JPS6066740A - Denture having bed - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a denture with a denture, and more particularly to a denture with a denture that feels good on the tongue and when worn.

Among conventional dentures called complete dentures, maxillary dentures have a cast denture base body 1 (palatal part) as shown in Figure 1.
An artificial tooth 2 is implanted in the holding portion Ha, and a peripheral portion 3 is formed of a gum-colored synthetic resin to form an integral structure. In addition, for insurance treatment, the denture base body l is integrally formed of the same synthetic resin as the peripheral part 3. Such synthetic resin denture bases are made thick due to the brittleness of the material, making them extremely uncomfortable to wear in the mouth, and many people prefer metal bases such as cobalt chrome, which can be made thinner.

However, even if it is thin metal, it is hard and feels uncomfortable when worn (Also, the sensitive tip of the tongue always comes into contact with the part 1b that touches the tip of the tongue, that is, the part indicated by the dotted line in Figure 2, causing a feeling of a foreign body. Many people are concerned about this because they feel it.Therefore,
If the part where the tip of the tongue touches is cut out 86 as shown in Fig. 3, this foreign body feeling at the tip of the tongue can be alleviated, but
It is impossible to form the cutout 6 here.

In other words, even if the marginal part 3 of a complete denture is fitted by a dentist, it will not be fixed and will fall off, and the marginal part 3 and the denture base l will fall out between the gums and the upper palate. This is because they are made to be in close contact to create a vacuum-like negative pressure and are maintained by adsorption.

On the other hand, unlike maxillary dentures, full dentures with mandibular bases have varying alveolar ridges, and the thickness of the denture base cannot be made constant. Therefore, in order to provide a mandibular full denture with good stability and a pleasant feel, it is necessary to consider the surface of the base.

f rc Local dentures are used to replace one or several missing teeth. In the case shown in FIG. 5, the remaining teeth are a mandibular denture in the anterior and molar regions, and moreover, it is formed on both sides with part of the floor connected with metal and synthetic resin. For the maxillary local denture base, use the balata bar 2 as shown in figure m9.
For position 2, the roof of the mouth is wide, so choose the back part where the tongue feels as little as possible.

Mandibular local dentures, like the shape shown in Figure 5, always touch the tip of the tongue and have a strong foreign body sensation, making them as narrow as possible by making them thinner by metal casting. When it comes to metal wires, the metal wire looks like a somewhat oval No. 8 wire, so it feels particularly foreign.

As mentioned above, dentures are extremely uncomfortable to wear, and there is no choice but to put up with the foreign body sensation and get used to it.

This invention was invented for the purpose of providing a denture with a good feel on the tongue and when worn, in order to solve these problems. The present invention relates to a denture with a backing, characterized in that it is formed by adhering a film layer made of material.

According to the present invention having the above structure, a film layer made of a soft synthetic resin material having the same softness as the skin is adhered to the denture base body, so that it feels good when worn and does not feel like a foreign body even when the tip of the tongue touches it. It has a relaxing effect.

Embodiments of the present invention will be described below based on the drawings. Third
Figure 3 is a bottom view of a maxillary denture according to the present invention. The conventional denture 4 can be used as is. A cutout part 6 is formed in the upper palate part of the denture base body 5 close to the front teeth only in the part where the tip of the tongue touches. In the figure, reference numeral 7 is an artificial tooth, and 8 is a marginal portion. A film layer 9 made of a soft synthetic resin material such as vinyl resin is adhered to the surface of the denture base 50, and the edge portion of the core film layer 9 that contacts the marginal region 8 is a 70-degree peripheral region 8. As shown in the cross-sectional view of FIG. 4, the upper and lower coating layers 9, 9 are adhered to each other in the cutout portion 6. As shown in the cross-sectional view of FIG.

This maxillary denture with the above structure has a thin film layer made of soft synthetic resin adhered to the surface of the denture base body, so it feels soft in contact with the upper palate, and the tip of the tongue touches the upper palate of the denture base. Even if it hits, the denture base does not feel hard because a resection part has been formed in that area, and you can feel the warmth of the upper palate on the tip of your tongue through the soft membrane layer, and the upper palate can also feel the warmth of the tip of your tongue. This has the effect of alleviating the unpleasant sensation of a foreign body and enabling accurate pronunciation. Moreover, even if the resection part is formed in the denture base body, it is closed by the film layer, so that when the denture base body is worn, the effect of bringing the denture base body into close contact with the upper palate is superior to that of the conventional denture base body.

When the above-mentioned film layer is formed into a porous water-permeable material by mixing a foaming agent into the synthetic resin material, it has the effect of providing cushioning properties, impregnated with saliva, and making the palate feel similar to human skin. In addition, by forming the wrinkles that are formed on the roof of the mouth, that is, the pattern of palatal folds, in an uneven shape on the surface of the membrane layer, the smooth and unnatural feel of the membrane layer is eliminated, creating a feel that is similar to that of the natural palate. be able to. @Figure 5 shows a lower jaw denture for local use. 1゜Even though the lower jaw denture 9 is a complete denture, the denture base body 10 is approximately U.
It is the plane of the glyph. This is because there is no need to apply a vacuum to make the dentures fit tightly, unlike upper dentures. Code 1 in Figure 5
1 is a marginal part % 12 is an artificial tooth, and 14 is a fitting piece that fits into a gap between natural teeth 13 to prevent movement.

When such a denture 9 is worn, the tip of the tongue touches the surface of the denture base body 100 adjacent to the front teeth, giving a feeling of a foreign body, and the feeling of wearing the denture is also unpleasant, as if hitting a hard object. Therefore, a coating layer 15 made of a soft synthetic resin material was formed on the surface of the denture base 10 as shown in Figure M6 and below. These film layers 1
The fibers forming part 5 are porous and water permeable, so they have excellent cushioning properties and texture.

FIG. 8 shows an embodiment in which a large number of resection portions 19, 19, . In these embodiments, the denture base body 18 has a cutout 19.
．． 19... is formed, it has the advantage of being light in weight and has the effect of reducing the feeling of pressure on the upper palate. The film layer 20 is formed on the surface of the denture base body in the same manner as shown in FIG. 4, and is stretched over the resection portions 19, 19, . . . in the form of a cover.

This invention is not limited to the above configuration. K indicates that the film layer is formed on both sides of the denture base.
It may be on only one side, or in the case of one side, different types of film layers may be deposited in different shapes. FIG. 9 shows an embodiment in which the denture base body of the local maxillary denture 21 uses a balata bar 22, and is fixed to the remaining teeth with a hook 23 with a double-winged rest. The coating layer can be formed by bonding the coating with an adhesive, or by fitting the denture base into a mold and pouring a resin material into the denture base to form the denture base integrally. There is also a method of adhering or coating synthetic resin fine particles by electrostatic coating.

[Brief explanation of drawings]

Figure 1 is a conventional denture base body (metal), Figure 2 is a conventional maxillary denture, Figures 81!3 and below relate to this invention, Figure 3 is a bottom view of an unfinished denture, and Figure 4 is a sectional view of the denture (upper jaw), FIG. 5 is a plan view of the denture (lower jaw), FIG. 6 is a sectional view taken along line A-A in FIG. 5, and FIG.
The cross-sectional view and FIGS. 8 and 9 are bottom views of dentures (upper jaw) showing other embodiments. 4... Denture with base (upper jaw) 5... Denture base body 6...
Resection part 7... Artificial tooth 8... Marginal part 9... Film layer lO... Denture base body 11... Marginal part 12... Artificial tooth 13... Natural tooth 14... - Fitting piece 15... Film layer 16... Denture with backing (lower jaw) 17... Denture with backing (upper jaw) 18... Ring drawing base body 19... Resection part 20... Film r -21... Denture with base (upper jaw) 22... Balatar bar 23... Hook with wing rest 24... Film layer

Claims (1)

[Scope of Claims] (11) A denture with a backing, characterized in that a film layer made of a soft synthetic resin material is adhered to the surface of a denture base body made of a metal or a synthetic resin material. The denture according to claim 1, wherein the membrane layer is porous and water permeable. (3) In the denture, the maxillary denture base body forms a resection part in the palate. At the same time, a film layer formed on the surface of the denture base body is stretched over the resection portion in the form of an extended cover. (4) In the denture with a denture, palatal folds are formed on the surface of the film layer. Dentures with dentures as described in any of the above.