Mouthguard

Abstract

We provide a mouthguard that protects the teeth while being comfortable to use. [Solution] The mouthguard has an occlusal portion that contacts the occlusal surface of the dentition, which consists of multiple dentition portions; a right first dentition protection portion that rises from the occlusal portion and protects the surface of the right first dentition portion of the dentition; a left first dentition protection portion that rises from the occlusal portion and protects the surface of the left first dentition portion of the dentition; a right second dentition protection portion that rises from the occlusal portion and is adjacent to the right first dentition protection portion with a gap to the right; a left first dentition protection portion that rises from the occlusal portion and is adjacent to the left second dentition protection portion with a gap to the left; and a first gap between the right anterior tooth protection portion and the left anterior tooth protection portion, which is a gap to avoid the upper lip frenulum.

Description

Technical Field

[0001] The present invention relates to a mouthguard.

Background Art

[0002] A mouthguard, sometimes called a mouthpiece, is used not only for dental orthodontics but also, for example, in sports, and its applications are wide-ranging. In particular, it may be used in so-called contact sports such as rugby, American football or martial arts.

[0003] Therefore, the mouthpiece disclosed in Japanese Patent Application Laid-Open No. 2018-192217 has "two layers, an inner layer 2 and an outer layer 3. The inner layer 2 is formed such that when the mouthpiece 1 is attached to the patient's dentition, its inner surface 2a faces the dentition."

[0004] [[ID=2O]]However, the above-mentioned mouthpiece only protects a part of the teeth and does not protect the entire teeth. Therefore, there is a need for a mouthguard that can protect the dentition and be used without discomfort when used in so-called contact sports.

Prior Art Documents

Patent Documents

[0005] Japanese Patent Application Laid-Open No. 2018-192217

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention has been made in view of the above circumstances, and the problem thereof is to provide a mouthguard that can protect the dentition and be used without discomfort.

Means for Solving the Problems

[0007] To solve the aforementioned problems, the mouthguard of the first perspective has an occlusal portion that contacts the occlusal surface of the dentition, which consists of multiple dentition portions; a right first dentition protection portion that rises from the occlusal portion and protects the surface of the right first dentition portion of the dentition; a left first dentition protection portion that rises from the occlusal portion and protects the surface of the left first dentition portion of the dentition; a right second dentition protection portion that rises from the occlusal portion and is adjacent to the right first dentition protection portion with a gap to the right; a left first dentition protection portion that rises from the occlusal portion and is adjacent to the left second dentition protection portion with a gap to the left; and has a first gap between the right anterior tooth protection portion and the left anterior tooth protection portion, which is a gap to avoid the upper lip frenulum.

[0008] To solve the aforementioned problems, the second mouthguard comprises an occlusal portion that contacts the occlusal surface of the dentition, consisting of multiple dentition portions; a right first dentition protection portion that rises from the occlusal portion and protects the surface of the right first dentition portion; a left first dentition protection portion that rises from the occlusal portion and protects the surface of the left first dentition portion; a right first dentition protection portion that rises from the occlusal portion and protects the adjacent right second dentition protection portion with a gap on the right; and a front The structure includes a left first dentition protection area, a left second dentition protection area adjacent to it with a gap on the left, a right second dentition protection area rising from the occlusal area, a right third dentition protection area adjacent to it with a right second gap on the right, a left second dentition protection area rising from the occlusal area, and a left third dentition protection area adjacent to it with a left second gap on the left, and a first gap between the right anterior tooth protection area and the left anterior tooth protection area, which serves to avoid the upper lip frenulum.

[0009] Furthermore, the mouthguard from the third perspective has, in the first or second perspective, a right posterior second dentition protective portion that rises from the occlusal area and protects the back surface of the right second dentition within the dental arch, and a left posterior second dentition protective portion that rises from the occlusal area and protects the back surface of the left second dentition within the dental arch, and has a posterior gap between the right posterior second dentition protective portion and the left posterior second dentition protective portion that serves as a gap to avoid the tongue.

[0010] Furthermore, the mouthguard of the fourth perspective has, in the first or second perspective, a right lingual second dentition protective section that rises from the occlusal area and protects the back surface of the right second dentition within the dental arch, and a left lingual second dentition protective section that rises from the occlusal area and protects the back surface of the left second dentition within the dental arch, and has a lingual gap between the right lingual second dentition protective section and the left lingual second dentition protective section that provides a gap to avoid the tongue, and the right lingual second dentition protective section further protects the back surface of the right third dentition, and the left lingual second dentition protective section further protects the back surface of the left third dentition. [Effects of the Invention]

[0011] As described above, the present invention is configured and operates in such a way that it can provide a mouthguard that protects the teeth and can be used without discomfort. [Brief explanation of the drawing]

[0012] [Figure 1] This is a perspective view of a mouthguard. [Figure 2] This is a front view of the mouthguard. [Figure 3] This is a rear view of the mouthguard. [Figure 4] This is a plan view of the mouthguard. [Figure 5] This is a view of the underside of the mouthguard. [Figure 6] This is a left side view of the mouthguard. [Figure 7] This is a right-side view of the mouthguard. [Figure 8] This is a conceptual diagram of the user's mouth. [Figure 9] This is a conceptual diagram showing a mouthguard fitted inside the user's mouth. [Figure 10] This is a conceptual diagram showing a mouthguard fitted inside the user's mouth.

[0013] The mouthguard 10 of this embodiment will now be described. The mouthguard 10 of this embodiment is preferably placed in the oral cavity of user P and primarily protects the upper teeth 100. Here, user P's teeth 100 have multiple tooth rows. For example, the upper teeth 100 may have a right first tooth row portion 110R, a right second tooth row portion 120R, and a right third tooth row portion 130R, among the teeth arranged in the right R direction of user P's upper lip frenulum 300 in Figure 8. Also, the upper teeth 100 may have a left first tooth row portion 110L, a left second tooth row portion 120L, and a left third tooth row portion 130L, among the teeth arranged in the left L direction of user P's upper lip frenulum 300 in Figure 8. Note that the term "tooth row portion" may refer to one or more teeth. Furthermore, the right first dentition portion 110R may include the right anterior tooth 101R, and the left first dentition portion 110L may include the left anterior tooth 101L. Note that the right R direction refers to the right side in a frontal view, and the left L direction refers to the left side in a frontal view (see, for example, Figures 2 and 8).

[0014] Furthermore, the right second dentition portion 120R may refer to the dentition located in the right R direction of the user P's upper lip frenulum 300, which is not included in the right first dentition portion 110R and the right third dentition portion 130R. Similarly, the right third dentition portion 130R may refer to the dentition located in the right R direction of the user P's upper lip frenulum 300, which is not included in the right first dentition portion 110R and the right second dentition portion 120R.

[0015] Furthermore, the left second dentition portion 120L may refer to the dentition located in the left L direction of the user P's upper lip frenulum 300, which is not included in the left first dentition portion 110L and the left third dentition portion 130L. Also, the left third dentition portion 130L may refer to the dentition located in the left L direction of the user P's upper lip frenulum 300, which is not included in the left first dentition portion 110L and the right second dentition portion 120L (see Figure 8).

[0016] The mouse guard 10 of this embodiment is preferably made of synthetic resin, and an EVA material is preferred. Further, the mouse guard 10 has a biting part 20 arranged to contact the occlusal surface 220 of the dental arch 100. The biting part 20呈U-shaped in plan view and can be configured to follow the user's dental arch 100.

[0017] The mouse guard 10 of this embodiment has a right first dental arch protection part 30R that stands up from the biting part 20 and protects the surface of the right first dental arch part 110R. Further, the mouse guard 10 of this embodiment has a left first dental arch protection part 30L that stands up from the biting part 20 and protects the surface of the left first dental arch part 110L.

[0018] The right first dental arch protection part 30R has a right first base part 31R that stands up from the biting part 20 and a right first corner part 32R that呈angular shape on the right first base part 31R. The right first corner part 32R has a right first curved part 33R that呈curved shape to bend in the right R direction and a right second curved part 34R that呈curved shape with a smaller curvature than that, and has a right first pointed part 35R that呈a pointed shape of a right turn at the intersection of them (see, for example, FIG. 2).

[0019] The left first dental arch protection part 30L has a left first base part 31L that stands up from the biting part 20 and a left first corner part 32L that呈angular shape on the left first base part 31L. The left first corner part 32L has a left first curved part 33L that呈curved shape to bend in the left L direction and a left second curved part 34L that呈curved shape with a smaller curvature than that, and has a left first pointed part 35L that呈a pointed shape of a left turn at the intersection of them (see, for example, FIG. 2).

[0020] The right first base 31R and the left first base 31L are integrally connected, and the intersection C of the right first corner 32R and the left first corner 32L is concave, forming a first gap 37 between the right first tooth arch protection portion 30R and the left first tooth arch protection portion 30L. That is, the first gap 37 is configured to widen as it extends upward in the U direction due to the right first curved portion 33R of the right first corner 32R and the left first curved portion 33L of the left first corner 32L (see, for example, Figure 2).

[0021] The mouthguard 10 of this embodiment has a first gap 37, which allows it to avoid the user's upper lip frenulum 300. Therefore, since the mouthguard 10 of this embodiment is positioned to avoid interference with the upper lip frenulum 300, it can be fitted so that it reaches the user P's gums 400, and can be positioned to contact most of the user P's teeth 100, thus reliably protecting the user P's teeth 100. Furthermore, since the possibility of the mouthguard 10 coming into contact with the user P's upper lip frenulum 300 is minimized, a comfortable fit is achieved.

[0022] Furthermore, the mouthguard 10 of this embodiment has a right second dentition protection portion 40R that is erected to rise from the occlusal portion 20 and protects the surface of the right second dentition portion 120R. Furthermore, the mouthguard 10 of this embodiment has a left second dentition protection portion 40L that is erected to rise from the occlusal portion 20 and protects the surface of the left second dentition portion 120L.

[0023] The right second dentition protection portion 40R has a right second base portion 41R that rises up from the occlusal portion 20, and a right second corner portion 42R that is angular to the right second base portion 41R. The right second corner portion 42R has a right third curved portion 43R that is curved in the direction of the right R, and a right fourth curved portion 44R that is curved with a smaller curvature, and at the intersection of these, there is a right second pointed portion 45R that is pointed in a rightward curve.

[0024] The right first base 31R and the right second base 41R are integrally connected, and the space between the right first corner 32R and the right second corner 42R is concave, while a right gap 38R is formed between the right first dentition protection portion 30R and the right second dentition protection portion 40R. Specifically, the right gap 38R is located between the right second curve 34R of the right first corner 32R and the right third curve 43R of the right second corner 42R. Furthermore, the right second curve 34R and the right third curve 43R are connected in a continuous manner. This right gap 38R can be positioned to avoid interference with the convex portion of the gum 400.

[0025] The left second dentition protection portion 40L has a left second base portion 41L that rises up from the occlusal portion 20, and a left second corner portion 42L that is angular to the left second base portion 41L. The left second corner portion 42L has a left third curved portion 43L that curves in the direction of left L, and a left fourth curved portion 44L that has a curve with a smaller curvature, and at their intersection there is a left second pointed portion 35L that is, so to speak, a leftward-curving pointed shape.

[0026] The left first base 31L and the left second base 41L are integrally connected, and the space between the left first corner 32L and the left second corner 42L is concave, while a left gap 38L is formed between the left first dental arch protection portion 30L and the left second dental arch protection portion 40L. Specifically, the left gap 38L is located between the left second curve 34L of the left first corner 32L and the left third curve 43L of the left second corner 42L. Furthermore, the left second curve 34L and the left third curve 43L are connected in a continuous manner. This left gap 38L is positioned to avoid interference with the convex portion of the gum 400.

[0027] Furthermore, the mouthguard 10 of this embodiment has a right third dentition protection portion 50R that is erected to rise from the occlusal portion 20 and protects the surface of the right third dentition portion 130R. Furthermore, the mouthguard 10 of this embodiment has a right third dentition protection portion 50L that is erected to rise from the occlusal portion 20 and protects the surface of the left third dentition portion 130L.

[0028] The right third dentition protection portion 50R has a right third base portion 51R that rises up from the occlusal portion 20, and a right third corner portion 52R that is angular to the right third base portion 51R. The right third corner portion 52R has a right fourth curved portion 53R and a right end portion 54R that are curved in the direction of the right R, and has a right third pointed portion 55R that is pointed at the intersection of these portions.

[0029] The right second base 41R and the right third base 51R are integrally connected, and the space between the right second corner 42R and the right third corner 52R is concave, while a right second gap 48R is formed between the right second dentition protection portion 40R and the right third dentition protection portion 50R. Specifically, the right second gap 48R is located between the right third curve 43R of the right second corner 42R and the right fourth curve 53R of the right third corner 52R. Furthermore, the right third curve 43R and the right fourth curve 53R are connected in a continuous manner. This right second gap 48R is positioned to avoid interference with the convex portion of the gum.

[0030] The left third dentition protection portion 50L has a left third base portion 51L that rises up from the occlusal portion 20, and a left third corner portion 52L that is angular to the left third base portion 51L. The left third corner portion 52L has a left fourth curved portion 53L and a left end portion 54L that are curved in the left L direction, and a left third pointed portion 55L that is pointed at the intersection of these portions.

[0031] The left second base 41L and the left third base 51L are integrally connected, and the space between the left second corner 42L and the left third corner 52L is concave, while a left second gap 48L is formed between the left second dentition protection portion 40L and the left third dentition protection portion 50L. Specifically, the left second gap 48L is located between the left third curve 43L of the left second corner 42L and the left fourth curve 53L of the left third corner 52L. Furthermore, the left third curve 43L and the left fourth curve 53L are connected in a continuous manner. This left second gap 48L is positioned to avoid interference with the convex portion of the gum 400. Furthermore, it is preferable that the right first tooth arch protection part 30R, the right second tooth arch protection part 40R, the right third tooth arch protection part 50R, and the left first tooth arch protection part 30L, the left second tooth arch protection part 40L, and the left third tooth arch protection part 50L are each configured to gradually become thinner as they approach the gums in Figure 1, that is, when the mouthguard 10 of this embodiment is worn. This is because it can alleviate discomfort in the user's mouth.

[0032] Furthermore, the mouthguard 10 of this embodiment has a right posterior second dentition protection portion 60R that is erected to rise from the occlusal portion 20 and protects the posterior surface of the right second dentition. Furthermore, the mouthguard 10 of this embodiment has a left posterior second dentition protection portion 60L that is erected to rise from the occlusal portion 20 and protects the posterior surface of the left second dentition.

[0033] It is preferable that the right posterior second tooth arch protection portion 60R is positioned in a so-called front-and-back relationship with the right second tooth arch protection portion 40R and the right third tooth arch protection portion 50R. Similarly, it is preferable that the left posterior second tooth arch protection portion 60L is positioned in a so-called front-and-back relationship with the left second tooth arch protection portion 40L and the left third tooth arch protection portion 50L. Furthermore, there is a posterior gap 70 between the right posterior end portion 61R located in the left L direction of the right posterior second tooth arch protection portion 60R and the left posterior end portion 61L located in the right R direction of the left posterior second tooth arch protection portion 60L. It is preferable that the posterior gap 70 is positioned so as to be on the front-and-back side with the right first tooth arch protection portion 30R and the left first tooth arch protection portion 30L. In this way, the posterior gap 70 is positioned to avoid interference with the user P's tongue 600. Thus, the posterior gap 70 is positioned on the back side of the right first tooth arch protection portion 30R and the left first tooth arch protection portion 30L. Furthermore, it is preferable that the width of the posterior gap 70, that is, the space between the right posterior end 61R and the left posterior end 61L, be positioned between the canine teeth of user P when user P is wearing the mouthguard 10 of this embodiment. It is also preferable that the mouthguard has a posterior wall portion 75 that is on the posterior side of user P's anterior teeth, covering half the height of the anterior teeth and rising from the occlusal portion 20. In this case, it is preferable that the posterior wall portion 75 be configured to be lower in height than the height of the right posterior second dentition protection portion 60R and the left posterior second dentition protection portion 60L.

[0034] Furthermore, the right end 21R and the left end 21L of the occlusal portion 20, which has a U-shape in plan view, are configured so that the right third dentition protection portion 50R and the left third dentition protection portion 50L do not extend to them, respectively. Also, the right posterior second dentition protection portion 60R and the left posterior second dentition protection portion 60L do not extend to them. In other words, the right end 52R of the right third dentition protection portion 50R and the right posterior end 62R of the right posterior second dentition protection portion 60R are positioned to descend onto the occlusal portion 20 (see Figure 6), and the occlusal right end portion 21R is positioned there. Also, the left end 52L of the left third dentition protection portion 50L and the left posterior end 62L of the left posterior second dentition protection portion 60L are positioned to descend onto the occlusal portion 20 (see Figure 7), and the occlusal left end portion 21L is positioned there. Therefore, it is preferable that the occlusal right end 21R and occlusal left end 21L of the occlusal portion 20 occlude only with the user's molars and have no portion to protect the dentition. This is because if there is a portion to protect the dentition even with the molars, that portion may stimulate the user's molar portion 500R and 500L, potentially causing the user to gag.

[0035] The mouthguard 10 of this embodiment is fitted to the user P. The occlusal portion 20 is fitted so that it rests against the occlusal surface 220 of the dentition 100. At this time, the right first dentition portion 110R, the right second dentition portion 120R, and the right third dentition portion 130R are fitted against the right first dentition protective portion 30R, the right second dentition protective portion 40R, and the right third dentition protective portion 50R, respectively, and their respective surface portions are protected.

[0036] Thus, the right first dental arch protection part 30R can protect the right first dental arch portion 110R, including the user P's right anterior teeth. Furthermore, the right second dental arch protection part 40R can protect the right second dental arch portion 120R, which cannot be protected by the right first dental arch protection part 30R. In addition, the right third dental arch protection part 50R can protect the right third dental arch portion 130R, which cannot be protected by the right second dental arch protection part 40R.

[0037] Furthermore, the posterior portions of the right second dentition portion 120R and the right third dentition portion 130R are protected by the right posterior second dentition protective portion 60R. Therefore, the right second dentition portion 120R and the right third dentition portion 130R can be protected on both the front and back surfaces.

[0038] Furthermore, the left first dentition portion 110L, the left second dentition portion 120L, and the left third dentition portion 130L are each covered by the left first dentition protection portion 30L, the left second dentition protection portion 40L, and the left third dentition protection portion 50L, respectively, and their respective surface portions are protected. In this way, the left first dentition protection portion 30L can protect the left first dentition portion 110L, including the left front teeth of user P. The left second dentition protection portion 40L can protect the left second dentition portion 120L, which cannot be protected by the left first dentition protection portion 30L. Furthermore, the left third dentition protection portion 50L can protect the left third dentition portion 130L, which cannot be protected by the left second dentition portion 120L.

[0039] Furthermore, the posterior portions of the left second dentition section 120L and the left third dentition section 130L are protected by the left posterior second dentition protection section 60L. Therefore, the left second dentition section 120L and the left third dentition section 130L can be protected on both the front and back surfaces.

[0040] The mouthguard 10 of this embodiment has a first gap 37 that avoids contact with the user's upper lip frenulum 300. It also has a lining gap 70 that avoids contact with the user's tongue 600. The right gap 38R is positioned to avoid contact with the protruding portion of the gums 400. The right second gap 48R is also positioned to avoid contact with the protruding portion of the gums 400. The left gap 38L is also positioned to avoid contact with the protruding portion of the gums 400. The left second gap 48L is also positioned to avoid contact with the protruding portion of the gums 400. Furthermore, the occlusal right end 21R and occlusal left end 21L of the occlusal portion 20 only occlude with the user's molars and do not have a tooth arch protection portion, so the occlusal portion 500R and 500L of the user's mouth does not stimulate the user's mouth, reducing the risk of the user's gag reflex, i.e., retching. Thus, the mouthguard 10 of this embodiment protects the teeth 100 and can be used without discomfort. [Explanation of symbols]

[0041] 10 Mouthguards 20 Occlusal area 21R Right end of occlusion 21L Left end of occlusion 30R Right first dentition protection area 30L Left first dentition protection area 37 First gap 38R Right gap 38L Left gap 40R Right second dentition protection area 40L Left second dentition protection area 48R Right second gap 48L Left second gap 50R Right third dentition protection area 50L Left third dentition protection area 60R Right lingual 2nd tooth arch protection area 60L Left lingual second tooth arch protection area 70 Back gap 100 teeth 110R Right first tooth arch 110L Left first tooth arch 120R Right second tooth arch 120L Left second tooth arch 130R Right third tooth arch 130L Left third tooth area 220 Occlusal surface 300 Upper lip frenulum 400 Gums

Claims

1. The occlusal portion that contacts the occlusal surface of the dentition, which consists of multiple dentition segments, A right first dentition protection portion that rises from the occlusal portion and protects the surface of the right first dentition portion of the dentition, A left first dentition protection portion that rises from the occlusal portion and protects the surface of the left first dentition portion of the dentition, The right first dentition protection portion rises from the occlusal portion, and the right second dentition protection portion is adjacent to it, leaving a gap on the right. It has a left first dentition protection portion that rises from the occlusal portion, and an adjacent left second dentition protection portion that leaves a gap on the left side, A mouthguard having a first gap between the right front tooth protection portion and the left front tooth protection portion, which serves as a gap to avoid the upper lip frenulum.

2. The occlusal portion that contacts the occlusal surface of the dentition, which consists of multiple dentition segments, A right first dentition protection portion that rises from the occlusal portion and protects the surface of the right first dentition portion of the dentition, A left first dentition protection portion that rises from the occlusal portion and protects the surface of the left first dentition portion of the dentition, The right first dentition protection portion rises from the occlusal portion, and the right second dentition protection portion is adjacent to it, leaving a gap on the right. The left first dentition protection portion rises from the occlusal portion, and the left second dentition protection portion is adjacent to it, leaving a gap on the left. Rising from the occlusal portion is the right second dentition protection portion, and leaving a gap between them is the right second dentition protection portion, adjacent to the right third dentition protection portion. It has a left second dentition protection portion that rises from the occlusal portion, and an adjacent left third dentition protection portion that leaves a gap, which is the left second gap. A mouthguard having a first gap between the right front tooth protection portion and the left front tooth protection portion, which serves as a gap to avoid the upper lip frenulum.

3. A right posterior second dentition protective portion that rises from the occlusal portion and protects the posterior surface of the right second dentition within the dentition, It has a left posterior second dentition protective portion that rises from the occlusal portion and protects the posterior surface of the left second dentition within the dentition, The mouthguard according to claim 1 or 2, further comprising a back gap between the right back second tooth protection portion and the left back second tooth protection portion, which serves as a gap to avoid the tongue.

4. A right posterior second dentition protective portion that rises from the occlusal portion and protects the posterior surface of the right second dentition within the dentition, It has a left posterior second dentition protective portion that rises from the occlusal portion and protects the posterior surface of the left second dentition within the dentition, Between the right lining second tooth arch protection portion and the left lining second tooth arch protection portion, there is a lining gap that serves as a gap to avoid the tongue. The mouthguard according to claim 1 or 2, wherein the right rear second tooth arch protection portion further protects the back surface of the right third tooth arch, and the left rear second tooth arch protection portion further protects the back surface of the left third tooth arch.

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