WO2017025997A1 - Résine de gouttière dentaire de type à deux pâtes - Google Patents

Résine de gouttière dentaire de type à deux pâtes Download PDF

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Publication number
WO2017025997A1
WO2017025997A1 PCT/JP2015/072435 JP2015072435W WO2017025997A1 WO 2017025997 A1 WO2017025997 A1 WO 2017025997A1 JP 2015072435 W JP2015072435 W JP 2015072435W WO 2017025997 A1 WO2017025997 A1 WO 2017025997A1
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WO
WIPO (PCT)
Prior art keywords
paste
agent
liquid
powder
meth
Prior art date
Application number
PCT/JP2015/072435
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English (en)
Japanese (ja)
Inventor
文雄 寺岡
Original Assignee
文雄 寺岡
ＮｅｏＷａｖｅ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 文雄 寺岡, ＮｅｏＷａｖｅ株式会社 filed Critical 文雄 寺岡
Priority to PCT/JP2015/072435 priority Critical patent/WO2017025997A1/fr
Publication of WO2017025997A1 publication Critical patent/WO2017025997A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/884—Preparations for artificial teeth, for filling teeth or for capping teeth comprising natural or synthetic resins
    • A61K6/887—Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/90—Compositions for taking dental impressions

Definitions

  • the present invention relates to a two-paste type dental tray resin for the production of dental personal trays or foundation floors. More specifically, the present invention relates to a two-paste type dental tray resin composed of “a paste-like first agent containing a polymerization initiator” and “a paste-like second agent containing a polymerization accelerator”.
  • the “pasty” in the present invention means having the following properties. -When force is applied, it is easily deformed so that it can be mixed and formed into any shape. ⁇ As long as no force is applied, even if the plate is placed on a flat plate and tilted, for example, about 15 °, it does not flow naturally.
  • Dental impression trays can be broadly divided into “ready-made trays” and “individual trays” and “individual tooth trays” that are individually manufactured according to the patient's dentition and abutment teeth. is there.
  • the personal tray is a tray that is specially manufactured according to the dentition form for each case so that the thickness of the impression material is constant in order to improve the dimensional accuracy of the impression.
  • the personal tray is manufactured using an immediate polymerization resin for the tray using a paraffin wax having a thickness of 1.4 to 2.0 mm as a spacer on the dentition model obtained from the outline impression.
  • an adhesive suitable for each impression material is used, but a holding hole is provided if necessary.
  • the individual tooth tray includes “resin individual tooth tray” made of immediate polymerization resin and “copper band individual tooth tray” manufactured by processing a copper plate.
  • the former “resin individual tooth tray” is mainly used. Since the resin individual tooth tray does not adhere to the impression material, an adhesive suitable for each type of impression material to be used is necessary. However, the resin individual tooth tray can be applied to any abutment crown.
  • the foundation floor is a temporary denture base that forms the base of the occlusal floor and supports the occlusal levee, and is made along the outline of the final denture.
  • Patent Literature The present invention relates to a technique using “two types of tray resins made of a paste-like composition”. Therefore, a search was conducted using the “patent information platform”, which is a database for searching patent documents, and the following documents with “paste” were found for dental impression trays (personal trays, etc.). did.
  • Patent Document 1 The invention of JP-A-2015-48328 (Patent Document 1) relates to a “powder-type” dental curable material.
  • paragraph 0057 the use of the powder-type dental curable material of the present invention is described.
  • the method there is a description that “weigh out a desired amount of powder material and liquid into a rubber cup and knead until a uniform paste is obtained using a kneading stick or spatula”.
  • the mixing operation is performed by measuring a powder material and a liquid agent and kneading them using a kneading stick or a spatula.
  • Patent Document 2 The invention of Japanese Patent Application Laid-Open No. 2011-17449 (Patent Document 2) is used for trays (personal trays, etc.) used for taking impressions of teeth and other types using impression materials in the field of dentistry, especially for resin trays.
  • a paste / paste type using a mixture of a basic paste containing alginate as a main component and a hardener paste containing calcium sulfate as a main component, or It is effective for any type such as a type in which a powder mainly composed of alginate and calcium sulfate is mixed with water.
  • Patent Document 3 In claim 1 and other parts of JP-T 2010-525067 (Patent Document 3), “1: 1 (volume) paste / paste self-adhesive dental cement, 1 to 50% by weight of polymerizable acidity”
  • a dental cement characterized in that it comprises: 1 to 50% by weight of polymerizable non-acidic monomer; and 0.1 to 2% by weight of benzoylthiourea reducing agent.
  • Patent Document 4 The invention of JP-A-2009-189447 (Patent Document 4) relates to a method for producing a tooth mold / gingival model, but in paragraph 0027, “resin powder and liquid are accurately measured. ⁇ The state of taking out the resin that has been mixed and pasted is shown in Fig. 10. Next, the mixed resin is filled into the space created by the wax wax of the upper and lower basins. ”)”.
  • Patent Document 5 The invention disclosed in Japanese Patent Application Laid-Open No. 2005-66166 (Patent Document 5) relates to a method for forming an artificial tooth. There is a description of “filling resin”, and paragraphs 0007, 0008, 0010, 0020, and 0024 also have a description of “resin-like resin and paste-like resin”.
  • JP2015-48328A JP2011-17449 Special table 2010-525067 JP 2009-189447 A JP-A-2005-66166
  • Patent Documents 1 to 5 described above describe a powder-liquid type “paste” -like dental curable material composed of a mixture of “powder” and “liquid”.
  • the “powder material” is a polymer powder such as a (meth) acrylate polymer
  • the “liquid agent” is a monomer liquid such as a (meth) acrylate monomer.
  • MMA methyl methacrylate
  • Such powder-liquid type (powder-liquid type) curable materials are not limited to literature proposals, but are used by surgeons (dentists and dental technicians) in almost all dental clinics and laboratories. (Prepared).
  • the “two-paste type dental tray resin” of the present invention is From the paste-like 1st composition (C1) which has a monofunctional or polyfunctional (meth) acrylate type monomer (m), a polymer (p), a filler (f), and a polymerization initiator (i) as an essential component.
  • first agent containing a polymerization initiator From the paste-like second composition (C2) containing the monofunctional or polyfunctional (meth) acrylate monomer (m), the polymer (p), the filler (f) and the polymerization accelerator (a) as essential constituent components "Second agent with polymerization accelerator” Consisting of It is characterized by.
  • each paste can be easily measured with a measuring spoon. Moreover, it is easy to measure a certain amount of each paste, and a target amount can be measured.
  • a kneaded state is obtained by coloring one paste or coloring one paste and the other in different colors. Is easily visible.
  • the kneading time can be shortened compared to the powder-liquid type. Furthermore, if a kneader is used, automatic kneading is possible.
  • the combination of the two paste types (paste-paste type) of the present invention is easy to measure, easy to knead, can be automatically kneaded, and has excellent operability. These points are also a great advantage of the two-paste agent type (paste-paste type) combination, which cannot be achieved with the conventional “powder-liquid type” combination.
  • the “two-paste type dental tray resin” of the present invention is From the paste-like 1st composition (C1) which has a monofunctional or polyfunctional (meth) acrylate type monomer (m), a polymer (p), a filler (f), and a polymerization initiator (i) as an essential component.
  • first agent containing a polymerization initiator From the paste-like second composition (C2) containing the monofunctional or polyfunctional (meth) acrylate monomer (m), the polymer (p), the filler (f) and the polymerization accelerator (a) as essential constituent components "Second agent with polymerization accelerator” It is characterized by the following.
  • the first agent is divided into two parts or the second agent is divided into two parts, so that “3 agents” or “4 agents” are nominally outside the technical scope of the present invention. is not.
  • Example of polymer (p)) Polymethylmethacrylate (PMMA) ⁇ Methyl methacrylate-ethyl methacrylate copolymer ⁇ Polyvinyl chloride, vinyl chloride-vinyl acetate copolymer ⁇ Polystyrene, ⁇ Acrylonitrile-styrene copolymer (AS resin) ⁇ Acrylonitrile-butadiene-styrene copolymer (ABS resin) ⁇ Ethylene-vinyl acetate copolymer (EVA)
  • Inorganic filler such as calcium sulfate dihydrate (dihydrate gypsum), calcium carbonate, alumina, silica, titanium oxide, cristobalite, glass beads, zinc stearate ⁇ Organic filler ⁇ Organic-inorganic composite filler
  • polymerization accelerator (a) Taking the case where the polymerization initiator is a peroxide-based initiator such as benzoyl peroxide as an example, N, N-dimethyl-p-toluidine, dihydroxyethyl-p-toluidine, or the like is used as the polymerization accelerator. .
  • Examples include liquid paraffin, paraffin and alcohol.
  • Example 1 -1- Composition of the first agent
  • Vinyl chloride-vinyl acetate copolymer 12% ⁇ Polymethyl methacrylate (PMMA) 8% ⁇ Methyl methacrylate (MMA) 25% ⁇ Calcium sulfate dihydrate (dihydrate gypsum) 35.5% ⁇ Stearic acid 7% ⁇ Glass beads 8% ⁇ Liquid paraffin 3% ⁇ Benzoyl peroxide (polymerization initiator) 1.5%
  • Example 2 -1- (Composition) The same formulation as “Composition of the first agent” and “Composition of the second agent” in Example 1 except that 8% of low-volatility ethylene glycol dimethacrylate (EGDMA) was used instead of methyl methacrylate (MMA) A composition was prepared.
  • -2- (effect) The evaluations related to “weighing, kneading, operability, physical properties, safety, transportation” in Table 1 above are as follows, which are clearly superior to those of the conventional “powder-liquid” type. It was. At this time, the irritating odor was clearly less than that in Example 1. Irritant odor ( ⁇ ) Measurement ( ⁇ ), kneading ( ⁇ ), operability ( ⁇ ), physical properties ( ⁇ ), safety ( ⁇ ), transportation ( ⁇ )
  • Example 3 -1- (Composition) Instead of methyl methacrylate (MMA), 8% of diethylene glycol dimethacrylate (DEGDMA), which is less volatile than ethylene glycol dimethacrylate (EGDMA) used in Example 2, was used.
  • the composition was prepared in the same formulation as the “Composition of Agent” and “Composition of Second Agent”.
  • -2- (effect) The evaluations related to “weighing, kneading, operability, physical properties, safety, transportation” in Table 1 above are as follows, which are clearly superior to those of the conventional “powder-liquid” type. It was. At this time, the irritating odor was very small compared to Example 1. Irritant odor ( ⁇ ) Measurement ( ⁇ ), kneading ( ⁇ ), operability ( ⁇ ), physical properties ( ⁇ ), safety ( ⁇ ), transportation ( ⁇ )
  • Example 4 -1- (Composition) The same as “Composition of the first agent” and “Composition of the second agent” in Example 1, except that 8% of 2-hydroxyethyl methacrylate (HEMA) with low volatility was used instead of methyl methacrylate (MMA).
  • HEMA 2-hydroxyethyl methacrylate
  • MMA methyl methacrylate
  • a composition was prepared according to the recipe.
  • the “two-paste type dental tray resin” of the present invention is extremely useful for both patients receiving dental treatment and surgeons involved in dental treatment (dentist, dental technician).

Abstract

La problème décrit par la présente invention est de fournir une résine de gouttière dentaire du type à deux pâtes qui est utile à la fois pour un patient et pour un opérateur (tel qu'un dentiste ou un technicien dentaire). La solution selon l'invention porte sur une résine de gouttière dentaire du type à deux pâtes caractérisée en ce qu'elle comprend : « un premier agent contenant un initiateur de polymérisation » qui comprend une première composition (C1) sous forme de pâte contenant, comme constituants essentiels, un monomère (m) à base de (méth)acrylate monofonctionnel ou polyfonctionnel, un polymère (p), une charge (f) et l'initiateur de polymérisation (i) ; et « un second agent contenant un accélérateur de polymérisation » qui comprend une seconde composition (C2) sous la forme d'une pâte contenant, comme constituants essentiels, un monomère (m) à base de (méth)acrylate monofonctionnel ou polyfonctionnel, un polymère (p), une charge (f) et l'accélérateur de polymérisation (a).
PCT/JP2015/072435 2015-08-07 2015-08-07 Résine de gouttière dentaire de type à deux pâtes WO2017025997A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/072435 WO2017025997A1 (fr) 2015-08-07 2015-08-07 Résine de gouttière dentaire de type à deux pâtes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/072435 WO2017025997A1 (fr) 2015-08-07 2015-08-07 Résine de gouttière dentaire de type à deux pâtes

Publications (1)

Publication Number Publication Date
WO2017025997A1 true WO2017025997A1 (fr) 2017-02-16

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07145017A (ja) * 1993-06-23 1995-06-06 Dentsply Internatl Inc 歯科製品を製造するための方法およびディスペンサー
JPH07291819A (ja) * 1994-04-28 1995-11-07 San Medical Kk １ペースト状の歯科用硬化性組成物および硬化方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07145017A (ja) * 1993-06-23 1995-06-06 Dentsply Internatl Inc 歯科製品を製造するための方法およびディスペンサー
JPH07291819A (ja) * 1994-04-28 1995-11-07 San Medical Kk １ペースト状の歯科用硬化性組成物および硬化方法

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