JPH061165Y2 - Mouth guard - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is a mouth guard for reducing obstacles (tooth breakage, cleft lip, concussion, etc.) that occur during a collision such as when used in sports. It is about.

(Prior Art) Conventionally, in fighting sports such as boxing, American football, rugby, and ice hockey, the impact force is distributed to the dentition, the teeth are prevented from breaking by preventing contact with the mating teeth, and the mandibular bone is prevented. Mouth guards are used for the purpose of preventing fractures, lacerations of the lips, preventing displacement of the condyle in the glenoid by acting as a shock absorber that separates the upper and lower jaws, and preventing concussion. But,
Although the above effect is actually obtained by wearing the mouth guard, the feeling of foreign matter is large for the user, causing vomiting, difficulty in breathing, conversation is difficult, and the oral cavity is never dry. It cannot be said that the wearability is excellent, and the usage rate is very low except for some sports.

(Problems to be solved by the invention) In addition, the mouth guard used for the upper jaw is classified into stock type, mouse foam type and custom made type, and the stock type (made by latex rubber) is often used for boxers. However, unlike a mouthguard that has a holding power, it must be held firmly in the mouth by firmly biting with teeth, which interferes with breathing and conversation, and the biting is unstable, and,
Mouse foam type (soft allic resin, PVAC-PE
It is softened by heat and adapts the mouth guard to the teeth, and it is the most used at present, but it has a bad fit, it feels uncomfortable because it is bulky, conversation and breathing are difficult, and the wearability is low. Is. In addition, the custom-made type precisely forms only the minimum necessary part, and it is formed into a shape according to each individual in order to improve the wearing comfort and prevent damage. Mouth guards that meet the conditions that the people long for have not been formed. Here, the applicant, according to Japanese Utility Model Laid-Open No. Sho 60-9767, made the optimal state for the user, that is, compact so as to cover only the teeth as much as possible, eliminating discomfort, vomiting, breathing difficulty and conversation difficulty. We have provided a mouth guard that has been eliminated and has a high degree of obstacle prevention effect. The mouth guard has a shape in which the labial and buccal sides are covered in a state of covering the gingiva by about 2 mm from the cervical part of each tooth (excluding the third molar), and the palate side is not covered by the anterior tooth part (covers up to the cut end) ,
The molar part is shaped so as to cover up to the cervical part, and it is a mouth guard that is very comfortable to wear and has excellent cushioning properties (impact force is distributed and relaxed only by the molar part). However, custom-made mouth guards that are molded from elastic materials, including the mouth guard, must undergo various labor-intensive steps in the molding process (e.g., make a tooth model and make a prototype that fits the tooth model). , The original shape is moved up and down, front and back, left and right by an articulator to determine the approximate meshing surface shape, and the user actually wears it to make fine adjustments, etc.). It took time and labor, and it was difficult to provide at low cost.

The present invention has been made in view of the above points, and it is possible to sufficiently reduce the impact force, and to easily form a mouse according to the shape of each tooth in a simplified process. Intended to provide guard.

(Means for Solving Problems) The gist of the present invention for achieving the above-mentioned object is that the tooth contact surface side is formed of a thermoplastic substrate (1) having elasticity and the substrate (1) An outer surface portion of the mouthguard having a hollow portion is formed by fixing the peripheral portion of the deformable thin film sheet (2) to the outer peripheral portion, and the hollow portion is filled with a fluid such as liquid or gas. In the mouth guard, which is characterized in that the buffer portion (3) is formed.

(Operation) As described above, the mouth guard of the present invention includes the substrate (1) (elastic body that maintains its shape), the buffer (3) (fluid), and the thin film sheet (2).
Since the (deformable) three-layer structure is employed, the contact portion with respect to the lower molars, which is always opposed to any impact, is widened as a whole, and the cushioning degree is further increased. Further, also in manufacturing, by forming a tooth model, placing a thermoplastic substrate on the tooth model and heating and pressing from the top, a substrate (1) corresponding to the tooth shape can be formed, and various tooth shapes can be formed. The corresponding substrate (1) can be molded very easily, and the thin film sheet (2) that forms the outer surface of the mouthguard has its shape determined by adjusting the width according to the thickness of each tooth part of the mouthguard. It is sufficient that the thin film sheet (2) is fixed to the outer surface of the substrate so that a hollow portion can be formed and a mouth guard can be obtained by filling the hollow portion with a fluid, such as a conventional custom-made mouth guard. The troublesome work can be greatly reduced.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a partial sectional view at the time of mounting, FIG. 3 is a partial sectional side view of a central incisor (11) part, and FIG. FIG. 5 is a partially cutaway side view of the molar (15) part, and FIG. 5 is a partially cutaway side view of the second molar (17) part.

In the drawing, (1) is a base plate, which is a thin plate made of a thermoplastic material and forms a tooth-side contact part (including part of the gingiva) of the mouth guard, but the shape is the left and right third molars of the upper jaw. The labial buccal side of each tooth on the maxillary side except (18) is covered to a degree (about 2 mm) from the cervical part (5) to the gingiva (6),
The palate side covers the anterior teeth (central incisor (11), lateral incisor (12), canine (13)) only at the incisal end (7), and also the molar (first premolar).
(14), second premolar (15), first molar (16), second molar (1
(7) part is covered with the gingiva (6) barely, and the second molar (1)
The back end of 7) is not covered. The substrate
The forming means of (1) is not particularly limited, but it is suitable for various tooth shapes by cutting the extra part after heating and pressing the plate-shaped substrate on the user's tooth model made in advance. The board shape can be easily obtained.
(2) is a deformable thin film sheet, which has a hollow portion by fixing the thin film sheet (2) peripheral portion to the peripheral portion on the outer surface side of the substrate (1) in order to provide the buffer portion (3), The thin film sheet (2) forms the outer surface of the mouth guard. In addition, thin film sheet
The thickness of the hollow part, that is, the buffer part (3) varies depending on the shape (width) of (2), so if the thickness of the mouth guard is determined, it is necessary as appropriate at the stage when the shape of the substrate (1) is obtained. The width of a thin film sheet (2) is obtained. Further, the substrate (1) and the thin film sheet (2) have such strength that they will not be easily broken or holes will be opened even if a considerable force is applied. (3) is a buffer part, which is made of an elastic material in the case of a normal mouth guard to absorb the impact, but in the present invention, it has a structure for buffering by liquid or gas.
In that case, the lower jaw's meshing surface with each tooth can be contacted almost entirely, and the cushioning section (3) and the thin film sheet (2) will deform regardless of the meshing state, and the best meshing surface will always be obtained. can get. (Four)
Is a knob to which a strap is attached if necessary, and may be omitted. Incidentally, the mouth guard of the present embodiment has the substrate (1) having the above-mentioned shape, and as a shape for covering the minimum necessary portion, it is possible to eliminate foreign body feeling, discomfort and smoothly breathe and talk, but other The shape may be any, and the shape of the mouth guard is not particularly limited.

(Effect of the Invention) As described above, the mouth guard of the present invention can further enhance the buffering property by using the buffer member as a liquid or gas, and the effect of preventing various obstacles is very large. Is. In addition, since it can be manufactured relatively easily, it can be provided at low cost to consumers, it is effective not only for fighting sports but also for other athletes and pregnant women, and has an extremely high commercial value. It has a great effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 2 is a partial sectional view at the time of mounting. FIG. 3 is a partially cutaway side view of the central incisor (11). FIG. 4 is a partially cutaway side view of the second premolar (15) portion. FIG. 5 is a partially cutaway side view of the second molar part (17). 1 ... Substrate 2 ... Thin film sheet 3 ... Buffer part 4 ... Knob 5
… Tooth neck 6… Gingiva 7… Incision 11… Incision 12… Side incision 13… Canine 14… First premolar 15… Second premolar 16…
First molar 17 ... Second molar 18 ... Third molar

Claims (1)

[Scope of utility model registration request] 1. A tooth contacting surface side is formed of a thermoplastic substrate (1) having elasticity, and a peripheral edge portion of the deformable thin film sheet (2) is fixed to a peripheral edge portion of the outer surface side of the substrate (1). A mouth guard having a hollow portion and a buffer portion (3) formed by forming an outer surface portion of the mouth guard and injecting and filling a fluid such as liquid or gas into the hollow portion.