JP2017086582A - Artificial denture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an artificial denture capable of improving stability during mastication.SOLUTION: An artificial denture 1 is configured so that plural artificial teeth 3, 4 are coupled to an artificial denture base 2. The artificial denture base 2 comprises a base plate 5 facing an alveolar ridge, and an artificial denture base body 6 formed of a soft resin, and having root parts 7, 9 of the artificial teeth 3, 4 embedded. A part (artificial tooth 4) of the plural artificial teeth 3, 4 is not fixed to the base plate 5. The artificial tooth 4 not fixed to the base plate 5 has holes 11, 12, 13 on the root part 9. The artificial denture base body 6 penetrates the holes 11, 12, 13 of the artificial tooth 4 not fixed to the base plate 5.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a denture (denture).

  Dentures may give pain to the ridges when the ridges supporting the dentures are uneven in the alveoli. As a denture for relieving such a pain, a soft denture in which a portion facing a jaw ridge in a denture base serving as a base is made of a soft material such as a soft resin is widely used (for example, see Non-Patent Document 1).

  According to such a soft denture, the feeling of use becomes soft, so that it is possible to reduce the uncomfortable feeling during wearing or chewing. In addition, the stability at the time of wearing and mastication increases, so that the masticatory power is improved.

Silver Dental Laboratory Co., Ltd., [online], Products / Services> Related floors> Soft floor (Soft denture), [October 22, 2015 search], Internet (URL: http: //www.silver-dental .co.jp / dentures / soft.html)

  The occlusal pressure applied to the denture during mastication becomes unstable due to the difference in size and hardness of the bolus, and not only in the vertical direction but also in all directions, front, rear, left and right. For this reason, even if a soft denture is used, it may give a pain to the ridge or may come off the ridge. This is because the occlusal pressure concentrated on one point acts by concentrating on one point according to the principle of lion and destabilizes the denture.

  For such problems, various stabilizers and soft materials are commercially available in Japan and overseas, but none of them can sufficiently stabilize dentures.

  This invention is made | formed in view of the said subject, and it aims at providing the denture which improved stability at the time of mastication.

  (1) The present invention is a denture in which a plurality of artificial teeth are bonded to a denture base, and the denture base is composed of a base plate facing the jaw ridge and a soft resin, and a root portion of the artificial tooth is buried. A denture base body, and some or all of the plurality of artificial teeth are not fixed to the base plate, and the artificial teeth not fixed to the base plate have a hole in the root portion, and the denture base body Is a denture that is inserted into a hole of an artificial tooth that is not fixed to the base plate.

  According to the present invention, the artificial tooth can be provided with cushioning properties, and excess occlusal pressure during mastication can be reduced. Thereby, the upper and lower jaw ridges are protected, and the masticatory efficiency can be increased. As a result, it is possible to simultaneously bite and crush a bolus of different thickness and hardness on the left and right.

  Since complicated parts and mechanisms such as springs and attachments are not provided, not only manufacturing but also repair and maintenance can be performed easily and inexpensively.

  The occlusal pressure can be reduced not only when both the upper and lower sides are artificial teeth, but also when one of the upper and lower sides is an artificial tooth and the other of the pair is a natural tooth. For this reason, when the natural tooth which exists in a pair is ill and being treated, the stimulation to the natural tooth under treatment can be reduced, and the treatment can be performed efficiently.

  (2) The present invention also provides the denture according to (1) above, wherein the hole has a vertical vertical hole and a horizontal hole penetrating the cross in the horizontal direction.

  According to the above invention, the artificial tooth having a cushioning property has a structure that can easily move up and down, front and rear, and left and right, and stability during mastication is improved.

  (3) In the present invention, the coupling is interposed between the artificial tooth that is not fixed to the base plate and the denture base body, and strengthens the coupling force between the artificial tooth that is not fixed to the base plate and the denture base body. The denture according to (1) or (2) above, which is provided with a material.

  According to the said invention, the force of a coupling | bonding with an artificial tooth and a denture base main body can be strengthened. Thereby, possibility that an artificial tooth will remove | deviate from a denture base can be reduced.

  (4) The present invention is the denture according to any one of (1) to (3), wherein a part of the plurality of artificial teeth has a root portion fixed to the base plate.

  According to the above invention, the artificial tooth that is not fixed to the base plate reduces the occlusal pressure, whereas the artificial tooth that is fixed to the base plate does not reduce the occlusal pressure. For this reason, it can be set as the denture according to a case, a policy, etc. by choosing and producing for each of a plurality of artificial teeth with the presence or absence of fixation to a baseplate.

  The dentures described in the above (1) to (4) of the present invention are unprecedented and can improve the stability during mastication.

It is a top view of the denture based on embodiment of this invention. It is a front view of a denture. It is a side view of a denture. It is a side view of an artificial tooth. It is a bottom view of an artificial tooth. It is sectional drawing of the artificial tooth seen in the arrow VI-VI direction of FIG. It is a longitudinal cross-sectional view which shows the principal part of a denture. It is sectional drawing of the denture seen from the arrow VIII-VIII direction of FIG.

  Hereinafter, with reference to drawings, denture 1 concerning an embodiment of the present invention is explained in detail. In the drawings, arrow F1 indicates the front, arrow B1 indicates the rear, arrow L1 indicates the left, arrow R1 indicates the right, arrow U1 indicates the upper side, and arrow D1 indicates the lower side. In the following description, each direction means a direction in the denture 1.

  First, the structure of the denture 1 is demonstrated using FIGS. FIG. 1 is a top view of the denture 1. FIG. 2 is a front view of the denture 1. FIG. 3 is a side view of the denture 1. FIG. 4 is a side view of the artificial tooth 4. FIG. 5 is a bottom view of the artificial tooth 4. 6 is a cross-sectional view of the artificial tooth 4 viewed in the direction of arrows VI-VI in FIG. FIG. 7 is a longitudinal sectional view showing a main part of the denture 1. FIG. 8 is a cross-sectional view of the denture 1 viewed in the direction of arrows VIII-VIII in FIG.

  Note that in each drawing, a part of the configuration is omitted as appropriate to simplify the drawing. In each drawing, the size, shape, thickness, etc. of the members are exaggerated as appropriate.

  As shown in FIGS. 1 to 3, the denture 1 is a mandibular denture with a plurality of artificial teeth 3, 4 coupled to the denture base 2. The denture according to the present invention is not limited to the lower jaw side, and may be the upper jaw side. Moreover, the denture based on this invention should just be a floor denture, and is not limited to a complete denture, A local denture may be sufficient.

  The denture base 2 has a base plate 5 facing the ridge and a denture base body 6 in which the root portions 7 and 9 of the artificial teeth 3 and 4 are buried.

  The base plate 5 has a shape that fits the chin ridge. For the base plate 5, a resin floor made of a resin (resin) such as an acrylic resin, a metal floor made of metal, a floor made of a soft material, and the like can be appropriately selected. Cobalt chromium, platinum, gold, titanium, or the like can be appropriately selected as the metal constituting the metal floor.

  The denture base body 6 is made of a soft resin (for example, a polymer material) and is coupled to the base plate 5.

  The soft resin constituting the denture base 6 includes methacrylate ester resin, polyacrylic acid, methyl polymethacrylic acid butyl ester, polyfluoroethylene (fluorine) resin, polyalkylsiloxane (silico) resin, polyester resin, Vinyl chloride resin, vinyl acetate resin, vinyl chloride vinyl acetate copolymer, polymethyl methacrylate, polyethyl methacrylate, PMMA (polymethyl methacrylate resin), MMA (methyl methacrylate) -EMA (ethyl methacrylate) copolymer Combined ethylene glycol dimethacrylate and the like can be appropriately selected.

  In particular, the methacrylate ester resin, polymethyl methacrylate, polyethyl methacrylate, PMMA, MMA-EMA copolymer ethylene glycol dimethacrylate is suitable for the soft resin constituting the denture base body 6. In addition, as a soft resin constituting the denture base body 6, a product “Vertex Soft NF” marketed by Vertex-Dental (Netherlands) can be used.

  In the artificial teeth 3 and 4, the root portions 7 and 9 are buried in the denture base body 6. As these artificial teeth 3 and 4, resin teeth, hard resin teeth, porcelain teeth, metal teeth, resin teeth having a portion of the occlusal surface made of metal, calcium teeth, and the like can be appropriately selected. The artificial tooth 3 includes a root portion 7 and a crown 8, and the root portion 7 is fixed to the base plate 5. The artificial tooth 4 includes a root portion 9 and a crown 10, and the root portion 9 is not fixed to the base plate 5.

  As shown in FIGS. 4 to 8, the artificial tooth 4 that is not fixed to the base plate 5 has a vertical hole 11 in the vertical direction and a cross in the horizontal direction as a hole in which the denture base body 6 enters the root portion 9. It has lateral holes 12 and 13 that penetrate therethrough. The denture base body 6 enters the vertical hole 11 and the horizontal holes 12 and 13 of the artificial tooth 4. That is, the denture base body 6 enters the vertical hole 11 and the horizontal holes 12 and 13 of the artificial tooth 4 that is not fixed to the base plate 5.

  As shown in FIGS. 7 and 8, the artificial tooth 4 that is not fixed to the base plate 5 includes a binder 14 on the outer periphery of the root portion 9. The binding material 14 is interposed between the artificial tooth 4 and the denture base body 6 to strengthen the binding force between the artificial tooth 4 and the denture base body 6. In addition, although illustration is abbreviate | omitted, also about the artificial tooth 3, you may make it equip the outer periphery of the root part 7 with the binder similar to the artificial tooth 4. FIG. Further, the bonding material 14 is not an essential component for the present invention.

  For such a binder 14, an immediate weight (immediate polymerization) resin made of an acrylic resin or the like can be appropriately selected. In the case where the above-mentioned product “Vertex Soft NF” is adopted as the soft resin constituting the denture base body 6, an instant heavy resin made of an acrylic resin is suitable for the binder 14.

  Thus, according to the denture 1, the artificial tooth 4 can be provided with cushioning properties, and extra occlusal pressure during mastication can be reduced. Thereby, the upper and lower jaw ridges are protected, and the masticatory effect can be enhanced. As a result, it is possible to simultaneously bite and crush a bolus of different thickness and hardness on the left and right.

  Since complicated parts and mechanisms such as springs and attachments are not provided, not only manufacturing but also repair and maintenance can be performed easily and inexpensively.

  The occlusal pressure can be reduced not only when both the upper and lower sides are artificial teeth 4, but also when one of the upper and lower sides is artificial tooth 4 and the other of the pair is a natural tooth. For this reason, when the natural tooth which exists in a pair is ill and being treated, the stimulation to the natural tooth under treatment can be reduced, and the treatment can be performed efficiently.

  Furthermore, according to the denture 1, the artificial tooth 4 having cushioning properties has a structure that can easily move up and down, front and rear, and left and right, and stability during mastication is improved.

  And according to the denture 1, since the coupling | bonding material 14 is provided, the force of the coupling | bonding with the artificial tooth 4 and the denture base main body 6 can be strengthened. Thereby, possibility that the artificial tooth 4 will remove | deviate from the denture base 2 can be reduced.

  Further, according to the denture 1, the artificial tooth 4 not fixed to the base plate 5 reduces the occlusal pressure, while the artificial tooth 3 fixed to the base plate 5 does not reduce the occlusal pressure. For this reason, it can be set as the denture according to a case, a policy, etc. by choosing and producing for each of a plurality of artificial teeth with or without fixation to baseplate 5.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and technical idea thereof. That is, the position, size, length, quantity, shape, material, and the like of each component can be changed as appropriate.

  That is, in the above embodiment, a case where a part of the plurality of artificial teeth 3 and 4 (artificial teeth 4) is not fixed to the base plate 5 has been described as an example, but the present invention is not limited to this, and a plurality of artificial teeth All of the teeth may not be fixed to the base plate 5.

  Alternatively, in the above embodiment, the mandibular central incisor, the mandibular incisor, and the mandibular canine are artificial teeth 3 fixed to the base plate 5, and the mandibular first premolar, mandibular second premolar, mandibular first premolar The case where the mandibular second molar is the artificial tooth 4 not fixed to the base plate 5 has been described as an example, but the present invention is not limited to this, and whether or not each artificial tooth is fixed to the base plate 5 is selected. can do.

  Or in the said embodiment, although the case where it has the vertical hole 11 and the horizontal holes 12 and 13 in the root part 9 of the artificial tooth 4 was demonstrated to the example, this invention is not limited to this, The denture base main body 6 enters. As long as the hole is open, it may be a hole in any direction.

DESCRIPTION OF SYMBOLS 1 Denture 2 Denture base 3,4 Artificial tooth 5 Base plate 6 Denture base body 7,9 Root part 8,10 Crown 11 Vertical hole (hole)
12, 13 Horizontal hole (hole)
14 Binder

(1) The present invention is a denture in which a plurality of artificial teeth are bonded to a denture base, and the denture base is composed of a base plate facing the jaw ridge and a soft resin, and a root portion of the artificial tooth is buried. And a part or all of the plurality of artificial teeth are not fixed to the base plate, and the artificial teeth not fixed to the base plate are vertically, front and rear, left and right with respect to the denture base body In order to make it movable, the tooth root portion has a vertical vertical hole and a horizontal hole penetrating the cross in the horizontal direction so as to intersect the vertical hole, and the denture base body is fixed to the base plate it is dentures, characterized in that enters the longitudinal hole and the lateral hole of no artificial teeth.

Furthermore , the artificial teeth having cushioning properties are easily movable up and down, front and rear, and left and right, and stability during mastication is improved.

( 2 ) In the present invention, the coupling is interposed between the artificial tooth that is not fixed to the base plate and the denture base body, and strengthens the coupling force between the artificial tooth that is not fixed to the base plate and the denture base body. The denture according to (1) above, comprising a material.

( 3 ) The present invention is the denture according to (1) or ( 2 ) , wherein a part of the plurality of artificial teeth has a root portion fixed to the base plate.

According to the above invention, the artificial tooth that is not fixed to the base plate reduces the occlusal pressure, whereas the artificial tooth that is fixed to the base plate does not reduce the occlusal pressure. For this reason, it can be set as the denture according to a case, a policy, etc. by choosing and producing for each of a plurality of artificial teeth with the presence or absence of fixation to a baseplate.
(4) The denture according to any one of (1) to (3) above, wherein the soft resin is Vertex soft NF.

According to the above invention, the artificial tooth that is not fixed to the base plate reduces the occlusal pressure, whereas the artificial tooth that is fixed to the base plate does not reduce the occlusal pressure. For this reason, it can be set as the denture according to a case, a policy, etc. by choosing and producing for each of a plurality of artificial teeth with the presence or absence of fixation to a baseplate .

The dentures described in the above (1) to ( 3 ) of the present invention are unprecedented and can improve the stability during mastication.

Claims (4)

A denture in which a plurality of artificial teeth are bonded to the denture base,
The denture base includes a base plate facing the ridge, and a denture base body made of a soft resin, in which the root portion of the artificial tooth is embedded,
Some or all of the plurality of artificial teeth are not fixed to the base plate,
The artificial tooth not fixed to the base plate has a hole in the root portion,
The denture base body is inserted into the hole of the artificial tooth that is not fixed to the base plate. The denture according to claim 1, wherein the hole includes a vertical hole in a vertical direction and a horizontal hole penetrating in a cross shape in the horizontal direction. A binding material interposed between the artificial tooth not fixed to the base plate and the denture base body, and strengthening the binding force between the artificial tooth not fixed to the base plate and the denture base body The denture according to claim 1 or 2, wherein the denture is provided. The denture according to any one of claims 1 to 3, wherein a part of the plurality of artificial teeth has the root portion fixed to the base plate.

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