WO2014073824A1

WO2014073824A1 - Dental supplies

Info

Publication number: WO2014073824A1
Application number: PCT/KR2013/009885
Authority: WO
Inventors: 김탁규; 전광수; 곽한호; 채홍원
Original assignee: 한국엔지니어링플라스틱(주)
Priority date: 2012-11-06
Filing date: 2013-11-04
Publication date: 2014-05-15
Also published as: KR101248249B1

Abstract

The present invention relates to dental supplies such as a human or animal denture, a partial denture, a mouthpiece, a splint, a night guard (mouth guard) and the like. Specifically, by improving physical properties of a denture base and the like, which are attached to or detached from gums, in the denture and the like, the dental supplies have good wearability even if being used for a long time, mechanical properties such as fatigue strength, impact strength and the like, and a beautiful appearance, and can be easily manufactured at low cost.

Description

【Specification】

[Name of invention]

Dental supplies

Technical Field

The present invention relates to dental supplies such as dentures, topical dentures, mouthpieces, splints, night guards (mouse guards) for humans or animals. Specifically, by improving the physical properties of the denture base, which is a part detachable to the gum in the denture, etc., the wearability is good even after long-term use, and the mechanical properties such as fatigue strength and layer resistance are excellent, and have an aesthetic appearance. Rather, it relates to a dental article that is easy to manufacture and inexpensive to manufacture.

ί Background Technology]

Since 1930, when dental prosthesis first appeared, research on developing simple and functional dentures, similar herbal dentures, splints, and night guards (mouse guards) has been steadily being conducted in the technical field. . With this effort, while applying polymers to denture bases such as dentures, dentures, etc., which are stronger, lighter and simpler to use, have been developed and commercialized.

As a polymer which can be conventionally applied to the denture base and the like, polymethyl methacrylate (ΡΜΜΑ) ^; Same acrylic polymer, polycarbonate (PC), polyethylene terephthalate (PET) and the like.

However, the polymers are accompanied by shrinkage of the entire volume due to the property of expanding the volume at high temperature during polymerization of the molecule and then expanding the entire volume when the temperature is lowered after the polymerization, which is called 'polymerization shrinkage'. The polymerization shrinkage phenomenon causes a mismatch between the denture base of the denture being used and the mouth of the patient, which leads to patient pain.

In addition, the denture base and the like must maintain its strength with a sufficient elastic force when fixed to the patient's teeth and / or gums, and the elasticity and rigidity to maintain its elasticity and rigidity when repeatedly detached to the teeth and / or gums according to the use In other words, the fatigue strength (fatigue strength) should be excellent, and when the outer layer is applied due to dropping during use, it should be excellent in characteristics that do not break, that is, the layer resistance. In particular, the denture base and the like includes a plurality of thin thin portions that form between adjacent teeth, so securing the layer resistance is particularly important. However, polymers that have been used as materials for the denture base or the like have insufficient mechanical properties such as fatigue strength and layer resistance.

On the other hand, when using a metal reinforcing material to enhance the mechanical properties of the polymer, such as the denture base material, as the metal reinforcing material is exposed to the outside, it is not appropriate to significantly reduce the external aesthetics and marketability of the product. In addition, when using a cross-linked polymer as another method for enhancing the mechanical properties, the elasticity is significantly lowered, causing a decrease in fit and pain of the patient when worn is not appropriate. In addition, in the case of using the crystalline polymer as another method for enhancing the mechanical properties, not only the shrinkage is greatly increased, but also the material itself is transparent and is not suitable for use as a material such as denture base that requires aesthetic appearance. In addition, the denture base and the like to perform the surface processing such as grinding, polishing, polishing (polishing) so that the surface has a smooth touch like the real gums, silver crystalline polymers are conventionally used as a material of the denture base, such as grinding, When polishing or the like, scratches, baffles, etc. are generated on the surface, which takes a long time to produce the final product, which causes an increase in manufacturing cost.

Therefore, the shrinkage rate and the specific gravity are low, so that the patient can wear it comfortably, and the mechanical properties of the fatigue strength and the inner layer resistance are excellent for long-term use. There is a need for simple and inexpensive dentures, local dentures, mouthpiece splints, dental guard materials of night guard (mouse guard), and the dental articles made therefrom.

[Detailed Description of the Invention]

[Technical problem]

According to the present invention, a dental article of a denture base is detachable to a patient's teeth and / or gums, for example, a denture such as dentures that can be comfortably worn by a patient due to low contraction and material loss. An object of the present invention is to provide a dental article.

In addition, an object of the present invention is to provide a dental article, such as dentures that can be used for a long time excellent in the mechanical strength of the fatigue strength and impact resistance of the material constituting the dental article such as dentures.

In addition, the present invention is a transparent part of the dentures such as dentures, which is detachable to the patient's teeth and / or gums, for example, dentures of the dentures An object of the present invention is to provide a dental article such as a denture having an aesthetic appearance, such as having various desired colors.

Furthermore, an object of the present invention is to provide a dental article such as a denture which is simple in manufacturing process and low in manufacturing cost.

Technical Solution

In order to solve the above problems, the present invention,

In a dental article having a detachable part which is detached to the teeth and / or gums of a human or animal, the detachable part is based on an amorphous resin (amorphous) polyamide formed by polycondensation of a fat, i.e., a dicarboxylic acid and an alicyclic diamine. To provide a dental article, characterized in that it is prepared by a composition.

Here, the aliphatic dicarboxylic acid is dodecane diacid, and the alicyclic diamine is bis (4-aminocyclonuclear chamber) methane, it provides a dental article. On the other hand, the aliphatic dicarboxylic acid is a dicarboxylic acid having 17 to 18 carbon atoms, the alicyclic diamine is dialkyl-4,4'-diamino-dicyclonucleosilalkanes, bis (amino-cyclonuclear) alkanes or Provided is a dental article, which is a combination of these.

In addition, the aliphatic dicarboxylic acid is octadecane diacid, and the alicyclic diamine is bis (3-methyl-4-aminocyclonucleus) methane, it provides a dental article.

And, based on the total moles of the aliphatic dicarboxylic acid and the alicyclic diamine, the content of the aliphatic dicarboxylic acid is 30 to 70 mol%, the content of the alicyclic diamine is 70 to 30 mol% To provide a dental supplies, characterized in that.

Furthermore, the aliphatic dicarboxylic acid provides a dental article, characterized in that it comprises 25 to 45 mol% of aromatic dicarboxylic acid, based on the total mole number of the aliphatic dicarboxylic acid and the alicyclic diamine. .

Here, the aromatic dicarboxylic acid is isophthalic acid, terephthalic acid, naphthalenedicarboxylic acid, t-butyl isophthalic acid, 1,1,3-trimethyl-3-phenylindan -4 ', 5-dicarboxylic acid, these Provided is a dental article, characterized in that selected from the group consisting of complexes.

The composition further includes additives selected from stabilizers, flame retardants, antistatic agents, softeners, impact resistant materials, reinforcing agents, layering materials, fluorescent brighteners, lubricants, incorporation reducing agents, polycondensation catalysts, antifoaming agents, and combinations thereof. Wherein each of the additives is To provide a dental article, characterized in that it comprises 0.005 to 0.5% by weight based on the total weight of the composition.

On the other hand, there is provided a dental article, characterized in that the dentures, local denture mouthpiece, splint or night guard (mouse guard).

Here, it provides a dental article characterized in that the dentures.

Advantageous Effects

Dental articles, such as dentures according to the present invention is a material that forms parts of the teeth and / or gums of the patient, for example, dentures of the dentures, compared to other polymers that have been used in the conventional dental supplies and shrinkage rate By adopting a low material, the patient has an excellent effect of wearing more comfortably. In addition, according to the present invention ^: a dental article such as dentures is a material that is detached to the teeth and / or gums, for example, denture base of the dentures by adopting a material having excellent mechanical strength such as fatigue strength, impact resistance ， Can be used for a long time and shows excellent effect to avoid the use of metal reinforcing materials, which impair the appearance aesthetics of the product.

In addition, dental articles such as dentures according to the present invention are excellent materials by adopting a transparent (non-crystalline) polymer which is transparent and easy to color as a material that is detached to teeth and / or gums, for example, denture base of dentures. Excellent effect with aesthetic appearance.

Furthermore, the dental article such as dentures according to the present invention is a material that forms a part detachable to the teeth and / or gums, for example, the denture base of the dentures, and can easily process the surface such as poly and reduce the processing time. By adopting a material having a high quality, the manufacturing process is simple, and thus, an excellent effect is obtained at low manufacturing cost.

[Brief Description of Drawings]

La shows a micrograph after grinding of a dental article comprising a tooth and / or gum detachment prepared by the composition of Example 1 according to the invention. Lb shows micrographs after grinding of a dental article comprising a tooth and / or gum detachment made by the composition of Example 2 according to the invention. FIG. 2 shows a micrograph after grinding of a dental article comprising a tooth and / or gum detachment prepared by a composition comprising a conventional crystalline nylon 12 of Comparative Example 4. FIG.

Figure 3a is a tooth and / or prepared by the composition of Example 1 according to the present invention The micrograph after the polishing process of the dental article containing a gum detachment part is shown.

Figure 3b shows a micrograph after polishing processing of a dental article comprising a tooth and / or gum detachment prepared by the composition of Example 2 according to the present invention.

FIG. 4 shows micrographs after polishing of a dental article comprising a tooth ^' and / or gum detachment prepared by a composition comprising a conventional crystalline nylon 12 of Comparative Example 4. FIG.

[Best form for implementation of the invention]

Dental articles such as dentures according to the present invention use amorphous (amorphous) polyamide as the base resin constituting a material which forms a part detachable to teeth and / or gums, for example, the denture base of dentures and the like.

The amorphous (amorphous) polyamide may be prepared by polycondensation of aliphatic dicarboxylic acid and alicyclic diamine. Here, the cycloaliphatic diamine is bis (4-aminocyclonuclear chamber) alkanes, preferably bis (4-aminocyclonuclear chamber) methane (PACM), bis (4-aminocycloheterosilane) propane, dialkyl-4,4 '-Diamino-dicyclonucleosilalkanes, preferably bis (3-methyl-4-aminocyclonuclear) methane (MACM), 1-amino-3-aminomethyl-3,5,5-trimethylcyclonucleic acid or the like or It may be a combination thereof.

On the other hand, the aliphatic dicarboxylic acid may be selected from dicarboxylic acids having 12 to 21 carbon atoms, the structure and properties thereof are described in Empol Dimer-Polybasic Acids Techn. Bull. 11; Henkel 一 Emery / Gouda ( NL)), and may preferably be dodecane diacid having 12 carbon atoms or octadecane diacid having 18 carbon atoms.

In particular, amorphous (amorphous) polyamides prepared by polycondensation of dodecanediic acid having 12 carbon atoms as the aliphatic dicarboxylic acid and bis (4-aminocyclonucleosil) methane (PACM) as the alicyclic diamine, and the Amorphous (amorphous) polyamides prepared by polycondensation of octadecane diacid having 18 carbon atoms as aliphatic dicarboxylic acid and bis (3-methyl-4-aminocyclonuclear) methane (MACM) as alicyclic diamines It is desirable in terms of physical properties required in dental materials, such as shrinkage, laminar strength, flexural strength, and surface finish characteristics.

The aliphatic dicarboxylic acid is the alicyclic diamine and the aliphatic 30 to 70 moles 9¾ based on the total mole sum of the dicarboxylic acids.

In addition, the aliphatic dicarboxylic acid may include 25 to 45 mol% of aromatic dicarboxylic acid based on the total number of moles of the alicyclic diamine and the aliphatic dicarboxylic acid, wherein the aromatic dicarboxylic acid is isophthalic acid. , Terephthalic acid, naphthalene-dicarboxylic acid, t-butylisophthalic acid, 1,1,3-trimethyl-3-phenylindan-4 ', 5-dicarboxylic acid, mixtures thereof, preferably isophthalic acid, terephthalic acid Or mixtures thereof.

In addition, the amorphous (amorphous) polyamide, which is the base resin, may include, in addition to the above-mentioned monomers, general monomers used in the production of polyamides, monocarboxylic acids such as benzoic acid, acetic acid and propinic acid; Monoamines such as stearylamine; Dicarboxylic acid; Diamine; Triacetone diamine, isophthalic acid-ditriacetone diamine, derivatives thereof; m-xyllidenediamine, P-xylidenediamine; Amino acids having 4 to 14 carbon atoms, lactams, and the like.

The material forming the denture base or the like may contain other additives in addition to the base resin. In the case of the additive, it is preferable to exclude the crosslinking agent and the photochromic colorant. Examples of such additives include stabilizers such as thermal stabilizers (eg IRGANOX 1098 or IRGANOX 1010), UV stabilizers (eg TINUVIN 312 or 770, or NYLOSTAB SEED), flame retardants, antistatic agents agents, softeners, impact modifiers, reinforcing materials, layering materials, preferably nanoscale more preferably fillers having a size of 100 nm or less, optical brighters (E.g. TINOPAL DMSX or UNIVEX OB), lubricants or inclusion reducers (e.g. VERSAPOL), polycondensation catalysts (e.g. H ₃ P0 ₂ , H ₃ P0 ₃ , H ₃ P0 ₄ ) defoamers (eg silicone or derivatives thereof) or combinations thereof. Each of the additives may be added in an amount of 0.005 to 0.5% by weight based on the total weight of the denture and the like.

The amorphous (amorphous) polyamide not only has a low shrinkage rate but also has a specific gravity compared to polymethyl methacrylate (PMM A), polycarbonate (PC), polyethylene terephthalate (PET), and the like used in conventional denture base materials. As 1, the finished product is lighter than PMMA 1.19, PC 1.20, and PET 1.38, so that the patient can wear it comfortably.

In addition, the amorphous (amorphous) polyamide may be used in the PMMA, PC, PET and the like. Compared to the mechanical properties such as fatigue strength and impact resistance, dental articles such as dentures having an excellent aesthetic appearance such as amorphous (amorphous), high transparency and easy coloration can be manufactured.

On the other hand, conventional crystalline polymers require an average of two hours of processing time to produce a finished product, such as the occurrence of fluffs in the surface polishing (polishing) process, which is an essential process in the production of denture base, but the amorphous (amorphous) poly In the case of amide, the polishing process can be completed in only 30 minutes, which is easy to manufacture and low in manufacturing cost. The base resin amorphous (amorphous) polyamide and denture base material comprising the same are known in the art in a known stirrable pressure autoclave sterilizer equipped with a receiving vessel and a reaction vessel. It can be manufactured by a known method.

Specifically, deionized water is added to the receiving container, and monomers such as the alicyclic diamine and aliphatic dicarboxylic acid and the other additives are added, and the resulting solution is deactivated several times with nitrogen and adjusted pressure while stirring. Heat to 180-230 ^° C. under adjusting pressure to obtain a homogeneous solution. Thereafter, the obtained solution was injected through the sieve into the reaction vessel, heated to a desired reaction reaction temperature of 270 to 3K C at a pressure of up to 30 bar, and maintained under pressure heating for 2 to 4 hours, and then the pressure was Reduce to atmospheric pressure within 1 to 2 hours. Next, after maintaining at atmospheric pressure for 0.5 to 1 hour at a silver temperature of 270 to 340 ° C., the melt of the polymer is released in the form of strands, and is stirred at 15 to 8 C C in a water bath to obtain a solid powder form. The solid powder is dried under hydrogen and ^at a temperature of 80-120 ^° C. for 12 hours until it has a moisture content of less than 0.06% by weight. Thereby, the material which comprises the amorphous (amorphous) polyamide which is the said base resin, and the denture base containing the same can be manufactured.

Dental articles such as dentures made from the material forming the denture base and the like can be produced by a known method. For example, the solid powder-like material forming the denture base is heated and melted, and then injected into the inside of a plaster flask, which is modeled after the patient's oral structure, and then angled / cured or cured after grinding. After forming a shape matching the oral structure of the denture base and the like can be manufactured by processing such as polishing, the final dentures can be manufactured by fixing the teeth for dentures and the like to the prepared denture base using an adhesive or the like. have. EXAMPLE

Hereinafter, preferred embodiments of the present invention will be described in detail. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosure may be made thorough and complete, and the spirit of the present invention may be fully conveyed to those skilled in the art.

1, Production Example 1) Production Example 1

Into a receiving flask of a pressure autoclave of 130, 19.24 kg of dehydrated water was injected, 0.10 kg of bis (4-aminocyclonuclear) methane (PACM) as alicyclic diamine, 39.81 kg of dodecaneic acid as aliphatic dicarboxylic acid, 0.10 benzoic acid 15.5 kg kg, H ₃ P0 ₂ were added.

After 10 inactivations, it was heated to 23 C and the homogeneous solution was injected through the sieve into the reaction vessel. Then it was heated to 295 ° C. with stirring, maintained at 20 bar for 4 hours, decompressed to atmospheric pressure within 1.5 hours and degassed for 40 minutes. The polymer melt was released and cooled in a water bath at 65 ° C. to obtain a solid powder. The powder was dried under hydrogen and at 100 ° C. for 24 hours so that the moisture content was less than 0.06% by weight to obtain the final product, the denture base composition (Example 1) in the form of a solid powder, which was hot press Using a specimen of a constant thickness was prepared.

2) Preparation Example 2

Bis (3-methyl-4-aminocyclonuclear) methane (MACM) as alicyclic diamine

0.10 kg and 39.81 kg of octadecane diacid as aliphatic dicarboxylic acid were used in the same manner as in Example 1.

3) Preparation Examples of Comparative Examples 1 to 3

Comparative Examples 1 to 3 produced specimens of a constant thickness from a resin composition as described below using a hot press.

Comparative Example 1: Polymethyl ^; Methacrylate composition (manufacturer: LGM); Product name ： HP202)

Comparative Example 2: Polycarbonate composition (Manufacturer: LG Chemical; Product Name: LUPOY PC 1201-22)

Comparative Example 3: Polyethylene terephthalate composition (Manufacturer: Honam Petrochemical; Product Name: TB-180)

2. Evaluation of Physical Properties The specimens prepared from the denture base compositions of Examples and Comparative Examples were respectively determined for tensile strength, tensile elongation, breaking strength, elongation at break, flexural strength, flexural elasticity, laminar strength, and shrinkage according to the specifications shown in Table 1 below. did.

Table 1

As shown in Table 1, the compositions of Comparative Examples 1 (poly methyl methacrylate, PMMA) and 2 (polycarbonate, PC) have good strength,. Due to this, the flexural modulus is 3100 MPa and 2200 MPa, respectively, According to Example 1, it was confirmed that the flexibility is very high compared to the flexural modulus of 1550 MPa of the composition. Compositions used as materials such as denture bases that are repeatedly detached to teeth and / or gums should have good flexibility so that consumers can easily detach dentures and the like, so that the compositions according to Comparative Examples 1 and 2 having low flexibility are used as denture base compositions. It is considered inappropriate.

In addition, the composition according to Comparative Example 3 (polyethylene terephthalate, PET) has a shrinkage of 1.6% and the composition according to Example 2, which is a shrinkage ratio of the composition according to Example 1, which is a denture base composition according to the present invention. The contraction was found to be very high compared to 0.76%. Compositions used as materials such as denture bases that are repeatedly detached to teeth and / or gums should have a low shrinkage and correspondence between the denture bases and the patient's oral structure when a dental article comprising denture bases manufactured from the composition is used. Since it can be maintained for a long time, it is judged that the composition according to Comparative Example 3, which has a high shrinkage rate and can cause mismatch with the oral structure of the patient, is inappropriate as a denture base composition.

Furthermore, Comparative Example 1 (polymethyl methacrylate, PMMA) and

Each composition according to 3 (polyethylene terephthalate, PET) has a lamellar strength of 1.6 kJ / m ² and 2.5 kJ / m ² , respectively, which is 11 kJ, which is the lamellar strength of the composition according to Example 1, which is a denture base composition according to the present invention. / m ^s and the impact strength of the composition according to Example 2 was found to be very low compared to 10.5 kJ / n. The composition and the denture base round prepared therefrom may if the cheunggyeok strength low could break off the top of careless consumer, to the substantial costs for ^repair, because the composition is of value commercially according to a low impact strength compared to Examples 1 and 3 It is judged to be inappropriate as a composition.

On the other hand, the compositions according to Examples 1 and 2, which are denture base compositions according to the present invention, are not only suitable for use as the denture base compositions, but both of the strength and flexibility of the upper layers of the denture bases are different, and the denture base and the denture bases prepared therefrom have low shrinkage. Inconsistent with the oral structure of the patient can be avoided, and since the stratification strength is high, the denture base produced therefrom and the effect of prolonging the life of the denture including the same can be extended. It was confirmed to be a material.

On the other hand, after preparing a sheet of 0.40mm thickness from the compositions of Examples 1 and 2, and Comparative Examples 1 to 3 are generally applied using a UV UV visible spectro-photometer (manufacturer: McCarthys, Korea) As a result of measuring the light transmittance at 660 nm, the transmittance measurement wavelength, as shown in Table 1, Since the denture base composition according to the invention has excellent transparency, it was confirmed that dental products such as dentures having a transparent aesthetic appearance can be produced therefrom.

3. Workability Evaluation By grinding the solid obtained by melting / curing each of the composition comprising amorphous (amorphous) polyamide according to Examples 1 and 2 and crystalline nylon 12 (manufacturer: Valplast) according to Comparative Example 4, After processing to the denture shape, in the process of performing the surface treatment through polishing, each photomicrograph was taken 1 minute after the start of the grinding process and 1 minute after the start of the polishing process.

Specifically, FIGS. La and lb are partial surface micrographs of denture bases prepared from amorphous (amorphous) polyamides according to Examples 1 and 2 one minute after the start of the grinding process, respectively, with no fluff or the like found. While minute surface scratches are observed, FIG. 2 is a partial surface micrograph of denture base made from crystalline nylon 12 (manufacturer: Valplast) according to Comparative Example 4 one minute after the start of the grinding process, with a large number of fluffs and scratches Found.

3A and 3B show partial surface micrographs of denture bases prepared from amorphous (amorphous) polyamides according to Examples 1 and 2 one minute after the start of the polishing process, respectively, in which all scratches generated during the grinding process disappeared. On the other hand, FIG. 4 shows a partial surface micrograph of denture base prepared from crystalline nylon 12 (manufacturer: Valplast) according to Comparative Example 4 1 minute after the start of the polishing process, in which the scratches generated during the grinding process did not disappear. Even a small fluff was found.

As described above, denture bases made from amorphous (amorphous) polyamides according to the present invention have a processability compared to denture bases made from conventional crystalline nylon 12, such as surface fluff and scratch holes are not generated or minimized during grinding and polishing. It has been proved to be excellent, and this is expected to significantly reduce the processing time of the grinding, polishing, etc., which is expected to lead to a reduction in manufacturing cost.

Although the present specification has been described with reference to preferred embodiments of the invention, those skilled in the art may variously modify and change the invention without departing from the spirit and scope of the invention as set forth in the claims set forth below. Will be able to carry out. Therefore, it should be seen that all modifications included in the technical scope of the present invention are basically included in the scope of the claims of the present invention.

Claims

[Range of request]

[Claim 1]

A dental article having a detachable portion detachable to a tooth and / or gum of a human or animal,

The desorption part is a dental article, characterized in that produced by a composition comprising an amorphous polyamide formed by polycondensation of aliphatic dicarboxylic acid and alicyclic diamine as a base resin.

[Claim 2]

The method of claim 1,

And wherein said aliphatic dicarboxylic acid is dodecane diacid and said alicyclic diamine is bis (4-aminocyclonuclear chamber) methane. ^■

[Claim 3]

The method of claim 1,

The aliphatic dicarboxylic acid is a dicarboxylic acid having 17 to 18 carbon atoms, and the alicyclic diamine is dialkyl-4,4'-diamino-dicyclonucleosilalkane, bis (amino-cyclonuclear) alkane, or a combination thereof. Dental supplies, characterized in that the water.

[Claim 4]

The method of claim 3,

And said aliphatic dicarboxylic acid is octadecane diacid and said alicyclic diamine is bis (3-metha-4-aminocyclonucleus) methane.

[Claim 5]

The method according to any one of claims 1 to 4,

Based on the total moles of the aliphatic dicarboxylic acid and the alicyclic diamine, the content of the aliphatic dicarboxylic acid is 30 to 70 moles 9¾, and the content of the alicyclic diamine is 70 to 30 mole%. , Dental supplies.

[Claim 6]

The method of claim 5,

And wherein said aliphatic dicarboxylic acid comprises 25 to 45 mole% of aromatic dicarboxylic acid, based on the total moles of said aliphatic dicarboxylic acid and said alicyclic diamine.

[Claim 7]

The method of claim 6, The aromatic dicarboxylic acid is isophthalic acid, terephthalic acid, naphthalenedicarboxylic acid t-butyl isophthalic acid, 1, 1, 3-trimethyl-3-phenyl indan-4 ', 5- dicarboxylic acid, and their A dental article, characterized in that it is selected from the group consisting of complexes.

[Claim 8]

The method according to any one of claims 1 to 4,

The composition is an additive selected from the group consisting of stabilizers, flame retardants, antistatic agents, softeners, interlayer materials, reinforcing materials, fillers, fluorescent brighteners, lubricants, incorporation reducing agents, polycondensation catalysts, antifoaming agents, and combinations thereof. Further comprising, wherein each of the additives, characterized in that contained in 0.005 to 0.5 weight <¾ based on the total weight of the composition, dental supplies.

[Claim 9]

The method according to any one of claims 1 to 4,

Dentures, topical dentures, mouthpieces, splints or night guards.

[Claim 10]

According to claim 9,

Dental goods characterized in that the dentures.