JP4041151B2 - Denture with denture - Google Patents

Description

  The present invention relates to a denture having a denture base.

For conventional dentures with dentures, which are artificial dentures made of ceramics on denture bases made of acrylic resin, etc., the same color as the gums, dentures called dentures (Full dentures) and partial dentures (local dentures) called partial dentures. For example, Patent Document 1 listed below discloses a denture that is a complete denture.
JP 2004-016417 A

  The conventional denture D of the conventional example shown in FIG. 10 and FIG. 11 is a complete denture for the upper jaw that compensates for all the defects of the natural teeth in the upper jaw, and is a substantially semi-elliptical shape formed of a resin such as a denture base resin or sulfone. A plurality of artificial teeth 1 are arranged on the denture base A. The denture base A is shaped to cover the mucous membrane surface M of the gingiva G and palate P, and the portion corresponding to the gingiva G is thicker than the portion corresponding to the palate P, and a plurality of artificial teeth 1 are partially embedded at the top. Has been fixed. Such a denture D is mounted inside the oral cavity with the denture base A covered with the mucosa M of the gingiva G or palate P. That is, the denture base A of the base denture D plays a role of stably holding the artificial tooth 1 and a role of covering the mucosa M of the gingiva G and the palate P to stabilize the base denture D inside the oral cavity. Yes.

  An outline of the manufacturing method of the denture base D is as follows. When a dental synthetic resin of a type that is polymerized and cured by heating, such as a range or sulfone, is used as a material for the denture base A, first, the gum-like substance is placed in the oral cavity. A gypsum model that reproduces the patient's oral cavity (upper jaw state), that is, an impression model, is formed by pouring gypsum into a concave shape collected by pressure welding. Next, wax is poured into a wax mold raised from the plaster model to form a wax bank, and artificial teeth 1 are arranged on the wax bank to create a temporary denture base (wax tooth). Then, by replacing the wax portion of the temporary denture base with a synthetic resin such as resin or sulfone by the lost wax method, the denture D with the artificial teeth 1 arranged thereon is manufactured.

  Note that the lower denture base denture that fills all the defects of the natural teeth in the lower forehead has a substantially U-shape as a whole because it covers only the mucosal surface of the gingiva G. Including the denture D for the upper jaw.

  The stable mounting state of the denture D is secured by the adhesion between the palate P and the mucosa surface M of the gingiva G and the denture base A. That is, when the denture base A adheres to the mucosal surface M without a gap, the denture base D is adsorbed to the mucosal surface M, and a stable wearing state is ensured. However, of the mucosal surface M of the gingiva G and palate P, the mucosal surface Mg of the gingiva G is deformed by the movement of the gingival G by occlusal pressure or the absorption of the alveolar bone B covered by the gingival G. On the other hand, since the denture base A of the denture D has to hold and fix the artificial tooth 1, it has a certain degree of thickness and hardness and is difficult to deform. For this reason, when the mucosal surface Mg of the gingiva G is deformed, a gap is formed between the denture base A having a certain degree of hardness and thickness and the mucosal surface Mg of the gingiva G, and the adsorption is weakened. Deviation and backlash have occurred. This swinging of the denture D impedes mastication and conversation, causes pain in the gingiva G and palate P, and causes a rattling feeling that an earthquake has occurred in the oral cavity, which makes It was one of the causes that made it worse. Further, when a gap is generated between the denture base A and the mucosal surface Mg of the gingiva G for the above-mentioned reason, the denture base A or the denture base A due to the impact of the denture D due to the occlusal pressure is bent. The artificial tooth 1 was broken (broken), making long-term use difficult.

  In addition, the conventional denture D has a hard denture base A that directly touches the mucous membrane surface M of the gingiva G and palate P. Not only does this cause discomfort such as discomfort and pain, but also the alveolar bone B is easily compressed and absorbed by the hard denture base A, and the above mentioned denture D is easily shaken or damaged. It was.

  On the other hand, the denture base A of the base denture D is made soft and can be deformed according to the mucosal surface Mg of the gingiva G, thereby suppressing the occurrence of swaying and preventing uncomfortable feeling. It can be increased. However, if the denture base A is made soft enough to suppress the occurrence of shaking or cause discomfort, the artificial tooth 1 that is partially embedded and held in the denture base A swings or comes off the denture base A. Becomes unstable and lacks practicality.

  Furthermore, the denture denture D becomes familiar with the inside of the oral cavity by use, and the uncomfortable feeling inside the oral cavity is alleviated and eliminated, and the wearing feeling tends to be improved as compared with the start of use. However, in the case of the conventional denture D, even when only a part of the artificial denture 1 is damaged, the entire denture D including the familiar portion needs to be newly manufactured and replaced. There was, and the familiar wearing feeling before the breakage was to be extremely impaired. Further, if the denture base A is semi-elliptical, the entire mucosal surface Mp of the palate P is blocked, and a large amount of saliva is accumulated between the mucosal surface Mp and the denture base A. It has become difficult to be supplied to the mouth, and the problem that the inside of the oral cavity becomes dry has also occurred.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a denture with excellent wearing feeling while ensuring the stability of an artificial tooth by distributing the occlusal force.

The denture of the present invention has at least two denture bases: a first denture base covering the mucosa surface of the gingiva or the gingiva and the mucosa surface of the palate, and a second denture base on which artificial teeth are arranged. The first denture base can be deformed according to the mucosal surface of the gingiva, and the first denture base and the second denture base are provided with an elastic body having an elastic force between them via an adhesive. It is characterized by being superposed. The first denture base may cover only the mucosal surface of the gingiva, or may cover the mucosal surface of the gingiva and the palate.

According to this invention, it has at least two denture bases of the 1st denture base which coat | covers the mucous membrane surface of a gingiva or the mucosa of a gingiva and a palate, and the 2nd denture base in which the artificial tooth was arranged. Therefore, it can be set as suitable thickness and hardness according to the role for every denture base. That is, by making the second denture base thickness and hardness suitable for fixing artificial teeth, the stability of the artificial teeth is ensured and the occlusal force is dispersed, while the first denture base is covered with the mucosal surface. By setting it to a suitable thickness and hardness, it is possible to obtain a denture with excellent wearing feeling. In addition, if either the first denture base or the second denture base is damaged, it is possible to replace only one denture base as necessary, and the wearing feeling before the damage is extremely impaired. It will never happen. Furthermore, when the first denture base is deformed, inconsistency may occur in the overlapping state of the first denture base and the second denture base. According to this invention, the first denture base and the first denture base Since an elastic body having an elastic force is arranged between the second denture base, this mismatch is absorbed by the elastic body, and rattling between both denture bases is prevented. As the elastic body, an elastic slow pressure attachment is suitable.

  As the denture of the present invention, the first denture base preferably has a thickness that can be deformed in accordance with the deformation of the mucosal surface of the gingiva. In the denture of the present invention, the first denture base is preferably formed of a material that can be deformed in accordance with the deformation of the mucosal surface of the gingiva.

  The denture is adsorbed by the denture base in close contact with the gingiva or the mucosal surface of the gingiva and the palate, and a stable wearing state is obtained. Even if the mucous membrane surface of the gingiva is deformed, the first denture base is deformed in accordance with the deformation of the mucosa surface, so that the adsorbed state between the mucosa surface and the first denture base is maintained, and the denture is shaken or damaged. Is prevented.

The denture according to claim 2 of the present invention is characterized in that the elastic body is an elastic slow pressure attachment that can replace either the first denture base or the second denture base.

  The denture according to claim 3 of the present invention is characterized in that the first denture base and the second denture base are upper denture bases having a substantially U shape. The first denture base and the second denture base are upper denture bases having a substantially U shape, and the left and right sides of the substantially U shape are provided on the first denture base or the second denture base. It is preferable that reinforcing means for connecting and reinforcing is provided.

  According to this invention, since the first denture base and the second denture base are substantially U-shaped, they are more easily deformed than those having a substantially semi-elliptical shape that covers the mucosal surface of the palate in a wide range. . The substantially U-shaped first denture base has a smaller area to be adsorbed to the mucosal surface than that of a substantially semi-elliptical shape, but is not shaken or detached because the adsorbed state is maintained by deformation. In addition, since the entire mucosal surface of the palate is not blocked by adopting a substantially U shape, saliva is easily supplied into the oral cavity without accumulating between the mucosal surface and the denture base. Both denture bases are narrow and generally U-shaped, but the first denture base or the second denture base is reinforced by connecting the left and right sides with reinforcing means, so breakage due to twisting or distortion, etc. Is less likely to occur.

  In the method for producing a denture according to the present invention, the denture is composed of a first denture base covering the mucosa surface of the gingiva or the mucosa surface of the gingiva and the palate, and a second denture base on which artificial teeth are arranged. The denture base according to any one of claims 1 to 5, wherein the first denture base and the second denture base are used in an overlapping manner. In manufacturing the first denture base, it is preferable to manufacture the second denture base in a shape that can be superimposed on the first denture base after the first denture base is manufactured in a shape capable of covering the mucous membrane surface.

  According to the present invention, the first denture base is manufactured by collecting a concave mold on the mucosa surface of the gingiva or palate and pouring gypsum into the concave mold. Since the first denture base can be manufactured separately from the second denture base, it can be manufactured with materials and thicknesses suitable for covering the mucosal surface of the gingiva and palate without considering the stability of the artificial teeth. It becomes. Next, the second denture base is manufactured by collecting the concave shape of the first denture base and pouring plaster into it. The second denture base can be manufactured separately from the first denture base, and can be manufactured with a material and thickness suitable for the stability of the artificial tooth without considering the wearing feeling. And if it manufactures by this method, the 1st denture base and the 2nd denture base can be overlap | superposed, and the use as a denture having the said effect | action and effect will be attained.

  According to the denture of the present invention, since the denture base is composed of the first denture base and the second denture base, each denture base should have a suitable thickness and hardness according to its role. Thus, it is possible to obtain a denture with a superior wearing feeling while ensuring the stability of the artificial tooth. In particular, by making the first denture base thickness and material that can be deformed according to the deformation of the mucosal surface of the gingiva, even if the mucosal surface of the gingiva is deformed due to movement of the gingiva by occlusion or absorption of the alveolar bone, Correspondingly, the first denture base is deformed and kept in close contact with the mucosal surface, so that the denture is less likely to shake, and the wearing feeling is improved and damaged by the shake. Is prevented, and long-term use becomes possible. When either the first denture base or the second denture base is damaged, it is possible to replace only one denture base as necessary, and the wearing feeling before breakage is extremely impaired. There is nothing.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the denture base of the present embodiment includes a maxillary denture (complete denture) D <b> 1 and a mandibular denture that are used for prosthesis of a complete defect of a natural tooth on the upper jaw side. (Total denture) DD, all of which are U-shaped as a whole. These both dentures (complete dentures) D1 and the dentures (complete dentures) DD have substantially the same configuration. All dentures are also called dentures. Hereinafter, the upper denture (complete denture) D1 will be described, but the lower denture denture (complete denture) DD can be applied in the same manner including the manufacturing method.

  As shown in FIGS. 2 and 3, the denture denture D1 is composed of a first denture base A1 that covers the mucosal surface Mg of the gingiva G and a second denture base A2 in which a plurality of artificial teeth 1 are arranged. Two denture bases A1 and A2 are provided, and the first denture base A1 and the second denture base A2 are overlapped and used. Since the denture D of this Embodiment has at least 2 denture base, it can be set as suitable thickness and hardness according to the role for every denture base. Each denture base A1, A2 may have a suitable thickness, may have a suitable hardness by selection of a material to be used, or may have both a thickness and a hardness suitable. In this embodiment, the case where the material is the same and the thickness is suitable will be described as an example.

  The first denture base A1 is formed from polysulfone, which is a resin for denture base. The shape is substantially U-shaped so as to cover the mucosal surface Mg of the gingiva G, and exhibits a concave cross section to straddle the gingiva G. The thickness of the first denture base A1 is uniform and is thin so that it can be deformed in accordance with the deformation of the mucosal surface Mg of the gingival G. The deformable thickness of the first denture base A1 varies depending on its size and material, but is preferably about 0.5 mm.

  The second denture base A2 is also made of polysulfone as a material, and its shape is substantially U-shaped that is slightly smaller than the first denture base A1 so as to straddle the first denture base A1. Since it is superposed on each other, it has a concave cross section. The thickness of the second denture base A2 gradually increases from the outside toward the inside, and the portion where the artificial tooth 1 is embedded is particularly thick in consideration of the stability of the artificial tooth 1. When the second denture base A2 is overlaid on the first denture base A1, the edge of the first denture base A1 partially protrudes outward from the second denture base A2. It becomes.

  A reinforcing member 2 is attached to the second denture base A2 to connect and reinforce the left and right rear sides across a U-shaped substantially symmetrical center line L. The reinforcing member 2 is also called a parapalver and is a band made of gold-silver-palladium alloy, and is curved in an arc shape along the upper jaw wall surface (palate) P inside the oral cavity. A conventional denture on the upper jaw side is provided with a portion covering the palate P (see FIG. 10), but in this embodiment, the entire palatal portion is not covered and is formed into a thin U-shape. While making it easy to deform | transform 1st denture base A1, the contact area with the oral cavity inside of the denture base D1 is decreased, and the mounting feeling is improved. Both denture bases A1 and A2 have a thin U-shape, but when the denture base D1 is mounted inside the oral cavity, the left and right sides of the second denture base are connected and reinforced by the reinforcing member 2. Therefore, the second denture base A2 is prevented from being displaced by preventing breakage such as bending due to twisting or distortion, or by bending the reinforcing member 2 into an arc shape along the palate P. The reinforcing member 2 is attached to the second denture base.

  1st denture base A1 and 2nd denture base A2 are adhere | attached by the adhesion means 3, such as the adhesive agent apply | coated to the back surface of 2nd denture base A2. Thereby, even if it has two denture bases A1 and A2, it can be used as an integral base denture D1. When connecting both denture bases A1 and A2, for example, as shown in FIG. 2, the entire back side of the second denture base A2 (the side in contact with the first denture base A1) is not bonded, but only a few places. It is also possible to apply the adhesive 3 and partially bond them, or connect only the central portion along the U-shape of the second denture base A2 and connect the outer edge portions without bonding. The portion of the first denture base A1 bonded to the second denture base is less likely to be deformed, but by reducing the number of bonded portions, the degree of freedom when the first denture base A1 is deformed is increased. is there. As the bonding means 3, an adhesive tape may be used, or the bonding means 3 may be connected by an elastic / soft pressure attachment. Furthermore, there is no connection between the first denture base A1 and the second denture base A2 so that the deformation is not inhibited by the first denture base A1 being restrained to the second denture base A2. Some gaps are provided in the part.

  FIG. 4 is a diagram illustrating a state in which the denture denture D1 of the present embodiment is mounted in the wearer's oral cavity. The denture denture D1 is placed inside the oral cavity so that the first denture base A1 covers the mucosal surface Mg of the gingival G on the upper jaw in a state where the denture bases A1 and A2 are overlapped and bonded. Is done. When the bed denture D1 is mounted, when the bed denture D1 is placed inside the oral cavity and pressed against the gingiva G, the first denture bed A1 adheres and adsorbs to the mucosal surface Mg of the gingiva G without gaps, The plate denture D1 is fixed.

  In the oral cavity, the mucosal surface Mg of the gingival G is deformed by the movement of the gingival G by the occlusal movement and the absorption of the alveolar bone B. However, when the denture denture D1 is mounted and used inside the oral cavity, the mucosal surface Mg is deformed. In addition, since the first denture base A1 is deformed, the close contact state with the mucosal surface Mg is maintained, and the base denture D1 is prevented from shaking (positional deviation and backlash). In particular, by making the first denture base A1 thin, it is easy to absorb lateral shaking. Therefore, there is no discomfort or pain due to the shaking of the denture D1 during mastication or conversation, and there is no rattling feeling that an earthquake has occurred inside the oral cavity, and an excellent wearing feeling can be obtained. Since the first denture base A1 has a deformable thickness, the first denture base is less likely to break (break) even if the first denture base is bent in accordance with the deformation of the gingiva G, and may be damaged due to an impact caused by shaking. Prevents long-term use. Since the first denture base A1 that directly touches the mucosal surface Mg is thin and deformable, there is also a sense of incongruity and pain that has occurred even when the denture does not shake due to direct contact with the denture base. It is reduced. Further, in the conventional denture D, if a gap is generated due to the deformation of the mucosal surface Mg of the gingiva G, the denture stabilizer D is disposed between the mucosa Mg of the gingiva G and the denture base A, thereby providing the denture D. However, according to the plate denture D1 of the present embodiment, since the first denture base A1 is deformed and the adsorbed state is maintained, it is not necessary to use such a denture stabilizer. Since the first denture base A1 is substantially U-shaped, the first denture base A1 is easily deformed as compared with the case where it is formed in a semi-elliptical shape (see FIG. 5). In addition, the area adsorbed on the mucosal surface M is smaller than that of a substantially semi-elliptical shape (see FIG. 5), but the adsorbed state is maintained by deformation, so that it does not shake or come off. Furthermore, since the entire mucosal surface Mp of the palate P is not blocked by adopting a substantially U shape, saliva is not collected between the mucosal surface M and the first denture base A1 and is supplied into the oral cavity. Is done.

  On the other hand, since the second denture base A2 has a certain thickness and hardness suitable for fixing the artificial tooth 1, the artificial tooth 1 is embedded and fixed at a sufficient depth as usual. Thus, the stability of the artificial tooth 1 is ensured and the occlusal force is dispersed. The impression of the wearer (patient) wearing the plate denture D1 according to the present embodiment is that it is possible to obtain an excellent wearing feeling without shaking the plate denture D1, and it was good.

  In addition, when either the first denture base A1 or the second denture base A2 is damaged, it is possible to replace only one denture base as necessary, and the wearing feeling before breakage is extremely high. There is no loss. For example, even if a part of the artificial tooth 1 or the second denture base A2 is damaged, only the denture base A2 on which the artificial teeth 1 are arranged may be replaced. The first denture base A1 can be used as it is, and the first denture base A1 maintains the feeling of wearing before breakage.

  FIG. 5 shows a denture base D11 for the upper jaw in another example in the present embodiment. The upper denture base D11 has a double structure of the first denture base A1 and the second denture base A2 as in the denture base D1, but the first denture base A1 has a substantially semi-elliptical shape. Presents. When the denture base D11 is mounted, the first denture base A1 covers the gingival G and the mucosal surfaces Mg and Mp of the palate P (FIG. 6). Although the denture base is relatively difficult to adsorb on the upper jaw side, by making the denture base D11 into a substantially semi-elliptical shape, the joint surface with the upper jaw becomes wide and is fixed with a strong adsorbing force.

(Second Embodiment)
As shown in FIGS. 7 and 8, the denture D <b> 2 according to the second embodiment of the present invention is an elastic body having an elastic force between the first denture base A <b> 1 and the second denture base A <b> 2. 4 is arranged. As the elastic body 4, a sheet-like adhesive having elasticity as shown in FIG. 7 may be used. A sheet-like elastic body having no adhesive force may be disposed together with an adhesive so that the first denture base A1 and the second denture base A2 are overlapped and joined. It is also possible to increase or decrease the number of the sheet-like elastic bodies 4 to adjust the elasticity according to the degree of pressurization when the wearer chews.

  When the first denture base A1 is deformed in accordance with the deformation of the mucosal surface Mg of the gingiva G, there is an inconsistency in the overlapping state of the first denture base A1 and the second denture base A2, and the first denture. Although there is a case where the floor A1 and the second denture base A2 are rattled and the feeling of wearing may be impaired, the base denture D2 of the present embodiment is arranged between both denture bases A1 and A2. The elastic body 4 absorbs this mismatch and the feeling of wearing is not impaired. Since the denture bases A1 and A2 are overlapped via the elastic body 4, a situation in which they are brought into contact with each other and damaged is also prevented. In addition, the elastic body 4 also serves as a cushioning material that absorbs a longitudinal impact generated by occlusion, and the wearing feeling becomes better. In addition, although the cushioning material which absorbs an impact may be arranged also in the conventional denture D, this cushioning material is arranged in the position which touches the mucous membrane surface M of the gingiva G or palate P, but this In the base denture D1 of the embodiment, since the elastic body 4 that also serves as a cushioning material is arranged between the first denture base A1 and the second denture base A2, the impact due to occlusion is compared to the conventional case. It is difficult to be transmitted to the gingiva G, the burden on the gingival G is reduced, and there is a great effect that absorption of the alveolar bone B due to constant vibration is prevented.

  In the above embodiments, the dentures D1, D11, and D2 having two denture bases A1 and A2 have been described. However, a third denture base is provided between the first denture base A1 and the second denture base A2. Thus, it is also possible to overlap three or more denture bases. Further, the denture denture DD for the lower jaw is almost the same as the denture dentures D1, D11, and D2.

  Further, the dentures D1, D11, D2 of the respective embodiments are obtained by adjusting the denture bases A1, A2 formed of the same material to suitable thicknesses according to their roles. You may form using the material which has suitable hardness according to each role, making floor A1, A2 into substantially the same thickness. Specifically, the first denture base A1 is formed of a soft material that can be deformed in accordance with the deformation of the mucosal surface Mg of the gingiva G, and the artificial tooth 1 is stably fixed to the second denture base A2. By forming it with a hard material of a certain degree, each denture base A1, A2 has a suitable hardness according to its role. For example, a soft and elastic resin may be used as the material of the first denture base A1, and a resin harder than the first denture base A1 may be used as the material of the second denture base. In this case, the hard second denture base A1 secures the artificial tooth 1 by fixing the artificial tooth 1, while the soft first denture base A1 is the mucous membrane of the gingiva G. By deforming in accordance with the deformation of the surface Mg, the close contact state is maintained, and the base denture D1 is prevented from shaking. Since the first denture base A1 is soft, even if it directly contacts the mucosal surface Mg of the gingiva G, discomfort and pain hardly occur. In addition, there is an advantage that vibrations in the vertical direction due to occlusal motion and the like are absorbed.

(Manufacturing method of the denture of the present invention)
The method for producing a denture of the present invention will be described by taking the dentures D1 and D2 of the above embodiment as an example. Here, the case where it manufactures using the polysulfone which is a dental synthetic resin of the type hardened | cured and cured by general heating is demonstrated. As the thermoplastic resin that is a material for the denture base, a polymer that is preferable as a denture base material in terms of dental science and engineering, such as an acrylic resin or a sulfone resin, may be used. A polysulfone resin having a high mechanical strength and excellent vibration resistance and almost no residual monomer is preferred.

  In manufacturing the first denture base A1, (1-1) first, a gypsum model (study model) showing the state of the upper jaw is formed. (1-2) Performing gingival mold making (impression collection), (1-3) pouring gypsum into this mold to form a gypsum mold, and (1-4) waxing the wax mold raised from this gypsum mold. To form a wax bank with a predetermined thickness. (1-5) The first denture base A1 is manufactured by replacing the wax portion with polysulfone by the lost wax method. Since the first denture base A1 can be manufactured separately from the second denture base A2, it is suitable for covering the gingival G and the mucosal surface Mg of the palate without considering the stability and occlusal force of the artificial tooth 1. Production with material and thickness becomes possible.

  On the other hand, the second denture base A2 is manufactured after the first denture base A1 is manufactured. (2-1) First, a gypsum model showing the joint surface side of the first denture base A1 with the second denture base A2 is formed. (2-2) Molding (impression collection) of the first denture base A1, (2-3) pouring gypsum into this mold to form a gypsum mold, and (2-4) further removing wax from the gypsum mold. Form a bank. (2-5) Artificial teeth 1 are arranged on this bank and a temporary denture base (wax bank) is created. (2-6) The second denture base A2 in which the artificial teeth 1 are arranged is manufactured by replacing the wax portion with polysulfone by the lost wax method. The second denture base A2 can be manufactured separately from the first denture base A1, and can be manufactured with a material and thickness suitable for the stability of the artificial tooth 1 without considering the wearing feeling. In addition, about other processes, such as manufacture and arrangement | sequence of the artificial tooth 1, it is the same as that of the conventional denture base.

  The manufactured first denture base A1 and second denture base A2 are overlapped and connected via a connecting means such as an adhesive to form integrated dentures D1 and D2. When connecting both denture bases A1 and A2, in the case of the base denture D1 of the first embodiment, as shown in FIG. 2, the first denture base A1 or the second denture base A2 is placed at a predetermined position. After the adhesive 3 is applied, the denture bases A1 and A2 are overlapped and connected. When the elastic body 4 is arranged between the denture bases A1 and A2 as in the denture base D2 of the second embodiment, it is placed at a predetermined position on the first denture base A1 or the second denture base A2. After applying the adhesive 3 or the like, the elastic body 4 is arranged between the denture bases A1 and A2, and the sheet-like silicon resin 4 having the adhesive applied on both sides is sandwiched as shown in FIG. Connect by overlapping.

  In addition, when either the first denture base A1 or the second denture base A2 is damaged, only one damaged denture base is newly manufactured and replaced as necessary. With respect to the other denture base, which is not present, it is possible to repair the damage of the dentures D1, D11, and D2 while leaving the delicate feeling familiar to them. In addition, according to the manufacturing method of the present embodiment, the conventional manufacturing process requires two steps. However, the subtle feeling familiar to the user is not greatly deviated, and there are more effects than that.

  As described above, in each of the above embodiments and manufacturing methods, the complete denture bases D1, D11, DD, and D2 for making up for all the natural tooth defects have been described.・ It can also be applied to local dentures. However, the first denture base A1 needs a certain area so that the first denture base A1 can be adsorbed to the mucosal surface Mg of the gingiva G. It is preferable that the denture is a denture.

  In the above embodiments and manufacturing methods, U-shaped denture bases D1 and D2 that cover only the mucosal surface Mg of the gingiva G and do not cover the mucosal surface Mp of the palate have been described. It can also be applied to a substantially semi-elliptical denture base D11 (see FIG. 5) covering the mucosal surfaces Mg and Mp of the above. Further, the present invention is not limited to a denture having a denture base made of resin such as resin or sulfone, but a denture base made of resin is used on a portion covering the mucosa surface Mg of the gingiva G, and the mucosa surface Mp of the palate P is set. The present invention can also be applied to a metal floor in which metal is used for a portion to be coated.

The perspective view which shows the base denture for the upper jaw and the base denture for the lower jaw of the 1st Embodiment of this invention Exploded perspective view of the upper denture for the maxilla of the first embodiment Sectional drawing of the denture for the upper jaw of the said 1st Embodiment The figure which shows the mounting state of the denture of the said 1st Embodiment. The figure which shows the base denture for upper jaws of the other example in the said 1st Embodiment. The figure which shows the mounting state of the floor denture for upper jaws of the other example in the said embodiment. The exploded perspective view which shows the base denture for the upper jaw of the 2nd Embodiment of this invention Sectional drawing which shows the base denture of the said 2nd Embodiment The figure which shows the mounting state of the plate denture of the said 2nd Embodiment. The figure which shows the denture of a conventional example The figure which shows the use condition of the denture of a conventional example

Explanation of symbols

D, DD, D1, D11, D2 Plated denture D, D1, D11, D2 Plated denture for upper jaw DD Plated denture for lower jaw 1 Artificial tooth 2 Reinforcement member 3 Adhesive 4 Elastic body A1 First denture base A2 Second denture base G Gingiva P Palate M Mucosal surface Mg Gingival mucosal surface Mp Mucous surface of palate B Alveolar bone L Center line

Claims (3)

First and denture base coating the mucosal surface or gingival and mucosal surfaces of the palatal gingiva, having at least two denture base with a second denture base artificial teeth are arranged, the first denture The first denture base and the second denture base can be deformed in accordance with the mucosal surface of the gingiva, and an elastic body having an elastic force is disposed between them via an adhesive and overlapped. Plated denture, characterized by The denture according to claim 1, wherein the elastic body is an elastic slow pressure attachment that allows replacement of either the first denture base or the second denture base.   The denture base according to claim 1, wherein the first denture base and the second denture base are upper denture bases having a substantially U shape.

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