Dental assembly

Abstract

The dental component comprises a dental orthodontic appliance and a functional part which are connected with each other, the dental orthodontic appliance comprises an appliance body with a cavity for accommodating teeth and a fixing part protruding out of the appliance body towards one side far away from the cavity, and the fixing part comprises a fixing part body and an embedding part; a cavity communicated with the cavity is defined by the fixing part body, the embedding part is located in the cavity, the fixing part is provided with a penetrating hole part, the penetrating hole part comprises a first opening penetrating through the fixing part body and a channel located in the embedding part and communicated with the first opening, the functional part comprises an inserting end, and the inserting end comprises an inserting end body and a fixing structure protruding out of the inserting end body. The insertion end penetrates through the first opening and extends to the channel, and the retention structure and the embedded part are mutually limited. The insertion end comprises the insertion end body and the fixing structure protruding out of the insertion end body, the fixing structure and the embedding part are mutually limited, and therefore the limiting effect between the insertion end and the fixing part is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooth straightening technical field especially relates to a dental assembly. BACKGROUND

[0002] In the tooth straightening field, it is usually required to use dental instruments and external functional parts jointly to realize specific functions, for example, when the dental instrument is a dental orthodontic appliance, in order to realize better orthodontic effect, the dental orthodontic appliance usually needs to be used jointly with the external functional part, at this time, the interface structure connecting the functional part needs to be formed on the dental orthodontic appliance.

[0003] At present, the connection strength between the functional part and the dental orthodontic appliance is limited, and the functional part is easy to separate from the dental orthodontic appliance. SUMMARY

[0004] One of the purposes of the utility model is to provide a dental assembly, which can improve the limiting effect between the functional part and the dental orthodontic appliance.

[0005] The utility model embodiment provides a dental assembly, including the dental orthodontic appliance and functional part who links, the dental orthodontic appliance includes the appliance body with the cavity of containing tooth, and the fixed part of the appliance body is protruded to the fixed part of the appliance body to the side away from the cavity, the fixed part includes fixed part body and embedded part, the fixed part body is surrounded and is formed the cavity that communicates the cavity, the embedded part is located in the cavity, the fixed part has the perforated part, the perforated part includes the first aperture of the fixed part body and the channel in the embedded part and the first aperture communication, the functional part includes the insertion end, the insertion end includes the insertion end body and the retention structure of protruding the insertion end body, the insertion end passes through the first aperture and extends to the channel, and the retention structure and the embedded part are limited each other.

[0006] Optionally, the inner contour of the channel and the outer contour of the insertion end are matched with each other.

[0007] Optionally, the embedded part is in complete contact with the insertion end.

[0008] Optionally, the embedded part is formed by the material filled in the cavity.

[0009] Optionally, the insertion end body extends along the first direction, the retention structure extends along the second direction, and the included angle between the first direction and the second direction is an acute angle, a right angle or an obtuse angle.

[0010] Optionally, the retention structure is a bending structure connecting the end of the insertion end body, and the retention structure is integrally formed with the insertion end body.

[0011] Optionally, the retaining structure is a fence structure protruding from the insertion end body.

[0012] Optionally, the through hole further comprises a second opening hole penetrating the fixing portion body, the channel communicates the first opening hole and the second opening hole, and the insertion end sequentially passes through the first opening hole, the channel and the second opening hole.

[0013] Optionally, the functional part comprises an arch wire connected to the dental orthodontic appliance, and the insertion end is a free end of the arch wire.

[0014] Optionally, the functional part is an extraoral bow, a lip bumper, a lower auxiliary arch or an expansion auxiliary arch.

[0015] Compared with the prior art, the beneficial effects of the dental assembly of the embodiment of the present application are as follows: the insertion end of the embodiment of the present application comprises an insertion end body and a retaining structure protruding from the insertion end body, the retaining structure and the embedding portion are limited to each other, thereby improving the limiting effect between the insertion end and the fixing portion. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figures 1 to 7 is a plurality of schematic diagrams of the dental assembly of the embodiment of the present application;

[0017] Figures 8 to 18 is a schematic diagram of the dental assembly of the specific implementation form of the present application;

[0018] Figure 19 is a forming method step diagram of the dental assembly of the specific implementation form of the present application. DETAILED DESCRIPTION

[0019] The present application will be described in detail below with reference to the specific embodiments shown in the drawings. However, these embodiments do not limit the present application, and the structural, method or functional changes made by those skilled in the art based on these embodiments are all included in the protection scope of the present application.

[0020] In combination with Figures 1 to 7 is a schematic diagram of the dental assembly 300 of the embodiment of the present application.

[0021] The dental assembly 300 comprises a functional part 200 and a dental appliance 100.

[0022] The dental appliance 100 comprises an appliance body 101 having a cavity S and a fixing portion 10 protruding from the appliance body 101 towards a side away from the cavity S.

[0023] The fixed part 10 has a perforated part 11, and the insertion end 203 of the functional part 200 is limited in the perforated part 11, so that the mutual connection of the dental instrument 100 and the functional part 200 can be realized, and the position limitation of the functional part 200 can be realized by limiting the insertion end 203 in the perforated part 11.

[0024] The dental instrument 100 can be a dental orthodontic appliance, an anchorage guide, an accessory installation template, etc.

[0025] In an application scenario of the utility model, in combination with Figures 1 to 7 Take the dental instrument 100 as a dental orthodontic appliance 100 as an example for description.

[0026] The dental orthodontic appliance 100 can be, for example, a clear aligner, and the functional part 200 can be, for example, an archwire structure, but is not limited thereto.

[0027] The clear aligner can be a shell-shaped structure made of a high polymer material.

[0028] The archwire structure is, for example, an extraoral arch, a lip bumper, a downforce auxiliary arch or an expansion auxiliary arch, etc., such as Figure 1 and Figure 2 The functional part 200 is shown as a lip bumper, as shown in Figure 3 The functional part 200 is shown as an extraoral arch, as shown in Figure 4 The functional part 200 is shown as a downforce auxiliary arch, as shown in Figure 5 and Figure 6 The functional part 200 is shown as an expansion auxiliary arch.

[0029] Figure 1 and Figure 2 The lip bumper shown in the drawing comprises an action part 201 arranged corresponding to the anterior tooth region and an archwire 202 connected to both sides of the action part 201 and extending towards the distal direction, the action part 201 contacts the upper lip to interact with each other, and the archwire 202 is connected with the two fixed parts 10 of the buccal surface A1 of the dental orthodontic appliance 100.

[0030] Figure 3 The extraoral arch shown in the drawing comprises an archwire 202, and the archwire 202 is connected with the two fixed parts 10 of the buccal surface A1 of the dental orthodontic appliance 100.

[0031] Figure 4 The downforce auxiliary arch shown in the drawing comprises an archwire 202, and the archwire 202 is connected with the two fixed parts 10 of the buccal surface A1 of the dental orthodontic appliance 100, and the middle part of the archwire 202 abuts against a traction buckle 500.

[0032] Figure 5 The expansion auxiliary arch shown in the drawing comprises an archwire 202, and the archwire 202 is connected with the two fixed parts 10 of the lingual surface A2 of the dental orthodontic appliance 100.

[0033] Figure 6 The arch expansion auxiliary arch shown includes arch wires 202, the middle part of the arch wires 202 passes through the fixed part 10 of the lingual side A2 of the dental orthodontic appliance 100, and the two ends of the arch wires 202 pass through the two slot structures 600 of the dental orthodontic appliance 100.

[0034] The dental orthodontic appliance 100 includes an appliance body 101 with a cavity S accommodating teeth, and a fixed part 10 protruding from the appliance body 101 towards the side away from the cavity S, that is, the appliance body 101 at this time is the appliance body 101, and the fixed part 10 is located on the buccal side A1 or the lingual side A2 of the appliance body 101.

[0035] Taking the lip bumper as an example, the fixed part 10 is arranged corresponding to the buccal side A1 of the posterior tooth area, the dental assembly 300 includes two fixed parts 10 located in the same dental arch of two posterior tooth areas, and the functional part 200 includes two insertion ends 203 which are matched with the two fixed parts 10 one by one.

[0036] The two arch wires 202 connected to the working part 201 of the lip bumper extend towards two distal directions on the left and right sides respectively, and the two free ends of the two arch wires 202 away from the lip bumper are defined as the two insertion ends 203. The entrance of the perforated part 11 of the fixed part 10 is located on the mesial side of the fixed part 10, and the insertion end 203 enters the perforated part 11 from the entrance of the perforated part 11 to realize the connection between the functional part 200 and the dental orthodontic appliance 100.

[0037] In actual application, when the upper lip interacts with the working part 201 of the lip bumper, the force is transmitted to the fixed part 10 through the arch wire 202, and then the fixed part 10 transmits the force to the dental orthodontic appliance 100 to realize the distal movement of the molar in the posterior tooth area.

[0038] Of course, in other application scenarios, when the functional part 200 is a non-arch wire structure, the insertion end 203 can also not be the free end of the arch wire, and the insertion end 203 can be other structures. In addition, the fixed part 10 can also be arranged corresponding to other areas of the teeth (for example Figure 5 、 Figure 6 The fixed part 10 shown is arranged corresponding to the lingual side A2), and the entrance of the perforated part 11 can also be located at other positions.

[0039] The insertion end 203 enters the fixed part 10 from the perforated part 11 to realize the mutual limiting between the insertion end 203 and the fixed part 10, thereby realizing the effective cooperation between the functional part 200 and the dental orthodontic appliance 100.

[0040] Optionally, in each treatment step, the spatial relative position of the fixed part 10 and the target point remains unchanged.

[0041] The target point refers to a point that does not move in position during the orthodontic treatment, for example, a point on the upper jaw tissue or a point in the anterior tooth region, or a virtual point in the software design process, for example, a point corresponding to the nose on the CBCT, etc.

[0042] In each orthodontic step, the spatial relative position of the fixed part 10 to the target point remains unchanged, which can ensure that the relative distance between the force application point (corresponding to the target point) and the action point (corresponding to the fixed part 10) remains unchanged, thereby realizing the continuous and stable force application of the functional part 200.

[0043] At this time, the combination part (i.e., the fixed part 10) of the functional part 200 and the dental orthodontic appliance 100 is mobile relative to the teeth to be treated (the teeth in the posterior tooth region).

[0044] Optionally, the free end (i.e., the insertion end 203) of the arch wire 202 enters the through hole part 11 from the entrance of the through hole part 11, and the dental assembly 300 further comprises a stop part 2021 connected to the insertion end 203, and the surrounding area of the entrance cooperates with the stop part 2021 to limit the movement of the arch wire 202 towards the inside of the through hole part 11, that is, to avoid the arch wire 202 from continuously moving in the distal direction and excessively entering the inside of the through hole part 11, so that the force of the arch wire 202 can be more effectively transmitted to the fixed part 10.

[0045] In addition, at least one U-shaped bending part 2022 is formed on the arch wire 202, and the U-shaped bending part 2022 is located between the stop part 2021 and the action part 201, and the U-shaped bending part 2022 can be used to adjust the length of the arch wire 202 in the mesial-distal direction.

[0046] Optionally, the dental orthodontic appliance 100 further comprises a reinforcing part 20 arranged adjacent to the fixed part 10, the reinforcing part 20 protrudes out of the appliance body 101 towards the side away from the cavity S, and the reinforcing part 20 is formed with a receiving cavity S2 for accommodating the dental surface accessory, and the height of the reinforcing part 20 is less than the height of the fixed part 10.

[0047] Optionally, the accessory can be pre-added on the dental surface, and when the dental orthodontic appliance 100 is worn, the receiving cavity S2 of the reinforcing part 20 cooperates with the accessory, so that the retention capability between the dental orthodontic appliance 100 and the teeth under stress can be enhanced, and the dental orthodontic appliance 100 can be prevented from being detached, and the height of the reinforcing part 20 is made small to avoid the reinforcing part 20 from excessively interfering with the inside of the oral cavity or the functional part 200.

[0048] Since the functional part 200 will apply force to the fixed part 10, the area of the appliance body 101 connected to the fixed part 10 is prone to be separated from the dental surface, and in severe cases, the entire dental orthodontic appliance 100 can be detached, therefore, the reinforcing part 20 can be arranged adjacent to the fixed part 10 in this embodiment, so that the reinforcing part 20 can be used to reinforce the fixed part 10 and the appliance body 101 connected to the fixed part 10, thereby preventing the dental orthodontic appliance 100 from being detached. Figure 1 and Figure 2As shown, the reinforcing portion 20 is arranged on the left and right sides and the opposite side of the fixing portion 10.

[0049] The specific implementation form of the fixing portion 10 is introduced below.

[0050] In combination Figures 8 to 19 The dental assembly 300a includes the dental appliance 100a and the functional piece 200a, the dental appliance 100a is an orthodontic appliance 100a, and the functional piece 200a is a lip bumper.

[0051] The orthodontic appliance 100a includes an appliance body 101a having a cavity S accommodating teeth and a fixing portion 10a protruding from the appliance body 101a towards a side away from the cavity S, and the fixing portion 10a includes a perforated portion 11a for inserting an insertion end 203a of the functional piece 200a.

[0052] The fixing portion 10a includes a fixing portion body 12a and an embedded portion 13a.

[0053] The fixing portion body 12a surrounds to form a cavity S1 communicating with the cavity S, and the embedded portion 13a is located in the cavity S1.

[0054] Optionally, the fixing portion body 12a includes a peripheral portion 121a and a top portion 122a connected with each other, the peripheral portion 121a is connected with the appliance body 101a, and the peripheral portion 121a and the top portion 122a surround to form the cavity S1.

[0055] The fixing portion body 12a is substantially in a cap-shaped structure, a hollow structure in a middle portion of the fixing portion body 12a forms the cavity S1, the fixing portion body 12a is integrally formed with the appliance body 101a, the forming process of the fixing portion body 12a is simple, and the fixing portion body 12a cooperates stably with the appliance body 101a.

[0056] The perforated portion 11a includes a first aperture 111a penetrating through the fixing portion body 12a and a channel 131a located in the embedded portion 13a and communicating with the first aperture 111a, the insertion end 203a passes through the first aperture 111a and extends to the channel 131a, and the first aperture 111a is located in the peripheral portion 121a or the top portion 122a.

[0057] Optionally, the embedded portion 13a is formed by a material filled in the cavity S1.

[0058] For example, the embedded portion 13a can be composed of a resin material, the insertion end 203a can be inserted into the cavity S1 first, and then the embedded portion 13a can be formed by filling the resin, so that various shapes of the insertion end 203a can be adapted, and the embedded portion 13a can tightly cooperate with the insertion end 203a.

[0059] The embedded portion 13a is in a block structure, and the outer surface of the embedded portion 13a contacts the inner surface of the fixing portion body 12a, that is, the embedded portion 13a can be filled in the cavity S1 as a filler.

[0060] Optionally, the overall strength of the entire fixing portion 10a can be improved by adding the embedded portion 13a, and the deformation resistance of the entire fixing portion 10a under the action of force can be improved. In addition, the insertion end 203a simultaneously passes through the first opening 111a and the channel 131a, that is, the insertion end 203a simultaneously connects the fixing portion body 12a and the embedded portion 13a, which can greatly improve the stability of the cooperation between the insertion end 203a and the fixing portion 10a, and further realize the effective transmission of the force of the arch wire 202a.

[0061] Optionally, the perforated portion 11a can further include a second opening 112a penetrating the fixing portion body 12a, and the channel 131a penetrates the embedded portion 13a. The insertion end 203a sequentially passes through the first opening 111a, the channel 131a, and the second opening 112a, which can further improve the limiting effect between the insertion end 203a and the fixing portion 10a.

[0062] The first opening 111a is located on the peripheral portion 121a or the top portion 122a, and the second opening 112a is located on the peripheral portion 121a or the top portion 122a, but it is not limited thereto. The number and position of the openings of the perforated portion 11a can be determined according to actual conditions.

[0063] Optionally, the channel 131a is in a straight line type or an L type, but it is not limited thereto.

[0064] Optionally, the insertion end 203a includes an insertion end body 2032a and a retaining structure 2031a protruding from the insertion end body 2032a. The retaining structure 2031a and the embedded portion 13a are limited to each other, which can further improve the limiting effect between the insertion end 203a and the fixing portion 10a.

[0065] Optionally, the inner contour of the channel 131a and the outer contour of the insertion end 203a match each other.

[0066] The channel 131a includes a portion accommodating the insertion end body 2032a and a portion accommodating the retaining structure 2031a. When the embedded portion 13a is formed by the material filled in the cavity S1, the embedded portion 13a directly contacts the insertion end 203a during the filling process. The inner contour of the channel 131a formed by the embedded portion 13a completely matches the outer contour of the insertion end 203a, and the embedded portion 13a completely contacts the insertion end 203a.

[0067] Optionally, the insertion end body 2032a extends along a first direction, the retention structure 2031a extends along a second direction, and an included angle between the first direction and the second direction is an acute angle, a right angle, or an obtuse angle. The insertion end body 2032a is arranged at an angle with the retention structure 2031a, which can prevent the insertion end 203a from being separated from the channel 131a in the direction opposite to the insertion direction.

[0068] Optionally, a friction structure or at least one engagement structure is formed between the embedding portion 13a and the fixing portion body 12a, which can improve the fitting strength between the embedding portion 13a and the fixing portion body 12a.

[0069] In combination Figure 10 When the engagement structure is formed between the embedding portion 13a and the fixing portion body 12a, the engagement structure includes the mating engagement groove 132a and the protrusion 124a, one of which is located on the embedding portion 13a, and the other is located on the fixing portion body 12a.

[0070] Here, the engagement groove 132a is located on the embedding portion 13a, and the protrusion 124a is located on the fixing portion body 12a. The engagement structure can be arranged close to the dental surface.

[0071] Optionally, the embedding portion 13a is away from the surface of the top 122a that contacts the dental surface, and the embedding portion 13a includes a first material layer that contacts the dental surface and a second material layer that is away from the dental surface. The hardness of the first material layer is less than the hardness of the second material layer.

[0072] The embedding portion 13a can include at least two materials. The softer material that contacts the dental surface can improve the wearing experience, and the harder material that fills the cavity S1 away from the dental surface can further improve the strength of the cavity S1.

[0073] In other examples, the embedding portion 13a can be away from the surface of the top 122a that contacts the dental surface, i.e., there can be a gap between the embedding portion 13a and the dental surface.

[0074] Optionally, the cavity S formed by the fixing portion body 12a can be a rectangular cavity or a similar rectangular cavity.

[0075] The fixing portion body 12a is arranged corresponding to the buccal surface A1 or the lingual surface A2. In a direction parallel to the buccal surface A1, the cross-sectional profile of the fixing portion body 12a is rectangular, and the long side of the rectangle is parallel to the mesiodistal direction. In a direction perpendicular to the mesiodistal direction, the cross-sectional profile of the fixing portion body 12a is trapezoidal, but not limited thereto.

[0076] Optionally, the outer contour of the fixed portion body 12a is gradually converging in the direction of gradually approaching the tooth surface, that is, the outer contour size of the top portion 122a is larger than the outer contour size of the circumferential portion 121a at the connection of the appliance body 101a, which can avoid the accidental disengagement of the embedding portion 13a from the cavity S1.

[0077] In the following, several specific examples of specific implementation forms are introduced.

[0078] In combination with Figure 11 , and Figure 12 The schematic diagram of the cross section of the fixed portion 10a of the first specific example in the direction perpendicular to the buccal-lingual side line cooperating with the arch wire 202a.

[0079] In the first specific example, the perforated portion 11a only includes the first opening 111a located on the mesial surface 1211a of the circumferential portion 121a and the channel 131a located in the embedding portion 13a, that is, the other areas of the fixed portion body 12a at this time are closed areas, the channel 131a is a linear semi-penetrating channel (that is, the channel 131a does not completely penetrate the embedding portion 13a), and the insertion end 203a enters the channel 131a from the first opening 111a in the mesial-distal direction, at this time, the insertion end 203a can be prevented from slipping distally.

[0080] Here, when the insertion end 203a extends to the end of the channel 131a, the insertion end 203a and the embedding portion 13a achieve relative static, and the insertion end 203a cannot continue to move in the distal direction, at this time, the stop portion 2021 located at the arch wire 202 in the similar first implementation form can be cancelled, of course, the stop portion 2021 can also not be cancelled if necessary.

[0081] In the present specific example, the distance between the center of the first opening 111a and the tooth surface is 0.8mm-4mm, and the first opening 111a is a circular hole, an elliptical hole or a polygonal hole with chamfer.

[0082] In the present specific example, in combination with Figure 12 , the circumferential portion 121a and the appliance body 101a form an included angle β, and the included angle β can be 80°-120°, preferably, the included angle β between at least part of the circumferential portion 121a and the appliance body 101a is an acute angle.

[0083] Here, taking the acute angle β between the distal surface 1212a of the circumferential portion 121a and the appliance body 101a as an example, the included angle β is 70°-90°, at this time, when the embedding portion 13a is deformed by abnormal force, the embedding portion 13a will not slip in the cavity S1 towards the tooth surface.

[0084] In combination with Figure 13For the second specific example, the schematic view of the section of the fixed portion 10a in the direction perpendicular to the buccal-lingual connecting line direction cooperating with the arch wire 202a, for the convenience of description, the structures same or similar to the first specific example are numbered same or similar, and the same below.

[0085] The main difference between the second specific example and the first specific example is that the insertion end 203a of the second specific example comprises an insertion end body 2032a and a retaining structure 2031a protruding from the insertion end body 2032a, the retaining structure 2031a is a bending structure connecting the end of the insertion end body 2032a, at this time the channel 131a is an L-shaped channel, the setting of the retaining structure 2031a can further avoid the insertion end 203a continuing to move in the distal direction, thereby improving the limiting effect between the insertion end 203a and the fixed portion 10a.

[0086] The retaining structure 2031a is integrally formed with the insertion end body 2032a, for example, the retaining structure 2031a and the insertion end body 2032a can be formed at the same time by bending the end region of the insertion end 203a.

[0087] The other descriptions of the second specific example can refer to other specific examples, which will not be repeated here.

[0088] In combination Figure 14 For the third specific example, the schematic view of the section of the fixed portion 10a in the direction perpendicular to the buccal-lingual connecting line direction cooperating with the arch wire 202a.

[0089] The main difference between the third specific example and the first specific example is that the insertion end 203a of the third specific example comprises an insertion end body 2032a and a retaining structure 2031a protruding from the insertion end body 2032a, the retaining structure 2031a is a fence-shaped structure protruding from the insertion end body 2032a, at this time the channel 131a is a special-shaped structure with multiple branch channels, the setting of the retaining structure 2031a can further avoid the insertion end 203a continuing to move in the distal direction, thereby improving the limiting effect between the insertion end 203a and the fixed portion 10a.

[0090] The other descriptions of the third specific example can refer to other specific examples, which will not be repeated here.

[0091] In combination Figure 15 For the fourth specific example, the schematic view of the section of the fixed portion 10a in the direction perpendicular to the buccal-lingual connecting line direction cooperating with the arch wire 202a.

[0092] The fourth specific example mainly differs from the first specific example in that the through hole 11a of the fourth specific example comprises the first opening 111a located on the mesial surface 1211a of the peripheral portion 121a and the second opening 112a located on the distal surface 1212a, that is, the first opening 111a and the second opening 112a are arranged face to face at this time, and the insertion end 203a extends along the mesial-distal direction and sequentially passes through the first opening 111a, the passage 131a and the second opening 112a.

[0093] The fourth specific example can refer to other specific examples for other descriptions, which will not be repeated here.

[0094] In combination Figure 16 The schematic view of the cross section of the fixing portion 10a of the fifth specific example in the direction perpendicular to the buccal-lingual connecting line and cooperating with the arch wire 202a.

[0095] The fifth specific example mainly differs from the first specific example in that the through hole 11a of the fifth specific example comprises the first opening 111a located on the mesial surface 1211a of the peripheral portion 121a and the second opening 112a located on the distal surface 1212a, that is, the first opening 111a and the second opening 112a are arranged face to face at this time, and the insertion end 203a extends along the mesial-distal direction and sequentially passes through the first opening 111a, the passage 131a and the second opening 112a.

[0096] The insertion end 203a of the fifth specific example comprises the insertion end body 2032a and the retaining structure 2031a protruding from the insertion end body 2032a, the retaining structure 2031a is a columnar structure protruding from the insertion end body 2032a, and the retaining structure 2031a can further avoid the insertion end 203a from moving further in the distal direction, thereby improving the limiting effect between the insertion end 203a and the fixing portion 10a.

[0097] The fifth specific example can refer to other specific examples for other descriptions, which will not be repeated here.

[0098] In combination Figure 17 The schematic view of the cross section of the fixing portion 10a of the sixth specific example in the direction perpendicular to the buccal-lingual connecting line and cooperating with the arch wire 202a.

[0099] The sixth specific example mainly differs from the first specific example in that the through hole 11a of the sixth specific example comprises the first opening 111a located on the mesial surface 1211a of the peripheral portion 121a and the second opening 112a located on the distal surface 1212a, that is, the first opening 111a and the second opening 112a are arranged face to face at this time, and the insertion end 203a extends along the mesial-distal direction and sequentially passes through the first opening 111a, the passage 131a and the second opening 112a.

[0100] The sixth specific example further includes a stop portion 2021a at the archwire 202a, the stop portion 2021a is a bending region of the archwire 202a, when the insertion end 203a enters the cavity S1, the stop portion 2021a abuts against the mesial side of the peripheral portion 121a to limit the length of the archwire 202a entering the cavity S1, and the force acting on the archwire 202a can be transmitted to the fixing portion 10a through the cooperation of the stop portion 2021a and the mesial surface 1211a of the peripheral portion 121a.

[0101] The other descriptions of the sixth specific example can refer to the other specific examples, which will not be repeated here.

[0102] In combination with Figure 18 , the cross section of the fixing portion 10a of the seventh specific example in the direction perpendicular to the buccal-lingual side connecting line cooperates with the archwire 202a.

[0103] The main difference between the seventh specific example and the first specific example is that the perforated portion 11a of the seventh specific example includes the first opening 111a at the mesial surface 1211a of the peripheral portion 121a and the second opening 112a at the top portion 122a, that is, the first opening 111a and the second opening 112a are adjacent to each other at this time, the channel 131a is L-shaped, the insertion end 203a is bent after passing through the first opening 111a and then passes through the second opening 112a, and the second opening 112a can further limit the insertion end 203a.

[0104] The end of the insertion end 203a is bent, and the part of the insertion end 203a extending to the second opening 112a can also be regarded as the retaining structure as described above.

[0105] Optionally, the second opening 112a is a blind hole, which can avoid the insertion end 203a penetrating out of the top portion 122a to stimulate the oral mucosa tissue, of course, the second opening 112a can also be a through hole, and the insertion end 203a penetrating out of the top portion 122a can be bent and closely attached to the top portion 122a.

[0106] Of course, in other specific examples, the second opening 112a can also be located at another surface of the peripheral portion 121a connected to the mesial surface 1211a, for example, the second opening 112a is located at the surface of the peripheral portion 121a close to the gum.

[0107] The other descriptions of the seventh specific example can refer to the other specific examples, which will not be repeated here.

[0108] The second implementation form further provides a forming method of the dental assembly 300a, in combination with Figure 19 , the forming method includes the following steps:

[0109] Obtain the dental instrument 100a with the cavity S1 and the first opening 111a (or the first opening 111a and the second opening 112a);

[0110] Insert the free end of the arch wire 202a of the functional piece 200a into the cavity S1 through the first opening 111a;

[0111] Fill the resin in the cavity S1;

[0112] Cure the resin by light to obtain the dental assembly 300a.

[0113] Here, the resin after light curing forms the embedding part 13a as described above, and the part in the embedding part 13a corresponding to the insertion end 203a is the channel 131a.

[0114] It can be understood that since the embedding part 13a is post-formed, the shape of the insertion end 203a at this time is not constrained by the embedding part 13a, and the insertion end 203a can form the retention structure 2031a as described above, or in other words, the insertion end 203a at this time can be bent according to actual needs, so that the cooperation strength between the insertion end 203a and the embedding part 13a can be improved, and the movement of the insertion end 203a in the distal direction can be constrained (that is, the stop part 2021 in the first implementation form can be omitted).

[0115] In summary, the insertion end 203a includes the insertion end body 2032a and the retention structure 2031a protruding from the insertion end body 2032a, and the retention structure 2031a and the embedding part 13a are limited to each other, thereby improving the limiting effect between the insertion end 203a and the fixing part 10a.

[0116] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

[0117] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation forms of the present application, and they are not used to limit the protection scope of the present application, and any equivalent implementation forms or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A dental assembly, characterized in that, The application relates to a dental orthodontic appliance and a functional part connected thereto, wherein the dental orthodontic appliance comprises an appliance body with a cavity for accommodating teeth, and a fixing part protruding from the appliance body towards a side away from the cavity, the fixing part comprising a fixing part body and an embedded part, the fixing part body being provided with a cavity communicating with the cavity, and the embedded part being located in the cavity, the fixing part being provided with a through hole comprising a first opening penetrating through the fixing part body and a channel located in the embedded part and communicating with the first opening, and the functional part comprising an insertion end comprising an insertion end body and a retaining structure protruding from the insertion end body, the insertion end penetrating through the first opening and extending into the channel, and the retaining structure being limited with the embedded part.

2. The dental assembly of claim 1, wherein, An inner contour of the channel and an outer contour of the insertion end are matched with each other.

3. The dental assembly of claim 1, wherein, The embedded part is in full contact with the insertion end.

4. The dental assembly of claim 1, wherein, The embedded part is formed by a material filled in the cavity.

5. The dental assembly of claim 1, wherein, The insertion end body extends along a first direction, the retaining structure extends along a second direction, and an included angle between the first direction and the second direction is an acute angle, a right angle or an obtuse angle.

6. The dental assembly of claim 1, wherein, The retaining structure is a bending structure connecting a terminal end of the insertion end body, and the retaining structure is integrally formed with the insertion end body.

7. The dental assembly of claim 1, wherein, The retaining structure is a fence-shaped structure protruding from the insertion end body.

8. The dental assembly of claim 1, wherein, The through hole further comprises a second opening penetrating through the fixing part body, the channel communicates with the first opening and the second opening, and the insertion end sequentially penetrates through the first opening, the channel and the second opening.

9. The dental assembly of claim 1, wherein, The functional part comprises an arch wire connected with the dental orthodontic appliance, and the insertion end is a free end of the arch wire.

10. The dental assembly of claim 1, wherein, The functional part is an extraoral arch, a lip bumper, a downforce auxiliary arch or an expansion auxiliary arch.

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