JP3210257U - Clenching prevention device - Google Patents

Abstract

The present invention provides a clenching prevention device that can suppress the action of clenching and bruxism itself, is excellent in hygiene, and has little discomfort even when worn. A clenching prevention device 10 is made of a thermoplastic resin and mainly includes a pair of left and right occlusal portions 11 and a connecting portion 12 formed integrally with the occlusal portion 11. The occlusal portion 11 can be detachably fitted to a maxillary dentition fitting groove 13 that can be fitted to a part of the teeth of the maxillary dentition 21 and to a part of the teeth of the mandibular dentition 22. A lower jaw row fitting groove is formed. The thickness of the occlusal portion 11 is set so that when the clenching prevention device 10 is mounted, the upper dentition 21 and the lower dentition 22 do not come into contact with each other, and the wearer's closing muscle is in a relaxed state. . The connecting portion 12 has a curved shape along the palate side of the incisor of the maxillary dentition 21, and the outer surface of the connecting portion 12 contacts the palate side of the incisor of the maxillary dentition 21 when mounted. [Selection] Figure 1

Description

  The present invention relates to a clenching prevention device that can be worn in the oral cavity to prevent clenching and bruxism.

Clenching and bruxism not only puts a heavy burden on the teeth and wears and damages the teeth, but also includes temporomandibular disorders, headaches associated with muscle fatigue and tension, neck / shoulder pain, nerve pathway pain, etc. It is said to be a cause.
Therefore, conventionally, in the field of dentistry, a medical mouthpiece for reducing the impact caused by clenching or bruxism is known. By mounting such a medical mouthpiece, it is possible to reduce the burden on the teeth, jaws, etc. without applying a strong force directly to the teeth.

For example, Patent Literature 1 and Patent Literature 2 describe a bruxism prevention tool used as a kind of medical mouthpiece that is worn on a tooth during sleep.
Specifically, Patent Document 1 has a substantially U shape along the dentition, a protective portion that covers the occlusal surface of the tooth, and a locking portion that is provided continuously with the inner peripheral portion of the protective portion and covers the back side of the tooth. It is a bruxism prevention tool by which the upper layer of a protection part is formed in planar shape.
Patent Document 2 discloses a first holding part that is attached to the gingival part of the maxillary cheek band part, a second holding part that is attached to the gingival part of the lip band part of the upper jaw, and oral occlusion pressure by molars. The receiving occlusal surface fixing part to be received is integrally connected, and each of the first holding part and the second holding part is a bruxism prevention tool in which a recess for adsorbing to the gingival part is formed.

Japanese Patent No. 2919450 Japanese Patent No. 3032483

However, a medical mouthpiece such as a conventional bruxism prevention device as described in Patent Document 1 or Patent Document 2 is used by being attached to either the upper jaw side or the lower jaw side. It is not something that is held in a fixed state so as not to move. Therefore, when clenching or bruxism occurs, the impact can be mitigated through the bruxism prevention device, but the act of clenching and bruxism itself cannot be suppressed, and it is not a fundamental solution. It was.
In addition, clenching and bruxism may be performed not only during sleep but also when waking up during the day. However, the conventional medical mouthpiece has a problem that it is difficult to always use it continuously in daily life because it has a sense of incongruity when worn.

  Therefore, the present invention has been made in view of the above problems, and the object of the present invention is to suppress the act of clenching and bruxism itself, which is excellent in terms of hygiene and can be worn. An object of the present invention is to provide a clenching prevention device with a little discomfort.

According to the clenching prevention device of the present invention, the above-mentioned problem is a clenching prevention device made of a thermoplastic resin, and a groove for fitting and fixing at least one occlusal surface of a left molar on each of the upper surface and the lower surface. Connecting the left occlusion part, the right occlusion part having a groove for fitting and fixing the occlusal surface of at least one right molar to each of the upper surface and the lower surface, and the left occlusion part and the right occlusion part And the thickness of the left occlusion portion and the right occlusion portion can be inserted between the upper and lower teeth, and is configured by a distance that does not contact all the upper and lower teeth when installed in the oral cavity. To be solved.
As in the above configuration, the thickness of the right occlusion part and the left occlusion part having grooves for fitting and fixing the occlusal surfaces of the molars to the upper surface and the lower surface can be inserted between the upper and lower dentitions, It is in a mandibular resting position in which the upper and lower dentitions are configured at such a distance that the upper and lower dentitions do not come into contact with each other so that the masseter and temporal muscles are completely relaxed. The position of the lower jaw can be fixed in a state in which a gap corresponding to the thickness of the left and right occlusal portions is formed between them.
For this reason, the position of the lower jaw is fixed in a state of a resting gap, so that clenching and bruxism can be suitably suppressed, and the muscle tension is released without wearing or damaging the teeth. It suppresses muscle fatigue and can also eliminate temporomandibular disorders, headaches associated with muscle fatigue and tension, neck / shoulder pain, and nerve pathway pain.
In addition, maintaining the state of the resting gap improves mouth breathing to correct nasal breathing, and the lip is closed and the tongue apex is in the forward direction, which also improves sleep apnea syndrome due to tongue root depression. It is also possible to secure the supply of oxygen to the brain. In particular, improvement of mouth breathing also leads to prevention of diseases such as dentition irregularities, oral infection (periodontal disease), bronchial infection (aspiration pneumonia) and the like.
Further, by wearing the clenching prevention device of the present invention, the clenching and bruxing actions themselves become impossible. Therefore, by continuing to use it, it becomes a training to memorize the state of the resting gap in the closed muscle and to make a wrinkle.
Furthermore, the clenching prevention device of the present invention does not fit the entire dentition, but fits and fixes the occlusal part to the occlusal surfaces of the molars and premolars on both sides, and connects the occlusal part to the connecting part. It is connected. For this reason, since it can be worn without a sense of incongruity and is difficult to come off, it can be worn continuously not only during sleep but also in everyday life.

Moreover, it is suitable that the thickness of the said left occlusion part and the said right occlusion part exists in the range of 2 mm to 3 mm.
As in the above configuration, by setting the thickness of the left occlusion portion and the right occlusion portion within the range of 2 mm to 3 mm, the mandibular resting position in which the closed muscles such as the masseter and temporal muscles are completely relaxed and the upper jaw The position of the lower jaw can be fixed in a state where a gap corresponding to the thickness of the occlusal portion is formed between the dentition and the lower dentition.

In addition, it is preferable that the left occlusion portion and the right occlusion portion further include a groove that matches the shape of the canine or incisor.
By having a groove that matches the shape of the canine or incisor in the left occlusion and right occlusion as in the above configuration, not only the molars but also the canine and incisors fit into the occlusal groove when wearing Since it can be made to fix, it will become difficult to remove | deviate and it will become easy to fix in the state of a rest space | gap.

Moreover, it is suitable that the said connection part is a shape curved in the front direction.
As in the above configuration, the connecting part has a shape that curves in the forward direction, so that when connected, the connecting part comes into contact with the palate side of the maxillary incisor or the lingual side of the mandibular incisor. In addition to being able to be attached, it is difficult to come off and it is easy to fix in a state of a resting gap.

Further, it is preferable that the connecting portion has a shape that curves upward.
As in the above configuration, by connecting the connecting portion to a shape that curves upward, at the time of wearing, the connecting portion comes into contact with the hard palate in the upper part of the oral cavity, so that it can be worn without a sense of incongruity and is difficult to come off. It becomes easy to fix in the state of a resting gap.

Moreover, the said connection part is suitable as having a hollow part which hold | maintains a chemical | medical agent inside, and the space | gap which can ventilate the inside and outside of an oral cavity at the time of intraoral mounting | wearing.
As in the above configuration, by forming a hollow portion for holding the drug inside the connecting portion and forming an air-permeable gap that communicates between the inside and outside of the oral cavity when installed in the oral cavity, the canine teeth on the upper and lower jaw sides and It becomes possible to wear the dental bleaching agent (whitening agent) in a state where the dent side of the incisor contacts the lip side. For this reason, it can fix in the state of a rest space | gap, and can suppress a clenching and a bruxism suitably, and can simultaneously whiten a canine and an incisor. At this time, there is a breathable gap connecting the inside and outside of the oral cavity, so that breathing is not hindered.
In particular, unlike the conventional whitening mouthpiece, it is not necessary to fit the canine or incisor, and the clenching prevention device of the present invention can be fixed to fit the molar, so that the canine and incisor are recessed. It is only necessary to contact the whitening agent held in the part. Therefore, there is no sense of incongruity at the time of wearing, fatigue or pain of the temporomandibular joint. In addition, it is not necessary to fit the upper and lower whitening mouthpieces separately on the canine and incisor on the upper and lower jaws, and it can be attached simply by biting with the molars, so that the attachment is very easy.

  According to the clenching prevention device of the present invention, it is possible to provide a clenching prevention device that can suppress the act of clenching and bruxism itself, is excellent in terms of hygiene, and has little discomfort even when worn.

It is an approximate account figure showing an example of a clenching prevention device concerning the present invention. It is a top view which shows an example of the clenching prevention apparatus which concerns on this invention. It is a bottom view which shows an example of the clenching prevention apparatus which concerns on this invention. It is a perspective view which shows the state with which the clenching prevention apparatus which concerns on this invention was mounted | worn. It is a front view which shows the state which mounted | wore the clenching prevention apparatus which concerns on this invention. It is a bottom view which shows other embodiment of the clenching prevention apparatus which concerns on this invention. It is a front view which shows other embodiment of the clenching prevention apparatus which concerns on this invention. It is a top view which shows other embodiment of the clenching prevention apparatus which concerns on this invention. It is a bottom view which shows other embodiment of the clenching prevention apparatus which concerns on this invention. It is a perspective view which shows the state which mounted | wore the clenching prevention apparatus concerning other embodiment. It is a front view which shows the state which mounted | wore the clenching prevention apparatus concerning other embodiment.

Hereinafter, an embodiment (present embodiment) of the present invention will be described with reference to the drawings.
The present embodiment relates to a clenching prevention device 10 that can be worn in the oral cavity like a mouthpiece and can prevent clenching and bruxism.
In the following description, the upper jaw side of the clenching prevention device 10 is the upper side, the lower jaw side is the lower side, and the direction from the upper jaw side to the lower jaw side is referred to as the vertical direction. Also, the inside of the teeth is the palate side (for maxillary dentition) or the lingual side (for mandibular dentition), the outside is the labial side (for incisors and canines) or the buccal side (for premolars and molars) The one near the midline is called mesial, and the other side is called centrifuge. Moreover, the edge part of each tooth | gear is called a cutting edge (in the case of an incisor and a canine) or an occlusal surface (in the case of a premolar and a molar).

<Configuration of clenching prevention device 10>
First, the basic configuration of the clenching prevention device 10 according to the first embodiment will be described.
FIG. 1 is a schematic explanatory view showing an example of the clenching prevention device 10. FIG. 2 is a plan view of the clenching prevention device 10. FIG. 3 is a bottom view of the clenching prevention device 10.

  As shown in FIGS. 1 to 3, the clenching prevention device 10 is made of a thermoplastic resin having any one of elasticity, flexibility, and flexibility, and includes a pair of left and right occlusal portions 11 (left occlusal portion 11 a, right side). The occlusal portion 11b) and a connecting portion 12 formed integrally with the occlusal portion 11 are mainly configured.

The occlusal portion 11 (the left occlusal portion 11a and the right occlusal portion 11b) is a substantially rectangular parallelepiped member along a part of the maxillary dentition 21 and the mandibular dentition 22.
A surface (hereinafter simply referred to as “upper surface”) that contacts the maxillary dentition 21 and a surface (hereinafter simply referred to as “lower surface”) that contacts the lower dentition 22 when the clenching prevention device 10 is mounted are the upper dentition 21. And a plane having a contour shape slightly larger than the contour of each tooth of the lower jaw tooth row 22. In general, molars have a larger tooth profile than premolars, so that the plane of the occlusal portion 11 may be set wider on the distal side than on the mesial side.
Further, the thickness (length in the vertical direction) of the occlusal portion 11 can be inserted between the maxillary dentition 21 and the mandibular dentition 22, and when the clenching prevention device 10 is attached, Based on a thickness that does not come into contact with the lower jaw teeth row 22 and that the wearer's closing muscles (the masseter muscle, the temporal muscle, the medial pterygoid, the outer pterygoid superior) are relaxed, Set according to individual differences of each wearer.
This thickness is preferably set between 2 mm and 3 mm, although there are individual differences.

On the upper surface of the occlusal portion 11, there is formed an upper jaw row fitting groove 13 that can be fitted to a part of the teeth of the upper jaw row 21 so as to be freely assembled. On the lower surface of the occlusal portion 11, a lower jaw dentition fitting groove 14 that can be detachably fitted to a part of the teeth of the lower dentition 22 is formed.
Specifically, the maxillary dentition fitting groove 13 and the mandibular dentition fitting groove 14 are respectively the first molar teeth, the second premolars, the first premolars of the left and right of the maxillary dentition 21 and the mandibular dentition 22. It is formed at a position that can be fitted to the four teeth of the canine, and has a shape that matches the size of the teeth and the shape of the occlusal surface (or cutting edge).
In the present embodiment, the maxillary dentition fitting groove 13 and the mandibular dentition fitting groove 14 are fitted to four teeth of the first molar, the second premolar, the first premolar, and the canine. However, the present invention is not limited to this, and the corresponding teeth and the number of teeth can be changed as appropriate. For example, it is good also as making it fit in three teeth, a 1st premolar, a 2nd premolar, and a 1st premolar.

The connecting part 12 connects the pair of left and right occlusal parts 11 and is a long member formed integrally with the occlusal part 11. The connecting portion 12 is formed to have a thickness (length in the vertical direction) thinner than the occlusal portion 11. The shape of the connecting portion 12 is a curved shape (a shape that curves forward) along the palate side of the middle incisor and side incisor of the upper dentition 21, and when the clenching prevention device 10 is attached, The outer surface contacts the palate side of the central and side incisors of the maxillary dentition 21.
In addition, in this embodiment, although the connection part 12 was formed in the curved shape along the palate side of the central incisor 21 and the side incisor of the upper dentition 21, the tongue of the central incisor and the side incisor 22 of the lower dentition 22 It may be a curved shape along the side. Moreover, the length of the connection part 12 is also suitably changed with the length of the occlusal part 11 in the mesial distal direction, and there may be a configuration in which the palate side of the canine or premolar is also contacted.

The clenching prevention device 10 according to the present embodiment is installed in the oral cavity, so that it is necessary to reduce discomfort as much as possible and to sufficiently consider safety and hygiene. Therefore, a resin having a low water absorption is used as the thermoplastic resin that is the material of the clenching prevention device 10.
For example, a copolymerized polypropylene resin material containing 65 to 90% polypropylene by weight, 7 to 25% polyethylene or ethylene α-olefin copolymer, and other trace additives is used as a raw material of the clenching prevention device 10. Thereby, it is less likely to cause a sense of incongruity because of its elasticity and the like than acrylic resins and polycarbonate resins that have been conventionally used as dental molding resin materials, and it is difficult for bacteria to propagate because of its very low water absorption rate. Moreover, there is no resin allergic reaction to human body and no elution of harmful substances.

Here, a manufacturing method of the clenching prevention device 10 having the above-described configuration will be described.
1. The tooth shape of the wearer of the clenching prevention device 10 is collected (impression acquisition).
At this time, the wearer is in a mandibular resting position in which the masseter muscle, the temporal muscle, the medial pterygoid muscle, and the closing muscle of the lateral pterygoid muscle are completely relaxed, and between the upper dentition 21 and the lower dentition 22. Lightly bite an impression material such as silicon in a state where an appropriate gap is formed (state of resting gap), and extract accurate tooth types of the maxillary dentition 21 and the mandibular dentition 22, and the maxillary dentition 21 and the mandibular dentition. The interdental distance with 22 is determined.
2. The obtained impression is inserted into the plaster.
3. When the plaster has hardened, remove the impression from the plaster.
At this time, a plaster model in which accurate tooth types of the maxillary dentition 21 and the mandibular dentition 22 and a distance between the dentitions of the maxillary dentition 21 and the mandibular dentition 22 is determined is obtained.
4). A thermoplastic resin that is a raw material of the clenching prevention device 10 is poured into the plaster model.
5. When the resin as the raw material is hardened, the plaster model is broken and the clenching prevention device 10 which is a molded product is taken out.
Through the above steps, the size and thickness of the occlusal portion 11, the shape of the upper dentition fitting groove 13 formed on the upper surface of the occlusal portion 11 and the lower dentition fitting groove 14 formed on the lower surface, the length and shape of the connecting portion 12, etc. Thus, it is possible to obtain the clenching prevention device 10 having a shape in which all of these match the individual wearer.

<Usage aspect of clenching prevention device 10>
Next, a usage mode of the clenching prevention device 10 having the above configuration will be described.
FIG. 4 is a perspective view showing a state where the clenching prevention device 10 is mounted. FIG. 5 is a front view showing a state where the clenching prevention device 10 is mounted.

When the wearer wears the clenching prevention device 10 in the oral cavity, the wearer occludes the first molar teeth, the second premolars, the first premolars and the canines of each of the left and right upper teeth 21 and 22. It bites so that the part 11 may be inserted | pinched. Specifically, the above teeth of the maxillary dentition 21 are fitted in the maxillary dentition fitting groove 13, and the above teeth of the mandibular dentition 22 are fitted in the mandibular dentition fitting groove 14, whereby the occlusal portion 11. Are fixed to the maxillary dentition 21 and the mandibular dentition 22. At this time, the connecting portion 12 that connects the left and right occlusal portions 11 comes into close contact with the palate side of the central incisors and side incisors of the maxillary dentition 21.
As a result, as shown in FIG. 4 and FIG. 5, the mandibular resting position in which the closing muscles such as the masseter and temporal muscles are completely relaxed, and the clenching prevention device between the upper dentition 21 and the lower dentition 22 is shown. The position of the lower jaw in the state where the gap corresponding to the thickness of the ten occlusal portions 11 is formed, that is, in the state of the rest gap where the upper dentition 21 and the lower dentition 22 are not in contact with each other and an appropriate interdental distance is maintained. Can be fixed.

In this way, the position of the lower jaw is fixed in a state of resting gap, so it is possible to suitably suppress clenching and bruxism and to release muscle tension without wearing or damaging the teeth. It suppresses muscle fatigue and can also eliminate temporomandibular disorders, headaches associated with muscle fatigue and tension, neck / shoulder pain, and nerve pathway pain.
In addition, maintaining the state of the resting gap improves mouth breathing to correct nasal breathing, and the lip is closed and the tongue apex is in the forward direction, which also improves sleep apnea syndrome due to tongue root depression. It is also possible to secure the supply of oxygen to the brain. In particular, improvement of mouth breathing also leads to prevention of diseases such as dentition irregularities, oral infection (periodontal disease), bronchial infection (aspiration pneumonia) and the like.
Furthermore, by attaching the clenching prevention device 10, the positions of the upper dentition 21 and the lower dentition 22 are fixed in a state of resting clearance, so that the act of clenching and bruxism itself becomes impossible. Therefore, by continuing to use the clenching prevention device 10, it becomes a training to make the closed muscle memorize the state of the resting gap and to make a wrinkle.
Furthermore, the clenching prevention device 10 is not necessarily fitted and attached to all teeth of the maxillary dentition 21 and the mandibular dentition 22, but a part of the teeth (in this embodiment, the first molar, The occlusal part 11 is fitted and fixed to the occlusal surface or incision edge of the second premolar, the first premolar and the canine, and the connecting part 12 is the palate of the middle and side incisors of the upper dentition 21. It is in close contact with the side. For this reason, since the clenching prevention device 10 can be worn without a sense of incongruity and is difficult to come off, it can always be worn not only during sleep but also in everyday life.

In the present embodiment, the occlusal portion 11 is fitted and fixed to the occlusal surface or incision of the first molar, the second premolar, the first premolar and the canine, but the upper jaw of the occlusal portion 11 is fixed. Other teeth may be sufficient as the teeth fitted in the tooth row fitting groove 13 and the lower jaw tooth row fitting groove 14.
Further, the connecting portion 12 may be on the lingual side of the lower jaw dentition 22 instead of on the palate side of the upper dentition 21, or may be a position in close contact with the gums.

<Other embodiment (second embodiment)>
Next, another embodiment (second embodiment) of the present invention will be described with reference to the drawings.
FIG. 6 is a bottom view of the clenching prevention device 110 according to another embodiment. FIG. 7 is a front view of the clenching prevention device 110 according to another embodiment.

In this 2nd embodiment, the shape of the connection part 112 formed integrally with the occlusion part 111 differs from 1st embodiment mentioned above. That is, as shown in FIG.6 and FIG.7, the connection part 112 is formed in the state which protruded so that the left and right occlusion part 111 might draw an arc upwards, and the shape of the connection part 112 is the oral cavity upper part. This is a curved shape (a shape that curves upward) along the shape of the hard palate.
Thereby, when the clenching prevention device 110 is mounted, the upper surface of the connecting portion 112 comes into close contact with the hard palate at the upper part of the oral cavity. Therefore, even if it is the shape of the connection part 112 of this 2nd embodiment, it does not become obstructive at the time of mounting | wearing. Thus, by providing the variation of the connecting portion 112, the shape of the connecting portion 12 of the first embodiment or the connecting portion 112 of the second embodiment can be determined depending on the wearer's personal preference or feeling of discomfort. Can be selected.
In addition, the structure of the occlusion part 111, a raw material, a manufacturing method, a usage method, etc. are the same as the case of 1st embodiment.

<Other embodiments (third embodiment)>
Next, still another embodiment (third embodiment) of the present invention will be described with reference to the drawings.
FIG. 8 is a plan view of a clenching prevention device 210 which is still another embodiment. FIG. 9 is a bottom view of a clenching prevention device 210 which is still another embodiment. FIG. 10 is a perspective view showing a state in which a clenching prevention device 210 according to still another embodiment is mounted. FIG. 11 is a front view showing a state in which a clenching prevention device 210 according to still another embodiment is mounted.

  In the third embodiment, as shown in FIGS. 8 to 11, the clenching prevention device 210 is mainly composed of a pair of left and right occlusal portions 211 and a connecting portion 212 formed integrally with the occlusal portion 211. Although the point which is done is the same as the above-mentioned 1st embodiment and 2nd embodiment, the shape of the connection part 212 differs from 1st embodiment and 2nd embodiment which were mentioned above. Thereby, the clenching prevention device 210 according to the third embodiment is characterized in that it can curb clenching and bruxism and simultaneously whiten teeth.

The thickness of the occlusal portion 211 is based on a thickness that does not allow the upper dentition 21 and the lower dentition 22 to come into contact with each other and the closing muscle is relaxed when the clenching prevention device 210 is attached. The point set according to the individual difference of each wearer is the same as the first embodiment and the second embodiment.
Further, an upper jaw row fitting groove 213 that can be fitted to a part of teeth of the upper jaw row 21 is formed on the upper surface of the occlusal portion 211, and the lower portion of the lower jaw row 22 is formed on the lower surface of the occlusion portion 211. The lower dentition fitting groove 214 that can be detachably fitted to some teeth is the same as the first embodiment and the second embodiment, but the upper dentition fitting groove 213 is the same. The mandibular dentition fitting groove 214 is formed at a position where it can be fitted to two teeth of the first and second premolars on the left and right sides of the maxillary dentition 21 and the mandibular dentition 22, respectively.

The connecting portion 212 is formed integrally with the occlusal portion 211 on the mesial side so as to extend the end thereof, and connects the left and right occlusal portions 211 along the maxillary dentition 21 and the mandibular dentition 22. . Specifically, the upper connecting part 215 formed in a curved shape along the occlusal surface or cutting edge of the canine, side incisor, and middle incisor of the maxillary dentition 21, and the canine, side incisor and the mandibular dentition 22 It is comprised from the lower connection part 216 formed in the curved shape along the occlusal surface or cutting edge of a middle incisor.
The upper connecting portion 215 has a rising portion that protrudes upward along the buccal or lip side surface of the canine, side incisor, and middle incisor of the upper dentition 21, and the lower connecting portion 216 has a lower jaw It has a rising portion that protrudes downward along the buccal or labial surface of the first premolar, canine, side incisor, and middle incisor of the dentition 22.
On the upper surface and the rising portion of the upper connecting portion 215, a recess portion 217 for holding a whitening agent is formed at a location in contact with the canine tooth, the side incisor, and the middle incisor of the maxillary tooth row 21. Moreover, in the lower surface of the lower connection part 216 and the rising part, a recessed part 218 for holding a whitening agent is formed at a position in contact with the canine tooth, the side incisor, and the middle incisor of the lower jaw tooth row 22.
Further, the connecting portion 212 is a boundary between the upper connecting portion 215 and the lower connecting portion 216, and prevents clumping at a portion that does not contact the canine teeth, the side incisors, and the central incisors of the upper and lower dentitions 21 and 22. An air permeable gap 219 is provided through the inside and outside of the device 210.

The clenching prevention device 210 having the above-described configuration is used by being mounted in the oral cavity with the whitening agent being put in the recesses 217 and 218.
Specifically, when the wearer wears the clenching prevention device 210, the wearer sandwiches the occlusal portion 211 with the first and second premolars on the left and right sides of the maxillary dentition 21 and the mandibular dentition 22, respectively. Bite into. Specifically, the above teeth of the maxillary dentition 21 are fitted in the maxillary dentition fitting groove 213, and the above teeth of the mandibular dentition 22 are fitted in the mandibular dentition fitting groove 214, whereby the occlusal portion 211. Are fixed to the maxillary dentition 21 and the mandibular dentition 22.
At this time, the occlusal surface or incision surface of the canine, side incisor and middle incisor and the cheek or lip side surface are in close contact with the whitening agent held in the recesses 217 and 218 formed in the connecting portion 212. Touch.

Thus, the mandibular resting position in which the mouth muscles such as the masseter and temporal muscles are completely relaxed, and the gap corresponding to the thickness of the occlusal portion 211 of the clenching prevention device 210 between the maxillary dentition 21 and the mandibular dentition 22 is obtained. In other words, the position of the lower jaw can be fixed in a state of resting space in which the upper dentition 21 and the lower dentition 22 are not in contact with each other and an appropriate distance between the dentitions is maintained, so that clenching and bruxism can be achieved. While being able to suppress suitably, the whitening of the canine, the side incisor, and the central incisor of the upper jaw row 21 and the lower jaw row 22 can be performed simultaneously. In addition, since there is a gap 219 through which ventilation is possible, breathing is not hindered when the clenching prevention device 210 is attached.
In particular, it is not necessary to fit a canine or incisor like a conventional whitening mouthpiece, and the occlusal portion 211 is bitten by the first and second premolars of the left and right upper teeth 21 and 22 respectively. By fixing the teeth, the teeth to be whitened, such as canines, side incisors and intermediate incisors, need only be brought into contact with the medicine held in the recesses 217 and 218. Therefore, there is no sense of incongruity at the time of wearing, fatigue or pain of the temporomandibular joint.
In addition, unlike the conventional case, it is not necessary to fit the upper and lower whitening mouthpieces into the canine or incisor, and it is possible to attach by simply biting the occlusal portion 211 with the left and right first premolars and second premolars. Since it can, it is very easy to install.

In addition, the raw materials, the manufacturing method, and the like are the same as those in the first embodiment and the second embodiment.
The whitening agent is a dental bleaching agent, which is a drug in which a thickener composed mainly of hydrogen peroxide and made of an inorganic compound such as silica or glycerin is mixed.

The clenching prevention device of the present invention has been described with reference to the first embodiment to the third embodiment.
However, said embodiment is only an example for making an understanding of this invention easy, and does not limit this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes its equivalents.

DESCRIPTION OF SYMBOLS 10 Clinch prevention apparatus 11 Occlusion part 11a Left occlusion part 11b Right occlusion part 12 Connection part 13 Upper jaw dentition fitting groove 14 Lower jaw dentition fitting groove 15 Upper connection part 16 Lower connection part 17 Indentation part 18 Indentation part 19 Crevice 21 Upper jaw Dental row 22 Mandibular dentition 110 Bite prevention device 111 Occlusion portion 111a Left occlusion portion 111b Right occlusion portion 112 Connection portion 210 Cinch prevention device 211 Occlusion portion 211a Left occlusion portion 211b Right occlusion portion 212 Connection portion 213 Maxillary dentition fitting groove 214 Lower dentition fitting groove 215 Upper connecting part 216 Lower connecting part 217 Indented part 218 Indented part 219 Gap

Claims (6)

A clenching prevention device made of a thermoplastic resin,
A left occlusion portion having a groove for fitting and fixing at least one occlusal surface of the left molar on each of the upper surface and the lower surface;
A right occlusion portion having a groove for fitting and fixing an occlusal surface of at least one right molar on each of the upper surface and the lower surface;
A connecting portion for connecting the left occlusion portion and the right occlusion portion,
The thickness of the left occlusal portion and the right occlusal portion can be inserted between upper and lower dentitions, and is configured to be a distance that does not contact all the upper and lower dentitions when installed in the oral cavity. Prevention device.   2. The clenching prevention device according to claim 1, wherein thicknesses of the left occlusion portion and the right occlusion portion are in a range of 2 mm to 3 mm.   The clenching prevention device according to claim 1, wherein the left occlusion portion and the right occlusion portion further include a groove that matches a shape of a canine or incisor.   The clenching prevention device according to any one of claims 1 to 3, wherein the connecting portion has a shape that curves in a forward direction.   The clenching prevention device according to any one of claims 1 to 3, wherein the connecting portion has a shape curved upward. The clenching prevention device according to claim 1, wherein the connecting portion includes a hollow portion that holds a medicine on the inside and a gas-permeable gap that communicates between the inside and outside of the oral cavity when mounted in the oral cavity.

Images