KR101680150B1 - Mouth Guard And Manufacturing Method Thereof - Google Patents

Abstract

The present invention relates to a mouth guard including: an arch-shaped guard frame where a tooth groove is formed for tooth insertion; and a guard cover stacked on the outer surface of the guard frame. The guard cover has: a tongue-side cover stacked on a tongue side of the guard frame; and a lip-side cover formed integrally with the tongue-side cover, stacked on a lip side of the guard frame, and higher than the tongue-side cover. The lip-side cover has: a lip-side base portion superposed on the lip side of the guard frame; and a gum protecting portion extending upward and downward from the lip-side base portion with its surfaces on both of its sides exposed. According to the present invention, the gum-covering part is thinner than the tooth surface-covering part, and thus the present invention can be worn in a soft way, is capable of minimizing irritation, and can be manufactured with ease.

Description

Mouth Guard And Manufacturing Method Thereof "

[0001] The present invention relates to a mouth guard which is inserted into teeth and protects the inside of the mouth, and a method of manufacturing the same. More particularly, the present invention relates to a double-layer mouth guard having a soft surface layer and a method of manufacturing the same.

In general, the mouth guard is also referred to as a mouthpiece, and refers to an oral cavity structure that is attached to the teeth and protects the teeth from external impacts, and further, the jaw joints.

More specifically, the mouth guard is attached to the teeth to prevent damage to the soft tissues and temporomandibular joints in the tooth and the oral cavity when an impact is applied to the face during exercise such as fighting or ball game, , Rubber, silicone or latex.

For reference, a human tooth forms an arched arrangement, that is, a dental arch. The teeth are divided into normal occlusion and malocclusion according to the positional relationship of the teeth in the state where the lower and upper teeth are engaged with each other.

Conventional conventional mouse guards are provided for sports or leisure purposes, and are divided into ready-made items and personalized ones. Since the ready-made mouth guard has poor suitability and functionality for individual oral structures, a customized mouth guard that is generally tailored to the individual oral structure is preferred.

The mouthguard protects the internal organs such as teeth and gums from impacts externally applied to the teeth, and protects the jaw joints and jaws (jawbone) by being inserted in the teeth, especially the upper teeth. In addition, have.

On the other hand, when a person is in a state of tension or has to exert a great deal of force, the muscles near the mouth are tightened and tightened, and the strong occlusal force generated at this time is absorbed and dispersed by the jaw joint and the teeth, Large or repetitive occurrences have adverse effects on the teeth and jaw joints.

In addition, teeth damage may occur due to repetition of unconscious or irregular water during sleep. The conventional mouth guard is insufficient to prevent tooth damage due to occlusal and upper teeth occlusion, such as rickettsy and gingivitis, There is a problem that it is difficult to equip all of the soft wearing feeling, and there is a problem that a foreign body feeling is largely generated when it is worn in the mouth.

Korean public utility model 20-2012-0004838, July 4, 2012 public Published Korean Patent Application No. 10-2012-0004796, January 13, 2012

Disclosure of the Invention The present invention has been proposed in order to solve the problems of the above-described conventional mouse guards, and it is an object of the present invention to provide a mouse guard having a structure which can provide a comfortable durability, .

One aspect of the present invention is a mouth guard comprising an Arch type guard frame formed with tooth grooves for engaging teeth and a guard cover stacked on an outer surface of the guard frame, A lid-side cover integrally formed with the lid-side cover and stacked on a side of the guard frame and being higher than the lid-side cover; And the mouth cover includes a forward side base portion overlapping the forward side of the guard frame and a gum protection portion extending in the up and down direction from the forward side base portion and having both side surfaces exposed.

The guard frame comprising: A guard pocket formed in the tooth groove, the tooth pocket having a mouthpiece-shaped tooth pocket forming the tooth groove and received in the guard cover, and a tooth contact surface having a shape in which an end portion of the teeth are transferred, .

The tooth contact surface is formed on one side surface of the guard core, the other side surface of the guard core is in contact with the bottom of the tooth groove, and both side walls of the tooth pocket form inner side surfaces of the tooth groove.

The tooth pocket may be composed of a layered structure including a rigid hard layer joined to the inner surface of the guard cover and a soft layer provided inside the rigid layer.

The lid-side cover and the right side cover have a soft cover layer for protecting the guard frame. More specifically, the guard cover is made of a soft material as a single layer.

The lid-side cover may be extended to a height equal to or less than 3 mm so as not to touch the lingual portion of the guard frame or the cervical portion.

According to another aspect of the present invention, there is provided a method of manufacturing a mouth guard comprising an Arch-type guard frame formed with tooth grooves for engaging teeth and a guard cover laminated on the outer surface of the guard frame, (A) forming an arch-type guard frame having grooves; And a gingival protector extending vertically from the proximal base portion to expose both sides of the gingival protector, wherein the gingival protector is integrally formed with the lingual cover, (B) forming an upper guard cover including a front side cover formed on the front side of the guard frame and stacked on the front side of the guard frame, and coating the guard frame on the outside of the guard frame.

Wherein the step (a) comprises: (A1) forming a guard core having a shape in which an end portion of the teeth is transferred; And (a2) shaping a mouthpiece-shaped tooth pocket, which accommodates the guard cores and form both side walls of the tooth groove, on the outside of the guard cores.

Wherein the step (a) comprises: Dimensional tooth model having the same structure as the tooth structure of the teeth or may be performed in a three-dimensional molding machine based on three-dimensional shape data designed using image data of the teeth.

The step (b) includes: (b1) forming a guard cover structure having a shape of the guard cover by fusing a resin sheet to the outside of the guard frame; And cutting the guard cover structure to finish the appearance of the guard cover (b2).

The resin sheet is a soft resin sheet having a single layer, and the step (b1) is a step of forming the guard cover structure by fusing the soft resin sheet to the outside of the guard frame.

The mouse guard according to the present invention and its manufacturing method have the following advantages.

First, since the thickness of the portion covering the gum is thinner than that of the portion covering the surface of the teeth, the present invention can provide a soft feeling of wearing, minimize the foreign body feeling, and is easy to manufacture.

Second, since the present invention is a removable device that can hold teeth in place and protect teeth from irritation or irritation, and can be easily detached when a user desires, The convenience can be greatly improved.

Third, since the present invention can provide an appropriate fitting force for attachment and detachment, it is possible to prevent damage to the teeth at the time of attaching and detaching, easy detachment, excellent resistance to long-term use or impact, shape stability and durability.

Fourth, the present invention can be used for sporting and racing sports such as ball games, martial arts events, and the like, and can be used for various purposes such as prevention of tooth damage due to dryness during sleeping.

1 is a perspective view schematically showing an embodiment of a mouth guard according to the present invention.
2 is a cross-sectional view taken along the line AA in Fig.
3 is a cross-sectional view taken along line BB in Fig.
4 is a plan view of the mouth guard shown in Fig.
Fig. 5 is a side view schematically showing the mouth guard shown in Fig. 1. Fig.
6 is a plan view schematically showing one embodiment of a guard core applied to a mouth guard according to the present invention.
7 is a side view showing the wearing state of the mouth guard shown in Fig.
8 is a cross-sectional view showing a state in which the molar guard shown in Fig.
FIG. 9 is a cross-sectional view showing a state in which the front teeth of the relative teeth are in contact with the mouth guard shown in FIG. 6;
10 is a flow chart illustrating an embodiment of a method of manufacturing a mouth guard according to the present invention.
11 is a perspective view illustrating a state in which a tooth model of an upper and lower teeth is supported on a joint link device in a state in which an occlusal relationship is aligned.
FIG. 12 is a perspective view illustrating a state in which a tooth model of the maxillary and mandibular teeth is opened by a joint link device in an aligned state of an occlusal relationship; FIG.
13 is a perspective view showing a state in which a guard core is molded on a tooth model.
14 is a side view showing a state in which a guard core is formed on a tooth model.
15 is a perspective view showing a state in which a layered structure for forming a tooth pocket is covered with a guard core.
16 is a perspective view showing a state in which a guard frame is formed on a tooth model.
17 is a perspective view showing a structure in which a guard frame is covered with a structure for forming a guard cover.
18 is a perspective view illustrating a state in which a mouth guard according to an embodiment of the present invention is formed on a tooth model.
19 and 20 are process charts schematically illustrating a process of manufacturing a mouth guard according to an embodiment of the present invention.

Best Mode for Carrying Out the Invention Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same reference numerals and symbols are used for the same components, and additional description and overlapping description thereof will be omitted in the following.

First, an embodiment of a mouth guard according to the present invention will be described with reference to Figs. 1 to 6. Fig.

Here, FIG. 1 is a perspective view schematically showing an embodiment of a mouth guard according to the present invention, FIG. 2 is a sectional view taken along line A-A of FIG. 1, and FIG. 3 is a sectional view taken along line B-B of FIG. FIG. 5 is a side view schematically illustrating the mouse guard shown in FIG. 1, FIG. 6 is a side view of a guard core according to an embodiment of the present invention, FIG. Fig.

The mouth guard according to the present invention is a removable oral cavity structure which is detachably attached to the upper or lower teeth of the dental arch, that is, the upper or lower teeth to protect the teeth from the external impact and further the jaw joint. The mouth guard may be mounted on the lower teeth of the mandible, but when applied to the lower teeth, the tooth grooves may move in opposite directions (upwards) . The mouth guard according to the present invention may be formed of a transparent material, for example, a transparent resin material.

Referring to FIGS. 1 to 6, an embodiment 100 of the mouth guard according to the present invention is detachably attached to an upper Teeth (upper teeth) as described above, so that the user's teeth and gums, It is an intraoral structure that prevents internal damage and protects the temporomandibular joint. It can be used for various purposes such as sports and leisure sports.

The mouth guard 100 is formed with a tooth groove 110a in which the teeth (in this embodiment, the upper teeth) are inserted. The mouth guard 100 is provided at a portion of the mouth guard 100, Tip, anterior teeth, and the occlusal surface of the molar), and includes a guard frame 100A and a guard cover 130.

The guard frame 100A has an arch shape and forms a base connecting both side walls of the teeth groove 110a. The guard cover 130 is stacked on the outer surface of the guard frame 100A, And covers the outer surface of the guard frame 100A. Accordingly, the guard frame 100A is accommodated in the guard cover 130, so that the guard cover 130 and the guard frame 100A are integrated with each other.

More specifically, the guard cover 130 includes a lid-side cover 131 stacked on the lingering side of the guard frame 100A and a forward side cover 132 stacked on the forward side of the guard frame 100A . The term "lingual side" and "lateral side" are generic terms in the dental field. The lingual side refers to the direction in which the tongue is located relative to the teeth, that is, the inside of the arched structure, and the innermost side refers to the direction in which the lips and the ball are located .

The lid-side cover 131 and the forward-side cover 132 are integrally formed. The outsides cover 132 includes a proximal base portion 132a that overlaps a front surface of the guard frame 100A and a protrusion base portion 132b that extends vertically from the proximal base portion 132a, (132b). Therefore, the front side cover 132 is formed to be higher than the lingual side cover 131 so as to cover the gums.

That is, in the case of the removable mouth guard attached to the upper teeth as in the present embodiment, the outermost cover 132 covers the surface of the gum soft tissue by extending upwardly higher than the side of the guard frame 100A. Therefore, a portion of the outermost cover 132 that overlaps with the side of the guard frame 100A becomes the outboard base portion 132a, and a portion not overlapping the guard frame constitutes the gum protection portion 132b, 1 to 3, it can be seen that the gingival protector 132b extends vertically from the outsider base 132a to cover the gums.

The soft cover layer may be directly fused to the outer surface of the guard frame 100A and may be formed by forming the outer cover of the mouth guard 100 You may. In the present embodiment, the guard cover 130 is made of a soft layer as a single layer, and may be composed of a single layer of ethylene vinyl acetate (EVA) or a thermoplastic polyurethane material, for example.

Therefore, the outer surface of the guard cover 130, that is, the outer surface of the mouth guard 100 becomes soft, and the inner surface of the portion (gum protection portion) of the gum soft tissue, that is, the inner surface of the guard cover 130, It is possible to minimize the foreign body sensation and to disperse / absorb the impact applied to the teeth and the gums.

The guard frame 100A includes a dental mouthpiece toothpocket 110 accommodated in the guard cover 130 and a guard core 110 fixed to the inside of the tooth pocket 110 120).

The tooth groove 110a is formed in the tooth pocket 110 and the guard core 120 is provided in the tooth groove 110a. The guard core 120 has a tooth contact surface 121 having a shape in which an occlusal surface of an end portion of teeth, that is, an anterior tooth, and an occlusal surface of a molar tooth is transferred.

In other words, the tooth contact surface 121 is formed on one side of the guard core 120, and the other side surface of the guard core 120 is connected to the base surface of the tooth groove 110a And both side walls (the net wall and the lining wall) of the tooth pocket 110 form inner side surfaces of the tooth groove 110a.

The tooth pocket 110 includes a rigid layer 101 (hereinafter referred to as "first pocket layer") and a rigid layer (hereinafter referred to as a "first pocket layer") joined to the inner surface of the guard cover 130 And a soft layer 102 (hereinafter referred to as a 'second pocket layer') provided inside the one pocket layer 101.

In this embodiment, the tooth pocket 110 is a two-layer structure, and the innermost layer of the tooth pocket 110 is formed of the second pocket layer 102, i.e., a soft layer. Accordingly, the inner surface of the tooth groove 110a, in particular, both side surfaces of the tooth groove become soft. In the present embodiment, the tooth pocket 110 is a structure directly contacting the inner surface of the first pocket layer 101, and may be a two-layer structure or three or more layers. Therefore, the second pocket layer 102 may be in direct contact with the inner surface of the first pocket layer 101 and may be stacked with another layer interposed therebetween.

Since the mouth guard 100 according to the present embodiment is a structure to be attached to the upper teeth, an inner side of the tooth pocket 110 is formed in an arcuate shape along the longitudinal direction of the tooth pocket 110 to accommodate the teeth, A tooth groove 110a is formed.

More specifically, the tooth pocket 110 includes a lid side wall 111, a net side wall 112, and a pocket base 113. Here, the lid wall 111 and the net wall 112 form both side walls of the tooth groove 110a. In other words, the lid side wall 111 is in contact with the inner side of the teeth, that is, the lingual side, and the net side wall 112 is in contact with the outer side of the teeth, that is, the lips and balls. 1 to 3, the lid side wall 111 of the tooth pocket is covered by the lid-side cover 131 to form one side wall (lingual side of the guard frame) of the guard frame 100A And the net side wall 112 of the tooth pocket is covered with the right side cover 132 to form the other side wall of the guard frame 100A (the forward side of the guard frame).

Next, the pocket base 113 connects the lid wall 111 and the net wall 112 to block the teeth (upper teeth) and the upper teeth (lower teeth) And the outer surface (bottom surface) of the pocket base 113 is abutted against the upper surface (lower surface) when the mouth guard 100 is attached to the upper surface and the undergarment faces the upper surface.

The teeth of the normal person are divided into the posterior part and the anterior part, and the end part of the tooth part (T1, molar) constituting the posterior part is called the occlusal surface for chewing (chewing action) ; Transposition) is called a cutting plane (or insulation or cutting) because it functions as a cutting function.

In a normal person, the molar is composed of two or three molars on each of the right and left sides and two premolars on the front side of the molar, and the anterior part is composed of a central tooth, a lateral incisor, and a canine.

The guard core 120 is provided on the inner side of the tooth pocket 110 and forms a bottom surface of the teeth groove 110a to be in contact with the tips of the teeth. In this embodiment, the tooth contact surface 121 of the guard core 120 has a shape in which an end portion of teeth arranged continuously from any one of the left teeth of the teeth to any one of the right teeth of the tooth is stamped .

6, the tooth contact surface 121 of the guard core 120 has a tooth contact surface 121a having a cut surface of an anterior tooth T2 and a tooth contact surface (tooth contact surface) having an occlusal surface of the tooth T1, (Central teeth, lateral teeth, and canines) constituting the anterior portion are engaged with the portions where the frontal contact surfaces 121a are formed (portions covering the frontal portions), and portions At least one of the postures constituting the posterior portion is matched or matched.

Therefore, when the mouth guard 100 is attached to the teeth (upper teeth), the guard core 120 serves as a fitting criterion of the teeth and the mouth guard, and maintains the basic rigidity of the mouth guard.

In this embodiment, at the left end and the right end of the guard core 120, the occlusal surfaces of the left and right quadrants (first premolar) to 6th molar (first molar) of the upper teeth are transferred And the occlusal surface of the remaining molar teeth may contact the tooth pocket 110, in particular, the inner surface of the pocket base 113, but is not limited thereto.

The tooth pocket 110 is a multi-layered structure as described above, and the second pocket layer 102 of the tooth pocket has impacts on the teeth, that is, the upper teeth and the lower teeth, The first pocket layer 101 is a hard layer formed on the outer side of the second pocket layer 102, that is, a hard hard guard layer. In this embodiment, The first pocket layer 101 forms an outer layer of the guard frame 100A.

As described above, when the mouse guard 100 is attached to the upper teeth as in the present embodiment, the relative value becomes the lower teeth, and when the mouse guard 100 is attached to the lower teeth, the relative value becomes the upper teeth. Do.

Since the first pocket layer 101 is directly laminated on the outside of the second pocket layer 102, the second pocket layer 102 is covered with the first pocket layer 101 However, another layer may be further provided between the first pocket layer 101 and the second pocket layer 102 as described above.

When the mouth guard 100 is attached to the teeth and is installed in the oral cavity, the inside surface of the lid wall 111 and the innermost surface of the net side wall 112 are connected to the front side of the teeth .

In the present embodiment, the lid side wall 111, the net side wall 112, and the pocket base 113 are all-in-one layered structures having the first pocket layer 101 and the second pocket layer 102 described above, The inner surface of the lid wall 111 and the innermost sidewall 112 and the inner surface of the pocket base 113 (the mounting surface of the guard core) are made of the second pocket layer 102 to be soft and the outer side of the tooth pocket The outer surface of the lid side wall 111 and the outer side wall 112 and the outer surface of the pocket base 113 constitute the first pocket layer 101 and become rigid. Therefore, the guard frame of the mouth guard according to the present embodiment has a structure in which both side walls are thinner than the bottom layer.

The guard core 120 may be a single layer or a multi-layered structure. For example, the guard core 120 may be composed of only a hard hard layer or a multilayer including a hard layer and a soft layer. The soft layer can improve the cushioning action, that is, the cushioning action. The portion of the guard nose 120 that abuts against the teeth, that is, the tooth contact surface, is composed of a hard layer.

In order to enhance the integrity of the guard core 120 and the tooth pocket 110 when the guard core 120 is a multilayer, a layer in contact with the inner surface of the pocket base 113 of the guard core It may be made of the same material as the inner surface of the pocket base (the second pocket layer in this embodiment).

In this embodiment, the first pocket layer 101 may be made of a hard dental resin material such as a hard resin, for example, a hard silicone resin, and the second pocket layer 102 may be made of a soft silicone resin Dental Resin is a hard resin sheet and soft resin sheet sold by various companies such as ERKODENT in Germany and FORESTADENT in Germany. And polyethylene terephthalate glycols (PETG). Specific examples of the soft dental resins include EVA (Ethylene Vinyl Acetate) and thermoplastic polyurethane (TPU). 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.

The lid wall 111 and the net side wall 112 are in a two-layer structure and are elastically brought into close contact with the back surface (front side) and the front side (front side / narrow side) . The lid side wall and the net side wall are formed at a height not exceeding the cervical portion (boundary between the teeth and the gum), and the lid-side cover 131 has a height not exceeding the lingual cervical portion. For example, the edge of the lid-side cover 131 may have the same height as the lid side wall 111 or may exceed the range of 3 mm or less. Referring to FIGS. 2 and 3, it can be seen that the net wall 112 of the tooth pocket is formed to be lower than the gum protector 132b to prevent contact with the gum, and consequently, The lips and the gums facing the balls are covered only by the gum-protecting portion 132b.

In the present invention, the second pocket layer 102 reduces excessive fitting force of the mouth guard 100 to prevent damage to the tooth surface when the mouth guard 100 is attached and detached, and at the same time, The first pocket layer 101 maintains the rigidity and durability of the mouth guard 100 while preventing damage to the mouth guard 100 and prevents the mouth guard 100 from being loosened by a long period of use Delay.

8 and 9, the mouth guard 100 according to the present invention includes upper and lower facing grooves 113a and 113b formed on the outer surface of the pocket base 113, that is, on the outer surface of the first pocket layer 101, 113b (hereinafter, abbreviated as "bite groove").

In other words, the grooves 113a and 113b are formed on the surface of the mouth guard 100 in such a manner that the relative positions of the teeth on which the mouth guard is mounted (T3 and T4;

More specifically, the bite grooves 113a and 113b are formed on the bottom surface of the guard cover 130. The bite grooves 113a and 113b are formed on the undersurface of the mouth guard 100, And prevents the abnormality of the jaw joint by restricting the abnormal movement of the lower teeth with respect to the upper teeth while the wearer is holding the mouth guard 100. [

The bite groove includes a pregroove groove 113b having a cut surface of an anterior teeth T4 in a relative position to a posterior tooth groove 113a having a shape in which the occlusal surface of the tooth of the posterior tooth T3 is taken out of the relative teeth .

Hereinafter, an embodiment of a method of manufacturing a mouth guard according to the present invention will be described with reference to FIGS. 10 to 20. FIG.

The method for manufacturing the mouth guard 100 according to an embodiment of the present invention includes the steps of (a) forming the guard frame 100A and (b) forming the guard cover 130 . Thus, in step (b), the gutter protecting part 132b is formed to cover the guard frame 100A such that the gutter protecting part 132b is formed to be higher than the net side wall 112 of the tooth pocket 110, It can be seen that the guard cover 130 is molded outside the frame 100A.

The step (a) of forming the guard frame 100A includes a step (a1) of forming the guard core 120 and a step (a2) of forming the tooth pocket 110. In step (a2), the tooth pocket forming step is a step of stacking resin sheets in a multilayered structure on the outside of the guard core 120 so as to form both side walls (a sidewall and a net wall) and a pocket base 113) to the outside of the guard core (120).

In this embodiment, the step (a2) may include the step of forming a resin sheet having a plurality of layers including the hard first surface layer constituting one surface of the resin sheet and the second surface layer constituting the other surface of the resin sheet, And integrating the guard core and the resin sheet together.

The step (a) may be performed in a three-dimensional molding machine based on three-dimensional shape data that is performed on a real tooth model (tooth model) or designed using image data of the teeth (for example, ).

In the method of manufacturing a mouth guard according to the present embodiment, the guard cores 120 are manufactured on a physical tooth model. For this purpose, a user's tooth model, for example, an oral gypsum model is prepared. Of course, the guard cores may be designed / manufactured by a computer based on the patient's tooth image data as described above.

The teeth model can be generally manufactured using impression material and gypsum, or can be manufactured by three-dimensional molding (e.g., three-dimensional printing) based on image data of the oral structure of a patient, Itself is generally known in the art, so that further explanation is omitted.

Hereinafter, a real tooth model in a shape imitating the tooth, that is, a structure of a tooth to which the mouth guard is attached, will be referred to as a first tooth model M1, a real tooth model in a shape simulating the structure of a relative tooth will be referred to as a second tooth model M2 ).

To prepare the guard core 120 on the tooth model, particularly the first tooth model M1, a tooth model is prepared as shown in FIGS. 11 and 12. FIG. More specifically, the first tooth model M1 is disposed on the base plate P of the articulated link device, and the interlocking relationship between the first tooth model M1 and the second tooth model M2 is determined by the wearer The first tooth model M1 and the second tooth model M2 on the base plate P are aligned in an occlusal relationship such that the tooth-like teeth of the upper tooth model and the upper tooth model of the upper tooth model are as equal as possible.

In order to align the interlocking relationship between the first tooth model M1 and the second tooth model M2, a dental bite (not shown) for occlusal teeth in which the tooth marks of the lower and upper teeth of the wearer are stamped may be used.

The second tooth model M2 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. When the link bar L is rotated about the joint J after the second tooth model M2 is fixed to the link bar L, , The second tooth model M2 is rotated and separated from the first tooth model M1 as shown in FIG.

13 and 14, the guard core 120 may be fabricated on the first tooth model M1, and the guard core 120 may be formed on the first tooth model M2, A step of applying a dental resin, particularly a hard resin, to a tooth part of a tooth model and curing the resin part, or a hard resin sheet made of a resin sheet, for example, a single layer, is put on the first tooth model M1 to form a single layer .

In this embodiment, dental resins, more specifically, Methyl Methacrylate and Polymethyl Methacrylate are applied to the teeth of the first tooth model M1, 120 are formed into a shape having the tooth contact surface 121 described above.

The guard core 120 may be completed through a process of finishing the appearance, for example, a trimming process of polishing the surface and edges of the guard core.

After the guard core 120 is formed, a step of molding a layered structure for the tooth pocket 110, that is, the layered structure S1 for a tooth pocket, is performed.

15 and 16 and 19, the above-described layered structure S1 for a tooth pocket is formed on the surface of the tooth model M1 by using a multilayered resin sheet R1 having a hard layer and a soft layer, do.

The first teeth model M1 in which the guard cores 120 are aligned so that the soft layer of the resin sheet R1 contacts the guard cores 120, A step of molding the layered structure S1 for a tooth pocket is carried out by bringing the resin sheet R1 of the multiple layers into close contact with each other.

That is, as shown in FIG. 19 (a), on the first tooth model M1 on which the guard cores 120 are disposed, the soft layer is directed to the first tooth model M1, Layer structure S1 is formed when the resin sheet 220 is placed on the surface of the first tooth model M1 so as to cover the guard core 120 after arranging the tooth core R1.

To this end, the resin sheet R1 is adhered to the surface of the first tooth model M1 in a state softened by heat in an adsorption or pressurizing manner and then hardened by cooling, as shown in FIG. 19 (b) Layer structure S1 of the tooth pocket is molded, and the guard core 120 is embedded in the inside of the multi-layered structure S1 of the tooth pocket.

Then, a process of cutting out the multi-layered structure S1 for a tooth pocket formed on the surface of the first tooth model M1 to finish the appearance of the tooth pocket 110, that is, a process of trimming the surface of the tooth pocket and trimming The guard frame 100A having the tooth pockets 110 and the guard cores 120 in a multilayered structure in which the outer surface is hard and the inner surface is soft as shown in Fig. 19C can be completed.

A more specific example of molding the tooth pocket 110 is as follows. The shape of the first tooth model M1 on which the guard cores 120 are disposed after softening the multilayered resin sheet including the hard layer and the soft layer (for example, model name TRACK B of FORESTADENT, Germany) When the resin sheet is adhered to the first tooth model M1 on which the guard core 120 is disposed by suction or pressurization so as to be transferred to the sheet at a negative angle, Is integrated with the molded product S1. The guard frame 100A is formed on the first tooth model M1 by cutting out the multi-layer structure S1 for a tooth pocket and finishing the external appearance of the tooth pocket.

The model name TRACK B of Germany FORESTADENT, which is an example of the above-described multilayer sheet, can be softened by heat, and the layered structure S1 for tooth pockets is manufactured using a thermocompression transferring device (for example, TRACK, model name of FORESTADENT, Germany) .

As a concrete example of the material constituting the hard layer in the resin sheet, PETG material can be exemplified. Examples of the material constituting the soft layer include EVA material and TPU material, but the specific material is not limited to the above-mentioned kind.

The above-mentioned double-layered sheet is a thermoplastic sheet softened softly so that it can be formed by applying heat, and pressed when pressed against the tooth model, and hardened as it is cooled.

17, 18, and 20, a resin sheet having a soft layer, for example, a soft resin sheet made of a single layer is used to apply the above-described guard cover structure S2 Is formed.

More specifically, as shown in FIGS. 17 and 20 (d), the flexible resin sheet is brought into close contact with the tooth model, that is, the first tooth model M1 in which the guard frame 100A is covered, A step of molding the drag structure S2 is performed.

The guard covering structure S2 may be performed in the same manner as the tooth pocket forming method. That is, when the soft resin sheet is adhered to the surface of the first tooth model M1 in a state softened by heat in an adsorption or pressurizing manner and then hardened by cooling, as shown in FIGS. 17 and 20 (d) The guard cover structure S2 is molded and the guard frame 100A is embedded in the guard cover structure S2.

When the guard pocket structure S2 formed on the first tooth model M1 is cut to finish the outer surface of the guard cover 130, that is, the trim cover is trimmed, 18 and 20 (e), the mouse guard 100 according to an embodiment of the present invention can be completed.

As an example of the resin sheet for the guard cover, TRACK E (EVA material), model name of FORESTADENT, Germany, may be used. Of course, since various soft sheets of other manufacturers are known, examples of the resin sheet for guard covers are not limited to those described above.

In order to form the above-mentioned facing grooves 113a and 113b on the outer surface of the guard cover 130, the guard covering structure S2 is formed on the first tooth model M1 The engaging grooves 113a and 113b of the above-described embodiment can be formed by stamping the second tooth model M2 on the outer surface of the guard covering structure S2 corresponding to the occlusal relationship between the upper and lower jaws, Accordingly, the occlusal relationship between the upper teeth and the lower teeth can be as popular as the mouth guard. The formation of the engaging grooves 113a and 113b is performed before the guard covering structure S2 is hardened, i.e., softened.

As described above, the mouth guard according to the present invention may be manufactured using a real tooth model of a wearer (user) as described above, or may be designed on a computer using CAD / CAM, Dimensional shape data of the three-dimensional molding machine may be transmitted to the three-dimensional molding machine to be manufactured in the three-dimensional molding machine.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them.

Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

100: Mouse guard 100A: Guard frame
110: tooth pocket 111:
112: net side wall 113: pocket base
120: Guard core 130: Guard cover
131: lingual cover 132:
132a: Proximal base part 132b: Gum protector

Claims (12)

An Arch type guard frame formed with tooth grooves for engaging teeth; And
And a guard cover laminated on an outer surface of the guard frame, the guard guard comprising:
The guard cover
A lid-side cover laminated on the lingering side of the guard frame; and a side cover which is integrally formed with the lingual side cover and is stacked on the side of the guard frame and higher than the lid side cover;
Side cover,
A forward side base portion which overlaps the forward side of the guard frame,
And a gingival protector extending upwardly and downwardly from the proximal base portion so as to cover the gum in contact with the gum;
The guard frame comprising:
A mouthpiece-shaped tooth pocket which forms the tooth groove and is accommodated in the guard cover,
A guard core having a tooth contact surface of a shape in which an end portion of the teeth is transferred, the guard core being provided in the tooth groove;
Wherein the tooth pocket comprises:
A lid wall which is covered by the lid-side cover to contact the lingual side of the teeth and forms one side wall of the guard frame,
A net side wall which is covered by the outboard base portion and forms another side wall of the guard frame,
And a pocket base connecting the lid side wall and the net side wall;
The net side wall of the tooth pocket is lower than the gum protection portion to prevent contact with the gum; Wherein the guard cover forms a shell of the mouse guard as a single layer of softness. delete The method according to claim 1,
Wherein a tooth contact surface is formed on one side surface of the guard core, the other side surface of the guard core is in contact with the bottom of the tooth groove, and both side surfaces of the tooth pocket form inner side surfaces of the tooth groove. . The method according to claim 1,
Wherein the tooth pocket is a layered structure including a rigid hard layer bonded to an inner side surface of the guard cover and a soft layer provided inside the rigid layer. delete delete The method according to claim 1,
Wherein the lid-side cover is flush with a lid wall of the tooth pocket forming one side wall of the guard frame. A method for producing a mouse guard according to claim 1,
(A) forming an arch-type guard frame in which the tooth groove is formed; And
And (b) covering the guard frame by molding the guard cover having the gum-protecting portion on the outside of the guard frame so that the gum-protecting portion is formed higher than the net side wall of the tooth pocket to protect the gum Wherein the method comprises the steps of: 9. The method of claim 8,
Wherein the step (a) comprises:
(A1) forming the guard core of the shape in which the end portions of the teeth are transferred; And
And (a2) molding the mouthpiece-shaped tooth pocket, which accommodates the guard cores and form both side walls of the tooth groove, on the outside of the guard cores. 10. The method according to claim 8 or 9,
Wherein the step (a) comprises: Wherein the three-dimensional modeling is performed on a real tooth model having the same structure as the teeth structure of the teeth, or on a three-dimensional molding machine based on three-dimensional shape data designed using image data of the teeth. 10. The method according to claim 8 or 9,
(B1) a step (b1) of forming a guard cover structure having a shape of the guard cover by fusing a soft resin sheet made of a single layer to the outside of the guard frame; And
And cutting the guard cover structure to finish the appearance of the guard cover (b2). delete

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