JP7237288B1 - therapeutic mouthpiece - Google Patents

Abstract

[PROBLEMS] To provide a mouthpiece for treating SAS, which is flexible and excellent in wearability, allows the mouth to be sufficiently closed when worn, causes less foreign body sensation, and maintains the closed state of the mouth during sleep. matter. A lower jaw plate (10), an upper jaw plate (20), and a pair of elastic bands (30L, 30R); 13R; the maxillary plate 20 has a plate body 21, maxillary engaging portions 22L and 22R, and maxillary hooking portions 23L and 23R; , 21 is in the range of 1.0 to 3.0 mm. [Selection diagram] Fig. 2

Description

The present invention relates to mouthpieces for treating sleep apnea syndrome (SAS).

A mandibular plate attached to the mandibular dentition and a mandibular dentition as a device for treating obstructive sleep apnea syndrome, in which breathing is temporarily stopped due to obstruction of the airway due to subsidence of the tongue base during sleep. A mouthpiece (mandibular advancement device) that is separated from the maxillary plate attached to the mouth has been proposed (see Patent Document 1 below).

In each of the mandibular plate and the maxillary plate that constitute the mouthpiece described in Patent Document 1, when the mandibular dentition and the maxillary dentition are in occlusion, the mandibular plate moves forward relatively, and the maxillary plate moves relatively. A pair of left and right engaging portions (a lower engaging member and an upper engaging member) are provided so as to retreat.

According to this mouthpiece, the mandible can be advanced during sleep (at the time of occlusion), so that obstruction of the airway due to subsidence of the base of the tongue can be prevented.
In addition, by separating the mandibular plate and the maxillary plate, compared to the monoblock type mouthpiece that integrates these plates, the feeling of restraint when wearing it is less and it is easier to open the mouth (conversation and drinking water). ) is said to be possible.

FIG. 10 shows a lower jaw plate that constitutes the mouthpiece described in Patent Document 1, and FIG. 11 shows an upper jaw plate that constitutes this mouthpiece.

The mandibular plate 85 shown in FIG. 10 includes a plate body 86 mounted so as to cover the mandibular dentition, and a pair of left and right mandibular engaging portions (lower engaging portions) formed to protrude upward from the plate body 86. member) 87L and 87R.

The maxillary plate 95 shown in FIG. 11 includes a plate body 96 attached so as to cover the maxillary dentition, and a pair of left and right maxillary engaging portions formed to be engageable with the mandibular engaging portions 87L and 87R of the mandibular plate 85. It has joining portions (upper engaging members) 97L and 97R.

Each of the lower jaw plate and the upper jaw plate that constitute the mouthpiece described in Patent Document 1 is produced by building up a resin material such as a room temperature curing resin so as to cover the dentition of the patient's dentition model.
In this build-up process, the recesses on the outer side (labial side/buccal side), inner side (palatal side/lingual side), and occlusal side of the dental model are filled with a resin material to eliminate the unevenness of the dentition. Materials are stacked.

Each of the mandibular plate and the maxillary plate manufactured in this manner has smooth curved surfaces on its outer and inner sides (outer surface 861 and inner surface 862 of plate body 86 shown in FIG. 10, plate body 96 shown in FIG. 11). outer surface 961 and inner surface 962), and a smooth surface on the occlusal surface side (upper surface 863 of plate body 86 shown in FIG. 10, lower surface 963 of plate body 96 shown in FIG. 11) there is

Japanese Patent No. 4249392

[1] However, in the mandibular plate and the maxillary plate, which are manufactured by building up a resin material so as to cover the dentition in the dentition model, the thickness of the resin in the plate body covering the dentition is excessive .

When the thickness of the resin on the occlusal surface side becomes excessively large, the size of the mouthpiece in the vertical direction becomes large. Depending on the wearing time, it may lead to temporomandibular joint disorder.

In addition, the excessive thickness of the resin on the outer and inner sides of the dentition increases the size of the mouthpiece in the front-rear and left-right directions, causing a foreign body sensation when wearing the mouthpiece. In particular, due to the excessive thickness of the resin on the inner side (tongue side), it becomes impossible to secure a sufficient space for accommodating the tongue on the inner side of the mandibular plate. It may be difficult to prevent

In addition, when the thickness of the resin in the plate body becomes excessively large, the flexibility of the molded body is lowered, making it difficult to attach and detach the plate to and from the tooth row.
Furthermore, since the flexibility of the molded body is reduced, cracks may occur in the edges of the plate body due to external force associated with strong occlusion or teeth grinding that occurs unconsciously during sleep.

[2] In the mouthpiece described in Patent Document 1, in order to maintain the state in which the mandible is advanced using the engaging portions formed on the mandibular plate and the maxillary plate, the mandibular dentition and the maxillary It is necessary to maintain a state in which the dentition is in occlusion (a state in which the mouth is closed).
However, some patients wearing mouthpieces may have difficulty keeping their mouths closed during sleep, resulting in an inability to keep their mandibles advanced.

The present invention has been made based on the circumstances as described above.
The first object of the present invention is to treat sleep apnea syndrome, which has flexibility as a molded article, is excellent in wearability, can close the mouth sufficiently when worn, and has little foreign body sensation when worn. To provide a mouthpiece for
The second object of the present invention is to treat sleep apnea syndrome, which can keep the mouth closed during sleep and keep the mandible forward through the engaging part. To provide a mouthpiece for

[1] The therapeutic mouthpiece of the present invention is a resin mouthpiece for treating sleep apnea syndrome,
comprising a mandibular plate and a maxillary plate;
The mandibular plate has a plate body mounted so as to cover the mandibular dentition, and a pair of right and left mandibular engaging portions formed to protrude upward from the plate body,
The maxillary plate has a plate body mounted so as to cover the maxillary dentition, and a pair of left and right maxillary engaging portions formed to engage with the mandibular engaging portions,
The lower jaw engaging portion and the upper jaw engaging portion have a shape such that when they are engaged, the lower jaw plate advances and the upper jaw plate retreats,
The thickness of the resin in the plate bodies constituting the mandibular plate and the maxillary plate is in the range of 1.0 to 3.0 mm.

According to the therapeutic mouthpiece having such a configuration, since the thickness of the resin forming the plate body is 1.0 mm or more, the plate necessary for relatively moving the lower jaw and the upper jaw of the wearer can be used. Strength can be secured.
In addition, since the thickness of the resin in the plate body is 3.0 mm or less, it is possible to ensure the flexibility of the molded body.
As a result, the mouthpiece can be easily attached to and detached from the dentition, and even if the plate body is subjected to external force associated with strong occlusion or bruxism during attachment, damage such as cracks on the edge of the plate body will occur. can be prevented from occurring.
In addition, since the thickness of the resin on the occlusal surface side is 3.0 mm or less, the mouth can be completely closed when the mouthpiece is worn, and there is almost no feeling of a foreign body in the vertical direction.
In addition, since the thickness of the resin on the outside and inside is 3.0 mm or less, when the mouthpiece is worn, there is almost no foreign body sensation in the front-rear and left-right directions, and a sufficient space for accommodating the tongue can be secured. can be done.
Furthermore, the thickness of the resin forming the plate body is in the range of 1.0 to 3.0 mm. It offers a much better fit than traditional mouthpieces.

[2] In the therapeutic mouthpiece of the present invention, it is preferable that the thickness of the resin forming the plate body is in the range of 1.5 to 2.95 mm.

[3] In the therapeutic mouthpiece of the present invention, it is particularly preferable that the thickness of the resin forming the plate body is in the range of 1.0 to 1.95 mm.

[4] The therapeutic mouthpiece of the present invention is preferably made of a molded resin sheet.

By forming the resin sheet, it is possible to form a plate body having a small resin thickness and excellent thickness uniformity.

[5] In the therapeutic mouthpiece of the present invention, the plate body is formed so that the cervical line and gingiva on the lingual side (palatal side) of the tooth row are exposed. It is preferable to have a shape that covers only the portion.

According to the therapeutic mouthpiece having such a configuration, the wearer's tongue tip and lingual edge can be brought into contact with the tooth neck and gums, and the discomfort felt when the tongue tip and lingual edge contact the plate body ( discomfort) can be avoided.

[6] The therapeutic mouthpiece of the present invention includes a pair of left and right elastic bands (between the jaws) that are stretched between the mandibular plate and the maxillary plate and bias the mandibular and maxillary teeth in a direction to occlusion. rubber band),
The mandibular plate is provided with a pair of left and right mandibular latching portions located on the outside (lip side or buccal side) of the plate body in order to span the elastic band,
Preferably, the maxillary plate is provided with a pair of left and right maxillary latching portions located outside (lip side or cheek side) of the plate main body so as to span the elastic band.

According to the therapeutic mouthpiece having such a configuration, the mouth can be forcibly closed (occluded) by the biasing force of the elastic band during sleep (when worn). Thereby, the mandibular engaging portion and the maxillary engaging portion can be engaged to maintain the state in which the patient's mandible is advanced.

[7] In the therapeutic mouthpiece of [6] above, it is preferable that the mandibular hooking portion is arranged on the distal side (rear side) of the maxillary hooking portion.

According to the therapeutic mouthpiece having such a configuration, the biasing force by the elastic band is applied directly (ie, in the direction of engagement) in the direction of occlusion of the mandibular and maxillary teeth (vertical direction) and in the direction of advancing the mandible. The effect of the present invention can be promoted because the function can be made to act without intervening a part.

[8] In the therapeutic mouthpiece of [6] above, it is preferable that the mandibular hooking portion and the maxillary hooking portion are made of a hook-shaped or button-shaped (button-shaped with a bulging tip portion) resin member. .

According to the therapeutic mouthpiece having such a configuration, since the hooking portions (mandibular hooking portion and maxillary hooking portion) are made of the same type of “resin” as the constituent material of the plate body and the engaging portion, the plate body The hooking portion can be firmly fixed to the or engaging portion, and the hooking portion will not come off. In addition, since it is softer than metal, there is almost no discomfort when it comes into contact with the lips or cheeks.

[9] In the therapeutic mouthpiece of [6] above, the mandibular hooking portion and the maxillary hooking portion are made of hook-shaped or button-shaped (button-shaped with a bulging tip portion) metal members. good too.

According to the therapeutic mouthpiece of the present invention, since the mandible can be reliably advanced during sleep (during occlusion), obstruction of the airway due to subsidence of the base of the tongue can be prevented.
Since the therapeutic mouthpiece of the present invention has flexibility as a molded body, it is excellent in wearability, the mouth can be sufficiently closed when worn, and there is little foreign body sensation when worn.
In addition, due to its flexibility, it does not cause damage such as cracks even when subjected to external force associated with strong occlusion or bruxism that occurs unconsciously during sleep.

According to the therapeutic mouthpiece provided with a pair of left and right elastic bands for biasing the mandibular dentition and the maxillary dentition in the direction of occlusion, the mouth can be maintained in a closed state during sleep and engagement can be achieved. The mandible can be maintained in an advanced state via the portions (mandibular engaging portion and maxillary engaging portion).

Each plate of the mouthpiece according to the first embodiment is attached to the row of teeth, showing a state in which the wearer's mouth is open, (A) is a front view, (B) is a right side view, and (C) is a left side view. It is a plan view. Each plate of the mouthpiece shown in FIG. 1 is attached to the row of teeth and shows a state in which the wearer's mouth is closed, (A) is a front view, (B) is a right side view, and (C) is a left side view. It is a diagram. 1 shows the shape of the lower jaw plate of the mouthpiece shown in FIG. 1, (A) is a front view, (B) is a right side view, (C) is a left side view, (D) is a plan view, and (E) is a bottom view. Figure (F) is a rear view. 1 shows the shape of the upper jaw plate of the mouthpiece shown in FIG. 1, (A) is a front view, (B) is a right side view, (C) is a left side view, (D) is a plan view, and (E) is a bottom view. Figure (F) is a rear view. 1. It is explanatory drawing (rear view) which shows the state with which each plate of the mouthpiece shown in FIG. 1 is mounted|worn with the row of teeth. 2 is an explanatory view showing that the upper jaw engaging portion is movable in the upper jaw plate of the mouthpiece shown in FIG. 1; FIG. Each plate of the mouthpiece according to the second embodiment is attached to the row of teeth, and the wearer's mouth is shown closed, (A) is a front view, (B) is a right side view, and (C) is a left side view. It is a plan view. The shape of the lower jaw plate of the mouthpiece shown in FIG. 7 is shown, (A) is a front view, (B) is a right side view, (C) is a plan view, and (D) is a bottom view. The shape of the upper jaw plate of the mouthpiece shown in FIG. 7 is shown, (A) is a front view, (B) is a right side view, (C) is a plan view, and (D) is a bottom view. The shape of the lower jaw plate of a conventionally known mouthpiece is shown, (A) is a front view, (B) is a right side view, (C) is a plan view, and (D) is a bottom view. The shape of the upper jaw plate of a conventionally known mouthpiece is shown, (A) is a front view, (B) is a right side view, (C) is a plan view, and (D) is a bottom view.

<First embodiment>
A mouthpiece 100 of this embodiment shown in FIGS. 1 to 6 is a mouthpiece for treating sleep apnea syndrome.

This mouthpiece 100 is spanned between a lower jaw plate 10 made of a resin molded body, an upper jaw plate 20 made of a resin molded body, and between the lower jaw plate 10 and the upper jaw plate 20 to form a lower jaw row D1 and a upper jaw row D2. The mandibular plate 10 comprises a plate body 11 mounted so as to cover the mandibular dentition D1, and a plate body 11 on the outside of the plate body 11. A pair of left and right mandibular engaging portions 12L, 12R and elastic bands 30L, 30R formed to protrude upward at positions facing each other across the midline of the plate body 11, and when spanning the mandibular plate 10 As hooking portions, a pair of left and right lower jaw hooking portions 13L and 13R made of button-shaped metal members positioned outside the plate body 11 are provided at positions facing each other across the midline of the plate body 11. The maxillary plate 20 has a plate body 21 attached to cover the maxillary dentition D2, and a mandibular engaging portion at a position outside the plate body 21 and facing across the midline of the plate body 21. A pair of left and right upper jaw engaging portions 22L, 22R formed to be engageable with 12L, 12R, and elastic bands 30L, 30R as hooking portions for hanging over the upper jaw plate 20, sandwiching the midline of the plate body 21. and a pair of left and right upper jaw hooking portions 23L and 23R made of button-shaped metal members located outside the plate body 21; the lower jaw engaging portions 12L and 12R and the upper jaw engaging portion 22L and 22R have a shape such that when they engage with each other, the mandibular plate 10 advances and the maxillary plate 20 retreats; has a thickness in the range of 1.0 to 3.0 mm.
In FIGS. 1, 2 and 4, 24L and 24R are adjusting screws for adjusting the positions of the upper jaw engaging portions 22L and 22R with respect to the plate body 21, and thus the position (advance amount) of the lower jaw with respect to the upper jaw during occlusion. mechanism.

<Mouthpiece 100>
The mouthpiece 100 of this embodiment includes a lower jaw plate 10 made of a resin molded body, an upper jaw plate 20 made of a resin molded body, and a pair of left and right elastic bands (intermaxillary rubber bands) that span the lower jaw plate 10 and the upper jaw plate 20. ) 30L and 30R.

<Mandibular plate>
The lower jaw plate 10 constituting the mouthpiece 100 includes a plate body 11, a pair of left and right lower jaw engaging portions 12L and 12R formed outside the plate body 11, and a pair of left and right lower jaws positioned outside the plate body 11. It has hooking portions 13L and 13R.

A plate body 11 of the mandibular plate 10 is attached so as to cover the mandibular dentition D1.
As shown in FIG. 5A, the plate body 11 is formed so that the cervical line CL1 and the gingiva on the lingual side of the mandibular dentition D1 are exposed (not covered).
As a result, the wearer's tongue tip and lingual edge can be brought into contact with the tooth neck and gingiva of the mandibular dentition D1, and discomfort felt when the tongue tip and lingual edge come into contact with the plate body can be avoided. can.

The mandibular engaging portions 12L and 12R of the mandibular plate 10 are located outside (labial side or buccal side) of the plate body 11 and are positioned on the right and left sides of the plate body 11 facing each other across the midline of the plate body 11. It is formed (fixed) so as to protrude upward beyond the

The mandibular engaging portions 12L and 12R are engaged with the mandibular engaging portions 22L and 22R of the maxillary plate 20, respectively, to advance the mandibular plate 10 with respect to the maxillary plate 20 (extend the wearer's body). It has inclined engagement surfaces 125L, 125R on the distal side that are inclined in the occlusal direction (upward) toward the mesial direction (forward direction) so that the mandible can be advanced).

Each of the lower jaw hooking portions 13L and 13R is a hooking portion provided to span each of the elastic bands 30L and 30R on the lower jaw plate 10. As shown in FIG.
The lower jaw latching portions 13L and 13R are located outside (lip side or buccal side) of the plate body 11, and project to the outside of the plate body 11 at left and right positions facing each other across the midline of the plate body 11. It consists of a button-shaped metal member (lingual button).

<Maxillary plate>
The upper jaw plate 20 constituting the mouthpiece 100 includes a plate body 21, a pair of left and right upper jaw engaging portions 22L and 22R formed outside the plate body 21, and a pair of left and right upper jaws protruding outside the plate body 21. It has hooking portions 23L, 23R and adjusting screw mechanisms 24L, 24R for adjusting the positions of the upper jaw engaging portions 22L, 22R.

A plate body 21 of the maxillary plate 20 is attached so as to cover the maxillary dentition D2.
As shown in FIG. 5B, the plate body 21 is formed so as to expose (not cover) the cervical line CL2 and the gingiva on the palatal side of the maxillary dentition D2.
As a result, the wearer's tongue tip and lingual edge can be brought into contact with the tooth neck and gingiva of the maxillary dentition D2, and discomfort felt when the tongue tip and lingual edge come into contact with the plate body can be avoided. can.

The maxillary engaging portions 22L and 22R of the maxillary plate 20 are located outside (lip side or buccal side) of the plate body 21, and are located at right and left positions facing each other across the midline of the plate body 21. The mandibular engaging portion 12L , 12R.

The upper jaw engaging portions 22L and 22R are engaged with the lower jaw engaging portions 12L and 12R, respectively, to advance the lower jaw plate 10 with respect to the upper jaw plate 20 (which in turn advances the wearer's lower jaw). ), it has inclined engagement surfaces 225L, 225R on the mesial side that are inclined in the occlusal direction (downward) toward the distal direction (backward).

The lower jaw engaging portion 12L and the upper jaw engaging portion 22L, and the lower jaw engaging portion 12R and the upper jaw engaging portion 22R are so-called cam mechanisms that convert vertical movement into forward and backward movement.
When the mandibular dentition D1 and the maxillary dentition D2 are engaged (approach in the vertical direction), the slanted engagement surface 125L and the slanted engagement surface 225L are used as sliding surfaces, and the lower jaw engaging portion 12L and the upper jaw engaging portion are engaged. 22L slides (engages), and the lower jaw engagement portion 12R and the upper jaw engagement portion 22R slide (engage) with the inclined engagement surface 125R and the inclined engagement surface 225R as sliding surfaces.
As a result, the mandibular dentition D1 to which the mandibular plate 10 is attached advances relative to the maxillary dentition D2 to which the maxillary plate 20 is attached, and the lower jaw of the wearer advances.

Adjustment screw mechanisms 24L and 24R for adjusting the positions of the upper jaw engaging portions 22L and 22R with respect to the plate main body 21 are provided on the outer side (buccal side) of the plate body 21 and on the distal side of the upper jaw engaging portions 22L and 22R. are placed.

The upper jaw engaging portions 22L and 22R are not directly fixed to the plate body 21, but fixed to movable members of the adjusting screw mechanisms 24L and 24R, respectively. Thereby, the positions of the upper jaw engaging portions 22L and 22R with respect to the plate body 21 can be adjusted.
For example, by adjusting the adjusting screw mechanisms 24L and 24R from the state shown in FIG. , the distance between the plate body 21 (maxillary dentition D2) and the plate body 11 (mandibular dentition D1) at the time of occlusion can be increased in the front-rear direction, thereby adjusting the position of the lower jaw with respect to the upper jaw of the wearer. (Advance amount) can be increased.

Each of the upper jaw hooking portions 23L and 23R is a hooking portion provided to span each of the elastic bands 30L and 30R on the upper jaw plate 20. As shown in FIG.
The upper jaw latching portions 23L and 23R are buttons positioned outside the plate body 21 at left and right positions facing each other across the midline of the plate body 21 on the outside (lip side or cheek side) of the plate body 21. It consists of a metal member of the type.

<Thickness of resin forming plate body>
In the mouthpiece 100 of the present embodiment, the thickness of the resin forming the plate body 11 of the mandibular plate 10 (resin covering the mandibular tooth row D1), the thickness of the resin forming the plate body 21 of the maxillary plate 20 (covering the maxillary tooth row D2) The thickness of the resin) is in the range of 1.0 to 3.0 mm.

The thickness of the resin forming the plate body 11 and the plate body 21 is preferably in the range of 1.5-2.95 mm, more preferably in the range of 1.0-1.95 mm.

Since the thickness of the resin forming the plate main body 11 and the plate main body 21 is 1.0 mm or more, the plate strength necessary for relatively moving the lower jaw and the upper jaw of the wearer of the mouthpiece 100 is ensured. be able to.

By setting the thickness of the resin forming the plate main body 11 and the plate main body 21 to 3.0 mm or less, it is possible to sufficiently secure the flexibility of the resin molding. This allows the mandibular plate 10 and the maxillary plate 20 to flex and twist.

With such flexibility, the lower jaw plate 10 can be easily attached to and detached from the lower jaw row of teeth D1, and the upper jaw plate 20 can be easily attached to and removed from the upper jaw row of teeth D2. In addition, even if the plate body 11 or the plate body 21 receives an external force due to strong occlusion or bruxism during attachment, it is possible to prevent damage such as cracks from occurring on the edges of the plate body.

In addition, since the thickness of the resin on the occlusal surface side of the plate body (the upper surface side of the plate body 11 and the lower surface side of the plate body 21) is 3.0 mm or less, the mouth can be completely closed when the mouthpiece 100 is worn. and almost no feeling of a foreign object in the vertical direction.

In addition, since the thickness of the resin on the outside (labial side or buccal side) and inside (palatal side or tongue side) of the plate body 11 and the plate body 21 is 3.0 mm or less, when the mouthpiece 100 is worn,・There is almost no foreign body sensation in the left and right direction, and a sufficient space for accommodating the tongue can be secured.

Furthermore, the thickness of the resin forming the plate main body 11 and the plate main body 21 is in the range of 1.0 to 3.0 mm. (Unevenness shape on the outer surface, inner surface and occlusal surface side) can be reproduced, and it is possible to exhibit a remarkably excellent wearing feeling compared to the conventional mouthpiece.

<Method for making plate>
As a preferred method of manufacturing the lower jaw plate 10 made of a resin molded body, the plate body 11 is formed by contacting a resin sheet with a dental model and performing air pressure molding or vacuum molding. The lower jaw engaging portions 12L and 12R are formed by building up a resin material at predetermined positions facing each other across the line, and then the lower jaw engaging portions 12L and 12R are formed at predetermined positions facing each other across the midline of the plate body 11. A method of fixing 13L and 13R can be mentioned.

As a preferred method of manufacturing the maxillary plate 20 made of a resin molded body, the plate body 21 is formed by contacting a resin sheet with a dental model and performing air pressure molding or vacuum molding. The adjusting screw mechanisms 24L, 24R to which the upper jaw engaging portions 22L, 22R are attached are fixed at predetermined positions facing each other across the line, and then at predetermined positions facing each other across the midline of the plate body 21. , a method of fixing the upper jaw hooking portions 23L and 23R.

Examples of resin materials for forming the plate body 11 and the plate body 21 include copolyester, polycarbonate, polyester-polycarbonate blend, rigid polyurethane, polyamide, polyolefin, and the like. Among these, copolyesters and rigid polyurethanes are preferred, and glycol-modified copolyethylene terephthalate (PETG) is particularly preferred.

As a resin material for forming the lower jaw engaging portions 12L, 12R and the upper jaw engaging portions 22L, 22R, room temperature curing resin can be used.

<Elastic band>
The elastic band 30L that constitutes the mouthpiece 100 of the present embodiment is hung on the lower jaw blade 10 and the upper jaw blade 20 by being hooked on the lower jaw engaging portion 12L and the upper jaw engaging portion 22L. be
Further, the elastic band 30R is hooked on the lower jaw engaging portion 12R and the upper jaw engaging portion 22R, so that the elastic band 30R is stretched over the lower jaw blade 10 and the upper jaw blade 20. As shown in FIG.
As a result, the elastic band 30L and the elastic band 30R connect the lower jaw row of teeth D1 to which the lower jaw blade 10 (plate body 11) is attached and the upper jaw row of teeth D2 to which the upper jaw blade 20 (plate body 21) is attached. It can be biased in the occlusion direction.

By being biased by each of the elastic bands 30L and 30R, it is possible to maintain the state in which the mandibular dentition D1 and the maxillary dentition D2 are in occlusion (the mouth is closed), and the mandibular engaging portion 12L can be maintained. , 12R and the upper jaw engaging portions 22L, 22R, the state in which the lower jaw of the wearer is advanced can be maintained.

Here, the lower jaw hooking portions 13L and 13R are fixed to the right and left positions facing each other across the midline of the plate body 11, respectively.
For example, the mandibular hook 13L is attached to the outside of the plate portion covering the left second premolar (LL5), and the mandibular hook 13R is attached to the outside of the plate portion covering the right second premolar (LR5). It is

Also, the upper jaw hooking portions 23L and 23R are fixed to the left and right positions facing each other across the midline of the plate body 21, respectively.
For example, the upper jaw latch 23L is fixed to the outside of the plate portion covering the left canine (UL3) or first premolar (UL4), and the upper jaw latch 23R is attached to the right canine (UR3) or first premolar (UL4). UR4) is fixed to the outside of the plate portion covering.

As described above, the lower jaw hooking portions 13L and 13R are arranged on the distal side (rear side) of the upper jaw hooking portions 23L and 23R.
As a result, the biasing force of the elastic bands 30L and 30R is applied not only in the direction (vertical direction) for occlusion of the mandibular dentition D1 and the maxillary dentition D2, but also directly in the direction for advancing the mandible of the wearer (engagement portion). (without intervening).

According to the mouthpiece 100 of the present embodiment, the lower jaw of the wearer can be reliably advanced during sleep (at the time of occlusion), so obstruction of the airway due to subsidence of the base of the tongue can be prevented.
In addition, since the thickness of the resin forming the plate body 11 of the mandibular plate 10 and the plate body 21 of the maxillary plate 20 is in the range of 1.0 to 3.0 mm, particularly in the range of 1.0 to 1.95 mm, resin molding is possible. It has flexibility as a body and is excellent in wearability, the mouth can be closed sufficiently when worn, and the feeling of foreign matter when worn is extremely small.

In addition, since it has flexibility, it does not cause damage such as cracks even if it receives an external force associated with strong occlusion or bruxism that occurs unconsciously during sleep.
In addition, the elastic bands 30L and 30R for biasing the mandibular dentition D1 and the maxillary dentition D2 in the occlusal direction create a state in which the mandibular dentition D1 and the maxillary dentition D2 are in occlusion (a state in which the mouth is closed). ) can be maintained, and the state in which the lower jaw of the wearer is advanced can be maintained via the lower jaw engaging portions 12L, 12R and the upper jaw engaging portions 22L, 22R.

<Second embodiment>
A mouthpiece 200 of this embodiment shown in FIGS. 7 to 9 is a mouthpiece for treating sleep apnea syndrome.

The mouthpiece 200 spans the lower jaw plate 15 made of a resin molded body, the upper jaw plate 25 made of a resin molded body, the lower jaw plate 15 and the upper jaw plate 25, and divides the lower jaw row D1 and the upper jaw row D2. The lower jaw plate 15 comprises a plate body 16 mounted so as to cover the lower jaw row of teeth D1, and a plate body 16 outside the plate body 16. A pair of left and right mandibular engaging portions 17L, 17R and elastic bands 30L, 30R formed to protrude upward at positions facing each other across the midline of the plate body 16. As hooking portions, a pair of left and right lower jaw hooking portions 18L and 18R made of hook-shaped resin members positioned outside the plate body 16 are provided at positions facing each other across the midline of the plate body 16. The maxillary plate 25 has a mandibular engaging portion at a position outside the plate body 26 and opposite to the plate body 26 mounted so as to cover the maxillary dentition D2 across the midline of the plate body 26. A pair of left and right upper jaw engaging portions 27L, 27R formed to be engageable with 17L, 17R, and elastic bands 30L, 30R as hooking portions for extending over the upper jaw plate 25, sandwiching the midline of the plate body 26. and a pair of left and right upper jaw hooking portions 28L and 28R made of a hook-shaped resin member positioned outside the plate body 26; the lower jaw engaging portions 17L and 17R and the upper jaw engaging portion 27L and 27R have a shape such that when they engage with each other, the mandibular plate 15 advances and the maxillary plate 25 retreats; has a thickness in the range of 1.0 to 3.0 mm.
7 and 9, 29L and 29R are adjusting screw mechanisms for adjusting the positions of the upper jaw engaging portions 27L and 27R with respect to the plate body 26, and thus the position (advance amount) of the lower jaw with respect to the upper jaw during occlusion. .

The mouthpiece 200 of this embodiment includes a pair of lower jaw hooks 18L and 18R positioned outside the plate body 16 of the lower jaw plate 15 and a pair of lower jaw hooks 28L positioned outside the plate body 26 of the upper jaw plate 25. , 28R are made of hook-shaped resin members, which is different from the mouthpiece 100 of the first embodiment.

According to the mouthpiece 200 of this embodiment, the same effect as the mouthpiece 200 according to the second embodiment can be obtained.
Further, since the lower jaw hooking portions 18L, 18R and the upper jaw hooking portions 28L, 28R for extending the elastic bands 30L, 30R between the lower jaw plate 15 and the upper jaw plate 25 are respectively formed of a resin member, the plate body 16 And these hooking portions can be firmly fixed to the plate main body 26, and these hooking portions will not come off.

Also, the lower jaw hooking portions 18L, 18R and the upper jaw hooking portions 28L, 28R made of resin members are replaced by the hooking portions made of metal members (the lower jaw hooking portions 13L, 13R and the upper jaw hooking portion 23L constituting the mouthpiece 100). , 23R), so there is almost no discomfort when touching the lips or cheeks.

Although the embodiments of the present invention have been described above, the present invention is not limited to these and various modifications are possible.
For example, a button-shaped resin member (clear button) or a hook-shaped metal member (capping hook) can be used as the lower jaw hooking portion and the upper jaw hooking portion for extending the elastic band.

100 mouthpiece 10 lower jaw plate 11 plate body 12L, 12R lower jaw engaging portion 125L, 125R inclined engaging surface 13L, 13R lower jaw latching portion (button-shaped metal member)
20 maxillary plate 21 plate main body 22L, 22R maxillary engaging portion 225L, 225R inclined engaging surface 23L, 23R maxillary latching portion (button-shaped metal member)
24L, 24R Adjusting screw mechanism 30L, 30R Elastic band 200 Mouthpiece 15 Lower jaw plate 16 Plate main body 17L, 17R Lower jaw engaging portion 18L, 18R Lower jaw latching portion (hook-shaped resin member)
25 maxillary plate 26 plate main body 27L, 27R maxillary engaging portion 28L, 28R maxillary latching portion (hook-shaped resin member)
29L, 29R Adjusting screw mechanism D1 Mandibular dentition D2 Maxillary dentition

Claims (9)

A resin mouthpiece for treating sleep apnea syndrome,
comprising a mandibular plate (10) and a maxillary plate (20),
The mandibular plate (10) comprises a plate body (11) mounted so as to cover the mandibular dentition, and a pair of right and left mandibular engagement portions (12L) formed to protrude upward from the plate body (11). , 12R) and
The maxillary plate (20) includes a plate body (21) mounted so as to cover the maxillary dentition, and a pair of left and right maxillary engaging portions formed so as to be engageable with the mandibular engaging portions (12L, 12R). and a part (22L, 22R),
The lower jaw plate (10) advances and the upper jaw plate (20) retreats by engaging the lower jaw engaging portions (12L, 12R) and the upper jaw engaging portions (22L, 22R). has a shape like
A therapeutic mouthpiece, wherein the plate bodies (11, 21) constituting the mandibular plate (10) and the maxillary plate (20) have a resin thickness in the range of 1.0 to 3.0 mm. A therapeutic mouthpiece according to claim 1, characterized in that the thickness of the resin forming said plate body (11, 21) is in the range of 1.5 to 2.95 mm. A therapeutic mouthpiece according to claim 1, characterized in that the thickness of the resin forming said plate body (11, 21) is in the range of 1.0 to 1.95 mm. 2. The therapeutic mouthpiece according to claim 1, which is made of a molded resin sheet. The therapeutic mouthpiece according to claim 1, wherein the plate body (11, 21) is formed so that the cervical line and gingiva on the lingual side (palatal side) of the dentition are exposed. . It comprises a pair of left and right elastic bands (30L, 30R) that are stretched over the mandibular plate (10) and the maxillary plate (20) and bias the mandibular and maxillary dentitions in the direction of occlusion. ,
The lower jaw plate (10) is provided with a pair of left and right lower jaw hooks (13L, 13R) positioned outside the plate body (11) to span the elastic bands (30L, 30R),
The maxillary plate (20) is provided with a pair of left and right maxillary latching portions (23L, 23R) located outside the plate body (21) to span the elastic bands (30L, 30R). The therapeutic mouthpiece according to claim 1, characterized in that it has a 7. The therapeutic mouthpiece according to claim 6, wherein the lower jaw hooking portions (13L, 13R) are arranged on the distal side of the upper jaw hooking portions (23L, 23R). The therapeutic mouthpiece according to claim 6, wherein the lower jaw hooking portions (13L, 13R) and the upper jaw hooking portions (23L, 23R) are made of a hook-shaped or button-shaped resin member. 7. The therapeutic mouthpiece according to claim 6, wherein the lower jaw hooking portions (13L, 13R) and the upper jaw hooking portions (23L, 23R) are made of hook-shaped or button-shaped metal members.

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