WO2018159682A1 - 光重合器及び歯科補綴物作製キット - Google Patents
光重合器及び歯科補綴物作製キット Download PDFInfo
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- WO2018159682A1 WO2018159682A1 PCT/JP2018/007512 JP2018007512W WO2018159682A1 WO 2018159682 A1 WO2018159682 A1 WO 2018159682A1 JP 2018007512 W JP2018007512 W JP 2018007512W WO 2018159682 A1 WO2018159682 A1 WO 2018159682A1
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- photopolymerizer
- polymerization
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/12—Tools for fastening artificial teeth; Holders, clamps, or stands for artificial teeth
- A61C13/14—Vulcanising devices for artificial teeth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/003—Apparatus for curing resins by radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/70—Tooth crowns; Making thereof
- A61C5/77—Methods or devices for making crowns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C2202/00—Packaging for dental appliances
- A61C2202/01—Packaging for light-curable material
Definitions
- the present invention relates to a photopolymerizer and a dental prosthesis preparation kit. Specifically, the present invention relates to a photopolymerizer used for advancing a photopolymerization reaction of a preform made of an uncured photocurable material, and a dental prosthesis preparation kit including the photopolymerizer.
- a preform is placed in a polymerization vessel, and a light source is placed in the polymerization vessel from a light source.
- Photopolymerizers that emit light are known.
- Patent Document 1 states that “a container in which a dental prosthesis can be installed and taken out inside, and a light guide unit that penetrates the wall of the container so as to allow light to pass therethrough and communicates inside and outside of the container.
- a “photopolymerization container” is disclosed.
- reaction time from the start of photopolymerization to the completion of curing of the molded body is preferably a short time. In order to shorten the reaction time, it is effective to increase the temperature in the reaction system to improve the reaction rate.
- Patent Document 2 states that “a technical photopolymerizer for curing a dental prosthesis with an irradiation light source, comprising heating means for heating the irradiation light source and the dental prosthesis,” A “polymerizer” is disclosed.
- Patent Document 1-2 does not disclose anything about the use of heat generated from the light source.
- the energy conversion efficiency from electricity to light is about 10 to 15%, and the remaining 80 to 85% is converted to heat or the like, and the heat is dissipated outside the photopolymerizer without being used. Yes.
- Patent Document 3 discloses a “technical photopolymerizer using a light-emitting diode as an irradiation light source, wherein a mounting plate having a heat radiation function is used as a mounting plate on which the light-emitting diode is disposed”. It is disclosed.
- Patent Document 3 discloses that heat generated from a light source is dissipated outside the photopolymerization device, and nothing is mentioned about the use of this heat.
- An object of the present invention is to provide a photopolymerizer having a relatively simple structure and capable of supplying light energy necessary for a photopolymerization reaction and supplying thermal energy for promoting the photopolymerization reaction. That is.
- the other subject of this invention is providing the preparation kit of the dental prosthesis which consists of this photopolymerizer and a photocurable material.
- LED Light Emitting Diode
- a polymerization vessel comprising a main body that is thermally connected to the polymerization vessel, comprising a light source that irradiates the interior of the polymerization vessel; and
- a photopolymerization device comprising: A photopolymerizer configured to conduct heat generated from the light source to the polymerization container side.
- This photopolymerizer is configured to include a polymerization container and a main body including a light source, and heat generated from the light source during light irradiation is suppressed from being dissipated from the main body, and is conducted into the polymerization container. It is configured as follows.
- This photopolymerizer suppresses heat generated from the light source during light irradiation from being radiated from the main body by configuring the outer surface of the main body with a material having low thermal conductivity.
- This photopolymerizer conducts heat generated from the light source during light irradiation to the polymerization container side by constituting the polymerization container with a material having high thermal conductivity.
- This photopolymerizer has a high reflectance on the inner surface of the polymerization vessel in order to allow the photopolymerization reaction to proceed efficiently.
- This photopolymerizer uses an LED as a light source having a long life and high economic efficiency.
- the light source and the polymerization vessel are thermally connected via a heat conducting member in order to conduct heat generated by the light source into the polymerization vessel.
- This photopolymerizer has a heat conducting member with high thermal conductivity in order to conduct heat generated by the light source more efficiently into the polymerization vessel.
- a dental prosthesis preparation kit comprising:
- This dental prosthesis preparation kit is composed of a photocurable material and a photopolymerizer used for curing the photocurable material.
- the photopolymerizer of the present invention raises the temperature in the polymerization vessel using heat generated by a light source, it can accelerate the photopolymerization reaction. Therefore, the time required for producing the target molded product can be shortened.
- FIG. 1 is an explanatory diagram showing a configuration example of a photopolymerizer according to the present invention.
- FIG. 2 is an explanatory view showing another configuration example of the photopolymerizer of the present invention.
- FIG. 3 is an explanatory view showing still another configuration example of the photopolymerizer of the present invention.
- FIG. 4 is an explanatory view showing still another configuration example of the photopolymerizer of the present invention.
- FIG. 5 is an explanatory view showing still another configuration example of the photopolymerizer of the present invention.
- FIG. 1 is an explanatory view showing an example of the configuration of the photopolymerizer of the present invention.
- 100 is a photopolymerizer
- 10 is a main body
- 20 is a polymerization vessel.
- a light source 11 is disposed inside a housing 12 constituting the main body 10.
- the casing 12 has a bottomed cylindrical shape, and one end (the lower end in FIG. 1) of the cylinder is open, and is configured to irradiate light into the polymerization vessel 20 from the opening.
- the outer surface of the housing 12 is denoted by reference numeral 13.
- Reference numeral 15 denotes a light-transmitting plate made of a light-transmitting material, and is disposed so as to cover the opening of the housing 12.
- polymerization container 20 has a bottomed cylindrical shape which one end opened, and the space for accommodating a dental prosthesis is formed in the inside.
- the main body 10 is placed on the opening side of the polymerization vessel 20 and is configured to irradiate the inside of the polymerization vessel 20 with light.
- the inner surface of the polymerization vessel 20 is represented by reference numeral 21.
- the material constituting at least the outer surface 13 of the housing 12 is a material having a lower thermal conductivity than the material constituting the polymerization vessel 20.
- the material constituting the outer side surface 13 preferably has a thickness of 10% or more, more preferably 50% or more, and 100% with respect to the thickness of the material constituting the housing 12. More preferably.
- the entire material constituting the housing 12 is a material having a lower thermal conductivity than the material constituting the polymerization container 20.
- the material constituting at least the outer surface 13 of the housing 12 is preferably a material having a thermal conductivity at 20 ° C. of 10 (W / m ⁇ K) or less, and a material of 5 (W / m ⁇ K) or less. It is more preferable that the material is 1 (W / m ⁇ K) or less.
- the thermal conductivity exceeds 10 (W / m ⁇ K)
- a large amount of heat is radiated from the outer surface 13 of the housing 12, and it is difficult to raise the temperature in the polymerization vessel 20.
- the lower limit of thermal conductivity is not particularly limited, it is generally 0.01 (W / m ⁇ K).
- Examples of such materials include various resin materials, inorganic materials such as glass, glass fiber, concrete, alumina, zirconia, glass fiber reinforced plastic, wood, paper, and the like. Among these, it is preferable to use a resin material because industrial mass production is easy.
- the resin material include polypropylene, polyvinyl chloride, polycarbonate, polyethylene terephthalate, acrylonitrile-butadiene-styrene copolymer resin, polybutylene terephthalate, polyoxymethylene, polyurethane, polyamide, polymethyl methacrylate, and polyethylene.
- the material constituting the polymerization vessel 20 is preferably a material having a thermal conductivity at 20 ° C. of 50 (W / m ⁇ K) or more, more preferably 100 (W / m ⁇ K) or more.
- a material of 200 (W / m ⁇ K) or more is particularly preferable.
- the thermal conductivity is less than 50 (W / m ⁇ K)
- the heat generated from the light source 11 is not easily conducted to the polymerization vessel 20 and the temperature inside the polymerization vessel 20 is difficult to increase.
- the upper limit of thermal conductivity is not particularly limited, it is generally 2000 (W / m ⁇ K).
- the polymerization container 20 may be configured by coating its outer surface with a material having low thermal conductivity. As such a material, the same material as that constituting the side surface of the housing 12 can be used. Further, a paint having a low thermal conductivity may be applied. Further, the container made of a material having a low thermal conductivity may be arranged, covered, painted, plated, or the like with a material having a high thermal conductivity.
- the polymerization container 20 preferably has a high light reflectivity on the inner surface 21 in order to uniformly and efficiently irradiate the molded body with light irradiated from the light source 11.
- the inner surface 21 is subjected to white coating or metal plating, or when the material constituting the polymerization vessel is a metal material, the inner surface 21 is mirror-polished. It is preferable to apply.
- the visible light reflectance on the inner surface of the polymerization vessel 20 is preferably 60% or more, more preferably 70% or more, and particularly preferably 80% or more.
- the inner surface 21 of the polymerization vessel 20 may be made of a material that can convert light energy irradiated from the light source 11 into heat energy.
- a material that can convert light energy irradiated from the light source 11 into heat energy examples include a material in which polydopamine is wound around an organic nanotube in a coil shape. It is also preferable that a part of the inner surface of the polymerization vessel 20 is made of a light absorbing material.
- the surface area of the inner surface 21 (including the bottom surface) of the polymerization vessel 20 is preferably 100 cm 2 or more, and more preferably 150 cm 2 or more. By being 100 cm ⁇ 2 > or more, the heat generated from the light source 11 is radiated into the polymerization container 20, and the temperature in the polymerization container 20 can be sufficiently increased.
- the upper limit of the surface area of the inner surface 21 of the polymerization vessel 20 is not particularly limited, it is generally 1000 cm 2 or less.
- the amount of heat released to the inside of the polymerization vessel 20 is preferably configured to be larger than the amount of heat released to the outside, more preferably 1.1 times or more, and 1.5 times or more. It is more preferable.
- heat generated from the light source 11 is intensively dissipated inside the polymerization container 20, and the temperature inside the polymerization container 20 is raised, and heat dissipation from the outside of the polymerization container 20 can be suppressed.
- a method of coating the outside of the polymerization vessel 20 with a material having low thermal conductivity, or by providing irregularities on the inner surface 21 of the polymerization vessel 20 The method of making a surface area larger than the surface area of the outer surface is illustrated.
- the internal volume of the polymerization vessel 20 is preferably 3000 cm 3 or less, and more preferably 300 cm 3 or less. By being 3000 cm ⁇ 3 > or less, the temperature in the polymerization vessel 20 can be sufficiently increased. When it exceeds 3000 cm 3 , the internal volume of the polymerization vessel 20 is too large and it is difficult to raise the temperature inside.
- the lower limit value of the internal volume of the polymerization container 20 is not particularly limited, but is preferably 100 cm 3 or more in order to accommodate various dental prostheses.
- the polymerization vessel 20 is preferably configured to increase its internal temperature by 5 ° C. or more when irradiated with light from the light source 11 for 3 minutes, and is configured to increase 7 ° C. or more. Is more preferable, and it is more preferable that the temperature is raised by 7 to 20 ° C.
- Such a configuration can be achieved by appropriately adjusting the type and number of the light sources 11, the material and inner volume of the housing 12, the material and inner volume of the polymerization container 20, and the surface area of the inner surface 21.
- the difference in thermal conductivity between the material constituting the outer surface 13 of the housing 12 and the material constituting the polymerization vessel 20 is preferably 50 (W / m ⁇ K) or more, and 100 (W / m ⁇ K) or more is more preferable, and 200 (W / m ⁇ K) or more is particularly preferable.
- the difference in thermal conductivity is 50 (W / m ⁇ K) or more, the heat generated from the light source 11 can be easily conducted to the polymerization vessel 20 side.
- the heat conductivity of the material which comprises the polymerization container 20 here is the heat conductivity of the material which has the highest heat conductivity among the materials which comprise the polymerization container 20.
- the outer surface is a container configured by coating with a material having low thermal conductivity, or within the container configured with a material having low thermal conductivity, placement, coating, painting,
- the polymerization container 20 is composed of a plurality of materials as in the case of a container configured by plating or the like, it means the thermal conductivity of the material having the highest thermal conductivity.
- a conventionally known light source can be used as the light source 11. Although it does not specifically limit, an incandescent lamp, a fluorescent lamp, LED, a high-intensity discharge lamp, and a solar lamp are illustrated. In particular, it is preferable to use an LED having a low price and a long lifetime.
- the light source 11 preferably has a cooling member for releasing heat generated from the light source 11.
- this photopolymerizer 100 After a preformed body made of an uncured photocurable material is accommodated in the polymerization vessel 20, the main body is placed on the polymerization vessel 20 and irradiated with light from the light source 11. Thereby, the light energy required for the photopolymerization reaction of the photocurable material is supplied to the preform in the polymerization container 20. Furthermore, since the heat generated from the light source 11 is conducted to the polymerization vessel 20, the temperature in the polymerization vessel 20 rises and the photopolymerization reaction is promoted.
- the light-transmitting plate 15 is not particularly limited, and examples thereof include a plate-like object made of glass or plastic, a lens; a net-like object made of plastic, metal or the like.
- the translucent plate 15 does not necessarily need to airtightly separate the light source 11 side and the polymerization container 20 side.
- a through hole or a slit may be formed in the thickness direction of the plate-like object or lens.
- FIG. 2 is an explanatory view showing another configuration example of the photopolymerizer of the present invention.
- the same components as those in FIG. 1 are denoted by the same reference numerals and description thereof is omitted.
- reference numeral 17 denotes a heat conducting member, one end of which is joined to the light source 11, and the other end is extended to the opening side of the housing 12, that is, the polymerization container 20 side.
- the heat conducting member 17 has a role of conducting heat generated from the light source 11 to the polymerization container 20 side.
- the thermal conductivity of the material constituting the housing 12 and the polymerization container 20 is not limited, and the housing 12 and the polymerization container 20 can be composed of any material.
- the heat conducting member 17 does not need to be physically joined to the light source 11 and the polymerization container 20, and may be thermally connected. In order to efficiently conduct the heat generated from the light source 11, it is preferable that the heat conducting member 17 is physically joined to at least the light source 11.
- the heat conducting member 17 is physically joined to the light source 11, if the light source 11 has a cooling member, it can be directly joined to the cooling member. Moreover, if the light source 11 does not have a cooling member, it can join to the board
- the heat conducting member 17 can be made of the same material as that described in the polymerization container.
- the shape of the heat conducting member 17 is not particularly limited, but can be configured in various shapes such as a linear shape, a rod shape, a hemispherical shape, and a tapered shape.
- the heat conducting member 17 may have a function as a reflecting plate by increasing the reflectance of the inner surface thereof.
- FIG. 3 is an explanatory view showing still another configuration example of the photopolymerizer of the present invention.
- the same components as those in FIG. 2 are denoted by the same reference numerals and description thereof is omitted.
- reference numeral 19 denotes a heat conducting member, one end of which is joined to the light source 11, and the other end is extended into the polymerization container 20 following the outer edge of the light transmitting plate 15.
- a through hole or a slit is formed in the light transmitting plate 15, and the heat conducting member 19 is passed through the through hole or the slit.
- a method of copying the heat conducting member 19 to the outer edge portion of the plate 15 is exemplified.
- the light source 11 and the polymerization vessel 20 can be physically connected by the heat conducting member 19, and the heat conducting property can be further increased.
- the heat generated from the light source 11 can be conducted into the polymerization vessel 20 more efficiently than the apparatus of FIG. 2.
- the size of the heat conducting member 19 extending in the polymerization vessel 20 is not particularly limited. As described above, when the light from the light source 11 is irradiated for 3 minutes, the internal temperature is increased by 5 ° C. or more. It is preferably configured, more preferably configured to increase by 7 ° C. or more, and further preferably configured to increase by 7 to 20 ° C.
- the translucent plate 15 may be configured to be detachable.
- the arrangement of the main body including the polymerization container and the light source is not particularly limited. As shown in FIGS.
- the polymerization vessel may be disposed at the lower portion and the main body portion may be disposed at the upper portion, or the main body portion may be disposed at the lower portion and the polymerization vessel may be disposed at the upper portion so as to irradiate light upward.
- the main body and the polymerization container are not limited to a cylindrical shape, and may have any shape as long as the effects of the present invention are not impaired.
- the main body and the polymerization container are not only divided into upper and lower parts, but may be configured such that the polymerization container 40 is accommodated in a drawer shape in the housing 22 of the main body 30 as shown in FIG. Moreover, as shown in FIG.
- polymerization container 60 of the main-body part 50 may be integrated.
- the housing 23 and the polymerization container 60 may be configured by different materials and integrated, or the inner surface 61 of the polymerization container 60 may be plated to change the thermal conductivity.
- the bottom of the polymerization container may be opened in order to put in and out the molded body, or as shown in FIG. You may provide the door 31 in a part of.
- Various sensors such as a temperature sensor and an illuminance sensor may be provided in the main body and the polymerization container to control the temperature and illuminance.
- a cooling member such as a heat sink may be attached to the substrate on which the light source is attached.
- the material for the heat sink is not particularly limited, and a known material such as aluminum can be used.
- a hole penetrating inward and outward may be provided in the main body housing for temperature control inside the main body.
- the temperature inside the main body may be controlled by attaching a fan inside the main body and blowing air heated to the polymerization container side or exhausting it outside.
- the dental prosthesis preparation kit of the present invention includes a photocurable material and the above-described photopolymerizer.
- a photocurable material a known photocurable material comprising (A) a radical polymerizable monomer and (B) a photopolymerization initiator described below can be used without particular limitation.
- radical polymerizable monomer As the radical polymerizable monomer blended in the present curable composition, a radical polymerizable monomer that can be used for dentistry can be used without particular limitation. As such a radical polymerizable monomer, a (meth) acrylic polymerizable monomer is generally used.
- Examples of typical (meth) acrylic polymerizable monomers include those shown in (I) to (IV) below.
- Methacrylates such as methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, hydroxyethyl methacrylate, tetrahydrofurfuryl methacrylate, acetoacetoxyethyl methacrylate, glycidyl methacrylate, and acrylates corresponding to these methacrylates;
- (II) Bifunctional monomer (i) Aromatic compound type 2,2-bis (methacryloyloxyphenyl) propane, 2,2-bis [4- (3-methacryloyloxy) -2-hydroxypropoxyphenyl Propane, 2,2-bis (4-methacryloyloxyphenyl) propane, 2,2-bis (4-methacryloyloxypolyethoxyphenyl) propane, 2,2-bis (4-methacryloyloxydiethoxyphenyl) propane), 2,2-bis (4-methacryloyloxytetraethoxyphenyl) propane, 2,2-bis (4-methacryloyloxypentaethoxyphenyl) propane, 2,2-bis (4-methacryloyloxydipropoxyphenyl) propane, 2 ( 4-Methacryloyloxydiethoxyphenyl) -2 (4- Tacryloyloxydiethoxyphenyl) propane, 2 (4-methacryloyloxydiethoxyphenyl) -2 (4-methacrylo
- Methacrylates such as trimethylolpropane trimethacrylate, trimethylolethane trimethacrylate, pentaerythritol trimethacrylate, trimethylolmethane trimethacrylate, and acrylates corresponding to these methacrylates.
- polymerizable monomers may be used alone or in combination of two or more.
- the above (meth) acrylic type is used for ease of polymerization, adjustment of viscosity, or adjustment of other physical properties. It is also possible to perform polymerization by mixing other polymerizable monomers other than the polymerizable monomer.
- Examples of these other polymerizable monomers include fumaric acid esters such as monomethyl fumarate, diethyl fumarate and diphenyl fumarate; Styrene or ⁇ -methylstyrene derivatives such as styrene, divinylbenzene, ⁇ -methylstyrene, ⁇ -methylstyrene; Allyl compounds such as diallyl terephthalate, diallyl phthalate, diallyl diglycol carbonate; Etc. These other polymerizable monomers may be used alone or in combination of two or more.
- photoinitiator As a photoinitiator, a well-known thing can be used without a restriction
- photopolymerization initiators may be used alone or in combination of two or more.
- ⁇ -diketones are preferred from the viewpoints of good polymerization activity and low harm to the living body.
- ⁇ -diketone is used, it is preferably used in combination with a tertiary amine compound.
- Tertiary amine compounds that can be used in combination with ⁇ -diketone include N, N-dimethylaniline, N, N-diethylaniline, N, N-di-n-butylaniline, N, N-dibenzylaniline.
- These polymerization initiators may be used alone or in combination of two or more.
- the blending amount of the radical polymerization initiator is not particularly limited as long as it is an amount capable of polymerizing the radical polymerizable monomer to cure the curable composition. What is necessary is just to select a well-known compounding quantity suitably according to the kind of monomer.
- the photopolymerization initiator (B) is 0.01 to 10 parts by mass, and 0.05 to 8 parts by mass with respect to 100 parts by mass of the (A) radical polymerizable monomer. The amount is preferably 0.1 to 6 parts by mass.
- the amount of the component constituting the polymerization initiator other than the compound is in the above range. It is preferable that
- the present curable composition can be used as a surface lubricant or an adhesive used for the purpose of providing lubricity on the surface of various resin-based dental materials, repairing teeth nail polish and discolored teeth, etc. Can be used for a wider range of applications.
- the filler known organic fillers and inorganic fillers can be used.
- the denture repair material, the denture base hard lining material, and the patient once during the course of treatment. It is preferably used as a temporary sealing material filled in the cavity, a temporary crown, and a material for producing a bridge for several days from the return of the treatment to the resumption of treatment.
- an inorganic filler it is suitably used as a dental restorative material such as a composite resin, hard resin, inlay, onlay, and crown.
- typical fillers that can be suitably used include polymethyl methacrylate, polyethyl methacrylate, methyl methacrylate-ethyl methacrylate copolymer, cross-linked polymethyl methacrylate, and cross-linking as organic fillers.
- polymer particles such as type polyethyl methacrylate, ethylene-vinyl acetate copolymer, styrene-butadiene copolymer, acrylonitrile-styrene copolymer, acrylonitrile-styrene-butadiene copolymer. These may be used alone or in combination of two or more.
- typical inorganic fillers include inorganic particles such as quartz, silica, alumina, silica titania, silica zirconia, lanthanum glass, barium glass, and strontium glass.
- examples of the cation-eluting filler include hydroxides such as calcium hydroxide and strontium hydroxide, and oxides such as zinc oxide, silicate glass, and fluoroaluminosilicate glass. These may be used alone or in combination of two or more.
- a granular organic-inorganic composite filler obtained by adding a polymerizable monomer to these inorganic fillers in advance to form a paste, polymerizing, and pulverizing may be used.
- the particle size of these fillers is not particularly limited, and fillers having an average particle size of 0.01 to 100 ⁇ m, which are generally used as dental materials, can be appropriately used depending on the purpose. Further, the refractive index of the filler is not particularly limited, and those in the range of 1.4 to 1.7 which a general dental filler has can be used without limitation.
- the surface treatment method may be performed by a known method.
- silane coupling agent examples include methyltrimethoxysilane, methyltriethoxysilane, methyltrichlorosilane, dimethyldichlorosilane, trimethylchlorosilane, vinyltrichlorosilane, vinyltriethoxysilane, Vinyltris ( ⁇ -methoxyethoxy) silane, ⁇ -methacryloyloxypropyltrimethoxysilane, ⁇ -chloropropyltrimethoxysilane, ⁇ -glycidoxypropyltrimethoxysilane, hexamethyldisilazane and the like are preferably used.
- the proportion of these fillers may be appropriately determined in accordance with the purpose of use, taking into account the viscosity (operability) when mixed with the radically polymerizable monomer (A) and the mechanical properties of the cured product. However, generally, it is 50 to 1500 parts by weight, preferably 70 to 1000 parts by weight, based on 100 parts by weight of the (A) radical polymerizable monomer.
- optional components such as the above (A) radical polymerizable monomer, (B) photopolymerization initiator, and (C) filler blended as necessary are uniform during use. Is mixed and cured.
- the term “uniform” refers not only to a state where all the components are dissolved alternately, but also to a state in which an emulsion is formed or an insoluble component such as a filler is dispersed. The uniformity is good.
- This curable composition is usually used at 4 to 60 ° C.
- the curing time is usually 1 to 30 minutes for the chemical polymerization type and 3 to 120 seconds for the photopolymerization type.
- the dental curable composition is cured in a state where it is opened in an atmosphere containing oxygen.
- the dental curable composition may be polymerized by applying an air barrier material, or the dental curable composition may be immersed in water for polymerization.
- A The aspect which mixes and uses the liquid material containing a radically polymerizable monomer just before use is illustrated. At least one of the powder material and the liquid material contains (B) a photopolymerization initiator. The powder material preferably contains (C) a filler. The inside of the package is preferably replaced with a vacuum or an inert gas.
- Such a curable composition may be produced according to a known method and is not particularly limited.
- a heating polymerization catalyst such as an azo compound or a peroxide may be added in order to increase the polymerization activity due to heat.
- coloring materials such as pigments and fluorescent pigments may be blended in order to match the color tone of teeth and gums, or an ultraviolet absorber may be added to prevent discoloration against ultraviolet rays.
- blend a polymerization inhibitor in order to improve storage stability, it is also preferable to mix
- the curable composition can be used not only for dental use such as a denture base hard lining material but also for general industry.
- Organic filler PEMA; Polyethyl methacrylate (average particle size 30 ⁇ m) Polymerization initiator: CQ; Camphorquinone Polymerizable monomer: ND; 1,9-nonamethylenediol dimethacrylate Polymerization promoter: DMBE; Ethyl dimethylbenzoate
- Example 1 The photopolymerizer shown in FIG. 1 was constructed. Polybutylene terephthalate (thermal conductivity: 0.22 W / m ⁇ K) was used for the casing of the main body. As the light source, ten 1.1 W high power LEDs (white light) having an aluminum heat dissipation substrate were used. As the light-transmitting plate, glass having a thickness of 1.7 mm (thermal conductivity: 0.55 W / m ⁇ K) was used. As the polymerization container, an aluminum container (thermal conductivity: 237 W / m ⁇ K) whose inner surface was painted white was used (reflectance: 70%). The power source used was a 3000 mAh, 3.7 V lithium ion battery.
- the power source used was a 3000 mAh, 3.7 V lithium ion battery.
- the temperature in the polymerization container after light irradiation for 3 minutes was measured.
- the temperature at the bottom of the polymerization vessel rose from 20 ° C to 25 ° C.
- the Knoop hardness of the photocurable material cured using this photopolymerizer was measured and found to be 7.2.
- Example 2 The photopolymerizer shown in FIG. 3 was constructed. Polybutylene terephthalate was used for the casing of the main body.
- As the light source ten 1.1 W high power LEDs (white light) having an aluminum heat dissipation substrate were used. One end of an aluminum heat conducting member was connected to the aluminum heat dissipation substrate, and the other end was disposed in the polymerization vessel.
- As the light-transmitting plate glass having a thickness of 1.7 mm was used.
- As the polymerization container an aluminum container whose inner surface was painted white (reflectance: 70%) was used.
- the power source used was a 3000 mAh, 3.7 V lithium ion battery.
- Example 3 The photopolymerizer shown in FIG. 3 was constructed. Polybutylene terephthalate was used for the casing of the main body. As the light source, ten 1.1 W high power LEDs (white light) having an aluminum heat dissipation substrate were used. One end of an aluminum heat conducting member was connected to the aluminum heat dissipation substrate, and the other end was disposed in the polymerization vessel. The volume of the heat conducting member disposed inside the polymerization vessel was 2763 mm 3 (thickness 1 mm ⁇ depth 10 mm ⁇ diameter 88 mm (circumference 276.3 mm)). As the light-transmitting plate, glass having a thickness of 1.7 mm was used.
- the polymerization container a polybutylene terephthalate container whose inner surface was mirror-finished by aluminum plating was used (reflectance 88%).
- the power source used was a 3000 mAh, 3.7 V lithium ion battery.
- the temperature in the polymerization container after light irradiation for 3 minutes was measured.
- the temperature at the bottom of the polymerization vessel rose from 20 ° C to 28 ° C. It was 7.8 as a result of measuring the Knoop hardness of the photocurable material hardened
- Example 4 A photopolymerizer was constructed in the same manner as in Example 3 except that a 1 W blue LED (peak wavelength: 470 nm) was used as the LED light source. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 28 ° C. As a result of measuring the Knoop hardness of the photocurable material cured using this photopolymerizer, it was 9.2.
- Example 5 The photopolymerizer shown in FIG. 1 was constructed. Polybutylene terephthalate was used for the casing of the main body. As the light source, ten 5W blue LEDs (peak wavelength: 470 nm) having an aluminum heat dissipation substrate were used. As the light-transmitting plate, glass having a thickness of 1.7 mm was used. As the polymerization container, a polybutylene terephthalate container whose inner surface was mirror-finished by aluminum plating (thermal conductivity: 237 W / m ⁇ K) was used (reflectance 88%). The power supply was a switching power supply and was used with a setting of 1A, 31V.
- Example 6 A photopolymerizer was constructed in the same manner as in Example 1 except that acrylonitrile-butadiene-styrene copolymer resin (thermal conductivity: 0.33 W / m ⁇ K) was used for the casing of the main body. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 25 ° C. The Knoop hardness of the photocurable material cured using this photopolymerizer was measured and found to be 7.2.
- acrylonitrile-butadiene-styrene copolymer resin thermal conductivity: 0.33 W / m ⁇ K
- Example 7 A photopolymerizer was constructed in the same manner as in Example 1 except that polypropylene (thermal conductivity: 0.12 W / m ⁇ K) was used for the casing of the main body. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 25 ° C. As a result of measuring the Knoop hardness of the photocurable material cured using this photopolymerizer, it was 7.3.
- Example 8 A photopolymerizer was constructed in the same manner as in Example 1 except that polycarbonate (thermal conductivity: 0.19 W / m ⁇ K) was used for the casing of the main body. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 25 ° C. The Knoop hardness of the photocurable material cured using this photopolymerizer was measured and found to be 7.2.
- polycarbonate thermal conductivity: 0.19 W / m ⁇ K
- Example 9 A photopolymerizer was constructed in the same manner as in Example 1 except that soda glass (thermal conductivity: 0.74 W / m ⁇ K) was used for the casing of the main body. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 25 ° C. The Knoop hardness of the photocurable material cured using this photopolymerizer was measured and found to be 7.1.
- soda glass thermal conductivity: 0.74 W / m ⁇ K
- Example 10 A photopolymerizer was constructed in the same manner as in Example 1 except that high thermal conductive polycarbonate TPN2131 (manufactured by Mitsubishi Engineering Plastics Co., Ltd., thermal conductivity: 4.9 W / m ⁇ K) was used for the casing of the main body. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 24 ° C. The Knoop hardness of the photocurable material cured using this photopolymerizer was measured and found to be 7.0.
- Example 11 A photopolymerizer was constructed in the same manner as in Example 1 except that high thermal conductive polycarbonate TPN1122 (manufactured by Mitsubishi Engineering Plastics Co., Ltd., thermal conductivity: 8.8 W / m ⁇ K) was used for the main body casing. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 24 ° C. As a result of measuring the Knoop hardness of the photocurable material cured using this photopolymerizer, it was 6.8.
- Example 12 A photopolymerizer was constructed in the same manner as in Example 1 except that a brass container (thermal conductivity: 106 W / m ⁇ K, reflectance 70%) whose inner surface was painted white was used as the polymerization container. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 24 ° C. The Knoop hardness of the photocurable material cured using this photopolymerizer was measured and found to be 7.1.
- Example 13 Photopolymerization was performed in the same manner as in Example 1 except that a carbon steel (carbon content 0.5%) container (thermal conductivity: 54 W / m ⁇ K, reflectance 70%) coated with white on the inner surface was used as the polymerization container. A vessel was constructed. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 24 ° C. It was 6.9 as a result of measuring the Knoop hardness of the photocurable material hardened
- Example 14 A photopolymerizer was constructed in the same manner as in Example 1 except that an aluminum container (reflectance: 62%) whose inner surface was chrome-plated (thermal conductivity: 94 W / m ⁇ K) was used as the polymerization container. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 25 ° C. As a result of measuring the Knoop hardness of the photocurable material cured using this photopolymerizer, it was 6.8.
- the photopolymerizer shown in FIG. 1 was constructed. Aluminum was used for the casing of the main body. As the light source, ten 1.1 W high power LEDs (white light) having an aluminum heat dissipation substrate were used. As the light-transmitting plate, glass having a thickness of 1.7 mm was used. As the polymerization container, an aluminum container whose inner surface was painted white (reflectance: 70%) was used. The power source used was a 3000 mAh, 3.7 V lithium ion battery. Using this photopolymerizer, the temperature in the polymerization container after light irradiation for 3 minutes was measured. The temperature at the bottom of the polymerization vessel rose from 20 ° C to 23 ° C. The Knoop hardness of the photocurable material cured using this photopolymerizer was measured and found to be 6.4.
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Abstract
Description
前記重合容器に熱的に接続される本体部であって、前記重合容器の内部を照射する光源を含んで成る本体部と、
を有する光重合器であって、
前記光源から発生する熱を前記重合容器側に導熱するように構成して成ることを特徴とする光重合器。
〔1〕に記載の光重合器と、
を含んで構成される歯科補綴物作製キット。
また、重合容器20は、容器内部からの放熱を抑制するために、その外側面を熱伝導率が低い材料で被覆して構成しても良い。係る材料としては、筐体12の該側面を構成する材料と同様の材料が挙げられる。また、熱伝導率が低い塗料等を塗布しても良い。また、熱伝導率の低い材料で構成された容器内部に、熱伝導率の高い材料の配置、被覆、塗装、メッキなどを行って構成しても良い。
重合容器と光源を含む本体部の配置は、特に制限されない。図1~3に示すように重合容器を下部、本体部を上部に配置してもよいし、上方に光照射するように本体部を下部に、重合容器を上部に配置する構成でもよい。また、本体及び重合容器は筒状のみならず、本発明の効果を損なわない範囲で、いかなる形状であっても良い。また、本体及び重合容器は上下分割だけでなく、図4に示すように本体部30の筐体22内に重合容器40を引き出し状に収容する構成であっても良い。また、図5に示すように本体部50の筐体23と重合容器60とが一体化されていても良い。この場合、筐体23と重合容器60とを異なる材料で構成して一体化しても良いし、重合容器60の内面61にメッキ等を施して熱伝導率を変化させても良い。筐体23と重合容器60とが一体化されている場合、成形体の出し入れのために、重合容器の底部を開口させても良いし、図5に示すように本体部の筐体又は重合容器の一部に扉31を設けても良い。
本体部や重合容器内には温度センサや照度センサ等の各種センサを設けて温度や照度を制御しても良い。
光源の過加熱を防止する為に、光源が取り付けられた基板にヒートシンク等の放冷部材を取り付けても良い。ヒートシンクの材料としては、特に制限されず、アルミ等の公知のものを使用できる。また、本体内部の温度制御の為、本体筺体に内外に貫通する穴を設けても良い。さらには、本体内部にファンを取り付けて、重合容器側に熱せられた空気を送風したり、外部に排風する事で本体内部の温度制御を行っても良い。
光硬化性材料としては、以下に説明する(A)ラジカル重合性単量体と、(B)光重合開始剤と、を含んでなる公知の光硬化性材料が特に制限なく使用できる。また、必要に応じて、(C)充填材やその他の成分を含有していても良い。
本硬化性組成物に配合されるラジカル重合性単量体としては、歯科用として使用可能なラジカル重合性単量体を特に制限なく使用することができる。このようなラジカル重合性単量体としては、(メタ)アクリル系の重合性単量体が一般的である。
メチルメタクリレート、エチルメタクリレート、イソプロピルメタクリレート、ヒドロキシエチルメタクリレート、テトラヒドロフルフリルメタクリレート、アセトアセトキシエチルメタクリレート、グリシジルメタクリレート等のメタクリレート、及びこれらのメタクリレートに対応するアクリレート;
アクリル酸、メタクリル酸、p-メタクリロイルオキシ安息香酸、N-2-ヒドロキシ-3-メタクリロイルオキシプロピル-N-フェニルグリシン、4-メタクリロイルオキシエチルトリメリット酸及びその無水物、6-メタクリロイルオキシヘキサメチレンマロン酸、10-メタクリロイルオキシデカメチレンマロン酸、2-メタクリロイルオキシエチルジハイドロジェンフォスフェート、10-メタクリロイルオキシデカメチレンジハイドロジェンフォスフェート、2-ヒドロキシエチルハイドロジェンフェニルフォスフォネート;
等の酸性基含有重合性単量体。
(i)芳香族化合物系のもの
2,2-ビス(メタクリロイルオキシフェニル)プロパン、2,2-ビス〔4-(3-メタクリロイルオキシ)-2-ヒドロキシプロポキシフェニル〕プロパン、2,2-ビス(4-メタクリロイルオキシフェニル)プロパン、2,2-ビス(4-メタクリロイルオキシポリエトキシフェニル)プロパン、2,2-ビス(4-メタクリロイルオキシジエトキシフェニル)プロパン)、2,2-ビス(4-メタクリロイルオキシテトラエトキシフェニル)プロパン、2,2-ビス(4-メタクリロイルオキシペンタエトキシフェニル)プロパン、2,2-ビス(4-メタクリロイルオキシジプロポキシフェニル)プロパン、2(4-メタクリロイルオキシジエトキシフェニル)-2(4-メタクリロイルオキシジエトキシフェニル)プロパン、2(4-メタクリロイルオキシジエトキシフェニル)-2(4-メタクリロイルオキシジトリエトキシフェニル)プロパン、2(4-メタクリロイルオキシジプロポキシフェニル)-2-(4-メタクリロイルオキシトリエトキシフェニル)プロパン、2,2-ビス(4-メタクリロイルオキシプロポキシフェニル)プロパン、2,2-ビス(4-メタクリロイルオキシイソプロポキシフェニル)プロパン及びこれらのメタクリレートに対応するアクリレート;
2-ヒドロキシエチルメタクリレート、2-ヒドロキシプロピルメタクリレート、3-クロロ-2-ヒドロキシプロピルメタクリレート等のメタクリレート、あるいはこれらのメタクリレートに対応するアクリレートのような-OH基を有するビニルモノマーと、ジイソシアネートメチルベンゼン、4,4’-ジフェニルメタンジイソシアネートのような芳香族基を有するジイソシアネート化合物と、の付加から得られるジアダクト等。
モノエチレングリコールジメタクリレート、ジエチレングリコールジメタクリレート、トリエチレングリコールジメタクリレート、平均分子量400のポリエチレングリコールのジメタクリレート、平均分子量600のポリエチレングリコールジメタクリレート、ブチレングリコールジメタクリレート、ネオペンチルグリコールジメタクリレート、プロピレングリコールジメタクリレート、1,3-ブタンジオールジメタクリレート、1,4-ブタンジオールジメタクリレート、1,6-ヘキサンジオールジメタクリレート、ノナメチレンジオールメタクリレート、及びこれらのメタクリレートに対応するアクリレート;
2-ヒドロキシエチルメタクリレート、2-ヒドロキシプロピルメタクリレート、3-クロロ-2-ヒドロキシプロピルメタクリレート等のメタクリレート、あるいはこれらのメタクリレートに対応するアクリレートのような-OH基を有するビニルモノマーと、ヘキサメチレンジイソシアネート、トリメチルヘキサメチレンジイソシアネート、ジイソシアネートメチルシクロヘキサン、イソフォロンジイソシアネート、メチレンビス(4-シクロヘキシルイソシアネート)のようなジイソシアネート化合物と、の付加から得られるジアダクト;
無水アクリル酸、無水メタクリル酸、1,2-ビス(3-メタクリロイルオキシ-2-ヒドロキシプロポキシ)エチル、ジ(2-メタクリロイルオキシプロピル)フォスフェート;
等の酸性基含有重合性単量体。
トリメチロールプロパントリメタクリレート、トリメチロールエタントリメタクリレート、ペンタエリスリトールトリメタクリレート、トリメチロールメタントリメタクリレート等のメタクリレート及びこれらのメタクリレートに対応するアクリレート等。
ペンタエリスリトールテトラメタクリレート、ペンタエリスリトールテトラアクリレート、ジイソシアネートメチルベンゼン、ジイソシアネートメチルシクロヘキサン、イソフォロンジイソシアネート、ヘキサメチレンジイソシアネート、トリメチルヘキサメチレンジイソシアネート、メチレンビス(4-シクロヘキシルイソシアネート)、4,4-ジフェニルメタンジイソシアネート、トリレン-2,4-ジイソシアネートのようなジイソシアネート化合物と、グリシドールジメタクリレートと、の付加から得られるジアダクト等。
スチレン、ジビニルベンゼン、α-メチルスチレン、α-メチルスチレン等のスチレンあるいはα-メチルスチレン誘導体;
ジアリルテレフタレート、ジアリルフタレート、ジアリルジグリコールカーボネート等のアリル化合物;
等を挙げることができる。これら他の重合性単量体は、単独で使用しても良いし、2種以上を併用しても良い。
光重合開始剤としては、公知のものを制限なく使用する事ができる。例えば、2,4,6-トリメチルベンゾイルジフェニルホスフィンオキサイド、2,6-ジメトキシベンゾイルジフェニルホスフィンオキサイド、2,6-ジクロロベンゾイルジフェニルホスフィンオキサイド、2,4,6-トリメチルベンゾイルフェニルホスフィン酸メチルエステル、2-メチルベンゾイルジフェニルホスフィンオキサイド、ピバロイルフェニルホスフィン酸イソプロピルエステル、ビス-(2,6-ジクロロベンゾイル)フェニルホスフィンオキサイド、ビス-(2,6-ジクロロベンゾイル)-2,5-ジメチルフェニルホスフィンオキサイド、ビス-(2,6-ジクロロベンゾイル)-4-プロピルフェニルホスフィンオキサイド、ビス-(2,6-ジクロロベンゾイル)-1-ナフチルホスフィンオキサイド、ビス-(2,6-ジメトキシベンゾイル)フェニルホスフィンオキサイド、ビス-(2,6-ジメトキシベンゾイル)-2,4,4-トリメチルペンチルホスフィンオキサイド、ビス-(2,6-ジメトキシベンゾイル)-2,5-ジメチルフェニルホスフィンオキサイド、ビス-(2,4,6-トリメチルベンゾイル)フェニルホスフィンオキサイド、ビス-(2,5,6-トリメチルベンゾイル)-2,4,4-トリメチルペンチルホスフィンオキサイドなどのアシルホスフィンオキサイド誘導体;
ジアセチル、アセチルベンゾイル、ベンジル、2,3-ペンタジオン、2,3-オクタジオン、4,4’-ジメトキシベンジル、4,4’-オキシベンジル、カンファーキノン、9,10-フェナンスレンキノン、アセナフテンキノン等のα-ジケトン;
ベンゾインメチルエーテル、ベンゾインエチルエーテル、ベンゾインプロピルエーテル等のベンゾインアルキルエーテル;
2,4-ジエトキシチオキサンソン、2-クロロチオキサンソン、メチルチオキサンソン等のチオキサンソン誘導体;
ベンゾフェノン、p,p’-ジメチルアミノベンゾフェノン、p,p’-メトキシベンゾフェノン等のベンゾフェノン誘導体;
が好適に使用される。
本硬化性組成物は、各種レジン系歯科材料表面の滑沢性付与、歯牙のマニキュア及び変色歯の補修等の目的で使用される表面滑沢材や接着材として用いることができるが、充填材と組み合わることにより、より広範な用途に用いることができる。ここで、充填材としては、公知の有機充填材および無機充填材が使用でき、有機充填材と組み合わせた場合には、義歯の補修材料、義歯床用硬質裏装材、治療経過途中に一旦患者を帰してから治療を再開するまでの数日間、窩洞に充填される仮封材及び暫間的なクラウン、並びにブリッジの作製材料等として好適に使用される。また、無機充填材と組み合わせた場合には、コンポジットレジン、硬質レジン、インレー、アンレー、クラウン等、歯科用修復材料として好適に使用される。
・有機充填材:PEMA; ポリエチルメタクリレート(平均粒子径30μm)
・重合開始剤:CQ; カンファーキノン
・重合性単量体:ND; 1,9-ノナメチレンジオールジメタクリレート
・重合助触媒:DMBE; ジメチル安息香酸エチル
有機充填材としてPEMAを200質量部、重合開始剤としてCQを0.5質量部計り取り、揺動ミキサーを用いて3時間混合し、粉材を得た。重合性単量体としてNDを100質量部、重合助触媒としてDMBEを0.5質量部計り取り、3時間攪拌混合し、液材を得た。
光硬化性材料の粉材2.0gおよび液材1.0gを練和しペーストとした後、内径30mm、厚さ1.5mmの円形の孔を有するポリアセタール製の型にペーストを填入し、透明なPPフィルムで両面をカバーし圧接した。次いで、下記に示す光重合器を用い、3分間の光照射を行い、硬化させた。硬さ試験機を用い、硬化物の光照射面におけるヌープ硬さ(試験力0.1kgf、保持時間20秒)を求めた。
図1に示す光重合器を構成した。本体部の筐体はポリブチレンテレフタレート(熱伝導率:0.22W/m・K)を用いた。光源としては、アルミ製の放熱基板を有する1.1WハイパワーLED(白色光)を10個用いた。透光板は厚み1.7mmのガラス(熱伝導率:0.55W/m・K)を用いた。重合容器としては内面を白色に塗装したアルミ製容器(熱伝導率:237W/m・K)を用いた(反射率70%)。電源は3000mAh、3.7Vのリチウムイオンバッテリーを使用した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から25℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、7.2であった。
図3に示す光重合器を構成した。本体部の筐体はポリブチレンテレフタレートを用いた。光源としては、アルミ製の放熱基板を有する1.1WハイパワーLED(白色光)を10個用いた。このアルミ製放熱基板にアルミ製の導熱部材の一端部を接続し、他端部を重合容器内に配設した。透光板は厚み1.7mmのガラスを用いた。重合容器としては内面を白色に塗装したアルミ製容器を用いた(反射率70%)。電源は3000mAh、3.7Vのリチウムイオンバッテリーを使用した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から27℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、7.7であった。
図3に示す光重合器を構成した。本体部の筐体はポリブチレンテレフタレートを用いた。光源としては、アルミ製の放熱基板を有する1.1WハイパワーLED(白色光)を10個用いた。このアルミ製放熱基板にアルミ製の導熱部材の一端部を接続し、他端部を重合容器内に配設した。重合容器の内部に配設した導熱部材の体積は、2763mm3であった(厚み1mm×深さ10mm×直径88mm(円周276.3mm))。透光板は厚み1.7mmのガラスを用いた。重合容器としては内面をアルミメッキにより鏡面加工したポリブチレンテレフタレート製容器を用いた(反射率88%)。電源は3000mAh、3.7Vのリチウムイオンバッテリーを使用した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から28℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、7.8であった。
LED光源として1W青色LED(ピーク波長470nm)を用いた以外は、実施例3と同様に光重合器を構成した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から28℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、9.2であった。
図1に示す光重合器を構成した。本体部の筐体はポリブチレンテレフタレートを用いた。光源としては、アルミ製の放熱基板を有する5W青色LED(ピーク波長470nm)を10個用いた。透光板は厚み1.7mmのガラスを用いた。重合容器としては内面をアルミメッキ(熱伝導率:237W/m・K)により鏡面加工したポリブチレンテレフタレート製容器を用いた(反射率88%)。電源はスイッチング電源を用い、1A、31Vの設定で使用した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から24℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、9.4であった。
本体部の筺体にアクリロニトリル-ブタジエン-スチレン共重合樹脂(熱伝導率:0.33W/m・K)を用いた以外は、実施例1と同様に光重合器を構成した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から25℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、7.2であった。
本体部の筺体にポリプロピレン(熱伝導率:0.12W/m・K)を用いた以外は、実施例1と同様に光重合器を構成した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から25℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、7.3であった。
本体部の筺体にポリカーボネート(熱伝導率:0.19W/m・K)を用いた以外は、実施例1と同様に光重合器を構成した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から25℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、7.2であった。
本体部の筺体にソーダガラス(熱伝導率:0.74W/m・K)を用いた以外は、実施例1と同様に光重合器を構成した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から25℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、7.1であった。
本体部の筺体に高熱伝導ポリカーボネートTPN2131(三菱エンジニアリングプラスチック社製、熱伝導率:4.9W/m・K)を用いた以外は、実施例1と同様に光重合器を構成した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から24℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、7.0であった。
本体部の筺体に高熱伝導ポリカーボネートTPN1122(三菱エンジニアリングプラスチック社製、熱伝導率:8.8W/m・K)を用いた以外は、実施例1と同様に光重合器を構成した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から24℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、6.8であった。
重合容器として内面を白色に塗装した真鍮製容器(熱伝導率:106W/m・K、反射率70%)を用いた以外は、実施例1と同様に光重合器を構成した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から24℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、7.1であった。
重合容器として内面を白色に塗装した炭素鋼(炭素量0.5%)容器(熱伝導率:54W/m・K、反射率70%)を用いた以外は、実施例1と同様に光重合器を構成した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から24℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、6.9であった。
重合容器として内面をクロムメッキ処理(熱伝導率:94W/m・K)したアルミ製容器(反射率62%)を用いた以外は、実施例1と同様に光重合器を構成した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から25℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、6.8であった。
図1に示す光重合器を構成した。本体部の筐体はアルミニウムを用いた。光源としては、アルミ製の放熱基板を有する1.1WハイパワーLED(白色光)を10個用いた。透光板は厚み1.7mmのガラスを用いた。重合容器としては内面を白色に塗装したアルミ製容器を用いた(反射率70%)。電源は3000mAh、3.7Vのリチウムイオンバッテリーを使用した。この光重合器を用いて、3分間光照射した後の重合容器内の温度を測定した。重合容器内底部の温度は20℃から23℃に上昇した。
この光重合器を用いて硬化させた光硬化性材料のヌープ硬さを測定した結果、6.4であった。
10、30、50・・・本体部
11・・・光源
12、22、23・・・筐体
13、14、16・・・筐体の外側面
15・・・透光板
17、19・・・導熱部材
20、40、60・・・重合容器
21、41、61・・・重合容器の内面
31・・・扉
Claims (8)
- 重合容器と、
前記重合容器に熱的に接続される本体部であって、前記重合容器の内部を照射する光源を含んで成る本体部と、
を有する光重合器であって、
前記光源から発生する熱を前記重合容器側に導熱するように構成して成ることを特徴とする光重合器。 - 前記本体部の少なくとも外側面が熱伝導率10(W/m・K)以下の材料で構成されている請求項1に記載の光重合器。
- 前記重合容器が熱伝導率50(W/m・K)以上の材料で構成されている請求項1に記載の光重合器。
- 前記重合容器の内面が反射率60%以上である請求項1に記載の光重合器。
- 前記光源がLEDである請求項1に記載の光重合器。
- 前記光源と前記重合容器とを熱的に接続する導熱部材を有する請求項1に記載の光重合器。
- 前記導熱部材が熱伝導率50(W/m・K)以上の材料で構成されている請求項6に記載の光重合器。
- 光硬化性材料と、
請求項1に記載の光重合器と、
を含んで構成される歯科補綴物作製キット。
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EP18760805.4A EP3590466A4 (en) | 2017-02-28 | 2018-02-28 | PHOTOPOLYMERIZATION DEVICE AND KIT FOR THE PRODUCTION OF DENTAL PROSTHESES |
KR1020197025063A KR20190121310A (ko) | 2017-02-28 | 2018-02-28 | 광중합기 및 치과 보철물 제작 키트 |
CA3053997A CA3053997A1 (en) | 2017-02-28 | 2018-02-28 | Photopolymerization device and dental prosthesis manufacturing kit |
JP2019503064A JPWO2018159682A1 (ja) | 2017-02-28 | 2018-02-28 | 光重合器及び歯科補綴物作製キット |
AU2018228161A AU2018228161A1 (en) | 2017-02-28 | 2018-02-28 | Photopolymerization device and dental prosthesis manufacturing kit |
US16/488,813 US20210196440A1 (en) | 2017-02-28 | 2018-02-28 | Photopolymerization device and dental prosthesis manufacturing kit |
RU2019130511A RU2019130511A (ru) | 2017-02-28 | 2018-02-28 | Устройство для фотополимеризации и набор для изготовления зубного протеза |
CN201880014435.8A CN110381881A (zh) | 2017-02-28 | 2018-02-28 | 光聚合器以及牙科修复物制作套件 |
BR112019017809-0A BR112019017809A2 (pt) | 2017-02-28 | 2018-02-28 | Dispositivo de fotopolimerização e kit de fabricação de prótese dentária |
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CN203802588U (zh) * | 2014-04-09 | 2014-09-03 | 邵长彪 | 一种用于牙模具的光固化装置 |
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JP2005161002A (ja) | 2003-12-04 | 2005-06-23 | Shiyoufuu:Kk | 加温機能付きled光重合器 |
JP2012034838A (ja) | 2010-08-06 | 2012-02-23 | Gc Corp | 光重合用容器、及び光重合器 |
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JP7334903B2 (ja) | 2020-01-08 | 2023-08-29 | 株式会社トクヤマデンタル | 重合装置 |
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