JP3411527B2 - Non-adsorbent denture and denture base and method for producing the same - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a non-adsorptive denture and denture base and a method for producing the same, and particularly to a denture and a denture base palate surface without coating the denture and denture base with a non-adhesive substance. The present invention relates to a denture and a denture base having a non-adsorptive property obtained by forming a rough surface by itself and polishing the denture and a method for producing the same.

[0002]

2. Description of the Related Art Dentures and denture bases (dentures) made of synthetic resin
As a denture and a denture base made of acrylic resin, in particular, a resin, which is relatively inexpensive, easy to manufacture, and functionally satisfactory. One of the drawbacks of synthetic resin dentures is that when chewing gum, mochi, candy and other sticky foods are eaten, the chewing gum adheres to the dentures and denture base, or the dentures come off. There are drawbacks such as being lost.

In order to eliminate such defects, a method of applying a fluororesin-based coating agent to the surface of the denture to impart non-adhesiveness has been adopted.

However, according to the method of applying the fluororesin-based coating agent to the denture and the denture base, what type of coating agent should be selected and what method should be applied, and the wear resistance of the application surface should be determined. There are problems such as how to improve, and it is quite difficult to select the optimum combination from them. Above all, the improvement of wear resistance is a point that requires special devise because the application surface is always kept in a state of being easily worn by chewing hard food such as rice cracker or biting between dentures.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to coat a denture and a denture base with a non-adhesive substance in order to impart non-adhesiveness. Denture and denture base having a non-adhesive property that is inexpensive and easily manufactured by forming a rough surface on the denture and denture base palate surface and polishing the rough surface To provide.

[0006]

The present invention has taken the following technical means in order to solve the above problems.

[0007]

In order to obtain a non-adhesive denture which is inexpensive and easy to manufacture, in the artificial resin denture, the denture surface is roughened by sandblasting,
A non-adsorptive denture characterized by being formed into an uneven surface formed by buffing the rough surface. Also,
In order to make a denture base that is inexpensive and easy to manufacture and has non-adhesive properties, in a denture base made of synthetic resin, the denture base palate surface is roughened by sandblasting, and the roughened surface is buffed. A denture base having a non-adsorptive property, which is characterized in that it is formed in a concavo-convex surface shape.

Further, in a synthetic resin denture, a rough surface treatment step of forming a rough surface on the denture surface by sandblasting and a polishing finishing step of buffing the uneven surface formed by the above step. And a method for producing a non-adsorptive denture. Further, in a synthetic resin denture base, it comprises a rough surface treatment step of forming a rough surface on the denture base palate surface by sandblasting, and a polishing finishing step of buffing the uneven surface formed by the step. A method for producing a non-adsorptive denture base characterized by the above.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below in detail with reference to the drawings.

In the present embodiment, for the sake of convenience of explanation, description will be given on the premise that a total denture is used. FIG. 1A shows an upper denture base and a denture. Moreover, FIG.1 (b) has shown the lower jaw denture base and denture.

The synthetic resin-made denture and denture base (hereinafter referred to as denture) in the present embodiment are made of a resin, which is an acrylic resin, and molded by a gypsum mold or the like. Resin is generally used as a material for dentures because it is relatively inexpensive, easy to mold and repair, and has the strength required for dentures and denture bases. Recently, a hard resin having a color and hardness close to that of natural teeth has been developed.

As shown in FIGS. 1 (a) and 1 (b), the dentures 1a and 1b are composed of denture bases 3a and 3b and dentures 5a and 5b planted therein. Also, the denture bases 3a, 3b
Of the denture bases 7a and 7b other than the portions that are in close contact with the upper and lower jaws. When the dentures 1a and 1b are attached and food having an adhesive property such as chewing gum, rice cake, and candy is eaten, the chewing gum and the like often adhere to the dentures 5a and 5b and the denture bases 7a and 7b. Denture 1a,
If chewing gum or the like adheres to 1b, the dentures 1a and 1b will be dislodged or will remain adhered, which will be an inconvenient situation.

In order to avoid such an inconvenient situation,
In the invention in the present embodiment, the dentures 5a, 5b
The surface layer 9 and the surface layer 9 of the denture base palate 7a, 7b,
A denture and a denture base having a non-adsorptive property, which are formed so as to have a finely textured surface by themselves, were constructed. Denture 5a, 5
surface part 9 of b and denture base palate parts 7a, 7b
However, by being formed so as to have a fine uneven surface shape by itself, the adsorption state (decompression state) on the contact surface between the food having adhesiveness such as chewing gum and the dentures 1a, 1b is avoided, and The adsorption power of is reduced. Moreover, the surface of the dentures 1a and 1b is not coated with a non-adhesive substance,
Since 1b itself retains the non-adsorptive property, a decrease in the non-adsorptive property due to abrasion of the coated surface can be avoided.

Denture 5 of resin dentures 1a, 1b
In the present embodiment, sandblasting is used as a method for forming fine uneven surfaces on the surface layer portions 9 of the a, 5b and the denture base palate portions 7a, 7b. That is, a large number of stainless steel balls having a diameter of 0.3 mm are compressed by a compressor at 1 atm for about 2 minutes, and the dentures 5a and 5b and the denture base palate 7
A rough surface is formed by spraying uniformly on a and 7b.

FIG. 2 shows a denture 1 that has been sandblasted.
It is a schematic partial expanded view which shows the surface layer part longitudinal cross section of a and 1b.
Surface layer part 9 of dentures 5a, 5b and denture base palate parts 7a, 7b
As shown in FIG. 2, the fine uneven surface 11 is formed by sandblasting. Fine uneven surface 11
Is a sticky food such as chewing gum and dentures 1
It is a minimum amount necessary for avoiding a suction state (a reduced pressure state) on the contact surface with a and 1b, and does not cause a feeling of strangeness in the mouth.

The surface layer portion 9 having a rough surface formed by sandblasting is polished to eliminate the surface roughness. That is, the roughened surface layer portion 9 is buffed with a woven or non-woven fabric having an abrasive material adhered to its surface to form a smooth uneven surface. This further reduces the discomfort in the mouth.

FIG. 3 is a schematic partial enlarged view showing a vertical cross section of the surface layer portion of the buffed dentures 1a, 1b. Denture 5a,
As shown in FIG. 3, the rough surface-formed surface layer portion 9 of 5b and the denture base palate portions 7a and 7b is formed as a smooth uneven surface 13 by buffing.

The smooth uneven surface 13 avoids the adsorption state (depressurized state) on the contact surface between the dentures 1a and 1b and the sticky food such as chewing gum as in the above sand blasting process, and gives a feeling of strangeness in the mouth. It is said to have been polished to such an extent that it does not cause

Dentures 5a, 5b and denture base palate portions 7a, 7
The surface of b is roughened by sandblasting,
Since the rough surface is formed by buffing to form an uneven surface, the sticking state (depressurized state) on the contact surface between the adhesive food such as chewing gum and the dentures 1a and 1b can be avoided. The adsorption force is reduced and the fine and smooth uneven surface is formed, so that the adhesion of food in the mouth and the feeling of strangeness are eliminated.

Further, since it is not coated with a substance having non-adhesiveness, pressure applied to teeth when chewing hard food such as rice crackers or biting teeth which is said to be almost equal to the weight of the person. Therefore, the coated surface is not worn.

In the present embodiment, the dentures made of resin have been described. However, by appropriately changing the sandblasting method and the grinding and finishing method according to the material of the floor and artificial teeth, various materials can be prepared. It can accommodate floors and artificial teeth.

If desired, an uneven surface may be formed on either the denture or the palate of the denture base.

Further, it is sufficient that the surface of the denture and the palate of the denture base itself is formed into an uneven surface.
It may be molded by forming fine irregularities on the molding surface of a mold such as gypsum in advance.

As is clear from the above description, the method for producing a non-adsorptive denture and denture base according to the present invention comprises a roughening treatment step of forming a rough surface on the denture and denture base palate surface by sandblasting. The polishing finishing step of buffing the uneven surface formed by the step.

Therefore, as compared with the method of applying the fluororesin-based coating agent, it is possible to avoid problems such as the selection of the coating agent, the coating method, and the abrasion resistance of the coated surface, and the number of production steps is small. It greatly contributes to the improvement of productivity.

[0027]

As described above, according to the present invention, since the denture and the surface of the denture base palate are formed into a fine uneven surface so as to maintain non-adhesiveness by themselves,
The suction state (depressurized state) on the contact surface between the denture and the sticky food such as chewing gum is avoided, and the mutual suction force is reduced.

Further, according to the present invention, since the surfaces of the denture and the palate of the denture base are not coated with a non-adhesive substance, the non-adhesiveness does not decrease due to the abrasion of the coated surface. .

Further, since the present invention comprises a rough surface treatment step for forming a rough surface on the denture and the denture base palate portion and a polishing finishing step for polishing the rough surface, it is easy to process and the productivity is improved. It is great to contribute to.

[Brief description of drawings]

FIG. 1A is a schematic view showing an upper denture base and a denture. (B) is a schematic diagram showing a lower denture base and a denture.

FIG. 2 is a schematic partial enlarged view showing a vertical cross section of a surface layer portion of a denture subjected to sandblasting.

FIG. 3 is a schematic partial enlarged view showing a vertical cross section of a surface layer portion of a buffed denture.

[Explanation of symbols]

1a, 1b false teeth 3a, 3b Denture base 5a, 5b denture 7a, 7b denture base palate 9 Surface layer 11 Fine uneven surface 13 Smooth uneven surface

Claims (4)

(57) [Claims] 1. A synthetic resin denture, characterized in that the denture surface is roughened by sandblasting, and is roughened by buffing. Dentures with. 2. In a denture base made of synthetic resin, the surface of the palate portion of the denture base is roughened by sandblasting, and is roughened by buffing the roughened surface. A non-adsorptive denture base. 3. A synthetic resin denture comprising a rough surface treatment step of forming a rough surface on the denture surface by sandblasting and a polishing finishing step of buffing the uneven surface formed by the step. A method for producing a non-adsorptive denture. 4. A synthetic resin denture base, a rough surface treatment step of forming a rough surface on the denture base palate surface by sandblasting, and a polishing finish step of buffing the uneven surface formed by the step. A method for producing a non-adsorptive denture base, comprising: