JP5187724B2 - Denture with variable facial expression - Google Patents

Description

  The present invention relates to a denture having artificial teeth arranged on a denture base, and more particularly to a denture having a mouth facial expression variable function capable of changing a human facial expression.

  When teeth are lost, the facial expression, especially the mouth, changes significantly. The alveolar bone that supported the teeth is also absorbed and thins down to the gums. This is because the base (alveolar ridge) on which the denture is mounted becomes smaller. As a result, as shown in FIG. 12, the “bulge” that supported the cheeks and lips from the inside of the mouth decreased, the cheeks became dull, wrinkles and grooves deepened, cheekbones became conspicuous, Change to face. In particular, in the periphery of the mouth, grooves such as the nasal lip groove x and the chin lip groove y are deep and clearly visible.

  In order to restore these, it is necessary to increase the bulge from the inside of the mouth with dentures to support the skin and to provide tension. In particular, a myriad of small vertical wrinkles around the upper lip cannot be erased unless supported by the thickness of the teeth.

  The next cosmetic problem caused by the loss of teeth is a change in jaw position. In other words, the alveolar wall of the maxillary teeth is thick on the palate side and thin on the labial cheek side, so if the teeth are lost, the absorption of the alveolar wall on the labial cheek side increases, and in the upper jaw, after the loss of the teeth, the alveolar crest is on the palate side (inside ). On the other hand, there is not much difference in the thickness and structure of the inner and outer bones in the anterior teeth and premolars of the lower jaw, and when the teeth are lost, the height decreases in the vertical direction. Therefore, the biting position is lowered, the chin comes out forward, or is deviated left and right. The face changes when the position of the chin or the position of chewing changes. When the meshing position is lowered, the distance between the upper jaw and the lower jaw is narrowed, and as shown in FIG. 12, the face is crushed and the wrinkle is noticeably old. When deviation occurs in the position of the chin like this, the height of the left and right eyes and the corners of the eyes and the positions of the mouth corners at both ends of the lips are different. There is a difference between the cheeks and the whole face is distorted, affecting the posture of the whole body. If you continue to lose your teeth for a long time, your face will change and your posture will be distorted.

  On the other hand, the amount of visible teeth varies with aging, and mainly from 30 to 40 years old, the appearance of the upper central incisor begins to decrease, and conversely, the appearance of the lower central incisor increases. This is because aging causes soft muscles to relax muscles and thin skin, and wrinkles and grooves on the nose and lips. The upper and lower lips are kept bulging by the central incisors, but once the central incisors are worn out, lack of shape, or lose the central incisors, the lip tension is lost and the red part of the lips is inside It gets caught in the skin, loses its thickness, creases on the lips and hangs down. After the age of 40, the muscles around the lips and mouth loosen and the entire mouth becomes “sagging”, and the lips also hang down and become “healthy”. Therefore, the movement of the upper lip is reduced, and even when talking, it becomes a “curve” and keeps on the upper front teeth. Since the story is only the movement of the lower lips, only the lower front teeth can be seen, and the mouth looks old. Therefore, dentures have an important significance in order to increase the swelling from the inside of the mouth, support the skin, and provide tension.

Various techniques relating to such dentures have been proposed. For example, as disclosed in Japanese Patent Laid-Open No. 10-94553 “Artificial Teeth Arrangement Trial Appropriate Support System” in Japanese Patent Application Laid-Open No. 10-94553, an optimal artificial tooth arrangement image is selected from image data of various artificial tooth anterior teeth arranged in a database. Proposal of an artificial tooth arrangement trial support system that synthesizes and edits the patient's facial image with the patient's facial image and transfers the synthetic image data that simulates the patient's appearance after the denture is mounted and selected artificial tooth data via personal computer communication ing.
Japanese Patent Laid-Open No. 10-94553

  However, the “artificial tooth arrangement trial support system” of Patent Document 1 has six front teeth arranged by various artificial teeth and can handle each front tooth row as one unit, so that the appearance after denture installation can be easily and quickly performed. However, the expression of the mouth, which is the subject of the present invention, was not actively changed.

  Accordingly, the inventors of the present invention have focused on the fact that a person's mouth greatly affects the muscle groups that form the mouth and the facial expression of the face. For example, as shown in the explanatory diagrams of facial muscles (mouth muscles) in FIG. 3 and FIG. 4, most of the mouth muscles responsible for facial expressions of the mouth occur from the front of the upper and lower jaw bones and are located just outside the corner of the mouth. It gathers towards and spreads through the movable lips through this, and is involved in the composition of the mouth muscles. Therefore, muscles such as the muzzle muscles, the levator ani muscles, and the suboral mandibular muscles depend on the tension of the original muscles, but are supported to some extent by the alveolar part and the dentition, and maintain their position and shape. Yes. That is, the facial expression of the person's mouth is formed by the alveolar portion and the dentition.

  With regard to the facial expression formed in this way, for example, when the tooth is lost and absorption of the alveolar portion occurs, the lip recedes and the nasal lip groove y deepens as shown in FIG. Change. Similarly, if the teeth are poorly aligned, the mouth muscles also change, and the aesthetic balance of the face is lost. Furthermore, the upper and lower occlusal relations are also unstable, the contact range of the upper and lower lips is widened, and a large change occurs in the facial expression of the mouth.

  The present invention has been developed to solve such problems. That is, an object of the present invention is to change the facial expression of a person by mainly pressing the muscles around the mouth with artificial teeth by changing the artificial teeth themselves or changing the arrangement of the artificial teeth. An object of the present invention is to provide a denture having a function of changing the expression of the mouth.

The present invention is a denture (1) having an artificial tooth (3) arranged on a denture base (2) to be in close contact with an alveolar ridge (TB) and having a function of changing the facial expression of a person's mouth, before the loss of a tooth The artificial teeth (3) from the central incisor (T1) to the canine (T3) arranged on the alveolar crest line (TL) formed by the long axis of the natural tooth (NT) is responsible for the facial expression of the person's mouth. the orbicularis muscle mouth in the vertical jaw body front occupying most of the mouth muscles, have a wall thickness that mainly lifting the mouth ring muscle by pressing from the oral cavity, protrudes in the artificial teeth (3) The thickness was determined by measuring how much the artificial teeth (3) should lift the muzzle muscles by pressing the muzzle muscles in order to change the facial expression of the person's mouth. It is characterized by being.

Moreover, this invention is denture (1) which has a function which changes the facial expression of a person's mouth which arranged artificial tooth (3) in denture base (2) closely_contact | adhered to alveolar ridge (TB), The artificial teeth (3) of the premolar (T4) group , arranged on the alveolar crest line (TL) formed by the long axis of the natural tooth (NT) before loss, is the mouth muscle responsible for the facial expression of the human mouth. the mouth of the corner of the mouth levator in the vertical jaw body front occupying most mainly have a wall thickness that is pressed to the cheek side (C) lifting the mouth angle levator from the oral cavity, the artificial teeth (3) The thickness of the protruding portion is a measure of how much the artificial teeth (3) need to lift the levator ani muscle by pressing the antrum levator muscle in order to change the facial expression of the person. Determined .

The present invention is a denture (1) having a function of changing the facial expression of a person's mouth, in which an artificial tooth (3) is arranged on a denture base (2) to be in close contact with an alveolar ridge (TB), and before tooth loss The artificial teeth (3) of the premolar (T4) group and the molar (T5) group arranged on the alveolar crest line (TL) formed by the long axis of natural teeth (NT) the zygomatic major muscle of the mouth in the upper and lower jaw bone body front, which accounts for a large part of the mouth muscles in charge, mainly lifting the large-zygomatic muscle to press from the oral cavity, hit in the shallow layer of the face that is in conjunction with the zygomatic major muscle upper lip nose wings levator, have a wall thickness that upper lip levator and small cheek shoulder muscles also Ru lifting, protruding meat Atsuryou of each artificial tooth (3) in order to vary the expression of human mouth, said by pressing the artificial teeth (3) of the zygomaticus major muscle, der those determined by measuring whether it lifted the extent to which the large zygomatic muscles .
For example, it is preferable to form only the upper artificial teeth (3) thick.

  In the invention having the above-described configuration, the denture (1) composed of the artificial tooth (3) thus configured is attached to the alveolar ridge (TB), so that the orbital muscle, the levator ani muscle, the sub-angular control on the front surface of the maxilla and mandible The facial expression of the person's mouth can be changed by pressing the mouth muscle such as a muscle from the inside of the mouth upward or outward. That is, it is possible to improve the aesthetic balance of the face by changing the mouth muscles due to the loss of teeth or the teeth of a specific part of the dentition. Furthermore, it is possible to stabilize the upper and lower occlusal relationships and improve the expression of the mouth without widening the contact range of the upper and lower lips (L).

  When the artificial teeth (3) from the central incisor (T1) to the canine (T3) are formed thick mainly on the lip (L) side, the muzzle muscles can be lifted. Therefore, by adjusting the width of the lip (L) in the facial expression of the mouth, the red lip (L1) is inverted, and the so-called thin lip (L) becomes thick.

  When the artificial teeth (3) of the premolar (T4) group are formed thick mainly on the cheek (C) side, the levator ani can be lifted. Therefore, it is possible to lift up the entire cheek by pulling up the greater zygomatic muscle that is interlocked with the angle levator ani muscle. Furthermore, the lower-mouth angle control muscle that is linked to the levator ani muscle is also raised, so that the jaw line becomes sharper. It also affects the ocular muscles that connect to the greater zygomatic muscle, so you can raise your eyes.

  When the artificial teeth (3) of the premolar (T4) group and the molar (T5) group are formed thickly mainly on the cheek (C) side, the large zygomatic muscle is lifted and interlocked with this large zygomatic muscle The entire cheek can be lifted by lifting the upper lip nasopharyngeal muscle, the upper lip levator muscle, and the small cheek shoulder muscle, which are the shallower layers of the face.

  The denture having a variable function of the facial expression of the present invention is to press the mouth muscle responsible for the facial expression of the person's mouth from the oral cavity by making the artificial tooth thicker than the natural tooth, It relaxes the tension of the mouth muscles and changes the facial expression of the person's mouth.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1A and 1B show a denture having a function of changing the expression of the mouth in Example 1, wherein FIG. 1A is a bottom view of a maxillary denture and FIG. 1B is a plan view of a mandibular denture. FIG. 2 is a cross-sectional view showing a state in which the denture of Example 1 is mounted on the upper jaw. FIG. 3 is an explanatory front view showing the positional relationship of each facial muscle (mouth muscle). FIG. 4 is an explanatory side view showing each facial muscle (mouth muscle). 5A and 5B are explanatory side cross-sectional views showing a change state of the teeth and facial muscles in FIG. 4, wherein FIG. 5A is a positional relationship between the central incisor and the lip, FIG. c) is the positional relationship between the molar and the mouth muscle, and (d) is the positional relationship between the molar and the mouth muscle.
The denture 1 of Example 1 has artificial teeth 3 arranged on a denture base 2 that is in close contact with the alveolar ridge TB. As shown in FIG. 2, these artificial teeth 3 are pressed by the artificial teeth 3 arranged on the alveolar crest line TL formed by the long axis of the natural tooth NT before the tooth loss from the mouth so that each mouth muscle is It is thick enough to lift upwards. When the denture 1 of the present invention is attached only to the upper jaw, a normal denture is attached to the lower jaw. In the embodiment of FIG. 2, the thick portion is indicated by hatching, and the artificial tooth 3 is pasted with a member having a thickness. However, in addition to such a structure, the artificial tooth 3 itself may be formed with a thick portion indicated by hatching.

  When the denture 1 created in this way is attached to the mouth in the same manner as a normal denture, a specific muscle of the mouth on the front surface of the upper and lower jaw bones that occupies most of the mouth muscles responsible for the facial expression of the person's mouth is taken from the oral cavity. Each mouth muscle can be lifted mainly upward by pressing. As a result, the facial expression of the mouth can be varied.

  In particular, in order to change the facial expression of the mouth, the artificial tooth 3 of the denture 1 presses the mouth muscles and measures how much each mouth muscle is lifted upward to determine the protruding thickness of the artificial teeth 3. . In order to change the facial expression of a person's mouth, it is measured how much the mouth muscles should be lifted upward.

  As shown in FIG. 3 and FIG. 4, in order to change the facial expression of a person, the mouth muscles such as the muzzle muscles, the levator levator muscles, and the subangular control muscles that form the muscles of the mouth are pressed. A denture 1 in which artificial teeth 3 having a thickness enough to lift up the teeth is arranged is attached to the mouth. For example, as shown in FIGS. 5A and 5B, the artificial teeth 3 corresponding to the central incisors T1 and the canines T3 formed thick can lift the muzzle muscles. Therefore, by adjusting the width of the lip L in the facial expression of the mouth, the red lip L1 is inverted, and the so-called thin lip L becomes thick.

  As shown in FIG. 5 (c), when the width of the lip L is adjusted and the angle of the mouth is raised and the mouth muscle (muzzle muscle) is lifted, the artificial tooth 3 corresponding mainly to the premolar tooth T4 is formed thick. And this is made into the denture 1 which arranged this. The muzzle muscle is a muscle that surrounds the mouth in a circle, and is a muscle that closes the mouth and protrudes the lips L. Facial muscles (oral muscles) that are said to become old when the muzzle muscles weaken. By lifting the muzzle muscles, it is possible to change the delicate expression of the mouth and produce a tight mouth.

  As shown in FIG. 5 (d), when lifting the greater zygomatic muscle, the artificial tooth 3 corresponding to the molar tooth T5 is formed thick and the denture 1 is arranged. The large zygomatic muscle is interlocked with the upper lip and levator levator muscles, the upper lip levator muscle, and the small cheek shoulder muscles, which are the shallow layers of the face, so as to lift the entire cheek. This great zygomatic muscle is a muscle that raises the corner of the mouth and creates a smile. By pushing up this large zygomatic muscle, you can erase the rich lines and stretch the wrinkles, and turn it into lively skin.

  The artificial tooth 3 corresponding to the premolar tooth T4 group is formed thick, and the denture 1 in which this is arranged lifts the levator ani muscle, and pulls the greater zygomatic muscle linked to this antrum levator muscle upward, Lift up the entire cheek. Furthermore, the lower-mouth angle control muscle that is linked to the levator ani muscle is also raised, so that the jaw line becomes sharper. It also affects the ocular muscles that are connected to the greater zygomatic muscles, so that the eyes rise. By pushing up the large zygomatic muscle, the rich lines can be erased and wrinkles can be stretched. The lower-mouth corner control muscle is a muscle that pulls the mouth corner downward or diagonally downward. If this lower-mouth muscle is weak, vertical wrinkles are likely to form from the mouth corner to the lower jaw. Therefore, the lower mouth corner control muscle can be lifted rearward and upward to lift up the entire cheek. Further, the ocular muscle is a muscle that surrounds the eyes, and is a muscle that opens and closes the eyes. Since this ocular muscle is thin overall, it tends to wrinkle quickly, but it can also be stretched due to the influence of the associated facial muscles.

  The artificial tooth 3 corresponding to the molar T4 group and the molar T5 group is formed thick, and the denture 1 in which the artificial teeth 3 are arranged lifts the large zygomatic muscle and corresponds to the shallow layer of the face interlocked with the large zygomatic muscle. The entire cheek can be lifted by lifting the upper lip nasopharyngeal muscle, the upper lip levator muscle, and the small cheek shoulder muscles. The small zygomatic muscle is an important muscle for making a smile by raising the mouth diagonally. It is a muscle that eliminates the stiffness of the cheeks and thereby makes a natural smile. By pushing up the small zygomatic muscle, it is possible to increase the sagging of the cheek due to the decline of the small zygomatic muscle.

FIG. 6 is a cross-sectional view showing a state where the denture of Example 1 is mounted on both upper and lower jaws.
The denture 1 of the present invention is preferably only for the upper jaw in consideration of meshability as shown in FIG. 2, but is not necessarily limited to the upper jaw, and can be mounted on both the upper and lower jaws as shown in FIG. . When the upper lip L is thin, the upper denture 1 is thicker than the lower denture 1 so that the upper red lip L1 appears.

FIG. 7 is a flowchart showing a method of manufacturing a denture having a function of changing the expression of the mouth according to the first embodiment.
When the denture of the present invention is manufactured, as shown in the drawing, it is roughly divided into “production of training denture”, “production of denture for production”, “arrangement of teeth” and “fine adjustment”.
"Production of training dentures"
First, shape the dentures currently in use. It is measured using an instrument called a face bow so that it is parallel to the midline. Here, the median line is a line that passes straight through the center of the body vertically from the top of the head.
Make a copy denture with a synthetic resin. Use this denture to widen or shrink the base, and adjust the height and width of the molars before and after the central incisor. Spread out the table, scrape where it hits, replenish where it is missing, and adjust to fit the person's mouth.
In order to adjust the meshing, the maxillary and mandibular dentures are adjusted to be straight and parallel using an articulator. Actually, wear it in the mouth and hit it in the mouth to distinguish between the painful and non-painful places, scrape the painful places, and fill the recessed parts.

"Production dentures"
Next, the mucous membrane is adjusted with the mucosa adjusting material, and when the training denture is correctly mounted, the plaster is poured to make models for the upper jaw and the lower jaw. Close the mouth lightly for the upper and lower jaw models and search for a height that is easy to bite. The place where the face becomes beautiful becomes the height of the person.

"Array of teeth."
Collect cheek mold and tongue mold. The size of the tongue is very important because the teeth are arranged between the tongue and the buccal mucosa.
The left and right positions and the central position of the temporomandibular joint are examined. A gypsum model is made to measure the inclination angle of the person's jaw. In addition, the angle of the left and right joints is measured with an articulator.
The position of the upper and lower jaws is reproduced on the articulator using a face and bow measuring instrument, and the teeth are aligned and adjusted.

  Furthermore, in the present invention, specific muscles at the front of the upper and lower jaw bones, which occupy most of the mouth muscles responsible for facial expressions of the person's mouth, are pressed from within the oral cavity to lift each mouth muscle mainly upward, The artificial teeth 3 having a large thickness are arranged so as to vary the facial expression of the mouth. That is, the artificial teeth 3 are arranged such that the artificial teeth 3 are thicker toward the lip L and cheek C side than the alveolar crest line TL formed by the long axis of the natural tooth NT before tooth loss.

  Since the denture 1 of the present invention is intended to change the facial expression of a person's mouth, the shape and thickness of the denture 1 are important. From the state in which the denture 1 is mounted on the mouth, the shape of the person's mouth is identified while performing facial simulation on the facial expression of the person's mouth. Alternatively, the artificial teeth 3 are arranged while measuring an appropriate thickness and shape of the sticking teeth 1 using facial contour lines.

"Tweak"
Finally, the denture 1 is attached to the mouth, and the sensitivity is confirmed, and then shaved or replenished. When the final adjustment of the mucous membrane of the denture base 2 is finished, the biomedical silicone lining is completed. Make a final aesthetic check and check your teeth and mouth.

  In addition, although the denture 1 mentioned above showed what consists of the plastic denture base 2, it is not limited to this. For example, when several tooth roots remain, a magnet can be attached to the root to make a “magnet denture” that the denture holds. This magnet denture has a feature that it can be bitten better with less lifting, especially in the case of a full denture of the lower jaw.

  Moreover, the plastic denture base 2 can be made into a metal base denture made of metal. In this metal denture, metal can reproduce the shape of the gum more accurately than normal plastic, so the degree of adhesion with the gum increases and it becomes more chewable. Another feature is that a denture stabilizer is not required.

  The denture 1 of the present invention is not necessarily limited to a full denture. When part of the tooth remains, it can be a partial denture that clasps it. For example, it can be set as the “attachment denture” in which the clasp portion of the partial denture is a male and female insertion type. This attachment denture is characterized by the fact that the denture does not move when chewed like a normal clasp, so that the denture is stable and can be chewed firmly.

  It can be a “flexite denture” made of a material that is more elastic than a normal partial denture material. Since this flexite denture is fixed to the tooth by the denture floor itself, it can be a denture without a clasp. In addition, since the denture can be made thin, it is characterized by good wearing feeling and less discomfort.

FIG. 8 is an explanatory diagram showing a physical model of muscle.
As shown in the figure, the facial muscles (mouth muscles) include plate-type muscles such as the great cheekbone muscles and laughing muscles, and ring-shaped muscles such as the ocular muscles and the muzzle muscles. Annular muscles are modeled by applying some processing to the parameters of the plate-type muscle model, segmenting them and connecting them to form a continuous loop. That is, when the muscle connected to the bone surface is stimulated and moved in the middle (influence range relating to the length), it greatly affects the skin surface (influence range relating to the width) connected to multiple ends of the muscle. This means that the expression changes greatly by changing the muscles that move the skin surface.
In the present invention, the skin surface (influence range related to width) is greatly affected by stimulating the middle of the facial expression muscle (mouth muscle) (influence range related to length) with denture 1 and adding movement. It is a thing.

FIG. 9 is a cross-sectional view showing a state where the denture of Example 2 is mounted on the upper and lower jaws.
In the denture 21 of Example 2, the dentures 21 are arranged so as to be deviated from the alveolar crest line TL formed by the long axis of the natural tooth NT before tooth loss toward the lip L and cheek C. Even in the artificial tooth 3 having such a structure, specific muscles at the front of the upper and lower jaw bones, which occupy most of the mouth muscles responsible for the facial expression of a person's mouth, are pressed from within the oral cavity to lift each mouth muscle upward. be able to.

[Installation example]
FIG. 10 is an actual photograph of a maxillary denture having a function of changing the facial expression of the present invention. FIG. 11 is a photograph of a mounting example in a state in which the denture of the present invention is mounted, and shows a state (a) of the mouth in which a conventional denture is mounted and a state (b) in which the denture of the present invention is mounted.
FIG. 11 is an example of wearing that shows the expression of the mouth of a woman in the first half of age 60. The upper denture 1 of the present invention was attached to the upper jaw. When the conventional denture of FIG. 11 (a) was attached, the first and second premolars were shaded and the darkness of the mouth was noticeable. When the denture of the present invention of FIG. 11B was mounted, the mounted denture 1 eliminated the darkness of the mouth and brightened the impression of the mouth. Furthermore, since the central incisor and side incisors look white from the first to the first and second premolars, the entire mouth becomes white and looks youthful.

  As described above, the denture 1 of the present invention mainly has a first effect when the mouth is opened, in addition to the effect of pressing a specific muscle at the mouth from inside the mouth and lifting each mouth muscle mainly upward. The second premolars are not easily darkened by shadows, and when the face is viewed from the front, the impression of the entire mouth is brightened.

  In addition, this invention is not limited to embodiment of the invention mentioned above, The artificial tooth 3 itself of the dentures 1 and 21 can be changed, or the arrangement | sequence of an artificial tooth can be changed, and the surrounding muscles of an oral cavity can be replaced with the artificial tooth 3. Of course, as long as the facial expression of a person can be changed by pressing, it is not limited to the configuration shown in the figure, and various changes can be made without departing from the scope of the present invention.

  The denture having a variable function of the mouth expression according to the present invention can be used for various purposes such as temporarily sticking and then using as a removable tooth for photography.

The denture which has a variable function of a mouth expression of Example 1 is shown, (a) is a bottom view of the maxillary denture, and (b) is a plan view of the mandibular denture. It is sectional drawing which shows the state with which the denture of Example 1 was mounted | worn with the upper jaw. It is an explanatory front view showing the positional relationship with each facial muscle (mouth muscle). It is an explanatory side view showing each expression muscle (mouth muscle). It is explanatory side sectional drawing which shows the change state of the tooth | gear and facial muscle in FIG. 4, (a) is the positional relationship between a central incisor and a lip, (b) is the positional relationship between a canine and a lip, (c) is The positional relationship between the molar and the mouth muscle, (d) is the positional relationship between the molar and the mouth muscle. It is sectional drawing which shows the state with which the denture of Example 1 was mounted | worn to both upper and lower jaws. It is a flowchart which shows the manufacturing method of the denture which has a variable function of a mouth expression of Example 1. FIG. It is explanatory drawing which shows the physical model of a muscle. It is sectional drawing which shows the state which mounted | wore the upper and lower jaw with the denture of Example 2. FIG. It is an actual photograph of an upper denture. It is a photograph of the example of mounting | wearing of the state which mounted | wore the denture of this invention, and shows the state (a) of the mouth which mounted | worn the conventional denture, and the state (b) which mounted the denture of this invention. It is a front view which shows the face which lost the tooth.

1 denture 2 denture base 3 artificial tooth 21 denture TB alveolar ridge TL alveolar crest line NT natural tooth T1 medium incisor T2 side incisor T3 canine T4 premolar T5 molar L L lip L1 red lip C cheek

Claims (4)

An artificial tooth (1) in which artificial teeth (3) are arranged on a denture base (2) to be in close contact with the alveolar ridge (TB), and has a function of changing the facial expression of a person's mouth ,
The artificial teeth (3) from the central incisor (T1) to the canine (T3) arranged on the alveolar crest line (TL) formed by the long axis of the natural tooth (NT) before the tooth loss is the mouth ring muscle of the mouth in the upper and lower jaw bone body front, which accounts for a large part of the mouth muscles responsible for facial expressions, have a wall thickness of the extent to which mainly lifting the mouth-ring muscles by pressing from the oral cavity,
The protruding thickness of each artificial tooth (3) determines how much the artificial tooth (3) can lift the muzzle muscles by pressing the muzzle muscles in order to change the facial expression of the person's mouth. A denture having a variable function of facial expression, characterized in that it is determined by measuring whether or not it should be. A denture (1) having a function of changing the facial expression of a person's mouth, in which an artificial tooth (3) is arranged on a denture base (2) to be in close contact with the alveolar ridge (TB),
The artificial teeth (3) in the premolar (T4) group , arranged on the alveolar crest line (TL) formed by the long axis of the natural tooth (NT) before tooth loss, is the mouth muscle responsible for the facial expression of the human mouth large the mouth of the corner of the mouth ani muscle in the upper and lower jaw bone body front, which accounts for part, from the oral cavity mainly pressed against the cheek (C) side have a wall thickness of the extent to lift the mouth-angle ani muscle of,
The protruding thickness of each artificial tooth (3) indicates how much the artificial tooth (3) can lift the mouth levator muscle by pressing the mouth levator muscle to change the facial expression of the person's mouth. A denture having a variable function of facial expression, characterized in that it is determined by measuring whether or not it should be. A denture (1) having a function of changing the facial expression of a person's mouth, in which an artificial tooth (3) is arranged on a denture base (2) to be in close contact with the alveolar ridge (TB),
The artificial teeth (3) of the premolar (T4) group and the molar (T5) group arranged on the alveolar crest line (TL) formed by the long axis of the natural tooth (NT) before the tooth loss is of the zygomatic major muscle of the mouth in the upper and lower jaw bone body front, which accounts for a large part of the mouth muscles responsible for facial expressions, mainly lifting the large-zygomatic muscle to press from the oral cavity, the face that is in conjunction with the zygomatic major muscle upper lip alar levator corresponding to the shallow layer, the thickness of the extent to which upper lip levator and small cheek shoulder muscle also Ru lifting possess,
The protruding thickness of each artificial tooth (3) indicates how much the artificial tooth (3) can lift the large zygomatic muscle by pressing the large zygomatic muscle in order to change the facial expression of the person. Ru der which was determined by measuring whether Bayoi, dentures with variable functions mouth expressions, characterized in that.   4. The denture having a variable function of mouth expression according to claim 1, wherein only the artificial teeth (3) of the upper jaw are formed thick.