Dental instrument and dental assembly

Abstract

The dental instrument comprises an instrument body with a cavity, a fixing part and a sleeve, the fixing part protrudes out of the instrument body towards one side far away from the cavity, the fixing part comprises a fixing part body and a perforation part, the fixing part body is enclosed to form a cavity communicated with the cavity, and the perforation part is communicated with the cavity. The perforating part comprises a first opening penetrating through the fixing part body, the sleeve is provided with a hole with at least one open end, the sleeve penetrates through the first opening and extends to the cavity, and the fixing part exposes the opening. According to the utility model, the sleeve is matched with the fixing part, and different types of functional parts can be conveniently adapted by replacing different types of sleeves.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooth correction technical field especially, relate to a kind of dental instrument and dental assembly. BACKGROUND

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

[0003] The current interface structure is complex, and cannot be adapted to various external functional parts. INVENTION CONTENTS

[0004] One of the purposes of the utility model is to provide a kind of dental instrument and dental assembly, which can be adapted to various functional parts by sleeve.

[0005] The utility model embodiment provides a kind of dental instrument, including the instrument body with cavity, the fixed part and sleeve of the instrument body protruding to the side away from the cavity, the fixed part includes fixed part body and perforated part, the fixed part body is surrounded and is formed cavity communicating with the cavity, the perforated part includes the first aperture passing through the fixed part body, the sleeve has at least one end open hole, the sleeve passes through the first aperture and extends to the cavity, and the fixed part exposes the open.

[0006] Optionally, the perforated part further includes the second aperture passing through the fixed part body, and the sleeve sequentially passes through the first aperture, the cavity and the second aperture.

[0007] Optionally, one end of the sleeve has step portion protruding in the direction away from the hole, and the fixed part body includes resistance portion arranged around the first aperture, and the surface of the resistance portion away from the cavity is matched with the step portion to limit the movement of the sleeve in the direction of the cavity.

[0008] Optionally, one end of the hole is open, and the other end is closed, or both ends of the hole are open.

[0009] Optionally, the sleeve and the fixed part are detachably connected.

[0010] Optionally, the fixed part further includes embedded part in the cavity, and the perforated part further includes channel in the embedded part, and the sleeve passes through the first aperture and extends to the channel.

[0011] Optionally, the perforated portion further comprises a second opening hole penetrating the fixed portion body, and the channel penetrates the embedded portion and communicates the first opening hole and the second opening hole.

[0012] Optionally, one end of the sleeve away from the first opening hole is located in the channel, or the sleeve extends to the second opening hole.

[0013] Optionally, the embedded portion is formed by a material filled in the cavity.

[0014] Optionally, the embedded portion is a pre-formed member, and the channel is a pre-formed structure of the embedded portion.

[0015] Optionally, the dental instrument is an orthodontic appliance, the instrument body is an appliance body having a cavity for accommodating teeth, and the fixed portion is located on a buccal surface or a lingual surface of the appliance body.

[0016] Optionally, the dental instrument is an anchorage pin guide plate, the instrument body comprises a guide plate body having a cavity for accommodating teeth and an extension area formed by extending the guide plate body towards a gum area, and the fixed portion is located in the extension area.

[0017] Optionally, the fixed portion body comprises a peripheral portion and a top portion connected to each other, the peripheral portion is connected to the instrument body, the peripheral portion and the top portion surround to form the cavity, the first opening hole is located in the top portion, and the hole communicates with the gum area.

[0018] The utility model embodiment provides a dental assembly which comprises a functional member and the dental instrument according to any one of the above technical solutions, and the functional member comprises an insertion end which penetrates the opening and extends to the hole.

[0019] Optionally, the dental instrument is an orthodontic appliance, the instrument body is an appliance body having a cavity for accommodating teeth, the fixed portion is located on a buccal surface or a lingual surface of the appliance body, the functional member comprises an arch wire connected to the orthodontic appliance, and the insertion end is a free end of the arch wire.

[0020] Optionally, the free end of the arch wire enters the hole through the opening, the dental assembly further comprises a stop portion connected to the insertion end, a surrounding area of the opening cooperates with the stop portion to limit movement of the arch wire towards the hole, the stop portion is a bending area of the arch wire, or the stop portion is a block structure sleeved on the arch wire.

[0021] Optionally, the functional member is an extra-oral arch, a lip bumper, a lower arch auxiliary arch or an expansion arch auxiliary arch.

[0022] Optionally, the fixed part corresponds to a posterior tooth area, and the dental assembly comprises two fixed parts located in two posterior tooth areas of the same dental arch, and the functional part comprises two insertion ends matched with the two fixed parts.

[0023] Optionally, in each correction step, the spatial relative position of the fixed part to the target point remains unchanged.

[0024] Optionally, the dental instrument is an anchorage pin guide plate, the instrument body comprises a guide plate body having a cavity accommodating teeth and an extension area, the extension area is an area formed by the extension of the guide plate body towards the gum area, the fixed part is located in the extension area, the functional part is an anchorage pin, and the insertion end is an implanting part of the anchorage pin.

[0025] Compared with the prior art, the sleeve and the fixed part of the embodiment of the utility model cooperate with each other, different types of sleeves are replaced, and different types of functional parts are conveniently adapted. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figures 1 to 7 is a plurality of schematic diagrams of the dental assembly (the dental instrument is a dental orthodontic appliance) of the embodiment of the utility model;

[0027] Figure 8 and Figure 9 is a schematic diagram of the dental assembly (the dental instrument is an anchorage pin guide plate) of the embodiment of the utility model;

[0028] Figure 10 and Figure 11 is a schematic diagram of the dental assembly of the first implementation form of the utility model;

[0029] Figures 12 to 15 is a sectional view of the fixed part (cooperating with the insertion end) of the first implementation form of the utility model;

[0030] Figure 16 and Figure 17 is a schematic diagram of the dental assembly of the second implementation form of the utility model;

[0031] Figures 18 to 20 is a sectional view of the fixed part (cooperating with the insertion end) of the second implementation form of the utility model;

[0032] Figure 21 and Figure 22 is a schematic diagram of the dental assembly of the third implementation form of the utility model;

[0033] Figure 23 and Figure 24It is the fourth implementation form of the dental assembly of the utility model. DETAILED DESCRIPTION

[0034] The utility model will be described in detail below in combination with the specific embodiments shown in the drawings. However, these embodiments do not limit the utility model, and the changes in structure, method or function made by those skilled in the art based on these embodiments are all included in the protection scope of the utility model.

[0035] In combination Figures 1 to 7 It is the schematic diagram of the dental assembly 300 of the utility model embodiment.

[0036] The dental assembly 300 comprises the functional piece 200 and the dental instrument 100.

[0037] The dental instrument 100 comprises the instrument body 101 with the cavity S and the fixing part 10 protruding the instrument body 101 towards the side away from the cavity S.

[0038] The fixing part 10 has the perforated part 11, and the insertion end 203 of the functional piece 200 is limited in the perforated part 11, so that the mutual connection of the dental instrument 100 and the functional piece 200 can be realized, and the position limitation of the functional piece 200 can be realized by limiting the insertion end 203 in the perforated part 11.

[0039] The dental instrument 100 can be a dental orthodontic appliance, an anchorage nail guide plate and the like.

[0040] In one application scenario of the utility model, in combination Figures 1 to 7 Taking the dental instrument 100 as the dental orthodontic appliance 100 as an example for illustration.

[0041] The dental orthodontic appliance 100 can be a clear aligner for example, and the functional piece 200 can be an arch wire structure for example, but is not limited thereto.

[0042] The clear aligner can be a shell-shaped structure made of a high polymer material.

[0043] The arch wire structure is an extraoral arch, a lip bumper, a down auxiliary arch or an expansion auxiliary arch and the like for example, such as Figure 1 and Figure 2 It is shown that the functional piece 200 is a lip bumper, such as Figure 3 It is shown that the functional piece 200 is an extraoral arch, such as Figure 4 It is shown that the functional piece 200 is a down auxiliary arch, such as Figure 5 and Figure 6 It is shown that the functional piece 200 is an expansion auxiliary arch.

[0044] Figure 1 and Figure 2The shown lip bumper includes an acting part 201 arranged corresponding to the anterior tooth region and an arch wire 202 connected to the two sides of the acting part 201 and extending towards the distal direction, the acting part 201 contacts the upper lip to interact, and the arch wire 202 is connected with the two fixed parts 10 of the buccal surface A1 of the dental orthodontic appliance 100.

[0045] Figure 3 The shown extraoral bow includes an arch wire 202, and the arch wire 202 is connected with the two fixed parts 10 of the buccal surface A1 of the dental orthodontic appliance 100.

[0046] Figure 4 The shown downforce auxiliary bow includes an arch wire 202, and the arch wire 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 arch wire 202 abuts against the traction buckle 500.

[0047] Figure 5 The shown expansion auxiliary bow includes an arch wire 202, and the arch wire 202 is connected with the two fixed parts 10 of the lingual surface A2 of the dental orthodontic appliance 100.

[0048] Figure 6 The shown expansion auxiliary bow includes an arch wire 202, and the middle part of the arch wire 202 passes through the fixed part 10 of the lingual surface A2 of the dental orthodontic appliance 100, and the two ends of the arch wire 202 pass through the two slot-shaped structures 600 of the lingual surface A2 of the dental orthodontic appliance 100.

[0049] The dental orthodontic appliance 100 includes an appliance body 101 having a cavity S accommodating teeth, and a fixed part 10 protruding from the appliance body 101 to a 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 surface A1 or the lingual surface A2 of the appliance body 101.

[0050] Taking the lip bumper as an example, the fixed part 10 is arranged corresponding to the buccal surface A1 of the posterior tooth region, the dental assembly 300 includes two fixed parts 10 located on the same dental arch of two posterior tooth regions, and the functional piece 200 includes two insertion ends 203 matched with the two fixed parts 10 one by one.

[0051] The two arch wires 202 connected with the acting part 201 of the lip bumper extend towards two distal directions on the left and right sides respectively, the two free ends of the two arch wires 202 away from the lip bumper are defined as 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 piece 200 and the dental orthodontic appliance 100.

[0052] In actual application, when the upper lip interacts with the action part 201 of the lip stop, 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 orthodontic appliance 100 to achieve molar distalization of the posterior dental area.

[0053] 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, 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 surface A2), and the entrance of the through hole part 11 can also be located at other positions.

[0054] The insertion end 203 enters the fixed part 10 from the through hole 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 orthodontic appliance 100.

[0055] Optionally, in each treatment step, the spatial relative position of the fixed part 10 and the target point remains unchanged.

[0056] The target point refers to a point that does not move in position during the treatment process, for example, the target point is a point on the upper jaw tissue or a point in the anterior dental area, or the target point is a virtual point in the software design process, for example, a point corresponding to the nose on the CBCT, etc.

[0057] In each treatment step, the spatial relative position of the fixed part 10 and 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.

[0058] At this time, the combined part (i.e. the fixed part 10) of the functional part 200 and the orthodontic appliance 100 is moving relative to the teeth to be treated (the teeth in the posterior dental area).

[0059] 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 orthodontic assembly 300 further comprises a limiting part 2021 connected to the insertion end 203, and the surrounding area of the entrance cooperates with the limiting 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 continuous movement of the arch wire 202 in the distal direction to excessively enter 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.

[0060] In addition, at least one U-shaped bending part 2022 is formed on the arch wire 202, the U-shaped bending part 2022 is located between the limiting 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.

[0061] Optionally, the dental orthodontic appliance 100 further comprises a reinforcing portion 20 arranged adjacent to the fixing portion 10, the reinforcing portion 20 protrudes out of the appliance body 101 towards a side away from the cavity S, and the reinforcing portion 20 is formed with a receiving cavity S2 for accommodating a dental surface accessory, and the height of the reinforcing portion 20 is less than the height of the fixing portion 10.

[0062] 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 portion 20 cooperates with the accessory, so that the retention capability between the dental orthodontic appliance 100 and the teeth under force can be enhanced, and the dental orthodontic appliance 100 is prevented from being detached, and the height of the reinforcing portion 20 is made small to avoid the reinforcing portion 20 from interfering with the inside of the oral cavity or the functional part 200 too much.

[0063] Since the functional part 200 will exert force on the fixing portion 10, the area of the appliance body 101 connected to the fixing portion 10 is prone to be separated from the dental surface, and in severe cases, the entire dental orthodontic appliance 100 can be detached, so the reinforcing portion 20 can be arranged adjacent to the fixing portion 10, as shown in Figure 1 and Figure 2 , the reinforcing portion 20 is arranged on the left and right sides and the opposite side of the fixing portion 10.

[0064] In another application scenario of the present application, the dental appliance 100 is taken as an example for description in combination with Figure 8 and Figure 9 .

[0065] The functional part 200 can be, for example, an anchorage pin 200, but is not limited thereto.

[0066] The anchorage pin guide plate 100 comprises a guide plate body 1011 having a cavity S for accommodating a tooth and an extension region 1012, the extension region 1012 is a region formed by the guide plate body 1011 extending towards the gingival region A3, that is, the appliance body 101 at this time comprises the guide plate body 1011 and the extension region 1012 connected together, and the fixing portion 10 is located on the extension region 1012, specifically, the fixing portion 10 is located on a side of the extension region 1012 away from the gingival region A3.

[0067] The fixing portion 10 has a perforated portion 11, and the insertion end 203 of the anchorage pin 200 is limited in the perforated portion 11, the insertion end 203 is an implanting portion of the lower end of the anchorage pin 200, and the insertion end 203 penetrates through the perforated portion 11 and is implanted into the gingival region A3.

[0068] The extension direction of the perforated portion 11 can be designed according to the implanting direction required by the anchorage pin 200.

[0069] When the insertion end 203 of the anchorage pin 200 enters the through hole 11, the through hole 11 can constrain the implantation direction of the anchorage pin 200 so that the anchorage pin 200 is implanted along the extension direction of the through hole 11 to the gingival area A3, so that the implantation direction of the anchorage pin 200 can be better controlled.

[0070] Optionally, the anchorage pin guide plate 100 further comprises a reinforcing portion 20 arranged adjacent to the fixing portion 10, the reinforcing portion 20 protrudes the extension region 1012 or the guide plate body 1011 away from the cavity S, and the reinforcing portion 20 is formed with a receiving cavity S2 for accommodating a dental surface accessory, and the height of the reinforcing portion 20 is less than the height of the fixing portion 10.

[0071] Optionally, the reinforcing portion 20 is arranged in the region of the guide plate body 1011, and the accessory can be pre-added on the dental surface, and when the anchorage pin guide plate 100 is worn, the receiving cavity S2 of the reinforcing portion 20 cooperates with the accessory, so that the retention capability between the anchorage pin guide plate 100 and the teeth under stress can be enhanced, and the reinforcing portion 20 is prevented from being off the teeth, and the height of the reinforcing portion 20 is made small to avoid the reinforcing portion 20 from interfering with the inside of the oral cavity or the functional part 200 too much.

[0072] Next, various implementation forms of the fixing portion 10 in different application scenarios are introduced.

[0073] In combination with Figures 10 to 15 In the first implementation form, the dental assembly 300f comprises a dental instrument 100f and a functional part 200f, the dental instrument 100f is a dental orthodontic appliance 100f, and the functional part 200f is a lip bumper.

[0074] In the first implementation form, the dental orthodontic appliance 100f comprises an appliance body 101f having a cavity S for accommodating teeth and a fixing portion 10f protruding the appliance body 101f away from the cavity S, the fixing portion 10f comprises a fixing portion body 12f and a through hole 11f for inserting an insertion end 203f of the functional part 200f.

[0075] The fixing portion 10f is located on the buccal surface A1 or the lingual surface A2 of the appliance body 101f.

[0076] The fixing portion body 12f surrounds to form a cavity S1 communicating with the cavity S.

[0077] Optionally, the fixing portion body 12f comprises a peripheral portion 121f and a top portion 122f connected in sequence, the peripheral portion 121f is connected to the appliance body 101f, and the peripheral portion 121f and the top portion 122f surround to form the cavity S1.

[0078] The fixing part body 12f is substantially in a cap shape, a hollow structure in the middle of the fixing part body 12f forms a cavity S1, the fixing part body 12f is integrally formed with the appliance body 101f, the forming process of the fixing part body 12f is simple, and the fixing part body 12f is stably matched with the appliance body 101f.

[0079] Optionally, the perforated part 11f comprises a first opening hole 111f penetrating the fixing part body 12f, and the first opening hole 111f is located at the peripheral part 121f or the top part 122f.

[0080] The dental orthodontic appliance 100f further comprises a sleeve 14f having a hole 141f with at least one open end, the sleeve 14f penetrates the first opening hole 111f and extends to the cavity S1, the fixing part 10f exposes the open end, and the insertion end 203f is inserted into the hole 141f through the open end.

[0081] The “hole 141f with at least one open end” means that the hole 141f penetrates at least one end surface of the sleeve 14f, and the insertion direction of the sleeve 14f is parallel to the extension direction of the hole 141f, after the sleeve 14f penetrates the first opening hole 111f and extends to the cavity S1, the open end of the hole 141f is located on the outside so as to insert the insertion end 203f.

[0082] The sleeve 14f is detachably connected with the fixing part 10f, that is, the sleeve 14f is detachably mounted to the fixing part body 12f, different types of sleeves 14f can be mounted to the same fixing part body 12f, and by replacing different types of sleeves 14f, it is convenient to adapt to different types of functional parts.

[0083] For example, by replacing sleeves 14f with different inner diameters, it is convenient to adapt to archwires 202f with different diameters.

[0084] Optionally, the perforated part 11f further comprises a second opening hole 112f penetrating the fixing part body 12f, and the sleeve 14f penetrates the first opening hole 111f, the cavity S1 and the second opening hole 112f in sequence, so that the stability of the cooperation between the sleeve 14f and the fixing part body 12f can be improved.

[0085] The line connecting the first opening hole 111f and the second opening hole 112f is parallel to the mesiodistal direction, and the sleeve 14f also extends along the mesiodistal direction.

[0086] Optionally, one end of the sleeve 14f has a step part 142f protruding away from the hole 141f, and the fixing part body 12f comprises a blocking part 125f arranged around the first opening hole 111f, and a surface of the blocking part 125f away from the cavity S1 cooperates with the step part 142f to limit the movement of the sleeve 14f towards the cavity S1.

[0087] The side surface of the resisting portion 125f away from the cavity S1 is the mesial side surface 1211f of the fixed portion body 12f, and the step portion 142f is located outside the cavity S1. The step portion 142f is a flange structure at the end of the sleeve 14f, and the step portion 142f abuts against the mesial side surface 1211f to limit the movement of the sleeve 14f in the distal direction, and the step portion 142f is arranged around the opening.

[0088] Next, several specific examples of the first implementation form are introduced.

[0089] In combination Figure 12 The schematic view of the cross section of the fixed portion 10f of the first specific example in the direction perpendicular to the buccal-lingual connecting line and cooperating with the arch wire 202f.

[0090] In the first specific example, the perforated portion 11f only includes the first opening 111f on the mesial side surface 1211f of the peripheral portion 121f, that is, other regions of the fixed portion body 12f at this time are closed regions.

[0091] The hole 141f at the sleeve 14f is open at one end and closed at the other end, that is, the hole 141f only penetrates the mesial end surface of the sleeve 14f and does not penetrate the distal end surface of the sleeve 14f.

[0092] The sleeve 14f enters the cavity S1 along the mesial-distal direction from the first opening 111f, and the insertion end 203f of the arch wire 202f is inserted into the hole 141f of the sleeve 14f from the open mesial end surface. When the insertion end 203f abuts against the distal end surface of the closed hole 141f, the stop of the arch wire 202f can be realized.

[0093] In combination Figure 13 The schematic view of the cross section of the fixed portion 10f of the second specific example in the direction perpendicular to the buccal-lingual connecting line and cooperating with the arch wire 202f.

[0094] In the second specific example, the perforated portion 11f only includes the first opening 111f on the mesial side surface 1211f of the peripheral portion 121f, that is, other regions of the fixed portion body 12f at this time are closed regions.

[0095] The hole 141f at the sleeve 14f is open at both ends, that is, the hole 141f penetrates the mesial end surface and the distal end surface of the sleeve 14f.

[0096] The dental assembly 300f comprises a stop portion 2021f connected to the insertion end 203f, the stop portion 2021f is a bending region of the archwire 202f, when the insertion end 203f enters the hole 141f, the stop portion 2021f abuts against the mesial side of the step portion 142f to limit the length of the archwire 202f entering the cavity S1, and the force applied to the archwire 202f can be transmitted to the fixing portion 10f through the cooperation of the stop portion 2021f and the mesial side of the step portion 142f.

[0097] Other descriptions of the second specific example can refer to other specific examples, which will not be repeated here.

[0098] In combination Figure 14 The schematic view of the cross section of the fixing portion 10f of the third specific example in the direction perpendicular to the buccal-lingual line cooperating with the archwire 202f.

[0099] The main difference between the third specific example and the second specific example is that the through hole portion 11f of the third specific example comprises a first opening 111f located on the mesial surface 1211f of the peripheral portion 121f and a second opening 112f located on the distal surface 1212f, the line connecting the first opening 111f and the second opening 112f is parallel to the mesial-distal direction, and the sleeve 14f passes through the first opening 111f, the cavity S1 and the second opening 112f in sequence.

[0100] The insertion end 203f is limited to continue moving in the distal direction by forming a stop portion 2021f near the insertion end 203f, the stop portion 2021f is a bending region of the archwire 202f.

[0101] Optionally, the second opening 112f is a through hole, and in other specific examples, the second opening 112f can also be a blind hole.

[0102] Other descriptions of the third specific example can refer to other specific examples, which will not be repeated here.

[0103] In combination Figure 15 The schematic view of the cross section of the fixing portion 10f of the fourth specific example in the direction perpendicular to the buccal-lingual line cooperating with the archwire 202f.

[0104] The main difference between the fourth specific example and the third specific example is that the stop portion 2021f of the fourth specific example is a block structure sleeved on the archwire 202f.

[0105] Other descriptions of the fourth specific example can refer to other specific examples, which will not be repeated here.

[0106] In combination Figures 16 to 20In a second implementation form, the dental assembly 300g comprises the dental appliance 100g and the functional piece 200g, the dental appliance 100g is an orthodontic appliance 100g, and the functional piece 200g is a lip bumper.

[0107] In the second implementation form, the orthodontic appliance 100g comprises the appliance body 101g having the cavity S for accommodating the teeth, and the fixing portion 10g protruding from the appliance body 101g towards a side away from the cavity S, the fixing portion 10g comprises the perforated portion 11g for inserting the insertion end 203g of the functional piece 200g.

[0108] The fixing portion 10g is located on the buccal surface A1 or the lingual surface A2 of the appliance body 101g.

[0109] The fixing portion 10g comprises the fixing portion body 12g and the embedding portion 13g.

[0110] The fixing portion body 12g surrounds to form the cavity S1 communicating with the cavity S, and the embedding portion 13g is a pre-formed piece installed in the cavity S1, but the embedding portion 13g can also be in other forms, for example, the embedding portion 13g is formed by a material filled in the cavity S1.

[0111] Optionally, the fixing portion body 12g comprises the peripheral portion 121g and the top portion 122g connected with each other, the peripheral portion 121g is connected with the appliance body 101g, and the peripheral portion 121g and the top portion 122g surround to form the cavity S1.

[0112] The fixing portion body 12g is substantially in a cap structure, the hollow structure in the middle of the fixing portion body 12g forms the cavity S1, the fixing portion body 12g is integrally formed with the extended area 1012g, the forming process of the fixing portion body 12g is simple, and the fixing portion body 12g cooperates with the extended area 1012g stably.

[0113] Optionally, the perforated portion 11g comprises the first opening 111g penetrating through the fixing portion body 12g and the channel 131g located in the embedding portion 13g and communicating with the first opening 111g, and the first opening 111g is located in the peripheral portion 121g or the top portion 122g.

[0114] The overall strength of the fixing portion 10g is improved by adding the embedding portion 13g, and the deformation resistance of the fixing portion 10g under the action of force is improved.

[0115] The orthodontic appliance 100g further comprises the sleeve 14g, the sleeve 14g has the hole 141g with at least one open end, the sleeve 14g penetrates through the first opening 111g and extends to the channel 131g, the fixing portion 10g exposes the open end, and the insertion end 203g is inserted into the hole 141g through the open end.

[0116] The hole 141g is open at least at one end, which means that the hole 141g extends through at least one end surface of the sleeve 14g, and the insertion direction of the sleeve 14g is parallel to the extension direction of the hole 141g. When the sleeve 14g is inserted through the first opening 111g and extends into the channel 131g, the open end of the hole 141g is located on the outside, and the insertion end 203g is inserted.

[0117] Optionally, the channel 131g is linear, which facilitates the extension of the sleeve 14g into the channel 131g, but is not limited thereto.

[0118] When the embedded portion 13g is a pre-formed member installed in the cavity S1, the channel 131g is pre-formed in the structure of the embedded portion 13g. The pre-formed member can improve the strength of the embedded portion 13g and facilitate installation and use.

[0119] The sleeve 14g is detachably connected to the fixed portion 10g, that is, the sleeve 14g is detachably inserted into the first opening 111g and the channel 131g. Different types of sleeves 14g can be installed in the same fixed portion 10g. By replacing sleeves 14g with different inner diameters, it is convenient to adapt to archwires 202g with different diameters.

[0120] When the embedded portion 13g is formed by a material filled in the cavity S1, the embedded portion 13g can be composed of a resin material. The sleeve 14g with the desired inner diameter can be inserted into the cavity S1, and then the embedded portion 13g can be formed by filling resin. In this way, the embedded portion 13g can be formed by light curing of the resin to fix the sleeve 14g and the fixed portion 10g together.

[0121] Optionally, the perforated portion 11g further comprises a second opening 112g extending through the fixed portion body 12g, and the channel 131g extends through the embedded portion 13g. The channel 131g communicates the first opening 111g and the second opening 112g.

[0122] The line connecting the first opening 111g, the channel 131g, and the second opening 112g is parallel to the mesiodistal direction, and the sleeve 14g also extends along the mesiodistal direction.

[0123] Optionally, the end of the sleeve 14g away from the first opening 111g is located in the channel 131g, that is, the sleeve 14g extends through the first opening 111g and into the channel 131g, and the sleeve 14g does not extend to the second opening 112g.

[0124] Alternatively, the sleeve 14g extends to the second opening 112g, that is, the sleeve sequentially extends through the first opening 111g, the channel 131g, and the second opening 112g.

[0125] Optionally, one end of the sleeve 14g has a step portion 142g protruding in a direction away from the hole 141g, and the fixing portion body 12g comprises a blocking portion 125g arranged around the first opening 111g, and a side surface of the blocking portion 125g away from the cavity S1 cooperates with the step portion 142g to limit the movement of the sleeve 14g in a direction towards the cavity S1.

[0126] The side surface of the blocking portion 125g away from the cavity S1 is the mesial side surface 1211g of the fixing portion body 12g, the step portion 142g is located outside the cavity S1, the step portion 142g is a flange structure of the end of the sleeve 14g, the step portion 142g and the mesial side surface 1211g abut each other to limit the continuous movement of the sleeve 14g in the mesial direction, and the step portion 142g is arranged around the opening.

[0127] Optionally, the outer wall of the sleeve 14g forms a protruding portion, and the protruding portion and the embedding portion 13g are limited relative to each other.

[0128] The protruding portion is located inside the cavity S1, and the mutual limitation of the protruding portion and the embedding portion 13g can limit the continuous movement of the sleeve 14g in the mesial direction, and can prevent the sleeve 14g from being separated from the embedding portion 13g.

[0129] Next, several specific examples of the second implementation form are introduced.

[0130] In combination Figure 18 The cross section of the fixing portion 10g of the first specific example in the direction perpendicular to the buccal-lingual side connection line cooperates with the arch wire 202g.

[0131] In the first specific example, the perforated portion 11g only comprises the first opening 111g located on the mesial side surface 1211g of the peripheral portion 121g and the channel 131g located in the embedding portion 13b, that is, other regions of the fixing portion body 12g at this time are closed regions, the channel 131g is a straight half-penetrating channel (that is, the channel 131g does not completely penetrate the embedding portion 13g), the sleeve 14g enters the channel 131g from the first opening 111g in the mesial-distal direction, the insertion end 203g is inserted into the hole 141g of the sleeve 14g, and at this time, the mesial side of the hole 141g is closed by the embedding portion 13g.

[0132] The dental assembly 300g comprises a stop portion 2021g connected to the insertion end 203g, the stop portion 2021g is a bending region of the arch wire 202g, after the insertion end 203g enters the hole 141g, the stop portion 2021g and the mesial side of the step portion 142g abut each other to limit the length of the arch wire 202g entering the cavity S1, and the force acting on the arch wire 202g can be transmitted to the fixing portion 10g through the cooperation of the stop portion 2021g and the mesial side of the step portion 142g.

[0133] In combinationFigure 19 A schematic view of a cross section of the fixed portion 10g of the second specific example in a direction perpendicular to the buccolingual direction in cooperation with the archwire 202g.

[0134] The main difference between the second specific example and the first specific example is that the perforated portion 11g of the second specific example further comprises a second opening 112g located on the distal surface 1212g of the peripheral portion 121g, the channel 131g is a straight channel, and the connecting line of the first opening 111g, the channel 131g and the second opening 112g is parallel to the mesiodistal direction, and the sleeve 14g passes through the first opening 111g, the channel 131g and the second opening 112g in sequence.

[0135] The insertion end 203g is limited to continue moving in the distal direction by forming a stop portion 2021g in the area close to the insertion end 203g, and the stop portion 2021g is a bending area of the archwire 202g.

[0136] Here, the second opening 112g is a through hole, and in other specific examples, the second opening 112g can also be a blind hole.

[0137] The other descriptions of the second specific example can refer to those of other specific examples, which will not be repeated here.

[0138] In combination Figure 20 A schematic view of a cross section of the fixed portion 10g of the third specific example in a direction perpendicular to the buccolingual direction in cooperation with the archwire 202g.

[0139] The main difference between the third specific example and the second specific example is that the stop portion 2021g of the third specific example is a block structure sleeved on the archwire 202g.

[0140] The other descriptions of the third specific example can refer to those of other specific examples, which will not be repeated here.

[0141] The other descriptions of the second implementation form can refer to those of other implementation forms, which will not be repeated here.

[0142] In combination Figure 21 And Figure 22 In the third implementation form, the dental assembly 300h is a bracket guide assembly 300h, and the bracket guide assembly 300h comprises a bracket guide 100h and a functional piece 200h, and the functional piece 200h is a bracket 200h.

[0143] In a third implementation form, the anchorage pin guide 100h comprises a guide body 1011h having a cavity S for accommodating a tooth, and an extension area 1012h formed by extending the guide body 1011h towards the gingival area A3, i.e., the instrument body 101h at this time comprises the guide body 1011h and the extension area 1012h connected together, the fixing part 10h is located at the extension area 1012h, and specifically, the fixing part 10h is located at a side of the extension area 1012h away from the gingival area A3, and the fixing part 10h has a perforated part 11h for implanting an insertion end 203h of the anchorage pin 200h, and the insertion end 203h is an implanting part at a lower end of the anchorage pin 200h.

[0144] The fixing part 10h comprises a fixing part body 12h.

[0145] The fixing part body 12h surrounds to form a cavity S1 communicating with the cavity S.

[0146] Optionally, the fixing part body 12h comprises a peripheral part 121h and a top part 122h connected together, the peripheral part 121h is connected to the extension area 1012h, and the peripheral part 121h and the top part 122h surround to form the cavity S1.

[0147] The fixing part body 12h is substantially in a cap-shaped structure, a hollow structure at a middle part of the fixing part body 12h forms the cavity S1, the fixing part body 12h is integrally formed with the extension area 1012h, the forming process of the fixing part body 12h is simple, and the fixing part body 12h cooperates with the extension area 1012h stably.

[0148] Optionally, the perforated part 11h comprises a first opening 111h penetrating through the fixing part body 12h, and the first opening 111h is located at the top part 122h.

[0149] The anchorage pin guide 100h further comprises a sleeve 14h having a hole 141h penetrating through the sleeve 14h, the hole 141h communicates with the gingival area A3, the sleeve 14h penetrates through the first opening 111h and extends to the cavity S1, and an implanting part of the anchorage pin 200h penetrates through the hole 141h and is implanted into the gingival area A3.

[0150] The sleeve 14h is detachably connected with the fixing part 10h, i.e., the sleeve 14h is detachably installed to the fixing part body 12h, different types of sleeves 14h can be installed to the same fixing part body 12h, and by replacing sleeves 14h with different inner diameters, different diameters of anchorage pins 200h can be conveniently adapted.

[0151] The fixing part body 12h cooperates with the sleeve 14h to improve the overall strength, the hole 141h of the sleeve 14h can provide a guiding effect for implanting the anchorage pin 200h, and thus the precision of implanting the anchorage pin 200h is improved.

[0152] Optionally, one end of the sleeve 14h has a stepped portion 142h protruding away from the hole 141h, and the fixing portion body 12h comprises a blocking portion 125h arranged around the first opening 111h, and a side surface of the blocking portion 125h away from the cavity S1 cooperates with the stepped portion 142h to limit the movement of the sleeve 14h towards the cavity S1.

[0153] The side surface of the blocking portion 125h away from the cavity S1 is an upper end surface of the top portion 122h of the fixing portion body 12h, the stepped portion 142h is located outside the cavity S1, the stepped portion 142h is a flange structure of the end portion of the sleeve 14h, and the stepped portion 142h and the upper end surface of the top portion 122h abut each other to limit the sleeve 14h from continuously moving towards the gingival area A3.

[0154] Other descriptions of the third implementation form can refer to other implementation forms, which are not described here.

[0155] In combination Figures 23 to 24 In the fourth implementation form, the dental assembly 300k is a bracket guide assembly 300k, and the bracket guide assembly 300k comprises a bracket guide 100k and a functional piece 200k, and the functional piece 200k is a bracket 200k.

[0156] The main difference between the fourth implementation form and the third implementation form is that, in the fourth implementation form, the fixing portion 10k further comprises an embedded portion 13k located in the cavity S1, and the through hole portion 11k further comprises a channel 131k penetrating through the embedded portion 13k, and the sleeve 14k passes through the first opening 111k and extends to the channel 131k.

[0157] The embedded portion 13k is a pre-formed piece installed in the cavity S1, but is not limited thereto, and the embedded portion 13k can also be in other forms, for example, the embedded portion 13k is formed by a material filled in the cavity S1, and the material can be pre-filled in the cavity S1 before the bracket 200k is implanted.

[0158] The sleeve 14k is fixed in the fixing portion body 12k through the embedded portion 13k, which can improve the retention stability of the sleeve 14k, and further improve the guiding effect of the sleeve 14k on the bracket 200k, and improve the precision of implanting the bracket 200k.

[0159] Other descriptions of the fourth implementation form can refer to other implementation forms, which are not described here.

[0160] In summary, the dental instrument of the utility model can be a dental orthodontic appliance, a bracket guide, etc., and the fixing portion can be used as an interface to realize the mutual fixation or interaction between the functional piece and the dental instrument.

[0161] 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 also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0162] The above series of detailed descriptions are only specific descriptions of the feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent embodiments 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 instrument, characterized in that, The dental appliance comprises an appliance body having a cavity, a fixing portion protruding from the appliance body towards a side away from the cavity, and a sleeve, the fixing portion comprises a fixing portion body and a through portion, the fixing portion body surrounds to form a hollow cavity communicating with the cavity, the through portion comprises a first opening hole penetrating through the fixing portion body, the sleeve has a hole with at least one open end, the sleeve passes through the first opening hole and extends to the hollow cavity, and the fixing portion exposes the open end.

2. The dental instrument of claim 1, wherein, The through portion further comprises a second opening hole penetrating through the fixing portion body, and the sleeve passes through the first opening hole, the hollow cavity and the second opening hole in sequence.

3. The dental instrument of claim 1, wherein, One end of the sleeve has a step portion protruding towards a direction away from the hole, the fixing portion body comprises a blocking portion arranged around the first opening hole, and a surface of the blocking portion away from the hollow cavity cooperates with the step portion to limit the movement of the sleeve towards the hollow cavity.

4. The dental instrument of claim 1, wherein, One end of the hole is open, and the other end is closed, or both ends of the hole are open.

5. The dental instrument of claim 1, wherein, The sleeve is detachably connected with the fixing portion.

6. The dental instrument of claim 1, wherein, The fixing portion further comprises an embedding portion located in the hollow cavity, and the through portion further comprises a channel located in the embedding portion, the sleeve passes through the first opening hole and extends to the channel.

7. The dental instrument of claim 6, wherein, The through portion further comprises a second opening hole penetrating through the fixing portion body, the channel penetrates through the embedding portion, and the channel communicates with the first opening hole and the second opening hole.

8. The dental instrument of claim 7, wherein, One end of the sleeve away from the first opening hole is located in the channel, or the sleeve extends to the second opening hole.

9. The dental instrument of claim 6, wherein, The embedding portion is formed by a material filled in the hollow cavity.

10. The dental instrument of claim 6, wherein, The embedding portion is a pre-formed member, and the channel is a pre-formed structure in the embedding portion.

11. The dental instrument of claim 1, wherein, The dental appliance is an orthodontic appliance, the appliance body is an appliance body having a cavity accommodating teeth, and the fixing portion is located on a buccal surface or a lingual surface of the appliance body.

12. The dental instrument of claim 1, wherein, The dental appliance is an anchor pin guide plate, the appliance body comprises a guide plate body having a cavity accommodating teeth and an extension area, the extension area is an area formed by extending the guide plate body towards a gum area, and the fixing portion is located in the extension area.

13. The dental instrument of claim 12, wherein, The fixing portion body comprises a peripheral portion and a top portion connected with each other, the peripheral portion is connected with the appliance body, the peripheral portion and the top portion surround to form the hollow cavity, the first opening hole is located in the top portion, and the hole communicates with the gum area.

14. A dental assembly characterized by, The dental appliance comprises a functional member and the dental appliance as claimed in any one of claims 1-13, the functional member comprises an insertion end, the insertion end passes through the open end and extends to the hole.

15. The dental assembly of claim 14, wherein, The dental appliance is an orthodontic appliance, the appliance body is an appliance body having a cavity accommodating teeth, the fixing portion is located on a buccal surface or a lingual surface of the appliance body, the functional member comprises an arch wire connected with the orthodontic appliance, and the insertion end is a free end of the arch wire.

16. The dental assembly of claim 15, wherein, The free end of the arch wire enters the hole through the opening, and the dental assembly further comprises a stopper connected to the insertion end, and a surrounding area of the opening cooperates with the stopper to limit the movement of the arch wire towards the hole, the stopper is a bending area of the arch wire, or the stopper is a block structure sleeved on the arch wire.

17. The dental assembly of claim 15, wherein, The functional part is an extra-oral arch, a lip bumper, a downforce auxiliary arch or an expansion auxiliary arch.

18. The dental assembly of claim 15, wherein, The fixing part is arranged corresponding to the posterior tooth area, and the dental assembly comprises two fixing parts arranged corresponding to two posterior tooth areas of the same dental arch, and the functional part comprises two insertion ends which are matched with the two fixing parts one by one.

19. The dental assembly of claim 18, wherein, In each correction step, the spatial relative position between the fixing part and the target point remains unchanged.

20. The dental assembly of claim 14, wherein, The dental appliance is a bracket guide plate, the appliance body comprises a guide plate body having a cavity for accommodating teeth and an extension area, the extension area is an area formed by the extension of the guide plate body towards the gum area, the fixing part is located in the extension area, the functional part is a bracket, and the insertion end is an implanting part of the bracket, the implanting part is implanted into the gum area through the opening and the hole.

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