JP3153815U - Tongue and mandibular position training equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: Tongue which does not cause wobble and deviation, has a good wearing feeling, can be used in combination with other correction tools, is not easily affected by a difference in a wearer's oral shape, and can reduce adjustment costs. Providing position and mandibular position training equipment. A dentition fitting part that is made of a thermoplastic elastomer having flexibility and can be fitted to an upper dentition, and extends to the dentition fitting part and bulges downward. It is set as the structure which has the formed tongue position correction | amendment part. [Selection] Figure 1

Description

  The present invention relates to a tongue and mandibular position correction training device that is attached to the inside of an oral cavity and performs training for correcting the position of the tongue and mandible.

The so-called malocclusion in which the upper and lower dentitions are malformed is one of the factors that cause various symptoms such as temporomandibular disorders, opening disorders, swallowing disorders, and periodontal diseases.
At the time of occlusion, the position of the lower jaw relative to the upper jaw (occlusal position) is strongly related to the strength of the upper lip pressure and the position of the tongue inside the oral cavity. When the upper lip pressure is large, the upper jaw is guided backward. Further, when the tongue position is at a low position, the mouth is likely to remain open, and a force that pushes the lower jaw forward by the tongue acts.
Therefore, when the above-described state continues, the lower jaw protrudes forward from the upper jaw (mandibular front protrusion), and the so-called reverse occlusion is called a reverse occlusion where the lower teeth are positioned forward of the upper teeth. Causes occlusion.
In infants younger than 3 years old, even if the above symptoms occur, there is a possibility of spontaneous healing, but if the above symptoms continue beyond 3 years old, the natural cure rate Drops to around 6% and almost no natural healing can be expected.
In addition, since the lower jaw is not pressed down by the upper jaw, the lower jaw grows excessively, and the opposite occlusal state may further deteriorate.
Therefore, for infants after the age of 3 years, it is necessary to treat early and positively. Conventionally, this treatment is a method of forcibly urging the lower jaw position to the rear position by a headgear and a belt, and a wire. The mainstream is a method of correcting the dentition by, for example, and suffers from a large physical and mental burden on the infant who is the subject of treatment.

In order to solve the above problems, a mouthpiece-shaped tongue position and mandibular position correction training device that can be mounted on the upper jaw of the oral cavity has been used.
As shown in FIG. 3, the conventional tongue position and mandibular position correction training device 40 is extended to the dentition fitting part 42 that can be fitted to the upper dentition 41 and the dentition fitting part 42, and is below. A tongue position correcting portion 43 formed by bulging out, and the tooth fitting portion 42 is a planar U-shaped upper tooth contact surface portion 44 to which the lower end portion 43 of the upper tooth row 41 can approach. And a rising portion 46 that rises upward from the upper tooth row contact surface portion 44 and is disposed between the upper tooth row 41 and the back surface side of the upper lip portion 45.
The tongue position and mandibular position correction training instrument 40 is made of polymethyl methacrylate resin (PMMA resin), and has a hardness of 100 to 95 in terms of Rockwell hardness, and is very rigid.
Therefore, there is a problem that the feeling of discomfort when worn in the oral cavity 47 is large, and it is difficult to use with other correction devices.
In addition, an undercut portion is preferably provided between the rising portion 46 and the upper dentition contact surface portion 44 in order to further increase the degree of adhesion during mounting and prevent wobble and displacement. When the tongue position and mandibular position correction training instrument 40 is manufactured by molding, the undercut portion cannot be extracted from the mold because the synthesis of the tongue position and mandibular position correction training instrument 40 is high. It was difficult to form an undercut portion depending on molding.
Therefore, the fit at the time of wearing was bad, and there was also a problem of causing wobbling and deviation.
Furthermore, since it has high rigidity as described above, if it does not match the oral shape or dentition shape of the wearer, a part of the device may come into contact with the gums, etc., causing pain. Adjustments had to be made manually.
Therefore, the adjustment work for each wearer takes time, and there is another problem that the adjustment cost is high.

  The problem to be solved by the present invention is that there is no wobbling and deviation, the wearing feeling is good, it can be used together with other correction tools, and it is difficult to be affected by the difference in the oral shape of the wearer, the adjustment cost It is to provide a training device for correcting tongue position and mandibular position that can be reduced.

  In order to solve the above-mentioned problems, a tongue position and mandibular position correction training device according to the first aspect of the present invention is a tongue and mandibular position correction training device that is attached to the upper jaw of the oral cavity and corrects the tongue position and lower jaw position. It is made of a thermoplastic elastomer having flexibility, and is formed by a dentition fitting portion that can be fitted to the upper dentition, and extending to the dentition fitting portion and bulging downward. And a tongue position correcting portion.

  Therefore, when it is mounted inside the oral cavity, it is deformed in accordance with the wearer's oral cavity shape, dentition shape, etc., and is mounted in close contact with the upper jaw.

Further, in the tongue position and mandibular position correction training device according to the invention of claim 2, the dentition fitting portion is a planar U-shaped upper dentition proximity surface portion in which the lower end portion of the upper dentition can approach, and the upper teeth It rises upward from the row proximity surface portion, and is formed from a rise portion disposed between the upper tooth row and the upper lip portion back side, and has a U-shaped cross section between the rise portion and the upper tooth row proximity surface portion. The undercut portion is formed.
Accordingly, the rising portion is disposed more closely between the gum portion of the upper tooth row and the back side of the upper lip portion.

Further, the tongue position and mandibular position correction training device according to the invention of claim 3 is formed with a notch portion that can be fitted into the upper lip band at a substantially central portion in the circumferential direction on the peripheral surface portion of the rising portion. In addition, the tongue position correcting portion is provided with a notch portion that can be fitted into the tongue band.
Therefore, when worn, the notch fits into the upper lip band and the tongue band, and the rising part and the tongue position correcting part are more closely attached to the upper jaw inside the oral cavity.

Further, the tongue and mandibular position correction training device according to the invention of claim 4 includes upper and lower second deciduous teeth or second premolars when the tongue and mandibular position correction training device is mounted on the upper dentition proximity surface portion. The thickness dimension of the site | part with which a 1st molar is contact | abutting is formed larger than the thickness dimension of the other site | part.
The position of the second deciduous tooth or the second premolar and the first molar is a portion where the upper and lower dentitions are most strongly engaged in a normal engagement state.
Even if you are in the so-called reverse occlusion on a daily basis, by wearing this instrument, the lower jaw position is lowered backward and corrected to the normal meshing position, but because you are not used to meshing in the normal position The meshing state may become unstable.
The tongue and mandibular position at the time of mounting by making the thickness dimension of the upper dentition proximate surface portion corresponding to the contact position of the second deciduous tooth, or the second premolar and the first molar, larger than other parts. Since the orthodontic training device is strongly sandwiched between the upper and lower dentitions, the meshing state is stabilized.

  The tongue and mandibular position correction training device according to the invention of claim 5 is characterized in that the thermoplastic elastomer is a styrene resin.

According to the first and sixth aspects of the present invention, it is made of a thermoplastic elastomer having flexibility, and extends to the tooth row fitting portion that can be fitted to the upper tooth row and the tooth row fitting portion. Since the tongue position correcting portion is formed by bulging downward, the tongue and mandibular position correction training device is very small in accordance with the shape of the oral cavity and the shape of the dentition due to the flexibility of the thermoplastic elastomer. Transforms into
Therefore, it fits more into the oral cavity, does not cause wobble and deviation, has a good wearing feeling, and can be used in combination with other correction tools.
Furthermore, by deforming, it becomes difficult to be affected by the difference in the oral cavity shape of the wearer, and fine adjustment work becomes unnecessary.
Accordingly, it is possible to provide a tongue position and mandibular position correction training device that can reduce the adjustment cost.
Further, in the invention of claim 2, the dentition fitting portion rises upward from the planar U-shaped upper dentition proximity surface portion to which the lower end portion of the upper dentition can approach, and from the upper dentition proximity surface portion. And an undercut portion having a U-shaped cross section is formed between the rising portion and the upper tooth row adjacent surface portion. For this reason, the rising portion is likely to closely adhere to the curve of the gums of the upper dentition at the time of wearing, and in addition to the effect of claim 1, the sense of stability at the time of wearing is further improved.
Furthermore, because it is formed from a thermoplastic elastomer, even if an undercut portion is formed, it can be removed by a mold,
Compared with the manufacturing method by injection molding, manufacturing cost can be reduced.

  Further, in the invention of claim 3, a notch portion that can be fitted to the upper lip band is formed at a substantially central portion in the circumferential direction on the peripheral surface portion of the rising portion, and the tongue position correction. Since the cutout portion that can be fitted to the tongue band is provided in the portion, the cutout portion is fitted to the upper lip band and the tongue band, and the rising portion and the tongue position correction The part is more closely adhered to the inside of the oral cavity, and the wearing feeling is improved, and the upper lip band and the tongue band are not damaged.

  Further, in the invention of claim 4, when the tongue and mandibular position correction training device is mounted on the upper dentition proximity surface portion, upper and lower second deciduous teeth, or second premolars and first molars are Since the thickness dimension of the abutting part is formed larger than the thickness dimension of the other parts, the upper and lower second molars or the second premolars are attached in a state where the mouth is closed after wearing. To provide a tongue and mandibular position correction training device that is less likely to wobble and shift even when worn in the opposite occlusion because the tongue and mandibular position correction training device are strongly pinched by the first molar. Is possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, wherein (a) is a plan view and (b) is a cross-sectional view taken along line AA of (a) of the tongue position and mandibular position correction training apparatus in the embodiment. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and is a transparent cross-sectional view showing a state where a tongue position and mandibular position correction training device in the embodiment is mounted in the oral cavity. It is sectional drawing which shows the state which mounted | wore the oral cavity with the conventional tongue and lower jaw position correction training instrument.

An embodiment for carrying out the present invention will be described with reference to the drawings.
As shown in FIG. 2, the training apparatus 10 for correcting the lingual and mandibular position according to the present embodiment is attached to the upper jaw 12 of the oral cavity 11 and is made of a flexible thermoplastic elastomer of a styrenic resin. It has a dentition fitting part 13 that can be fitted to the dentition, and a tongue position correcting part 14 that is extended to the dentition fitting part 13 and formed to bulge downward. Yes.
The tooth row fitting portion 13 rises upward from the upper tooth row proximity surface portion 17 and the upper tooth row proximity surface portion 17 where the lower end portion 16 of the upper tooth row 15 can approach, and the upper teeth An undercut portion 20 having a substantially U-shaped cross section is formed between the rising portion 19 and the upper tooth row proximity surface portion 17. Is formed.
Further, as shown in FIG. 1 (a), in the peripheral surface portion 21 of the rising portion 19, a notch into which an upper lip band 24 (not shown in FIG. 1) can be fitted is provided at a substantially central portion in the circumferential direction. A portion 22 is formed, and the tongue position correcting portion 14 is provided with a notch portion 23 that can be fitted into a tongue band 25 (not shown in FIG. 1).
Further, as shown in FIG. 1A, when the tongue and mandibular position correction training device 10 is mounted on the upper dentition proximity surface portion 17, the upper and lower second molars or the second premolars and the first large The thickness dimension of the part 26 where the molar teeth abut is formed larger than the thickness dimension of the other part 27.

Details of the present embodiment will be described below with reference to the drawings.
Fig.1 (a) shows the top view of the tongue position and mandibular position correction training instrument 10 in the form of a present Example, FIG.1 (b) has shown the AA sectional view taken on the line of (a).
As shown to Fig.1 (a), the tongue and lower jaw position correction training instrument 10 which concerns on a present Example are formed in the plane substantially U shape.
“Lavalon” (registered trademark) manufactured by Mitsubishi Chemical Co., Ltd., which uses styrene rubber (SBC) as a base polymer, was adopted as the styrenic thermoplastic elastomer forming the tongue and mandibular position correction training instrument 10.
The styrenic thermoplastic elastomer has a durometer (JIS K7215) A70 hardness, and is formed to such a degree that it can be easily deformed with fingers.
As shown in FIG. 1B, when the tongue and mandibular position correction training device 10 is mounted on the upper dentition proximity surface portion 17, the upper and lower second molars or the second premolar and the first The thickness dimension of the part 26 with which the molar teeth abut is about 3 mm, which is larger than the thickness dimension of the other parts.
Further, the undercut portion 20 between the rising portion 19 and the upper dentition proximity surface portion 17 is formed in a U-shaped section protruding forward as shown in FIG. 1B, and the rising portion 19 is inward. It is formed so as to be inclined.
Further, the cutout portion 22 is formed in a substantially V-shape on the front side, and the cutout portion 23 is formed in a substantially V-shape on a plane.

The operation when the tongue and mandibular position correction training device 10 according to this embodiment is mounted in the oral cavity will be described below with reference to the drawings.
As shown in FIG. 2, the tooth row fitting portion 13 is fitted to the upper tooth row 15, and the upper lip small is formed in the notch portion 22 formed at the substantially central portion in the circumferential direction of the peripheral surface portion 21 of the rising portion 19. The band 24 is fitted, the tongue 28 is placed on the upper surface of the tongue position correcting unit 14, and the small tongue band 25 is fitted to the flat V-shaped notch 23 provided in the tongue position correcting unit 14. .
Since the undercut portion 20 is formed, the rising portion 19 is inclined toward the inside of the oral cavity, so that the inner surface portion of the rising portion 19 is formed on the gum portion 27 of the upper tooth row 15. Closely contact.
Therefore, when the tongue and mandibular position correction training device 10 is mounted in the oral cavity, the lower jaw position correction training device 10 is unlikely to wobble and shift, and the mounting feeling is extremely excellent.
Further, in the state where the mouth is closed after being mounted, since the portion 26 of the upper dentition proximity surface portion 17 is firmly sandwiched between the upper and lower second molars, or the second premolars and the first molars, Misalignment is unlikely to occur and the wearing feeling is further improved.

  In addition, the flexibility of styrenic thermoplastic elastomer absorbs the impact when it hits the gums, etc., and deforms according to the dentition shape etc. that varies depending on the wearer, so even when wearing for a long time It is difficult to cause pain in the oral cavity, and it is not necessary to make it custom-made for each wearer, and it can be used for a large number of people by preparing a predetermined number of sizes.

Furthermore, since the styrenic thermoplastic elastomer is flexible, it can be deformed from the mold and removed from the mold, so that an undercut portion can be formed by mold molding.
Therefore, the manufacturing cost can be reduced as compared with the injection molding method.

  It should be noted that the overall size of the tongue and mandibular position correction training device and the dimensions of each part according to the present embodiment can be changed as appropriate without departing from the configuration of the present invention. However, it is possible to obtain the same effect as the present embodiment.

  INDUSTRIAL APPLICABILITY The present invention is applicable to a tongue and mandibular position correction training device that is attached to the inside of the oral cavity and performs training for correcting the tongue and mandibular positions.

DESCRIPTION OF SYMBOLS 10 Tongue and mandibular position correction training instrument 11 Inside of oral cavity 12 Upper jaw part 13 Dental row fitting part 14 Tongue position correction part 15 Upper tooth row 16 Upper tooth row lower end portion 17 Upper tooth row proximity surface portion 18 Upper lip portion back side 19 Standing portion 20 Undercut part 21 Standing peripheral surface part 22 Notch part 23 Notch part 24 Upper lip body 25 Tongue body 26 Upper and lower second molars, or part 27 where the second premolar and first molar are in contact with each other 28 Tongue 40 Tongue and mandibular orthodontic training device 41 Upper dentition 42 Dental dent fitting part 43 Tongue position correction part 44 Upper dentition proximity surface part 45 Upper lip part 46 Standing part 47 Oral cavity

Claims (5)

A tongue and mandibular position correction training device that is attached to the upper jaw of the oral cavity and corrects the tongue position and mandibular position,
A dentition fitting portion made of a thermoplastic elastomer having flexibility, and capable of fitting into the upper dentition;
A tongue and mandibular position correction training instrument, characterized by having a tongue position correcting section that extends from the dentition fitting section and bulges downward. The dentition fitting portion rises upward from a planar U-shaped upper dentition proximity surface portion where the lower end portion of the upper dentition can approach, and rises upward from the upper dentition proximity surface portion. Formed from a rising portion disposed between,
The tongue and mandibular position correction training device according to claim 1, wherein an undercut portion having a U-shaped cross section is formed between the rising portion and the upper dentition proximity surface portion.   In the peripheral surface portion of the rising portion, a notch portion that can be fitted into the upper lip strip is formed at the substantially central portion in the circumferential direction, and the tongue position correcting portion can be fitted into the tongue strip. The tongue and mandibular position correction training device according to claim 2, wherein a notch is provided.   In the upper dentition proximity surface part, when the tongue and mandibular orthodontic training device is worn, the thickness dimension of the upper and lower second molars, or the part where the second premolar and the first molar contact, The tongue and mandibular position correction training device according to claim 2, wherein the device is formed to be larger than the thickness dimension of the part.   The tongue and mandibular position correction training device according to claim 1, wherein the thermoplastic elastomer is a styrene resin.