiding the counter jaw to move open back bite, the first shell dental appliance 101 and the second shell dental appliance 102 being worn on the same jaw of the patient, the first shell dental appliance being worn on the same jaw of the patient during the same dental procedure, the first shell dental appliance 101 being worn on the first jaw 102 for a non-bite period of time.

Currently, orthodontic treatment using shell dental appliances (i.e., shell dental appliances) often divides the treatment into successive N orthodontic steps for repositioning teeth from an initial layout of the orthodontic step to a target layout of the orthodontic step, basically, an initial layout of the mth orthodontic step, i.e., a target layout of the mth-1 orthodontic step, and a target layout of the mth orthodontic step, i.e., an initial layout of the mth+1 orthodontic step. In this embodiment, each appliance corresponds to a shell dental appliance set comprising the first shell dental appliance 101 and the second shell dental appliance 102 described above to reposition teeth from the initial layout of the appliance to the target layout of the appliance by the shell dental appliance set.

The mandibular posture position (mpp) refers to the position in which the lower jaw is in a very relaxed position when the human body remains naturally relaxed, and generally, when the patient is in the mandibular posture position, the lips are naturally closed and breathed through the nose, and thus the mandibular posture position is also referred to as a rest jaw position. When sleeping, the human body is in a natural relaxation state, and the lower jaw is in a lower jaw posture position at the moment; when the head is in the upright position, the mouth is not chewing, swallowing or speaking, the lower jaw is in a rest state, the upper jaw and the lower jaw dental arch are naturally separated, a wedge-shaped gap (called a rest (occlusal) gap) is kept from back to front, and the lower jaw is also in a lower jaw posture position. In general, when a person is awake in an upright state, the person wearing the first shell-shaped dental instrument 101 with the bite adjustment plate can self-bite into the corresponding position, and when the person sleeps at night, the lower jaw thereof is in a mandibular posture position in which the patient is unconscious, if the person wearing the first shell-shaped dental instrument 101 with the bite adjustment plate cannot self-bite into the corresponding position of the bite adjustment plate, the person cannot play a role corresponding to the bite adjustment plate, and the person may feel bad in the bite position due to the presence of the bite adjustment plate, causing temporomandibular muscle group discomfort, and the person has a foreign body sensation due to the presence of the bite adjustment plate, thereby affecting the sleep of the person. Therefore, in order to avoid the problem that the patient has a foreign body sensation to affect sleep due to the fact that the presence of the bite adjustment plate does not play a corresponding role, in this embodiment, for each correction step, the whole correction period of the correction step is divided into a bite adjustment period and a non-bite adjustment period, wherein the bite adjustment period refers to a period when the patient is in a awake state, such as the daytime, and the patient is in a conscious state, whereas the non-bite adjustment period refers to a period when the patient is in a unconscious state, such as the night sleep period, the first shell dental instrument 101 with the bite adjustment plate is used for wearing the teeth of the first jaw of the patient in the bite adjustment period, and the second shell dental instrument 102 without the bite adjustment plate is used for wearing the teeth of the first jaw of the patient in the non-bite adjustment period, so that the problem that the mandibular position of the patient is disordered by using the first shell dental instrument with the bite adjustment plate in the non-bite adjustment period to cause the mandibular position of the patient, the discomfort of the temporomandibular muscle group of the patient can be avoided, and the foreign body sensation of the patient in the non-bite adjustment period can be reduced, the quality of the patient can be improved, and the sleep quality of the patient can be improved. In this embodiment, the first palate is the palate of the patient.

In this embodiment, the first shell-like body and the second shell-like body are configured to have a plurality of cavities for accommodating a plurality of teeth, and are divided into an anterior tooth area and a posterior tooth area. Wherein, the "posterior tooth area" is defined according to the classification of teeth including premolars and molars, which are shown as 4-8 teeth in FDI notation and 1-3 teeth in FDI notation, published by Beijing university medical Press, 2 nd edition, pages 36-38. The anterior teeth region of the first shell and the second shell may be configured to receive the central incisors, lateral incisors, and cuspids of the maxillary teeth, and the posterior teeth region of the first shell and the second shell may be configured to receive the first anterior molars, the second anterior molars, the first molars, the second molars, and the third molars of the maxillary teeth.

The occlusion adjusting plate 103 is disposed at the lingual side of the first shell-shaped body of the first shell-shaped dental instrument 101, so that when in occlusion, the occlusion adjusting plate 103 contacts with the anterior teeth area of the mandible and guides the mandible to move to open the occlusion of the posterior teeth, and the occlusion adjusting plate has a geometry that the teeth in the anterior teeth area are vertically adjusted upwards to a target occlusion position, i.e. a position where the vertical distance between the upper teeth and the lower teeth is not more than 1/3 of the labial surface of the incisors of the mandible. In this embodiment, the bite adjustment plate 103 is an integral structure connected to the lingual side of the anterior teeth area of the first shell body, and the bite adjustment plate 103 is disposed at least on the lingual side of the anterior teeth area of the first shell body, and can completely cover or cover a portion of the anterior teeth area of the first shell body. In a preferred embodiment, the bite adjustment plate 103 is integrally formed with the first shell body, for example, the bite adjustment plate 103 and the first shell body may be integrally molded, specifically, the bite adjustment plate 103 is formed by extending the lingual side of the anterior teeth of the first shell body of the first shell dental instrument 101 away from the teeth of the anterior teeth of the upper jaw, wherein the bite adjustment plate 103 may extend from the lingual side of the anterior teeth of the first shell body adjacent to the gingival margin or the lingual side of the anterior teeth of the first shell body adjacent to the lingual fossa to the teeth of the anterior teeth of the upper jaw, for example, the bite adjusting plate 103 may extend from the lingual gingival margin of the anterior dental area of the first shell-shaped body or a position adjacent to the lingual gingival margin of the anterior dental area of the first shell-shaped body to a position containing 1/4-1/2 of the length of the dental crown of the anterior dental area as an extension starting point, and to a side far from the teeth of the anterior dental area of the upper jaw, where the specific extension starting point is generally determined according to the bite opening requirement, for example, as the different correction steps are performed, the distance between the junction of the bite adjusting plate 103 and the first shell-shaped body and the gingival margin may gradually decrease along with the correction process; in another preferred embodiment, the bite adjusting plate 103 is in a split structure with the first shell body, that is, the bite adjusting plate 103 is split and connected with the first shell body, specifically, one end of the bite adjusting plate 103 is connected with the middle incisor area 1011, the side incisor area 1012 and the cuspid area 1013 of the upper jaw of the first shell body, as shown in fig. 2, the connection is from the gingival margin of the middle incisor area 1011, the side incisor area 1012 and the cuspid area 1013 of the first shell body to the position of accommodating 1/4-1/2 of the length of the corresponding dental crown as the connection starting point, and the other end extends to the side far from the teeth of the upper jaw anterior tooth area, likewise, the specific connection starting point generally needs to be determined according to the requirement of bite opening, for example, as the different steps are performed, the distance between the connection position of the bite adjusting plate 103 and the first shell body from the gingival margin gradually decreases along with the correction process, specifically, the connection mode of the bite adjusting plate 103 and the first shell body may be any one of bonding, welding or riveting. Preferably, the other end of the bite adjustment plate 103 is connected to the distal ends of the cusp regions 1013 remote from the central incisor region 1011 so as to entirely cover the anterior tooth region of the first shell-like body, although the bite adjustment plate 103 may cover only a portion of the anterior tooth region of the first shell-like body, such as the bite adjustment plate 103 being connected to only the lingual side of anterior tooth regions 1-1 or to only the lingual side of anterior tooth regions 2-2.

In some embodiments, the bite adjustment plate 103 may be a plane or a curved surface, and when the bite adjustment plate 103 is used, an angle formed by a tangent plane at each point on an action surface (an abutting surface against the mandibular teeth) of the bite adjustment plate 103 and a jaw plane of the patient is in a range of 0 ° +.ltoreq.α.ltoreq.15°, wherein the jaw plane is not a real plane but a virtual plane formed from a mesial abutment point of a bilateral upper middle incisor of the patient to a mesial tip of a bilateral first molar.

In some embodiments, the rigidity of the bite adjustment plate 103 is greater than the rigidity of the first shell-shaped body, so that when a patient bites, the teeth of the lower jaw are in contact with the bite adjustment plate 103, and the rigidity of the bite adjustment plate 103 is increased, so that deformation of the bite adjustment plate 103 during biting can be prevented, and the correction effect is affected; in other embodiments, to enhance the comfort of wearing the first shell-shaped dental instrument 101 having the bite adjustment plate 103, the elastic modulus of the portion of the bite adjustment plate 103 adjacent to the lingual side of the patient is different from the elastic modulus of the portion of the bite adjustment plate 103 adjacent to the palate side of the patient, specifically, when the elastic modulus of the portion of the bite adjustment plate 103 adjacent to the lingual side of the patient is smaller than the elastic modulus of the portion adjacent to the palate side of the patient, the mandible of the patient is softer at the contact with the portion of the palate side, and the contact has a cushioning effect, so that the deformation amount of the bite adjustment plate 103 is smaller without affecting the correction effect; when the elastic modulus of the portion of the bite adjustment plate 103 near the lingual side of the patient is greater than the elastic modulus of the portion near the palate side of the patient, the portion contacting the palate side of the patient is softer, the wearing is more comfortable, and the deformation amount of the portion contacting the mandibular teeth is smaller. In other embodiments, the bite adjustment plate 103 and opposing jaw interface may also be provided with a cushioning layer having a stiffness less than the stiffness of the bite adjustment plate 103 to cushion contact of the bite adjustment plate 103 with the opposing jaw teeth.

In some embodiments, in the same orthodontic step, the first shell body of the first shell dental instrument 101 and the second shell body of the second shell dental instrument 102 have the same orthodontic force and/or moment to perform the same function, specifically, the first shell body of the first shell dental instrument 101 and the second shell body of the second shell dental instrument 102 are shells made of the same material and have the same shape, so that the first shell body and the second shell body can have the same orthodontic force and/or moment to perform the same function, wherein the same shape refers to that not only the cavities of the first shell body and the corresponding cavities of the second shell body are the same in shape and have the same thickness, but also the first shell body and the second shell body are the same in material and the same thickness as shown in fig. 3, so that the orthodontic forces applied to the patient's teeth are substantially the same when such first and second shell bodies are worn on the patient's teeth, i.e., the second shell dental appliance 102 lacks only lingual adjustment panels as compared to the first shell dental appliance 101, wherein the material of the first and second shell bodies may be a polymeric material which may be one or a combination of several of PETG (polyester), PC (polycarbonate), TPU (polyurethane) or the like, or may be one or more of an amorphous thermoplastic polymer, a semi-crystalline thermoplastic polymer and a transparent thermoplastic polymer selected from the group consisting of polycarbonate, thermoplastic polyurethane, acrylic, polysulfone, polypropylene/ethylene copolymer, cyclic olefin polymer/copolymer, poly-4-methyl-1-pentene or polyester/polycarbonate copolymer, styrenic polymer material, polyamide, polymethylpentene, polyetheretherketone, and combinations thereof.

In this embodiment, since the first shell-shaped body and the second shell-shaped body are shells made of the same material and have the same shape, the shell-shaped bodies in different periods need to be designed once according to the correction targets in the same correction step, and on the basis that the design complexity of the dental mouthpiece is not increased, the problem that the first shell-shaped dental instrument with the occlusion adjusting plate can lead to disorder of the occlusion position of the lower jaw of the patient in the non-occlusion adjusting period and cause discomfort of the temporomandibular muscle group of the patient is solved, and meanwhile, the comfort level of the patient in the correction process in the non-occlusion adjusting period is improved.

Embodiment two:

in this embodiment, as in embodiment one, the shell dental instrument kit also includes: the dental appliance comprises a first shell-shaped dental appliance with a first shell body and a second shell-shaped dental appliance with a second shell body, wherein the first shell-shaped dental appliance and the second shell-shaped dental appliance respectively comprise a plurality of cavities for accommodating teeth of a patient, an occlusion adjusting plate capable of adjusting the relationship between upper jaw and lower jaw is arranged on the lingual side of an anterior dental zone of the first shell-shaped dental appliance, the occlusion adjusting plate is provided with a geometric structure for vertically and upwards adjusting the position of teeth of the anterior dental zone of the lower jaw relative to the upper jaw to a target occlusion position, and the first shell-shaped dental appliance and the second shell-shaped dental appliance are respectively worn on the same dental jaw in an occlusion adjusting period and a non-occlusion adjusting period of the same correction step.

The first shell body of the first shell dental appliance and the second shell body of the second shell dental appliance can perform different functions to have corresponding orthodontic forces and/or moments, for example, the first shell body of the first shell dental appliance is designed to generate a first tooth movement amount for causing tooth movement, and the second shell body of the second shell dental appliance is designed to at least keep the first tooth movement amount so that the position of the tooth does not rebound, and when the first shell body with the bite adjustment plate is worn on the tooth of a patient during the bite adjustment period of the same orthodontic step, the mandibular anterior tooth is abutted against the active surface of the bite adjustment plate, the mandibular anterior tooth is depressed and the anterior tooth bite is opened, and simultaneously the first shell body applies a larger force to the tooth of the patient to cause tooth movement; when the second shell body is worn on the teeth of the patient in the non-occlusion adjustment period, the correction force applied to the teeth of the patient by the second shell body is smaller, and the action mainly used for resisting the rebound of the teeth plays a role in keeping the tooth position or causes a relatively smaller second tooth movement amount, so that the patient wearing the second shell dental appliance in the non-occlusion adjustment period is more comfortable, and in the embodiment, the second shell body is ensured to be worn on the teeth of the patient, at least the first tooth movement amount generated by correction of the first shell body in the occlusion adjustment period is kept, and the rebound phenomenon in the non-occlusion adjustment period is avoided. That is, in this embodiment, the first shell-shaped body capable of applying a larger correction force is used in the bite adjustment period to generate a first tooth movement amount for the teeth, and the second shell-shaped body capable of applying a smaller correction force is used in the non-bite adjustment period to keep the first tooth movement amount so that the positions of the teeth do not rebound, so that the correction process in the non-bite adjustment period can be more comfortable, the correction effect can be better, the comfort level of the correction process in the non-bite adjustment period is improved, and the sleep quality of the patient is further improved.

In some embodiments, the first shell and the second shell may be shells of different materials and may be identical in shape, i.e., the first shell and the second shell may have different elastic moduli, e.g., the first shell may be designed to have a greater elastic modulus than the second shell, to create a greater orthodontic force on the teeth when the first shell is worn on the patient's teeth, to create a first tooth movement, and to create a smaller elastic modulus to be used for the purposes of maintaining the first tooth movement of the teeth, preventing tooth bounce when the second shell is worn on the patient's teeth. In general, the different materials have different elastic moduli, so that the first shell body and the second shell body have different elastic moduli, in a preferred embodiment, the first shell body and the second shell body may be made of different polymer materials, specifically, the polymer materials from which the first shell body and the second shell body are made may be one or a combination of several materials such as PETG (polyester), PC (polycarbonate), TPU (polyurethane), etc., and may also be one or more of amorphous thermoplastic polymers, semi-crystalline thermoplastic polymers and transparent thermoplastic polymers, and the thermoplastic polymers are selected from the group consisting of polycarbonate, thermoplastic polyurethane, acrylic acid, polysulfone, polypropylene/ethylene copolymer, cyclic olefin polymer/copolymer, poly-4-methyl-1-pentene or polyester/polycarbonate copolymer, styrene polymer materials, polyamide, polymethylpentene, polyetheretherketone, and combinations thereof, and in this embodiment, materials with higher elastic moduli are selected to make the first shell body, i.e., the thermoplastic polymers used to make the first shell body have a higher elastic modulus than the second shell body. Of course, the material with the larger elastic modulus may be selected to prepare the second shell-like body according to the requirement, that is, the material used to prepare the second shell-like body has the larger elastic modulus than the material used to prepare the first shell-like body.

In other embodiments, the first shell and the second shell may be shells of the same polymeric material but of different shapes with corresponding orthodontic forces so that the first shell and the second shell may perform different functions. Generally, the thickness of the same material will have an effect on the magnitude of the correction force. In other embodiments, the first shell and the second shell may be made of the same material but have different thicknesses with corresponding orthodontic forces so that the first shell and the second shell may perform different functions. As shown in fig. 4, the thickness of the first shell body is relatively thicker than that of the second shell body, for example, the thickness of the first shell body is designed to be 0.6 mm-2 mm, and the thickness of the second shell body is designed to be 0.1 mm-1.5 mm. Likewise, the thickness of the second shell-like body may be larger than that of the first shell-like body according to the need, and details thereof will not be repeated here.

In still other embodiments, the first shell and the second shell may be shells of different materials and different shapes, e.g., the first shell material has a greater modulus of elasticity than the second shell material and the first shell has a greater thickness than the second shell so that the first shell provides a first amount of tooth movement when worn and the second shell provides a second amount of tooth movement when worn that maintains at least the first amount of tooth movement provided by the first shell and prevents tooth bouncing. Correspondingly, the elastic modulus of the second shell-shaped body material can be designed to be larger than that of the first shell-shaped body material according to the requirement, and the thickness of the second shell-shaped body is larger than that of the first shell-shaped body, which is not repeated here.

Embodiment III:

the structure of the shell-shaped dental instrument set provided in this embodiment is shown in fig. 5, and in this embodiment, a shell-shaped dental instrument set at least includes: the dental appliance comprises a first shell dental appliance 501 and a second shell dental appliance 502, wherein the first shell dental appliance 501 comprises a first shell body which comprises a plurality of cavities for accommodating teeth of a first jaw of a patient, the second shell dental appliance 502 comprises a second shell body which comprises a plurality of cavities for accommodating teeth of the first jaw of the patient, the geometry of the cavities is such that the teeth of the patient can be relocated from a first layout to a second layout, the lingual side of each tooth of an anterior tooth area of the first shell body is respectively provided with an occlusion adjusting plate 503 which can adjust the upper and lower jaw relation of the patient, the plurality of occlusion adjusting plates 503 have a geometry for vertically adjusting the corresponding teeth of the anterior tooth area to a target occlusion position relative to the position of the opposite jaw, the first shell dental appliance 501 and the second shell dental appliance 502 are on the same jaw of the patient, and in the same step, the first shell dental appliance 501 is used for being worn on the first jaw of the patient in an occlusion adjusting period, and the second shell dental appliance 502 is worn on the same jaw of the patient in a non-vertical state.

In this embodiment, the lingual side of each tooth in the anterior teeth area of the first shell-shaped body is respectively provided with an occlusion adjusting plate 503, that is, the anterior teeth area forms 6 occlusion adjusting plates 503, which are respectively located on lingual sides of 6 anterior teeth in the anterior teeth area, where the size of each occlusion adjusting plate 503 should be reduced as much as possible on the premise of meeting the requirement, for example, the length and the width of each occlusion adjusting plate should be such that the cut ends of the teeth of the jaw can abut against the active surface of the occlusion adjusting plate 503 during occlusion, and the height of each occlusion adjusting plate should be such that the strength of the flat guide plate can be ensured.

In a preferred embodiment, similar to the first embodiment, each of the bite adjusting plates 503 and the first shell body may be integrally formed, but of course, each of the bite adjusting plates 503 and the first shell body may also be in a split structure and connected by a fixed connection or a detachable connection, that is, the relative positions between the bite adjusting plates and the teeth of the front teeth area where the bite adjusting plates are disposed are consistent, and since the connection positions of each of the bite adjusting plates 503 and the first shell are the same as the first embodiment, the details thereof will not be repeated.

Embodiment four:

the inventors of the present application found that the position of the teeth provided with the bite adjustment plate and the opposite teeth may vary with the correction during the correction, and that the degree of occlusion of the open front teeth may be different, i.e. may not necessarily correspond to the target degree of occlusion of the open front teeth, when the different first shell-shaped dental appliances are worn with the movement of the teeth provided with the bite adjustment plate and/or the opposite teeth. Thus, in this embodiment, the bite adjustment plates are positioned at different locations on the lingual side of the respective teeth in different corrective steps, which are positioned such that when the first shell-like body with the bite adjustment plates is worn, the anterior teeth open substantially matches the target, that is, each bite adjustment plate changes its position on the respective teeth at different corrective steps based on the depression or extension of the teeth (or of the corresponding teeth on the jaw) and/or the movement of the teeth (or of the corresponding teeth on the jaw) (e.g., the movement in the mesial-distal direction between adjacent teeth in the same jaw). For example, if the tooth is depressed in a certain orthodontic step, the bite adjustment plate for that tooth is moved toward the incisor edge surface of the tooth in a later orthodontic step so that the corresponding tooth on the counter jaw can continue to interfere with the bite adjustment plate to function to continue to open the anterior bite.

According to the embodiment, the occlusion adjusting plates are arranged at different positions of the corresponding teeth in different correction steps, so that the relative positions of the occlusion adjusting plates and the corresponding teeth on the first shell-shaped body are changed along with the positions of the corresponding teeth and the corresponding teeth, the occlusion degree of the open front teeth is basically consistent with a target when the first shell-shaped dental instrument is worn in an occlusion adjustment period in different correction steps, and the correction effect of the occlusion adjustment period is improved.

Fifth embodiment:

the embodiment provides a dental appliance system, which comprises N shell dental appliance sets, at least M of the N shell dental appliance sets are shell dental appliance sets according to any one of the first to third embodiments, wherein m+.n, M, N are positive integers, the M shell dental appliance sets are sets in successive appliance steps, namely, N shell dental appliance sets, part or all of the N shell dental appliance sets are shell dental appliance sets according to the first to third embodiments, the N shell dental appliance sets are used for successively repositioning the teeth of a patient from an initial layout to a target layout, the N shell dental appliance sets correspond to the N appliance sets, in each step of the shell dental appliance sets, in an occlusion adjustment period, a first shell dental appliance with an occlusion adjusting plate in the shell dental appliance set corresponding to the step is worn on the teeth of a patient, so that the teeth of a mandibular anterior dental zone can be vertically adjusted to the current position of the upper jaw in the occlusion adjustment period, and the shell dental appliance set is not worn on the patient in the occlusion adjustment period, the occlusion plate is not worn on the patient, and the patient is prevented from being worn in the occlusion adjustment period.

In some embodiments, for N shell dental instrument sets, the lingual side of each tooth in the anterior dental region of the first shell dental instrument in each shell dental instrument set is provided with an occlusion adjusting plate, and each occlusion adjusting plate is disposed at a different position on the lingual side of the corresponding tooth in different correction steps, and the position on the lingual side of the corresponding tooth is such that when the first shell body with the occlusion adjusting plate is worn, the anterior tooth opening degree substantially coincides with the target, and by disposing the occlusion adjusting plates on the lingual side of each tooth in the anterior dental region of the first shell body respectively, and disposing each occlusion adjusting plate at a different position on the corresponding tooth in different correction steps, the relative position of each occlusion adjusting plate on the first shell body with respect to the corresponding tooth varies with the position of the corresponding tooth and the corresponding tooth with respect to the jaw tooth, so that the degree of opening the anterior tooth substantially coincides with the target when the first shell dental instrument is worn in the occlusion adjustment period in different steps, the correction effect of the occlusion adjustment period is improved.

It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (20)

1. The utility model provides a shell-like dental instrument cover group, its characterized in that includes the first shell-like dental instrument that has first shell-like body and the second shell-like dental instrument that has the second shell-like body, first shell-like body and second shell-like body include a plurality of cavitys that accomodate patient's tooth respectively, the anterior tooth district lingual side of first shell-like body is equipped with the interlock regulating plate that can adjust the upper and lower jaw relation, the interlock regulating plate has the geometry that adjusts anterior tooth district tooth in vertical upwards to target interlock position, first shell-like dental instrument and second shell-like dental instrument are used for same dental jaw respectively and correct the wearing of interlock adjustment period and non-interlock adjustment period in same correction step.

2. The shell dental instrument kit of claim 1, wherein the bite adjustment plate is a unitary structure connecting lingual sides of the anterior tooth area of the first shell body.

3. The shell dental instrument kit of claim 2, wherein the bite adjustment plate is disposed at least lingual side of the anterior teeth area portion of the first shell body.

4. The shell dental instrument kit of claim 1, wherein lingual sides of each tooth of the anterior tooth area of said first shell body are each provided with said bite adjustment plate.

5. The shell dental instrument kit of any of claims 1-4, wherein the bite adjustment plate is integrally formed from the first shell body on the lingual side of the anterior tooth area of the first shell body.

6. The shell dental instrument kit of claim 5, wherein the first shell body and the second shell body are shells of the same material and are identical in shape to have the same orthodontic force and/or moment to perform the same function.

7. The shell dental instrument kit of claim 5, wherein the first shell body and the second shell body are shells of different materials and are identical in shape to have different orthodontic forces and/or moments to perform different functions.

8. The shell dental instrument kit of claim 7, wherein the first shell body material has a modulus of elasticity that is greater than a modulus of elasticity of the second shell body material such that the first shell body, when worn, produces a first amount of tooth movement and the second shell body, when worn, retains at least the first amount of tooth movement produced by the first shell body.

9. The shell dental instrument kit of claim 5, wherein the first shell body and the second shell body are shells of the same material and are different in shape to have different orthodontic forces and/or moments to perform different functions.

10. The shell dental instrument set of claim 9, wherein a thickness of the first shell body is greater than a thickness of the second shell body such that the first shell body, when worn, creates a first amount of tooth movement and the second shell body, when worn, maintains at least the first amount of tooth movement created by the first shell body.

11. The shell dental instrument kit of claim 5, wherein the first shell body and the second shell body are shells of different polymeric materials and are different shapes to perform different functions with different orthodontic forces and/or moments.

12. The shell dental instrument set of claim 11, wherein the first shell body material has a modulus of elasticity greater than a modulus of elasticity of the second shell body material, and wherein the first shell body has a thickness greater than a thickness of the first shell body such that the first shell body produces a first amount of tooth movement when worn and wherein the second shell body retains at least the first amount of tooth movement produced by the first shell body.

13. The shell dental instrument set of any of claims 1-4, wherein the bite adjustment plate is of a split construction with the first shell body, the first shell body being at least partially connected to the lingual side of the anterior tooth area of the first shell body.

14. The shell dental instrument kit of claim 13, wherein the lingual connection of the bite adjustment plate to the lingual side of the anterior tooth area of the first shell body comprises any one of an adhesive, a weld, and a rivet.

15. The shell dental instrument set of any of claims 1-4, wherein the bite adjustment plate and counter jaw contact surface is provided with a cushioning layer to cushion contact of the bite adjustment plate with the counter jaw teeth.

16. The shell dental instrument kit of claim 15, wherein the cushioning layer has a stiffness less than a stiffness of the bite adjustment plate.

17. The shell dental instrument kit of any one of claims 1-4, wherein the bite adjustment plate is positioned at different locations on the lingual side of the anterior dental zone in different orthodontic procedures, the location on the lingual side of the anterior dental zone being such that when the first shell body with the bite adjustment plate is worn, the anterior teeth are open to substantially conform to a target.

18. A dental appliance comprising N shell dental instrument sets, wherein at least M of the N shell dental instrument sets are shell dental instrument sets of any one of claims 1-11, wherein m+.n, M, N is a positive integer.

19. The dental appliance system of claim 18, wherein the M shell dental instrument kits are kits in successive appliance steps.

20. The dental appliance system of claim 19, wherein the relative positions of the bite adjustment plate of the first shell dental appliance of the set of M shell dental appliances and the corresponding tooth vary with the position of the corresponding tooth and the opposing jaw tooth such that each first shell dental appliance opens the anterior bite to a degree substantially consistent with the target.