CN211094856U

CN211094856U - Shell-shaped dental instrument, shell-shaped dental instrument set and correcting system

Info

Publication number: CN211094856U
Application number: CN201921871553.9U
Authority: CN
Inventors: 吴刚; 王星星; 王梦含; 姚峻峰
Original assignee: Shanghai Smartee Denti Technology Co Ltd
Current assignee: Shanghai Zhengya Dental Technology Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-28
Anticipated expiration: 2029-11-01

Abstract

The utility model provides a shell-shaped dental appliance, which comprises a shell-shaped body, wherein the shell-shaped body is provided with a plurality of cavities for accommodating teeth, any position of the buccal side or the lingual side of the posterior tooth area of the shell-shaped body is provided with a blocking part for preventing the buccal inclination or the lingual inclination of the corresponding teeth, and the blocking part at least partially covers the buccal side or the lingual side of the corresponding posterior tooth area on the shell-shaped body; the shell-shaped dental appliance can prevent the cheek inclination or tongue inclination of the corresponding tooth when the posterior teeth move far away, and improve the correction effect. The shell-shaped dental instrument set comprises a first shell-shaped body and a second shell-shaped body, wherein the first shell-shaped body is the shell-shaped dental instrument, the second shell-shaped body is provided with a plurality of second cavities for accommodating teeth, and the second shell-shaped dental instrument is matched with the first shell-shaped dental instrument for use; and a shell-shaped dental appliance system, comprising a plurality of shell-shaped dental appliance sets, which are applied to different appliance stages, wherein at least one dental appliance set is the shell-shaped dental appliance set as described in any one of the above items.

Description

Shell-shaped dental instrument, shell-shaped dental instrument set and correcting system

Technical Field

The utility model belongs to the field of medical equipment, in particular to shellliform dental instrument, shellliform dental instrument suit and rescue system.

Background

In the process of teeth correction, when the back teeth move far, the phenomenon that the back teeth open the jaw often occurs due to cheek tilting when the back teeth of the upper jaw do not move far in place by wearing the invisible teeth corrector. The invisible tooth appliance is an elastic shell-shaped appliance, a patient usually wears an anterior tooth area on teeth before wearing a posterior tooth area, the posterior tooth area deforms due to the fact that the anterior tooth area is in place, the deformation direction is opposite to the tooth wearing direction, namely the direction of the outer side of the teeth, and the posterior teeth can deviate towards the buccal side to cause cheek inclination because the stress of the outer side is released more easily.

The abnormal tongue position generally refers to abnormal tongue position in a resting state. Normally the tip of the tongue is on the lingual side of the lower incisor or palatal side of the upper incisor and in contact; the abnormal condition is the retrogradation: the tongue curls, the tongue body is positioned at the back and has no contact with the anterior teeth. Primary abnormalities in tongue position are often caused by poor habits, such as finger sucking: since the tongue body is lowered when sucking the finger, the buccinator is contracted, the pressure balance of the upper teeth is changed, and the pressure on the lingual side is reduced to cause lingual movement of the posterior maxillary teeth, anterior protrusion and resulting in stenosis of the upper arch. Long-term tongue-erupting habit: the bad habit of spitting tongue in the tooth replacing period can generate abnormal continuous pressure on the upper and lower anterior teeth, thereby causing jaw opening or secondary anterior teeth to open the jaw and the mandible to be protruded forward. Generally speaking, the tongue postural abnormality can be a cause of malocclusion and an adaptation to malocclusion, and the control of the position of the tongue in the resting state is considered for the stabilization after orthodontics.

Therefore, it is important to develop a dental appliance capable of preventing the tooth from being inclined on the cheek or the tongue during the tooth correction process.

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the utility model is to provide a shell-shaped dental appliance, carry out corresponding correction to tooth cheek slope or tongue slope, improve and correct the effect.

The utility model provides a technical problem provide a shelly dental appliance suit, have the phenomenon of tongue slope and carry out corresponding correction at tooth cheek slope or tooth, increase the success rate of correcting this type of case.

The utility model provides a technical problem provide a system is rescued to shelly dentistry, can prevent that the tooth cheek from inclining or the tongue from inclining, increase the success rate of rescuring this type of case.

The technical scheme of the utility model as follows:

a shell-shaped dental device comprises a shell-shaped body, wherein a plurality of cavities for accommodating teeth are arranged on the shell-shaped body, a blocking part for preventing buccal inclination or lingual inclination of corresponding teeth is arranged on the buccal side or the lingual side of the posterior tooth area of the shell-shaped body, and the blocking part at least partially covers the buccal side or the lingual side of the corresponding posterior tooth area on the shell-shaped body.

Preferably, the blocking part is a convex part which is convex towards the buccinator muscle or the lingual muscle on the buccal side or the lingual side of the shell-shaped body respectively, the acting force generated when the convex part is contacted with the buccinator muscle or the lingual muscle is opposite to the acting force of the buccal inclination or the lingual inclination of the corresponding tooth, and the acting force generated when the convex part is contacted with the buccinator muscle or the lingual muscle is enough to prevent the buccal inclination or the lingual inclination of the corresponding tooth.

Preferably, the height of the protrusion of the convex part protruding towards the buccinator muscle or the lingual muscle is 2-8 mm.

Preferably, the distance from the convex part to the gingival margin along the long axis direction of the tooth body is 1-3mm, and the distance from the convex part to the cusp is 0-3 mm.

Preferably, the blocking portion is a buccal or lingual reinforcement of the posterior dental area of the shell-like dental device, which reinforcement opposes the action of the buccal or lingual inclination of the respective tooth, wherein the reinforcement is a thickening, a rib or a reinforcement.

Preferably, the thickened part is of a single-layer structure or a multi-layer structure, wherein in the case of the single-layer structure, the layer thickness is 1-5 mm; the total thickness is 1-5mm in case of multi-layer structure.

Preferably, the barrier portion covers a width of the posterior tooth area on a buccal side or a lingual side of the shell-shaped body in a dental arch direction to a width of 1 to 5 teeth in number.

Preferably, a filling part is arranged in the convex part.

Preferably, the blocking part and the shell-shaped body are of an integral structure or a split structure.

Preferably, when the blocking part and the shell-shaped body are of a split structure, the blocking part is mounted on the shell-shaped body.

The utility model also provides a shelly dental instrument suit, including first shelly body and second shelly body, first shelly body is as above arbitrary shelly dental instrument, the second shelly body sets up a plurality of second cavitys that hold the tooth, the second shelly dental instrument with the cooperation of first shelly dental instrument is used.

Preferably, a blocking part for preventing cheek tilting of the corresponding tooth is arranged at any position of the cheek side of the posterior tooth area of the second shell-shaped body, and the blocking part at least partially covers the cheek side of the corresponding posterior tooth area.

The utility model also provides a system is rescued to shelly dentistry, including a plurality of shelly dentistry instrument suit, different shelly dentistry instrument suits are applied to the difference and correct the stage, and at least one dentistry is rescued the suit and is as above arbitrary shelly dentistry instrument suit.

Preferably, as the correction process is performed, the acting force of the blocking part and the teeth is adjusted according to the correction requirement.

Preferably, when the blocking portion is a convex portion, the acting force generated when the blocking portion acts in contact with the buccinator muscle or the lingual muscle is kept constant, gradually increased or gradually decreased along with the correction process.

Preferably, the shape of the protrusion is configured to remain the same, increase gradually, or decrease gradually as the correction process progresses.

Preferably, when the blocking portion is the reinforcing portion, the acting force of the blocking portion on the tooth is kept constant or gradually reduced along with the correction process.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up the buccal side or the lingual arbitrary position department in tooth district behind the shell-shaped body and prevent the buccal side of corresponding tooth and incline or the lingual of tongue, tooth is inclined or the lingual of tongue when preventing the back tooth from far moving through the barrier, the barrier covers the buccal side or the lingual side in corresponding back tooth district on the shell-shaped body at least partially, according to the position of the tooth that takes place to incline or the lingual, set up the barrier and make it can cover or partially cover this position, in order to act on this position and prevent that the tooth from taking place to incline; wherein, when the blocking portion is provided as a convex portion, the acting force generated by the contact interaction of the convex portion and the buccinator muscle or the lingual muscle is opposite to the acting force of the buccal inclination or the lingual inclination of the corresponding tooth, thereby preventing the buccal inclination or the lingual inclination of the corresponding tooth; or when the blocking portion is provided as a reinforcing portion, the force generated by the action of the reinforcing portion on the corresponding buccal or lingual inclination tooth is opposite to the buccal or lingual inclination force of the tooth, so as to prevent the corresponding buccal or lingual inclination of the tooth. The utility model discloses a shell form dental appliance can effectively prevent that the tooth cheek from inclining or tooth itself has the phenomenon of tongue slope and carrying out corresponding correction when the back tooth moves far away, improves and rescues the effect. In addition, the optional position department of lingual side in tooth district behind the shell-shaped body sets up the part of stopping that prevents corresponding tooth tongue and inclines, the part of stopping at least partially covers the lingual side in corresponding tooth district behind on the shell-shaped body, on the one hand prevents through the part of stopping that the back tooth is far away when moving tooth tongue inclines, not only can adjust the tongue position, still has certain bow effect that expands. The same correction effect is achieved for the treatment of patients with tooth cheek inclination or tongue inclination at the initial diagnosis.

Drawings

Fig. 1 is a schematic view of a shell-shaped dental instrument according to embodiment 1 of the present invention;

FIG. 2 is another schematic view of the shell-like dental instrument of FIG. 1;

FIG. 3 is another schematic view of the shell-like dental instrument of FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic view of a shell-shaped dental instrument according to embodiment 2 of the present invention;

fig. 6 is a schematic view of embodiment 2 of the present invention in another direction;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

fig. 8 is a schematic view of a shell-shaped dental instrument according to embodiment 3 of the present invention;

FIG. 9 is a cross-sectional view taken along line C-C of FIG. 8;

figure 10 is a schematic view of another shell-like dental instrument according to embodiment 3 of the present invention;

FIG. 11 is a cross-sectional view taken along line D-D of FIG. 10;

FIG. 12A is a schematic view of a set of shell-shaped dental instruments according to example 5;

FIG. 12B is a schematic view of another set of shell-shaped dental instruments according to example 5;

fig. 12C is a schematic view of another set of shell-shaped dental instruments according to example 5.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are only for illustrating the present invention, and are not intended to limit the scope of the present invention. In practical applications, the improvement and adjustment made by those skilled in the art according to the present invention still belong to the protection scope of the present invention.

For better illustration of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings.

Example 1

Referring to fig. 1, a shell-shaped dental device 1 comprises a shell-shaped body 101, wherein the shell-shaped body 101 is provided with a plurality of cavities for accommodating teeth, a barrier part 2 for preventing cheek tilting of corresponding teeth is arranged at the buccal side of the posterior tooth area of the shell-shaped body 101, and the barrier part 2 at least partially covers the buccal side of the corresponding posterior tooth area on the shell-shaped body 101.

When a patient wears the shell-shaped dental appliance, the patient usually wears the anterior dental region on the teeth first and then wears the posterior dental region, at the moment, the posterior dental region deforms due to the in-place of the anterior dental region, and the deformation direction is outward deformation, because external stress is easier to release, at the moment, the posterior teeth can shift towards the buccal side, and the cheek is inclined. In the embodiment, the blocking part 2 is arranged at any position of the buccal side of the posterior dental area of the shell-shaped body 101 for preventing the buccal inclination of the teeth, the blocking part 2 is arranged to at least partially cover the buccal side of the corresponding posterior dental area on the shell-shaped body 101, and the action part of the blocking part is arranged to at least partially cover the buccal side of the corresponding posterior dental area on the shell-shaped body 101, so as to prevent the teeth of the corresponding posterior dental area from generating the buccal side.

Further, referring to fig. 2, the barrier portion 2 is a convex portion 201 protruding toward the buccinator muscle on the buccal side of the shell-shaped body, the force generated when the convex portion 201 is in contact with the buccinator muscle is opposite to the force generated when the corresponding teeth are tilted, and the force generated when the convex portion 201 is in contact with the buccinator muscle is sufficient to prevent the corresponding teeth from being tilted. The mechanism of action of lobe 201 to prevent cheek tilting is: the convex part 201 is contacted and interacted with the cheek muscle, the acting force is generated, the acting force is opposite to the acting force of the cheek inclination of the corresponding tooth, the cheek inclination is prevented, the convex part is arranged on the posterior tooth area, the length of the tooth crown of the posterior tooth area is shorter, the shell-shaped body elastic material forms a three-dimensional vacuole in a limited space to act with the cheek muscle, and the generated acting force is enough to prevent the cheek inclination of the corresponding tooth. More specifically, the convex part can be in contact with the cheek muscle surface, so that the action area of the cheek muscle and the convex part is larger, and the convex part is in a smooth transition cubic structure.

Specifically, the height of the bulge protruding towards the cheek muscle is 2-8 mm. The height of the bulge is 2-8mm, so that the bulge is in contact with the buccinator and can generate interaction force, and the correction effect of preventing the teeth from cheek inclination is achieved.

The distance from the convex part to the gum margin is 1-3mm and the distance from the convex part to the tooth cusp is 0-3mm along the long axis direction of the tooth body. If the distance of bellying apart from the gum edge department is too short, the area of shell form body parcel tooth here reduces, just the bellying is an open-ended spatial structure, if be close to shell form body gum edge design, then the bellying can be at shell form body along gum edge smooth transition back promptly, can make the one side transition of the adjacent opening part of spatial structure forms another opening, when the bellying is used with buccinator, the bellying is owing to have the opening to produce the deformation easily near gum edge department, and the bellying height compares with predetermined height and reduces, and then its effort that prevents the cheek slope also correspondingly reduces, can weaken the effect that the bellying prevents the cheek slope, and consequently the bellying is equipped with certain distance from gum edge department and is preferred selection.

The convex part 201 is provided with a filling part which is used for further supporting the convex part, the acting force of the convex part is insufficient due to excessive deformation generated by the interaction of the convex part and the buccinator muscle, and the arrangement of the filling part further ensures that the acting force generated when the convex part 201 is in contact with the buccinator muscle is enough to prevent the buccination of the corresponding tooth.

Further, the protrusion 201 and the shell-shaped body 101 are of an integral structure or a separate structure.

Referring to fig. 3-4, fig. 4 is a view of fig. 3, the protruding portion 201 is cut along the direction a-a, the protruding portion 201 and the shell-shaped body 101 are of an integral structure, the integral protruding portion has a simple structure, and can be manufactured by a hot pressing method or a direct 3D printing method.

When the protruding portion 201 and the shell-shaped body 101 are in a separate structure, the protruding portion 201 is mounted on the shell-shaped body. The bulge 201 can be installed on the shell-shaped body through the existing connection modes such as threaded connection, clamping connection, mortise and tenon connection, magnetic attraction connection or pasting connection, and is not limited in the installation mode. Compared with the integrated forming, the size and the position of the formed boss are fixed, the boss with the required size and the installation position can be selected according to requirements by the split structure, and the selection is more diversified.

Posterior dental area in this application, the "posterior dental area" is defined according to the classification of teeth as shown in the FDI notation of 4-8 for the anterior molars and molars, and 1-3 for the anterior dental area, in pages 36-38 of the introduction to oral medicine, 2 nd edition, published by Beijing university medical Press. The blocking part 2 provided on the shell-shaped dental instrument 1 in this embodiment may be provided only in the premolar region, only in the molar region, partially in the premolar region and the molar region, or in the partial region of the premolar region and the molar region, or in the premolar region and the molar region.

Further, the width of the convex portion 201 covering the posterior tooth area on the buccal side of the shell-shaped body 101 along the dental arch direction is 1-5 teeth. According to the situation of posterior tooth distancing, the width of the protruding portion 201 may be the width of 1-5 teeth, and taking 1-2 teeth as an example of distancing, correspondingly, the width of the protruding portion 201 is set to be the width of 1 and 2 teeth, specifically: when the width of the convex portion 201 covering the posterior tooth area on the buccal side of the shell-shaped body 101 along the dental arch direction is 1 tooth, the convex portion 201 may cover a single tooth, such as a tooth shown as 5 (i.e., a second premolar) by the full-coverage FDI notation, the width of the convex portion 201 is the width of the single tooth, or the convex portion 201 may be disposed between adjacent teeth, such as between 5 and 6 teeth, that is, the convex portion 201 partially covers 5 teeth, and partially covers 6 (i.e., a first molar) teeth, and the width is one tooth width; when the width of the protruding part 201 covering the posterior tooth area on the buccal side of the shell-shaped body 101 along the dental arch direction is the width of the number of teeth being 2 to 3, referring to fig. 1, the protruding part 201 covers the teeth indicated by the FDI notation of 5 to 7 on the buccal side of the shell-shaped body 101 along the dental arch direction, that is, the protruding part 201 partially covers the teeth indicated by 5, 7 (i.e., the second molar) and the teeth indicated by the full coverage 6, or alternatively, the protruding part 201 covers the teeth indicated by the FDI notation of 6 to 7 on the buccal side of the shell-shaped body 101 along the dental arch direction, that is, the protruding part 201 completely covers the teeth indicated by 6, 7.

Example 2

This embodiment is different from embodiment 1 in that a projection is provided on the tongue side for preventing inclination of the tongue. Specifically, referring to fig. 5, a shell-shaped dental apparatus 1 includes a shell-shaped body 101, where the shell-shaped body 101 is provided with a plurality of cavities for accommodating teeth, and any position of the lingual side of the posterior tooth area of the shell-shaped body 101 is provided with a blocking portion 2 for preventing lingual inclination of the corresponding teeth, and the blocking portion at least partially covers the lingual side of the corresponding posterior tooth area on the shell-shaped body.

In the embodiment, the blocking part 2 is arranged at any position of the lingual side of the posterior tooth area of the shell-shaped body 101 for preventing the tooth from tipping, the blocking part 2 is arranged to at least partially cover the lingual side of the corresponding posterior tooth area on the shell-shaped body 101, and the acting part of the blocking part is arranged to at least partially cover the lingual side of the corresponding posterior tooth area on the shell-shaped body 101, so as to prevent the tooth in the corresponding posterior tooth area from tipping.

Referring to fig. 6, the blocking portion 2 is a protruding portion 201 ' protruding toward the lingual muscle on the lingual side of the shell-shaped body, the force generated when the protruding portion 201 ' contacts the lingual muscle is opposite to the force generated when the corresponding tooth is inclined, and the force generated when the protruding portion 201 ' contacts the lingual muscle is sufficient to prevent the corresponding tooth from being inclined.

The mechanism of action of the protrusion 201' to prevent tongue inclination is: the bulge 201' is contacted and interacted with the tongue muscle to generate acting force which is opposite to the acting force of the corresponding tooth lingual inclination to prevent the tongue inclination, and because the bulge is arranged in the posterior tooth area, the length of the tooth crown of the posterior tooth area is shorter, the shell-shaped body elastic material forms a three-dimensional vacuole in a limited space to act with the tongue muscle, and the generated acting force is enough to prevent the corresponding tooth lingual inclination.

Specifically, the height of the bulge protruding towards the tongue muscle is 2-8 mm. The height of the bulge is 2-8mm, so that the bulge is in contact with the tongue muscle, and interaction force can be generated, and the correction effect of preventing tooth and tongue inclination is achieved.

The distance from the convex part to the gum margin is 1-3mm and the distance from the convex part to the tooth cusp is 0-3mm along the long axis direction of the tooth body. If the distance of bellying apart from the gum edge department is too short, then the area of shell form body parcel tooth here reduces, just the bellying is an open-ended spatial structure, if be close to shell form body gum edge design, then the bellying can be at shell form body along gum edge smooth transition back promptly, can make the one side transition of the adjacent opening part of spatial structure forms another opening, when the bellying is used with the tongue muscle, the bellying is owing to have the opening to produce deformation easily near gum edge department, and the bellying height compares with predetermined height and reduces, then its effort that prevents the tongue and incline also corresponding reduction, can weaken the effect that the bellying prevents the tongue and incline, and consequently the bellying is equipped with certain distance from gum edge department and is preferred selection.

The bulge 201 'is internally provided with a filling part which is used for further supporting the bulge, so that the insufficient acting force of the bulge caused by excessive deformation generated by the interaction of the bulge and the tongue muscle is prevented, and the arrangement of the filling part further ensures that the acting force generated when the bulge 201' is in contact with the tongue muscle is enough to prevent the corresponding tooth and tongue from inclining.

Further, the protrusion 201' and the shell-shaped body 101 are of an integral structure or a separate structure.

Referring to fig. 6-7, fig. 7 is a view of fig. 6, the protruding portion 201 'is cut along the direction B-B, the protruding portion 201' and the shell-shaped body 101 are of an integral structure, and the integral protruding portion has a simple structure and can be manufactured by a hot pressing method or a direct 3D printing method.

When the protruding portion 201 'and the shell-shaped body 101 are in a separate structure, the protruding portion 201' is mounted on the shell-shaped body. The bulge 201' can be installed on the shell-shaped body through the existing connection modes such as threaded connection, clamping connection, mortise and tenon connection, magnetic attraction connection or pasting connection, and the installation mode is not limited. Compared with the integrated forming, the size and the position of the formed boss are fixed, the boss with the required size and the installation position can be selected according to requirements by the split structure, and the selection is more diversified.

Posterior dental area in this application, the "posterior dental area" is defined according to the classification of teeth as shown in the FDI notation of 4-8 for the anterior molars and molars, and 1-3 for the anterior dental area, in pages 36-38 of the introduction to oral medicine, 2 nd edition, published by Beijing university medical Press. The protruding portion 201' provided on the shell-shaped dental instrument 1 in this embodiment may be provided only in the premolar region, may be provided only in the molar region, may be partially provided in the premolar region and the molar region, may be provided in a partial region of the premolar region and the molar region, and may be provided in the premolar region and the molar region in a full-coverage manner.

Further, the width of the protruding part 201' covering the posterior tooth area on the lingual side of the shell-shaped body 101 along the dental arch direction is 1-5 teeth in number. According to the situation of posterior tooth distancing, the width of the protruding portion 201 'may be the width of 1-5 teeth, and taking 1-2 teeth as an example of distancing, correspondingly, the width of the protruding portion 201' is set to be the width of 1 and 2 teeth, specifically: when the width of the protrusion 201 'covering the posterior tooth area on the lingual side of the shell-shaped body 101 along the arch direction is 1 tooth in number, the protrusion 201' may cover a single tooth, such as a tooth shown as 5 (i.e., a second premolar) by the full-coverage FDI notation, and the width of the protrusion 201 'is the width of the single tooth, or the protrusion 201' may be disposed between adjacent teeth, such as between 5 and 6 teeth, such as a tooth covered by the protrusion 201 'partially 5 and a tooth covered by the protrusion 201' partially 6 (i.e., a first molar), and the width is one tooth width; when the width of the protruding part 201 ' covers the posterior tooth area on the lingual side of the shell-shaped body 101 along the dental arch direction is the width of 2 to 3 teeth, referring to fig. 1, the protruding part 201 ' covers the teeth indicated by the FDI notation of 5 to 7 on the lingual side of the shell-shaped body 101 along the dental arch direction, i.e., the protruding part 201 ' partially covers the teeth indicated by 5, 7, i.e., the second molars) and the teeth indicated by the full coverage 6, or the protruding part 201 ' covers the teeth indicated by the FDI notation of 6 to 7 on the lingual side of the shell-shaped body 101 along the dental arch direction, i.e., the protruding part 201 ' fully covers the teeth indicated by 6, 7.

Example 3

Referring to fig. 8, a shell-shaped dental device 1 comprises a shell-shaped body 101, wherein the shell-shaped body 101 is provided with a plurality of cavities for accommodating teeth, a blocking part 2 for preventing cheek tilting of corresponding teeth is arranged at any position of the buccal side of the posterior dental area of the shell-shaped body 101, and the blocking part 2 at least partially covers the buccal side of the corresponding posterior dental area on the shell-shaped body.

The barrier 2 is a buccal reinforcement 202 of the posterior dental area of the shell-shaped dental device, said reinforcement 202 opposing the force of the buccal inclination of the respective tooth.

The mechanism of action of the reinforcement 202 to prevent cheek tilting is: the reinforcement 202 interacts with the contact of the tooth where the cheek tilting occurs, generating a force that opposes the force of the corresponding tooth cheek tilting, preventing cheek tilting, and the reinforcement 202, due to its strength, generates a force sufficient to prevent the corresponding tooth cheek tilting.

The reinforcing part 202 covers the posterior tooth area on the buccal side of the shell-shaped body in the arch direction, and has a width of 1-5 teeth. The principle of setting the width of the reinforcing portion 202 is similar to that of setting the projecting portion 201 of embodiment 1, and will not be described in detail here.

Further, the reinforcing portion 202 is a thickened portion 202A, a bead 202B, or a reinforcement.

Referring to fig. 9, fig. 9 is a cross-sectional view taken along line C-C of fig. 8, wherein the thickened portion 202A has a single-layer structure with a layer thickness of 1-5 mm. If the thickness of thickening portion 202A layer is too thick, the less comfortable foreign matter sense of patient's dress is stronger and easy fracture, if too thin, its effort that produces is not enough to prevent corresponding tooth cheek and incline, through setting up the layer thickness and being 1-5mm, ensures that its effort that produces is enough to prevent corresponding tooth cheek and incline, simultaneously, strengthens wearing comfortable experience sense.

Of course, in other embodiments, when the thickened portion 202A is a multi-layer structure (not shown in the drawings), the total thickness is 1-5mm, at this time, the multi-layer structure may be a shell-shaped body which is a whole multi-layer structure or a structure which is provided with multiple layers locally at the position where the teeth need to be prevented from cheek tilting, if the total thickness of the thickened portion 202A is too thick, the comfort of the patient wearing is poor, the foreign body feeling is strong and the patient is easy to break, if the thickened portion is too thin, the acting force generated by the thickened portion is not enough to prevent the corresponding teeth from cheek tilting, and by setting the total thickness to 1-5mm, the acting force generated by the thickened portion is ensured to.

Referring to fig. 10, the reinforcing portion 202 is a reinforcing bead 202B. A plurality of ribs 202B may be disposed along the long axis of the dental body, and the ribs 202B at least partially cover the buccal side of the corresponding posterior dental area on the shell-shaped body. The rib 202B may be provided in a direction perpendicular to the longitudinal direction of the tooth body, or may be provided in any direction that can prevent the tooth from being tilted. Fig. 11 is a cross-sectional view taken along direction D-D of fig. 10, the shell-like body 101 having an increased thickness at the reinforcing rib 202B to form the reinforcing portion.

The reinforcing members can be arranged into a plurality of reinforced convex point structures or other reinforcing structures, so that the shell-shaped body provided with the reinforcing members has enough acting force for preventing the teeth from cheek tilting, the reinforcing members at least partially cover the cheek sides of the corresponding posterior tooth areas on the shell-shaped body, and the strength of the shell-shaped body at the reinforcing members is enough for preventing the teeth from cheek tilting.

The reinforcing portion 202 and the shell-shaped body 101 are of an integral structure or a separate structure. The thickened portion 202A will be described as an example.

Referring to fig. 9, fig. 9 is a cross section of the thickened portion 202A in the direction D-D in fig. 8, the thickened portion 202A and the shell-shaped body 101 are of an integral structure, the integral thickened portion 202A is simple in structure, and the manufacturing method is relatively simple.

As for the thickened portion 202A of multiple layers, the thickened portion 202A may be formed by hot pressing of multiple film sheets, or the thickened portion 202A may be formed integrally by 3D printing.

In other embodiments, the thickened portion 202A and the shell-shaped body 101 may be a separate structure, and the thickened portion 202A is mounted on the shell-shaped body. Thickening portion 202A accessible current threaded connection, joint, mortise and tenon joint, magnetism are inhaled and are connected or paste connection's connection mode and install on the shell body, to the mounting means, do not do the restriction. Compared with the integral molding, the size and the position of the thickened part 202A are fixed after the molding, and the thickened part 202A with the required size and the installation position can be selected according to the requirement in a split type structure, so that the selection is more diversified.

The bead 202B or the reinforcement member is provided separately or integrally similarly to the thickened portion 202A, and will not be described in detail here.

Example 4

The present embodiment is different from embodiment 3 in that a reinforcing portion 202 is provided on the tongue side for preventing tongue inclination. The blocking part 2 is a reinforced part 202 on the lingual side of the posterior tooth area of the shell-shaped dental appliance, and the reinforced part 202 is opposite to the acting force of the lingual inclination of the corresponding tooth. And will not be expanded upon in detail herein.

Example 5

A set of shell-shaped dental instruments comprises a first shell-shaped body, which is a shell-shaped dental instrument 1 as described in embodiments 1 to 4, and a second shell-shaped body, which is provided with a plurality of second cavities for receiving teeth, wherein the second shell-shaped dental instrument 3 is used in cooperation with the first shell-shaped dental instrument 1.

And a blocking part for preventing cheek inclination of corresponding teeth is arranged at any position of the cheek side of the posterior tooth area of the second shell-shaped body, and the blocking part at least partially covers the cheek side of the corresponding posterior tooth area. When the first shell-like body is provided with a blocking part for preventing the tongue from inclining, the first shell-like body is used for the lower jaw.

Specifically, referring to fig. 12A, a first shell-shaped dental device 1A according to embodiments 1 and 3 is a shell-shaped dental device 1A that prevents cheek tilting and can be used for the upper jaw or the lower jaw, and a second shell-shaped dental device 3A is a general shell-shaped dental device, the second shell-shaped dental device is provided with a plurality of second cavities for receiving teeth, and the second shell-shaped dental device 3A is used in cooperation with the first shell-shaped dental device 1A. In fig. 12A, the first shell-like dental instrument 1A is for the upper jaw and the second shell-like body 3A is for the lower jaw; of course, in other embodiments, the first shell-like body 1A, which prevents cheek tilting, may be used for the lower jaw and the second shell-like dental appliance 3A for the upper jaw.

In another embodiment, referring to fig. 12B, the first shell-like body is the shell-like dental device 1B of embodiments 2 and 4, preventing glossing, for use with the lower jaw, the second shell-like body is provided with a plurality of second cavities for receiving teeth, and the second shell-like dental device 3B is used in cooperation with the first shell-like dental device 1B.

In another embodiment, referring to fig. 12C, a first shell-like body is a shell-like dental appliance 1C as described in embodiments 1, 3 that prevents buccal tipping and can be used for either the upper or lower jaw, and a second shell-like body is also a shell-like dental appliance 4C as described in embodiments 1, 3 that prevents buccal tipping, the second shell-like dental appliance 4C being used in conjunction with the first shell-like dental appliance 1C.

Example 6

The utility model provides a shelly dentistry system of rescuring, including a plurality of shelly dentistry instrument suit, different shelly dentistry instrument suits are applied to the difference and correct the stage, and at least one dentistry is rescued the suit and is as in any one of embodiment 5 shelly dentistry instrument suit.

Further, along with the process of correction, the acting force of the blocking part and the teeth is adjusted according to the correction requirement.

When the blocking part is a convex part, the acting force generated when the blocking part is in contact with the buccinator or the lingual muscle is kept unchanged, gradually increased or gradually reduced along with the correction process. Specifically, the shape of the protrusion is configured to remain the same, increase or decrease as the correction process progresses.

Specifically, the height and size of the protrusion or the coverage width of the protrusion, the use of different elastic materials or the size of the filling part and the like can be changed to change the acting force of the protrusion, and along with the correction process, the acting force of the blocking part and the teeth can be adjusted according to the correction requirements. Specifically, the height of the protrusion part is gradually maintained unchanged in the posterior tooth distancing process until the correction process is finished so as to maintain the inclination degree of the teeth in the posterior tooth distancing process; the height of the convex part can be gradually reduced along with the correction process, so that when the posterior teeth move far, the degree of buccal inclination or lingual inclination is reduced along with the movement of the posterior teeth to the target correction position, and the height of the convex part is gradually reduced; of course, the convex part can also be designed as the correction process is carried out: the initial stage of correcting, the effort that bellying and buccinator or tongue muscle contact produced is less, and concrete implementation form does the protruding height of bellying is along with correcting the process and going on crescent to make the patient adapt to wear of ware, along with correcting the process and going on, the protruding height of bellying increases gradually, and with the effort that produces when buccinator or tongue muscle effect, can be enough to prevent posterior teeth distancing in-process takes place cheek slope or tongue slope, when posterior teeth distancing to correcting the target location, the protruding height of bellying reduces gradually to consolidate the patient and prevent that its posterior teeth from taking place cheek slope or tongue slope, finally reach and correct the effect.

When the blocking part is the reinforcing part, the acting force of the blocking part and the teeth is kept unchanged, gradually increased or gradually reduced along with the correction process. Specifically, the reinforcing part is designed into a structure with an increased thickness, wherein the thickness of the reinforcing part is gradually kept unchanged in the posterior tooth distancing process until the correction process is finished so as to maintain the inclination degree of the teeth in the posterior tooth distancing process; the thickness of the reinforcing part can be gradually reduced along with the progress of the correction process, so that when the posterior teeth move far, the degree of buccal inclination or lingual inclination is reduced along with the movement of the posterior teeth to the target correction position, and the thickness of the reinforcing part is gradually reduced; of course, the reinforcement part can also be designed as the correction process progresses: the initial stage is rescued, the effort that produces is opposite when the rib inclines with the tooth cheek or the tongue inclines, and the thickness of correcting the initial stage rib is less, along with correcting the process and going on the thickness of rib crescent to make the patient adapt to wearing of correction ware, along with correcting the process and going on, the thickness of rib crescent, and with the effort that produces when tooth cheek inclines or the tongue inclines, can be enough to prevent posterior teeth distancing in-process takes place cheek and inclines or tongue incline, when the posterior teeth distancing to correcting the target location, the thickness of rib reduces gradually to consolidate the patient and prevent that its posterior teeth from taking place cheek and incline or tongue incline, finally reach and correct the effect. Of course, the design method of the reinforcing part provided with the reinforcing ribs or the reinforcing parts is similar, and the description is omitted.

Further, the magnitude of the urging force of the reinforcing portion can be changed by changing the thickness of the single layer or the multiple layers of the thickened portion, changing the size of the rib or the reinforcing member, using different elastic materials, or the like.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A shell-shaped dental appliance comprises a shell-shaped body, wherein the shell-shaped body is provided with a plurality of cavities for accommodating teeth, and is characterized in that a blocking part for preventing buccal inclination or lingual inclination of corresponding teeth is arranged at the buccal side or lingual side of the posterior tooth area of the shell-shaped body, and the blocking part at least partially covers the buccal side or lingual side of the corresponding posterior tooth area on the shell-shaped body.

2. The shell-like dental device of claim 1, wherein the blocking portion is a protrusion protruding toward the buccinator muscle or the lingual muscle on the buccal side or the lingual side of the shell-like body, respectively, wherein the contact of the protrusion with the buccinator muscle or the lingual muscle generates a force opposite to the force of the buccally or lingual inclination of the corresponding tooth, and the contact of the protrusion with the buccinator muscle or the lingual muscle generates a force sufficient to prevent the buccally or lingual inclination of the corresponding tooth.

3. A shell-like dental instrument according to claim 2, wherein the height of the projection projecting in the direction of the buccinator or lingual muscle is 2-8 mm.

4. A shell-like dental instrument according to claim 2, wherein the protrusion is located at a distance of 1-3mm from the gingival margin and 0-3mm from the cusp, in the direction of the long axis of the tooth body.

5. A shell-like dental instrument according to claim 1, wherein the barrier is a buccal or lingual reinforcement of the posterior dental area of the shell-like dental instrument, which reinforcement opposes the force of the buccal or lingual inclination of the respective tooth, wherein the reinforcement is a thickening, a rib or a reinforcement.

6. A shell-like dental instrument according to claim 5, wherein the thickened portion is of single-layer or multi-layer construction, wherein the layer thickness is 1-5mm for single-layer construction; the total thickness is 1-5mm in case of multi-layer structure.

7. A shell-shaped dental implement according to claim 1, characterised in that the barrier covers the posterior dental area in the arch direction on the buccal or lingual side of the shell-shaped body over a width of 1-5 teeth in number.

8. A shell-like dental instrument according to claim 3, wherein a filling portion is provided in the projection.

9. A shell-like dental instrument according to claim 1, wherein the blocking portion is of integral or separate construction from the shell-like body.

10. A shell-like dental instrument according to claim 9, wherein the blocking portion is mounted on the shell-like body when the blocking portion is of a separate construction from the shell-like body.

11. A set of shell-like dental instruments comprising a first shell-like body and a second shell-like body, wherein the first shell-like body is a shell-like dental instrument according to any one of claims 1 to 10, the second shell-like body is provided with a plurality of second cavities for receiving teeth, and the second shell-like dental instrument is used in cooperation with the first shell-like dental instrument.

12. The shell-like dental kit of claim 11, wherein the second shell-like body has a blocking portion at any position on the buccal side of the posterior dental area for preventing buccal inclination of the corresponding tooth, the blocking portion at least partially covering the buccal side of the corresponding posterior dental area.

13. A shell-like dental appliance system comprising a plurality of shell-like dental appliance sets, different shell-like dental appliance sets being applied in different appliance stages, characterized in that at least one dental appliance set is a shell-like dental appliance set according to any of claims 11 or 12.

14. The shell-like dental correction system of claim 13, wherein the force of the stop against the tooth is adjusted as the correction process progresses according to the correction requirements.

15. The shell-like dental correction system of claim 14, wherein when the stop is a protrusion, the force generated by the stop when contacting the buccinator or lingual muscle remains constant, increases or decreases as the correction progresses.

16. The shell-like dental correction system of claim 15, wherein the projections are shaped to remain constant, increase or decrease as the correction process progresses.