KR101913572B1 - Mouthpiece for orthodontic treatment and method for fabricating the same - Google Patents

Abstract

The present invention relates to a dental mouthpiece for orthodontic appliance which is connected to a head gear type out-of-calibration device and performs dentition movement, in which a core frame contains contact point information of an opposing tooth, The teeth are firmly fixed and easily connected to the head gear type out-of-calibration device so that the teeth that are inserted into the mouthpiece can be pulled together at the same time and effectively manufactured.
To this end, the present invention provides a toothbrush comprising: a core frame, which is an arcuate structure having a tooth contact surface of a shape in which an end portion of teeth is transferred; A pocket frame for receiving the core frame and having tooth grooves for holding teeth; And a pair of pulling rings which are partially embedded in the inside of the pocket frame and fixed on the core frame and the remaining part integral with the part is exposed to the outside of the pocket frame. And a method for manufacturing the mouthpiece are provided.

Description

Technical Field [0001] The present invention relates to a mouthpiece for orthodontic orthodontic treatment,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental orthodontic mouthpiece, and more particularly, to a dental orthodontic mouthpiece connected to a head gear type out-of-calibration apparatus to perform dental movement, and a method of manufacturing the same.

Generally, orthodontic appliances are classified into fixed type, removable type, and extralegal type. The orthodontic appliance selects each orthodontic appliance according to the patient's condition and treatment plan. To easily express each type, the orthodontic appliance means a orthodontic appliance fixedly attached to the surface of the tooth, It is a device that is installed outside the mouth and is exposed to the outside, not a device installed in the mouth.

In other words, the out-of-line orthodontic appliance is applied to the orthodontic treatment, or when there is discordance between the upper and lower jaws for the purpose of suppressing or promoting jaw growth, it is not possible to obtain satisfactory treatment results simply by moving the teeth. To correct skeletal morphology.

When a simultaneous pulling force is applied to a plurality of teeth in a normal orthodontic treatment, for example, in a growing orthodontic treatment, a bracket is provided for each tooth of the individual person, and a wire having a pulling ring is hooked on the bracket to realize tooth movement. Although the orthodontic appliance has many advantages, it is not easy to correct the occlusion in clinical area.

Therefore, the core of the mouthpiece contains the contact point information of the opposed value, so that the occlusal correction operation is not required separately, and the tooth force is easily connected to the head gear type out-of-calibration device (see FIGS. 1 and 2) A new type of removable mouthpiece for orthodontic treatment is required.

Korean Patent Publication No. 10-2015-0119597 (October 26, 2015)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a dental mouthpiece for orthodontic appliance which is connected to a head gear- No need for occlusal correction, the traction ring is firmly fixed and easily connected to the headgear out-of-calibration device, the teeth that are inserted in the mouthpiece are simultaneously subjected to a pulling force as a whole, And a method of manufacturing the mouthpiece.

According to an aspect of the present invention, there is provided a toothbrush comprising: a core frame, which is an arcuate structure having a tooth contact surface in which an end portion of teeth is transferred; A pocket frame for receiving the core frame and having tooth grooves for holding teeth; And a pair of traction rings fixed to the core frame and partially embedded in the pocket frame and exposed to the outside of the pocket frame, the remaining part integrally formed with the part of the mouth frame. The purpose is to provide.

In the above-described configuration, the core frame has a tooth contact surface in the form of a hard rigid material and a plurality of teeth of the teeth, the pocket frame having a rigid first lid layer and a first lid layer, And a soft second cover layer provided on the inner side of the core layer, wherein tooth grooves for receiving the core frame are formed along the longitudinal direction.

In the above-described configuration, the remaining portion of the pull ring exposed to the outside of the pocket frame constitutes a hook, and has a structure that is bent so as to be caught at the leading end of the pulling member of the head gear- do.

The remaining part of the hook, which is exposed to the outside of the pocket frame of the pull ring, is bent in an 'L' character or an 'S' character.

According to another aspect of the present invention, there is provided a method of manufacturing an arch-shaped mouthpiece detachably mounted on an upper or lower teeth of a dental arch.

A method of manufacturing a mouthpiece according to the present invention includes: a core design step of designing a core frame on which a contact point information for an opposing value is inputted, in consideration of an occlusal aspect, on a computer program; A core fabricating step of fabricating the core frame designed in the core designing step using a 3D printer; A model fitting step of fitting the core frame fabricated in the core manufacturing step onto a separately prepared tooth model having the same structure as the actual teeth; A ring arranging step of disposing a pulling ring on both sides of a front portion of the core frame to temporarily fix the pulling ring; Forming a pocket frame on the outer side of the core frame to form a pocket frame by heating a duplex sheet including a hard layer constituting a first lid layer and a soft layer constituting a second lid layer laminated and integrated with the first lid layer, Wherein a part of the pulling ring is fixed on the core frame in a state of being embedded in the pocket frame and the remaining part integral with the part is exposed to the outside of the pocket frame as the pocket forming step is performed .

According to another aspect of the present invention, there is provided a method of manufacturing a dental mouthpiece, the method comprising: forming a core frame having contact point information on an opposing tooth on a tooth model manufactured to have the same structure as an actual tooth; A model fitting step of fitting the core frame fabricated in the core forming step onto a separately prepared tooth model having the same structure as the teeth; A ring arranging step of disposing a pulling ring on both sides of a front portion of the core frame to temporarily fix the pulling ring; Forming a pocket frame on the outer side of the core frame to form a pocket frame by heating a duplex sheet including a hard layer constituting a first lid layer and a soft layer constituting a second lid layer laminated and integrated with the first lid layer, Wherein a part of the pulling ring is fixed on the core frame in a state of being embedded in the pocket frame and the remaining part integral with the part is exposed to the outside of the pocket frame as the pocket forming step is performed .

In the above-described methods, the remaining portion exposed to the outside of the pocket frame of the pull ring is bended in a desired shape and direction after the pocket forming step is performed.

Effects of the dental orthodontic mouthpiece having the pulling ring of the present invention and the manufacturing method thereof are as follows.

First, according to the present invention, since the core frame of the dental mouthpiece contains the contact point information of the opposing teeth, the operation of the dental prosthesis is convenient since the occlusal correction operation is not separately required.

Secondly, according to the present invention, the pulling ring connected to the out-of-range calibration device is firmly fixed to the hard core frame through the recessed portion, so that the pulling force is applied to the teeth inserted in the mouthpiece as a whole simultaneously, .

Third, the mouthpiece according to the present invention can easily adjust the pulling ring connected to the out-of-calibration device to a desired shape and direction, and thus can be easily connected to the head gear type out-of-calibration device.

Fourth, since the dental mouthpiece according to the present invention can provide an appropriate fitting force for detachment, it is possible to prevent damage of the teeth at the time of detachment, to easily remove and detach the dental mouthpiece, and to provide excellent resistance and shape stability against long- .

Fifth, the mouthpiece according to the present invention can maintain the bite relationship between the upper and lower teeth, and can prevent or minimize the damage of the jaw joint due to the horizontal movement of the lower teeth relative to the upper teeth.

Sixth, according to the present invention, it is possible to manufacture a mouthpiece in a more various manner than conventional ones, for example, by embodying a core frame on a computer program to produce a 3D printer. Thus, .

FIG. 1 is a perspective view showing a state where an out-of-calibration device is applied to a child in a growing period requiring orthodontic treatment;
FIG. 2 is a schematic view showing a portion of the mouth to which an orthodontic force is to be applied by the extra-
3 is a perspective view showing the mouthpiece of the present invention
Fig. 4 is a plan view of Fig. 3
5 is a cross-sectional view taken along the line AA in Fig.
6 is a flowchart illustrating a process of manufacturing a mouthpiece according to the present invention
7 is a flowchart showing another example of a mouthpiece manufacturing process of the present invention
8 to 11 are perspective views for sequentially illustrating a process of manufacturing a mouthpiece according to the present invention,
FIG. 8 is a perspective view showing a state in which the core frame on the tooth model is fitted during the manufacturing process of the mouthpiece according to the present invention.
FIG. 9 is a perspective view showing a state in which a pulling ring is temporarily fixed to a core frame suitable for a tooth model during a manufacturing process of a mouthpiece according to the present invention;
10 is a perspective view showing a state after fixing the pulling ring to the core frame on the tooth model during the manufacturing process according to the present invention,
FIG. 11 is a perspective view showing a state where the hook portion of the pulling ring exposed to the outside of the pocket frame is bent after the process of FIG. 10 is performed;
12 is a reference photograph showing a prototype of a mouthpiece according to the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 12, a dental orthodontic mouthpiece 100 according to the present invention includes: a core frame 110, which is an arcuate structure having a tooth contact surface in which an end portion of teeth is transferred; A pocket frame 120 which is a structure having a tooth groove 120a for receiving the core frame 110 and containing teeth; And a pair of traction rings 130 connected to an out-of-line calibration device in which a part of the pocket frame 120 is embedded in the pocket frame 120 to receive a traction force.

The pull ring 130 is made of a metal material and is partially embedded in the pocket frame 120 and is fixed on the core frame 110. The other part of the pull ring 130 is integrated with the pocket frame 120, As shown in FIG.

That is, the remaining part of the pulling ring 130 exposed to the outside of the pocket frame 120 can perform the function of a hook as it is bent, which is also referred to as 'hook portion' in the following description.

Meanwhile, the core frame 110 is made of a rigid hard material, and has teeth contacting surfaces of a plurality of teeth of which teeth are formed and temporary fixing of the pull ring 130 during the manufacture of the mouthpiece. It can have recessed parts.

That is, when the impeller is provided on both sides of the front portion of the core frame 110, the impeller provides a space in which a part of the pull ring 130 is fixed, so that when the mouthpiece 100 is manufactured, So that the temporary fixing of the pulling ring 130 can be performed more easily.

The pocket frame 120 is a layered structure including a rigid first lid layer 121 and a soft second lid layer 122 provided inside the first lid layer 121, A tooth groove 120a for receiving the core frame 110 is formed.

The hook portion of the pulling ring 130 exposed to the outside of the pocket frame 120 has a structure bent to be caught at the tip of the pulling member 310 of the head gear type extramural correction apparatus 300. At this time, the hook portion is preferably bent in the shape of an 'L' (see FIG. 3) or bent in an 'S' shape, but is not limited thereto.

The core frame 110 may be made of a hard dental resin, but is not limited thereto. In the present embodiment, the core frame 110 is formed of a hard rigid body by mixing methyl methacrylate and polymethyl methacrylate. However, as described above, the material of the core frame 110 is limited thereto no.

In this embodiment, the first cover layer 121 of the pocket frame 120 may be made of a hard resin such as a hard silicone resin, and the second cover layer 122 may be made of a soft or cushion material The soft layer may be made of soft resin such as soft silicone resin. Dental resin is sold in various companies such as ERKODENT in Germany and FORESTADENT in Germany. Examples of the hard dental resin include polyethylene terephthalate glycols (PETG), and specific examples of the soft dental resins include EVA (Ethylene Vinyl Acetate) and thermoplastic polyurethane (TPU ) Or the like may be used. As described above, the hard resin having a hard surface and the soft resin having cushioning properties are variously known, and further description thereof will be omitted.

In addition, the core frame 110 and the pocket frame 120 of the present embodiment are preferably made of a transparent material, and the distal end of the pulling ring 130 is formed to have a spherical shape with an expanded diameter.

1 and 2, reference numeral 320 denotes a headgear, reference numeral 321 denotes a headgear strap, and reference numeral 322 denotes a cushioning pad.

Hereinafter, a method of manufacturing the dental mouthpiece 100 of the present invention and a process thereof will be described with reference to FIGS. 1 to 12, mainly with reference to FIGS. 6 to 12. FIG.

First, with reference mainly to Figs. 6 and 8 to 12, among methods of manufacturing an arch-shaped mouthpiece detachably mounted on an upper or lower teeth of a dental arch, A manufacturing process according to the following will be described.

According to the first method, a step of designing a core frame 110 in which a contact point information for an opposing tooth is inputted, that is, a core designing step, is first performed considering the occlusion patterns of the maxillary and mandibular teeth do.

At this time, the core frame 110 designed on the computer program is provided with a recess for fixing the traction loop 130 to be disposed in a post process.

Then, the core frame 110 designed in the core design step is manufactured using a 3D printer (i.e., a core manufacturing step). As the core frame 110 is manufactured using the 3D printer as described above, the machining process such as cutting to form the recessed portion may be omitted.

Thereafter, the core frame 110 fabricated in the core manufacturing step is fitted to a separately manufactured tooth model having the same structure as the actual tooth (i.e., model fitting step) (see FIG. 8).

Then, the pulling ring 130 is disposed on both sides of the front portion of the core frame 110 to temporarily fix the core frame 110 (i.e., the ring arranging step). At this time, if both sides of the front portion of the core frame 110 are provided with recesses for arranging the traction rings 130 according to the design content, a part of the traction rings 130 is remoted by an adhesive (not shown) As a result, the pulling ring 130 is temporarily fixed to the core frame 110 (see FIG. 9). In other words, the pulling ring 130 is disposed on the surface of the core frame 110 as shown in FIG. 9 and fixed temporarily.

In addition, the hook portion exposed to the outside of the pocket frame 120 out of the portions constituting the pull ring 130 temporarily fixed to the core frame 110 is once shaped like a rectangle. This is because when the pocket frame 120 is formed, Layer sheet constituting the additional pocket frame to be easily exposed to the outside.

After the temporary fixing of the pulling ring 130 is performed, a step of forming the pocket frame 120 outside the core frame 110 (pocket forming step) is performed. That is, a soft layer is formed on the outer side of the core frame 110 as a hard layer constituting the first lid layer 121 and a second lid layer 122 laminated and integrated with the first lid layer 121 And the pocket frame 120 is formed by heating the duplex sheet. 5 and 9 to 11, the pulling collar 130 is fixed to the boundary between the core frame 110 and the pocket frame 120. As shown in FIG.

A part of the pull ring 130 is fixed on the core frame 110 while being embedded in the pocket frame 120 and the remaining part integrally connected to a part of the pull ring 130 Exposed to the outside of the pocket frame 120, and the remaining portion of the pulling ring 130 exposed to the outside of the pocket frame 120 forms a straight line (see FIG. 10).

After the pocket frame 120 is formed, the remaining portion exposed to the outside of the frame 120 of the pull ring 130 is bent in a desired shape and direction so as to function as a hook Thereby completing the manufacture of the mouthpiece 100 (see Figs. 11 and 12).

Hereinafter, with reference mainly to Figs. 7 and 8 to 12, a method of manufacturing an arch-shaped dental mouthpiece 100 detachably mounted on a maxillary or mandibular teeth of a dental arch, A manufacturing process according to the second embodiment will be described.

According to the second method, the core frame 110 is manufactured on a tooth model, in which a user's tooth model, for example, an oral gypsum model, is prepared. The tooth model is generally manufactured using an impression material and a gypsum. Since the method of manufacturing the tooth model is generally known in the art, further explanation is omitted.

The tooth model has the same structure as the teeth to which the dental mouthpiece 100 is attached. Hereinafter, a tooth model that mimics the tooth, that is, the structure of the tooth to which the dental mouthpiece 100 is attached is referred to as a first tooth model M1, and a tooth model that mimics the structure of a relative tooth is referred to as a second tooth model M2 .

The first tooth model M1 is arranged on the base plate P of the articulated linkage to produce the tooth frame, specifically the core frame 110 on the first tooth model M1, The occlusion relationship of the first tooth model M1 and the second tooth model M2 is aligned on the base plate P as much as the occlusal relationship of the wearer's upper and lower teeth.

In order to arrange the interlocking relationship of the first tooth model M1 and the second tooth model M2, a dental bite having teeth marks on the lower and upper teeth of the wearer can be used.

A link bar (not shown) is rotatably connected to the joint J of the articulated link mechanism in a state in which the first teeth model M1 and the second tooth model M2 are in an aligned state, The second tooth model M2 is fixed. When the link bar is rotated about the joint after the second tooth model M2 is fixed to the link bar, the second tooth model M2 is spaced from the first tooth model M1.

Next, the core frame 110 may be manufactured on the first tooth model M1, and the core frame 110 may be formed on the tooth part of the first tooth model M2, It is manufactured by applying a resin, especially a hard resin, and curing it. Of course, the core frame 110 may be manufactured by stamping a hard sheet to be described later on the first tooth model M1.

In other words, the core frame 110 may be formed by applying a dental resin, particularly a hard resin, to a tooth portion of the first tooth model, placing a hard sheet on the first tooth model M1, .

In this embodiment, a dental resin, more specifically, Methyl Methacrylate and Polymethyl Methacrylate are applied to the tooth portion of the first tooth model M1, 110 are formed into a shape having a tooth contact surface. Of course, it is also possible to form the core frame 110 by stamping a hard resin sheet on the first tooth model M1.

The core frame 110 may be completed through a process of finishing the appearance of the core frame 110, for example, a trimming process of finishing the surface and the edge of the core frame 110.

After the step of forming the core frame 110 having the contact point information for the opposing teeth on the tooth model (i.e., the core forming step) is performed, a machining process for forming the recessed portion on the core frame 110 is performed The core frame 110 may be formed to have a thickness and a width such that the concave portion can be machined.

After the indentation is formed in the core frame 110, the core frame 110 is matched with a separately prepared tooth model so as to have the same structure as the teeth (i.e., a model fitting step) Reference).

9), the formation of the pocket frame 120 (see FIG. 10), and the pockets of the pockets 100 (see FIG. 10) Bending of the hook portion of the pull ring 130 exposed to the outside of the frame 120 (see FIGS. 11 and 12), and the like are sequentially performed, and the process of manufacturing the first mouthpiece according to the above- The same procedure will be followed, and thus omitted in order to avoid duplication of explanation.

The operation of the mouthpiece 100 of the present invention constructed and manufactured as described above is as follows.

Since the dental orthodontic mouthpiece 100 of the present invention contains the contact point information of the opposing teeth of the core frame 110, it is convenient to perform the operation since the occlusal correction operation is not separately required.

In the mouthpiece 100 of the present invention, a part of the pulling ring 130 located on the concave portion is firmly fixed to the hard core frame 110 via the adhesive, So that the movement of the teeth can be effectively performed.

In addition, the mouthpiece 100 of the present invention can easily adjust the pulling ring 130 to a desired shape and direction, and thus can be easily connected to the head gear type extramural correction apparatus 300, The movement of the teeth is effectively performed.

In addition, the mouthpiece of the present invention can provide an appropriate fitting force for detachment, so that damage to the teeth can be prevented at the time of detachment, detachment is easy, and excellent resistance and shape stability against long-term use or impact are provided.

In addition, according to the mouthpiece of the present invention, the occlusal relationship between the upper and lower teeth can be maintained, and the damage of the jaw joint due to horizontal movement of the lower teeth relative to the upper teeth can be prevented or minimized.

In the meantime, the present invention enables the manufacture of the mouthpiece 100 in a more various manner than in the past, such as by embodying the core frame 110 on a computer program and producing it as a 3D printer. Thus, The mouthpiece 100 can be easily manufactured.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is self-evident to those with knowledge.

For example, in the above-described embodiment, the pulling ring 130 is provided on the mouthpiece 100 installed in the maxillary teeth. However, the pulling ring 130 may be provided on the mouthpiece provided on the lower- Of course it is.

Therefore, it should be understood that the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, and can be modified within the scope of the appended claims and equivalents thereof

100: mouthpiece 110: core frame
120: pocket frame 120a: tooth groove
121: first cover layer 122: second cover layer
130: Traction ring 300: Outside calibration device
310: pulling member 320: head gear
321: Head gear strap 322: Cushion pad

Claims (11)

delete delete delete delete A method of manufacturing an arch-shaped mouthpiece detachably mounted on a maxillary or mandibular teeth of a dental arch comprising:
A core design step of designing a core frame in which a contact point information for an opposing value is inputted in consideration of an occlusal aspect on a computer program;
A core fabricating step of fabricating the core frame designed in the core designing step using a 3D printer;
A model fitting step of fitting the core frame fabricated in the core manufacturing step onto a separately prepared tooth model having the same structure as the actual teeth;
Arranging a pulling ring on both sides of a front portion of the core frame to temporarily fix the pulling ring to the surface of the core frame;
Layered sheet comprising a hard layer constituting a first cover layer and a soft layer constituting a second cover layer laminated and integrated with the first cover layer on the outer side of the core frame to form a pocket frame, And a pocket forming step of fixing the pulling ring at a boundary between the frame and the pocket frame;
A portion constituting the pulling ring is fixed on the core frame while being embedded in the pocket frame as the pocket forming step is performed, and the remaining portion of the pulling ring integral with the portion is exposed outside the pocket frame;
In the core designing step, a recess is designed on the left and right sides of the front portion of the core frame where a part of the pulling ring is located;
Wherein a part of the pulling ring is adhered to the impregnated portion via an adhesive agent and the pulling ring is temporarily fixed to the surface of the core frame prior to the pocket forming step, Gt; delete delete A method of manufacturing an arch-shaped mouthpiece detachably mounted on a maxillary or mandibular teeth of a dental arch comprising:
An occlusal aligning step of aligning an occlusal relationship of an upper and lower teeth model prepared to have the same structure as an actual tooth;
A core forming step of forming a core frame having contact point information on an opposing tooth on the tooth model;
A model fitting step of fitting the core frame fabricated in the core forming step onto a separately prepared tooth model having the same structure as the teeth;
Arranging a pulling ring on both sides of a front portion of the core frame to temporarily fix the pulling ring to the surface of the core frame;
Layered sheet comprising a hard layer constituting a first cover layer and a soft layer constituting a second cover layer laminated and integrated with the first cover layer on the outer side of the core frame to form a pocket frame, And a pocket forming step of fixing the pulling ring at a boundary between the frame and the pocket frame;
A portion constituting the pulling ring is fixed on the core frame while being embedded in the pocket frame as the pocket forming step is performed, and the remaining portion of the pulling ring integral with the portion is exposed outside the pocket frame;
Before performing the step of fitting the core frame to the tooth model, forming a recess on the core frame is performed;
Wherein a part of the pulling ring is adhered to the impression portion through an adhesive agent and the pulling ring is temporarily fixed to the surface of the core frame in the loop arranging step prior to the pocket forming step Gt; delete delete 9. The method according to claim 5 or 8,
Further comprising the step of: bending the remaining portion of the traction ring exposed out of the pocket frame to a desired shape and orientation after performing the pocket forming step.

Images