WO2016032012A1 - Ébauche composite en forme de colonne creuse pour restaurations dentaires indirectes - Google Patents

Ébauche composite en forme de colonne creuse pour restaurations dentaires indirectes Download PDF

Info

Publication number
WO2016032012A1
WO2016032012A1 PCT/KR2014/007882 KR2014007882W WO2016032012A1 WO 2016032012 A1 WO2016032012 A1 WO 2016032012A1 KR 2014007882 W KR2014007882 W KR 2014007882W WO 2016032012 A1 WO2016032012 A1 WO 2016032012A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow
pillar
blank
composite blank
dental
Prior art date
Application number
PCT/KR2014/007882
Other languages
English (en)
Korean (ko)
Inventor
오명환
김원호
유현철
이대영
김윤기
Original Assignee
(주) 베리콤
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 (주) 베리콤 filed Critical (주) 베리콤
Priority to PCT/KR2014/007882 priority Critical patent/WO2016032012A1/fr
Publication of WO2016032012A1 publication Critical patent/WO2016032012A1/fr

Links

Images

Classifications

    • 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
    • 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
    • A61K6/831—Preparations for artificial teeth, for filling teeth or for capping teeth comprising non-metallic elements or compounds thereof, e.g. carbon
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
    • A61L27/44—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix

Definitions

  • the present invention relates to a hollow pillar-shaped composite blank for indirect dental restorations, and more particularly to a hollow pillar-shaped composite composite blank having excellent physical properties without uniform cracks.
  • dental restorations can be broadly divided into direct and indirect restorations.
  • Direct restoration is used for small areas that can be restored in the oral cavity.
  • the curing method uses chemical curing and photocuring.
  • Typical indirect restoration prosthesis fabrication can use a variety of materials and hardening methods.
  • Dental restorative materials used in dental restorations can be used for a wide range of dental repairs and aesthetic dental treatments, in addition to general dental procedures for repairing or fixing the entire crown or tooth breakage caused by dental caries or fractures.
  • One of the key dental materials in use is one of the key dental materials in use.
  • dental prosthesis is a method of artificial prosthesis such as a fixed prosthesis (crown, bridge) or a removable prosthesis (prosthesis that can be inserted and removed; denture, partial denture). To make a substitute.
  • Artificial prosthesis such as a fixed prosthesis (crown, bridge) or a removable prosthesis (prosthesis that can be inserted and removed; denture, partial denture).
  • dental prostheses are often used as a substitute for dental structures on a custom basis.
  • Common dental prostheses include restorations, supplements, inlays, onlays, veneers, full and partial crowns, bridges, implants, posts, etc. Can be mentioned.
  • the prosthesis is produced by a technician, a professional manufacturer who is skilled in laboratories that can be manufactured by hand or by a skilled dentist.
  • Traditional dental prosthesis manufacturing procedures require a patient to visit at least two dentists. At the first visit, it is a rubber-like product that impresses teeth and teeth. After that, the prosthesis is made of metal, ceramic, or composite material, and after the completion of the production, the prosthesis is comfortably aligned with the patient's oral condition.
  • the dental prosthesis manufacturing period takes a period of 1 day to 2 days or more, and since the production of the dental prosthesis by the manual labor of the technicians require a high level of skill and finesse.
  • CAD / CAM devices include ce.novation (Inocermic, Germany), Ceron (Degudent, Germany), Cerec 3D (Sirona, Germany), Cerec InLab (Sirona, Germany), Decim (Cad.esthetcs, Sweden), DigiDent (Girrbach, Germany), etkon (etkon, Germany), Everest (Kavo, Germany), Evolution 4D (D4D Technologies, USA), GN-1 (GC international, Japan), Lava (3M ESPE, Germany), Medfacturing (Bego Medical, Germany) ), Pricident DCS (DCS, Switzerland), Perfactory (DeltaMed, Germany), Procera Biocare, Sweden), Pro 50 (Cynovad, Canada), Wol-Cram (Wol-Dent, Germany), Xawx (Xawex, Switzerland), ZEN -CAM (ZFN, Germany), ZirkonZahn (Steger, Italy) and the like are commercially available.
  • Dental prostheses using CAD / CAM devices typically use a mill blank, i.e. a solid blank, which is the material from which the prosthesis is cut or engraved. Mill blanks are typically made of ceramic material. VITA CELAY TM porcelain blanks, VITA Mark II Pitablocks TM and PITA IN-CERAM TM ceramic blanks (Vita Zahn, Bad Saggingen, Germany) Commercially available mill blanks are available. In addition, machineable mica ceramic blanks (eg, Corning MACOR TM blanks and Dentsply DICOR TM blanks) are commercially available.
  • US Patent Publication No. US2003-0031984 discloses ceramic dental mill blanks.
  • the ceramic dental mill blanks are mill blanks used for CAD / CAM, and the materials are very hard, resulting in excessive wear of the tool and a long time for producing a dental prosthesis. Due to the relatively high production cost.
  • US Patent No. 6,899,948 discloses dental materials having improved visual opacity and mechanical strength by applying nano-sized silica particles.
  • the application of nano-sized silica particles having an average size of 200 nm or less has a disadvantage in that the dental composition lacks rheological properties.
  • US Patent No. 7,255,562 discloses a dental mill blank consisting of a polymeric resin matrix and a filler.
  • the dental mill blank has suppressed crack generation generated during mill blank manufacture and has excellent cuttability and hardness. However, cracks are still generated when the blank is made of a large size. This is because the self-stress on the polymerization shrinkage rate due to photocuring could not be controlled.
  • the direction of polymerization shrinkage is directed toward the center of gravity of the self-polymerization type and the direction of the light source to the photopolymerization type. Since the van der Waals interaction between monomers before the polymerization process is converted into a strong covalent bond through polymerization, a certain amount of shrinkage occurs. The force of shrinkage is very strong, causing blank margins or cracks in the material itself.
  • the self-polymerizing type In the case of the self-polymerizing type, it has a buffering effect of shrinkage stress caused by bubbles in the mixing process of the composite paste, and the curing process of the composite paste (gel point) is not as rapid as photopolymerization. Less cracking occurs but overall physical properties are much lower than those of photopolymerization.
  • the total energy required for polymerization is expressed as the product of light intensity and time, which is polymerized in proportion to this amount.
  • the polymerization may be performed for a long time with weak light.
  • the methods derived from this principle are relatively weakly irradiated with light intensity, allowing the hardening of the mill blank to proceed slowly, as in autopolymerization, to disperse the self stress, to delay the complete hardening of the mill blank, and to induce weak bonding or hardening. It is a method of finally polymerizing after waiting for a certain time.
  • Another object of the present invention is to provide a dental composite blank in which the plurality of indirect restorations have uniform physical properties when the plurality of indirect restorations are manufactured in the dental composite blank molded into a hollow pillar shape.
  • the dental composite blank is at least one selected from monomers containing unsaturated double bonds and oligomers containing unsaturated double bonds; filler; And is made of a blank composition comprising a polymerization initiator,
  • the dental composite blank is provided with a dental composite blank in the form of a hollow pillar comprising a hollow therein.
  • the hollow pillar may be any one selected from among a hollow cylinder, a hollow elliptic cylinder, and a hollow polygonal cylinder, and the hollow may be any one selected from a cylinder, an elliptic cylinder, and a polygonal cylinder.
  • the hollow may be any one selected from a square pillar, a pentagonal pillar, a hexagonal pillar, a octagonal pillar, an octagonal pillar, a octagonal pillar, a decagonal pillar, a rim pillar and a twelve pillar.
  • the hollow pillar shape may be in the form of a washer.
  • the ratio (D / d) of the diameter (D) of the pillar to the diameter (d) of the hollow may be 1 to 25.
  • the ratio (D / d) of the diameter (D) of the pillar to the diameter (d) of the hollow may be 5 to 20.
  • the dental composite blank may be polymerized by molding the blank composition into a hollow pillar shape.
  • the blank composition is at least one 100 parts by weight selected from monomers including unsaturated double bonds and oligomers containing unsaturated double bonds; 0.001 to 5 parts by weight of a polymerization initiator; And 40 to 900 parts by weight of a filler.
  • the polymerization initiator may include at least one selected from a photopolymerization initiator and a thermal polymerization initiator.
  • the monomer including the unsaturated double bond may be a methacrylate (MA) monomer.
  • the methacrylate monomers include 2,2-bis- (4- (2-hydroxy-3-methacryloyloxypropoxy) phenyl) propane (Bis-GMA), ethylene glycol dimethacrylate (TGDMA) , Triethylene glycol dimethacrylate (TEGDMA), ethoxylate bisphenol A dimethacrylate (Bis-EMA), urethane dimethacrylate (UDMA), dipentaerythritol pentaacrylate monophosphate (dipentaerythritol pentaacrylate monophosphate, PENTA), 2-hydrozyethyl methacrylate (HEMA), polyalkenic acid, biphenyl dimethacrylate (BPDM), and glycerol phosphate dimethacryl It may be at least one selected from the group (glycerol phosphate dimethacrylate, GPDM).
  • Bis-GMA 2,2-bis- (4- (2-hydroxy-3-methacryloyloxypropoxy) phenyl) propane
  • the methacrylate monomers include 2,2-bis- (4- (2-hydroxy-3-methacryloyloxypropoxy) phenyl) propane (Bis-GMA), ethylene glycol dimethacrylate (TGDMA) , Ethoxylate bisphenol A dimethacrylate (Bis-EMA), and urethane dimethacrylate (UDMA).
  • the filler may include at least one selected from inorganic fillers and organic fillers.
  • the inorganic filler may be synthetic amorphous silica, crystalline silica, barium silicate, barium borosilicate, barium fluoroaluminoborosilicate, barium fluoroaluminoborosilicate Barium aluminoborosilicate, strontium silicate, strontium borosilicate, strontium aluminoborosilicate, calcium silicate, calcium silicate, alumino borosilicate It may include one or more selected from alumino silicate, silicon nitrides, titanium dioxide, calcium hydroxy apatite, zirconia, and bioactive glass. .
  • Barium silicate, barium borosilicate, barium fluoroaluminoborosilicate, barium aluminoborosilicate, strontium silicate, strontium silicate Silicate (strontium borosilicate), and strontium aluminoborosilicate (strontium aluminoborosilicate) is in the form of particles, the size of the particles (size) may be 0.2 to 3 ⁇ m.
  • the synthetic amorphous silica, crystalline silica and zirconia may be in the form of particles, and the size of the particles may be 5 to 100 nm.
  • the dental composite blank may have a diameter D of 10 to 110 mm and a diameter d of 5.5 to 20 mm of the hollow pillar.
  • a method of manufacturing a dental composite blank comprising.
  • step (b) may further comprise the step (b ') of removing the bubbles of the blank composition filled in the mold in the form of the hollow pillar.
  • the plurality of indirect restorations when manufacturing a plurality of indirect restorations in the dental composite blank molded in the form of a hollow column, may provide a dental composite blank having uniform physical properties.
  • according to the present invention can provide a dental composite blank capable of producing a plurality of dental indirect restorations from one dental composite blank, thereby providing an economical dental composite blank.
  • FIG. 1 is a view of a hollow cylindrical mold according to an embodiment of the present invention.
  • FIG. 2 is a view of a cylindrical mold.
  • FIG. 3 is a view of a composite blank made in accordance with an embodiment of the present invention.
  • FIG. 4 is a view of a composite blank prepared according to Comparative Example 1.
  • the dental composite blank of the present invention is made of a blank composition comprising at least one selected from a monomer comprising an unsaturated double bond and an oligomer comprising an unsaturated double bond, a filler, and a polymerization initiator, and comprising a hollow therein. It is shaped like a pillar.
  • the hollow pillar may be any one selected from among a hollow cylinder, a hollow elliptic cylinder, and a hollow polygonal cylinder, and the hollow may be any one selected from a cylinder, an elliptic cylinder, and a polygonal cylinder.
  • the hollow polygonal pillars are hollow square pillars, hollow pentagonal pillars, hollow hexagonal pillars, hollow octagonal pillars, hollow octagonal pillars, hollow octagonal pillars, hollow octagonal pillars, hollow rim pillars and hollow twelve pillars. It may be any one selected from each pillar, and the hollow may be any one selected from a square pillar, a pentagonal pillar, a hexagonal pillar, a octagonal pillar, an octagonal pillar, a square pillar, a decagonal pillar, a shim pilgal pillar, and a twelve-octagonal pillar. It doesn't happen.
  • the hollow polygonal pillar may be preferably in the form of a washer.
  • the ratio (D / d) of the diameter (D) of the pillar to the diameter (d) of the hollow of the composite blank may vary depending on the field and purpose of use, but preferably 1 to 25, more preferably May be 5 to 20. In the case of more than 25, it may be difficult to manufacture the hollow columnar shape, and a difference in physical properties may occur depending on the processing position. If it is less than 1, there is no difference in physical properties depending on the difficulty of manufacturing and processing location, but the processing part may be reduced and economic efficiency may be reduced.
  • the ratio H / D of the height H to the diameter D of the hollow pillar may be greater than 0 and less than or equal to 20. Preferably greater than 0 and 10 or less, even more preferably greater than 0 and 5 or less.
  • the composite blank may be prepared by curing the blank composition after filling the mold. At this time, by curing, shrinkage of 2 to 10% may occur. Due to the stress generated by the polymerization shrinkage, cracks may occur in the composite blank. This stress can be increased by the surface bonding force present on the surface of the blank composition and the mold. Therefore, the contact area between the blank composition and the mold can be minimized to prevent cracking of the composite blank. Since the blank composition is filled in the mold having an open top, the contact area is wider as the ratio (H / D) of the height (H) to the diameter (D) increases, so that the polymerization shrinkage stress may act.
  • the composite blank may be obtained by molding and polymerizing the blank composition into a hollow pillar shape.
  • the blank composition is at least one 100 parts by weight selected from monomers including unsaturated double bonds and oligomers containing unsaturated double bonds; 0.001 to 5 parts by weight of a polymerization initiator; And 40 to 900 parts by weight of a filler.
  • the content of at least one selected from monomers including the unsaturated double bonds and oligomers containing the unsaturated double bonds may vary depending on the field and purpose of use.
  • the monomer including the unsaturated double bond and the oligomer including the unsaturated double bond play an important role in the degree of dispersion during polymerization of the blank composition, and may be an important factor for determining wear resistance and workability.
  • the content of the monomer and oligomer when the content of the monomer and oligomer is less than 10% by weight based on the total weight of the blank composition, it may be difficult to form a polymer and may not be easily mixed with the filler. If the content of the monomer and oligomer is more than 40% by weight based on the total weight of the blank composition may be undesirable due to the increase in flowability. Therefore, at least one selected from the monomer including the unsaturated double bond and the oligomer containing the unsaturated double bond may be included in an amount of 10 to 40% by weight based on the total weight of the blank composition, and preferably 15 to 30% by weight. May be included.
  • the filler may be preferably included in 60 to 90% by weight, more preferably 65 to 85% by weight, even more preferably based on the total weight of the blank composition Preferably 70 to 80% by weight.
  • the polymerization initiator may be a photopolymerization initiator and a thermal polymerization initiator.
  • the type of catalyst used in the polymerization reaction can be carried out in various ways, such as cation formation mechanism, anion formation mechanism, radical formation mechanism, etc., the double radical formation mechanism is most commonly used.
  • the polymerization reaction can be carried out by photopolymerization reaction, thermal polymerization reaction and the like.
  • the photopolymerization reaction is performed by a photopolymerization initiator activated by visible light to initiate the polymerization of monomers, and the photopolymerization initiator is an ⁇ -diketone-based carbonyl compound photopolymerization initiator such as camphorquinone and acylphosphine oxide.
  • a system photoinitiator etc. can be used.
  • the thermal polymerization initiator may be a peroxide system such as benzoyl peroxide, and radicals may be formed by heat to initiate polymerization.
  • the polymerization initiator for the polymerization reaction may be included in the composition within the range that does not affect the physical properties of the product while inducing the polymerization reaction, it may vary depending on the type and content of the other components of the composition and the type of catalyst.
  • the monomer including the unsaturated double bond may exhibit mechanical strength as a dental material, and any monomer can be used as long as it is polymerizable.
  • the monomer may be a methacrylate (MA) monomer.
  • the methacrylate monomers include 2,2-bis- (4- (2-hydroxy-3-methacryloyloxypropoxy) phenyl) propane (Bis-GMA), ethylene glycol dimethacrylate (TGDMA) , Triethylene glycol dimethacrylate (TEGDMA), ethoxylate bisphenol A dimethacrylate (Bis-EMA), urethane dimethacrylate (UDMA), dipentaerythritol pentaacrylate monophosphate (dipentaerythritol pentaacrylate monophosphate, PENTA), 2-hydrozyethyl methacrylate (HEMA), polyalkenic acid, biphenyl dimethacrylate (BPDM), and glycerol phosphate dimethacryl Glycerol phosphate dimethacrylate (GPDM).
  • Bis-GMA 2,2-bis- (4- (2-hydroxy-3-methacryloyloxypropoxy) phenyl) propane
  • TGDMA Triethylene glycol dimeth
  • the methacrylate monomer is 2,2-bis- (4- (2-hydroxy-3-methacryloyloxypropoxy) phenyl) propane (Bis-GMA), ethylene glycol dimethacrylate (TGDMA), ethoxylate bisphenol A dimethacrylate (Bis-EMA), urethane dimethacrylate (UDMA).
  • Bis-GMA 2,2-bis- (4- (2-hydroxy-3-methacryloyloxypropoxy) phenyl) propane
  • TGDMA ethylene glycol dimethacrylate
  • Bis-EMA ethoxylate bisphenol A dimethacrylate
  • UDMA urethane dimethacrylate
  • An inorganic filler, an organic filler, a stabilizer, etc. can be used for the said filler.
  • the inorganic filler may be synthetic amorphous silica, crystalline silica, barium silicate, barium borosilicate, barium fluoroaluminoborosilicate, barium fluoroaluminoborosilicate Barium aluminoborosilicate, strontium silicate, strontium borosilicate, strontium aluminoborosilicate, calcium silicate, calcium silicate, alumino borosilicate alumino silicate, silicon nitrides, titanium dioxide, calcium hydroxy apatite, zirconia, and bioactive glass may be used.
  • the barium silicate, barium borosilicate, barium fluoroaluminoborosilicate, barium aluminoborosilicate, strontium silicate, strontium silicate Borosilicate and strontium aluminoborosilicate are in the form of particles, the diameter of the particles may be 0.2-3 ⁇ m, preferably 0.3-2 ⁇ m, more preferably 0.4-0.4 1 ⁇ m. If the diameter of the particles is smaller than 0.2 ⁇ m, uniform dispersion in the composition may be difficult due to cohesion between the particles, and bubbles may be difficult to remove and work by increasing the viscosity.
  • the synthetic amorphous silica, crystalline silica and zirconia are in the form of particles, the diameter of the particles may be 5 to 100 nm, preferably 6 to 50 nm, more preferably Preferably 7 to 20 nm.
  • the inorganic filler is hydrophilic, it is incompatible with the hydrophobic methacrylate-based monomer, and thus the affinity with the monomer may be enhanced by including a binder component or by surface treating the inorganic filler with a silane coupling agent.
  • the organic filler is prepared in the form of a powder after synthesizing a monomer containing an unsaturated double bond or a monomer compatible with the monomer in the dental restorative composition by bulk polymerization, emulsion polymerization, suspension polymerization, or the like.
  • grains which made the average particle diameter into 0.005-100 micrometers can be used. In some cases, without adding an inorganic or organic filler, instead of increasing the curing molecular weight of the monomer containing the unsaturated double bond may increase the mechanical strength.
  • the size of the particles used in the blank composition may preferably be 5 to 3,000 nm.
  • dental composite blanks may require physical properties of more than 200 Mpa of biaxial strength and 400 Mpa of compressive strength that can be bridged.
  • the wear and processing time of the instrument during CAM processing may increase, and surface polishing may be difficult.
  • the viscosity of the blank composition becomes high, which makes it difficult to remove bubbles and difficult to process the composite blank.
  • the stabilizer is preferably a phenol-based, phosphate-based stabilizer and the like.
  • the dental composite blank may have a diameter D of 10 to 110 mm, preferably 30 to 110 mm, a height H of 5 to 20 mm, and a hollow diameter d of 5.5 to 20 mm.
  • the diameter (D), height (H) of the composite blank and the diameter (d) of the hollow can be formed in various ways depending on the field of use and purpose.
  • the dental composite blank may be made of a bridge.
  • a bridge is a restoration that is installed so that the function of a tooth is completely impaired and the load of the deleted tooth is compensated for by the teeth on both sides.
  • the molar size of an adult is 10 mm and 10 mm in length and height, respectively, The length may be at least about 30 mm.
  • the height (H) is preferably 5 mm or more
  • the diameter (D) is preferably 10 mm or more, and the diameter (D) for ease of processing in commercially available CAD / CAM equipment. It may be desirable that this is 10 mm or more and 110 mm or less.
  • a blank composition comprising at least one selected from a monomer comprising an unsaturated double bond and an oligomer comprising an unsaturated double bond, a filler, and a polymerization initiator is prepared (step a).
  • step (a) may include removing the bubbles of the blank, but is not limited thereto.
  • the blank composition is filled in a mold in the form of a hollow pillar (step b).
  • the mold may be any one selected from a hollow cylinder, a hollow elliptic cylinder, and a hollow polygonal cylinder as in the form of the dental composite blank described above, and the hollow may be any one selected from a cylinder, an elliptic cylinder, and a polygonal cylinder. have.
  • the hollow polygonal pillars are hollow square pillars, hollow pentagonal pillars, hollow hexagonal pillars, hollow octagonal pillars, hollow octagonal pillars, hollow octagonal pillars, hollow octagonal pillars, hollow rim pillars and hollow twelve pillars. It may be any one selected from each pillar, and the hollow may be any one selected from a square pillar, a pentagonal pillar, a hexagonal pillar, a octagonal pillar, an octagonal pillar, a square pillar, a decagonal pillar, a shim pilgal pillar, and a twelve octagonal pillar.
  • the hollow columnar shape may preferably be in the form of a washer.
  • step (b) may further comprise the step (b ') of removing the bubbles of the blank composition.
  • Step (b ') may be preferably performed by a centrifuge, but is not limited thereto.
  • composition filled in the mold is polymerized and molded into a hollow columnar composite blank to prepare a dental composite blank (step c).
  • the polymerization may be performed by a photopolymerization reaction or a thermal polymerization reaction.
  • the photopolymerization reaction is a radical polymerization reaction of a monomer that is initiated and activated by light
  • the thermal polymerization reaction is a radical polymerization reaction in which radicals are formed by heat.
  • a blank composition was prepared in the composition of Table 1 below.
  • Table 1 ingredient Content (parts by weight) 2,2-bis- (4- (2-hydroxy-3-methacryloyloxypropoxy) phenyl) propane (Bis-GMA) 8.2 Triethylene Glycol Dimethacrylate (TEGDMA) 5.0 Ethoxylate Bisphenol A Dimethacrylate (Bis-EMA) 5.0 Urethane Dimethacrylate (UDMA) 5.0 Barium Aluminosilicate (D50 Size: 1 ⁇ m) 70.0 Amorphous synthetic silica 5.0 Phenolic and Phosphite Mixing Stabilizers 0.1 Polymerization Inhibitor (Butylhydroxy Toluene) 0.1 Camper Quinone 0.3 Ethyl 4- (N, N-dimethylamino) benzoate 0.7 Benzoyl peroxide 0.5 Pigments and fluorescent agents 0.1
  • the hollow cylindrical cylindrical washer composite blank was prepared in the same manner as in Example 1.
  • Example 2 Example 3 Comparative Example 1 Measuring position of blank suburb middle center suburb middle center suburb middle center suburb middle center suburb middle center crack X X X X X X X ⁇ X X Flexural Strength (MPa) 233 234 241 214 221 224 219 198 176 208 193 176 Vickers Hardness (Hv) 93 96 96 91 92 96 91 87 84 79 72 65
  • Composite blanks of Comparative Example 1 showed lower flexural strength and Vickers hardness than Examples 1-3.
  • the composite blank of Comparative Example 1 was also found to have a large difference in physical properties at each position of the outside, the middle, and the center.
  • the plurality of indirect restorations when manufacturing a plurality of indirect restorations in the dental composite blank molded in the form of a hollow column, may provide a dental composite blank having uniform physical properties.
  • according to the present invention can provide a dental composite blank capable of producing a plurality of dental indirect restorations from one dental composite blank, thereby providing an economical dental composite blank.

Abstract

La présente invention concerne une ébauche composite dentaire en forme de colonne creuse ayant un creux à l'intérieur et produite à l'aide d'une composition d'ébauche comprenant : au moins un élément choisi entre un monomère ayant une double liaison insaturée et un oligomère ayant une double liaison insaturée ; une charge ; et un initiateur de polymérisation. L'ébauche composite dentaire selon la présente invention a d'excellentes propriétés physiques uniformes indépendamment de sa position et ne présente pas de fissure, et de multiples restaurations indirectes peuvent être produites à l'aide de l'ébauche composite dentaire.
PCT/KR2014/007882 2014-08-25 2014-08-25 Ébauche composite en forme de colonne creuse pour restaurations dentaires indirectes WO2016032012A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2014/007882 WO2016032012A1 (fr) 2014-08-25 2014-08-25 Ébauche composite en forme de colonne creuse pour restaurations dentaires indirectes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2014/007882 WO2016032012A1 (fr) 2014-08-25 2014-08-25 Ébauche composite en forme de colonne creuse pour restaurations dentaires indirectes

Publications (1)

Publication Number Publication Date
WO2016032012A1 true WO2016032012A1 (fr) 2016-03-03

Family

ID=55399892

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2014/007882 WO2016032012A1 (fr) 2014-08-25 2014-08-25 Ébauche composite en forme de colonne creuse pour restaurations dentaires indirectes

Country Status (1)

Country Link
WO (1) WO2016032012A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021509318A (ja) * 2017-12-28 2021-03-25 ヴェリコム カンパニー リミテッドＶｅｒｉｃｏｍ Ｃｏ．， Ｌｔｄ． 歯科用コンポジットブランク及びその製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060123416A (ko) * 2003-12-31 2006-12-01 쓰리엠 이노베이티브 프로퍼티즈 컴파니 비경화된 자기-지지 경질화성 유기 조성물로부터 치과용장치를 제조하는 방법
KR20100010885A (ko) * 2008-07-23 2010-02-02 이용근 중합 시 부피 수축을 억제하는 효과를 갖는 스타형 아크릴레진 복합물의 조성 및 그에 따른 치과용 콤포짓트레진의제조방법
US20110045436A1 (en) * 1999-01-08 2011-02-24 3M Innovative Properties Company Dental mill blanks
KR20110121363A (ko) * 2010-04-30 2011-11-07 (주) 베리콤 요변성과 주형성이 우수한 치과용 복합체 조성물
KR20120120616A (ko) * 2011-04-25 2012-11-02 (주) 베리콤 디스크 형태의 간접 수복용 컴포지트 레진 블록

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110045436A1 (en) * 1999-01-08 2011-02-24 3M Innovative Properties Company Dental mill blanks
KR20060123416A (ko) * 2003-12-31 2006-12-01 쓰리엠 이노베이티브 프로퍼티즈 컴파니 비경화된 자기-지지 경질화성 유기 조성물로부터 치과용장치를 제조하는 방법
KR20100010885A (ko) * 2008-07-23 2010-02-02 이용근 중합 시 부피 수축을 억제하는 효과를 갖는 스타형 아크릴레진 복합물의 조성 및 그에 따른 치과용 콤포짓트레진의제조방법
KR20110121363A (ko) * 2010-04-30 2011-11-07 (주) 베리콤 요변성과 주형성이 우수한 치과용 복합체 조성물
KR20120120616A (ko) * 2011-04-25 2012-11-02 (주) 베리콤 디스크 형태의 간접 수복용 컴포지트 레진 블록

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021509318A (ja) * 2017-12-28 2021-03-25 ヴェリコム カンパニー リミテッドＶｅｒｉｃｏｍ Ｃｏ．， Ｌｔｄ． 歯科用コンポジットブランク及びその製造方法
JP7186462B2 (ja) 2017-12-28 2022-12-09 ヴェリコム カンパニー リミテッド 歯科用コンポジットブランク及びその製造方法

Similar Documents

Publication Publication Date Title
Taha et al. Assessment of marginal adaptation and fracture resistance of endocrown restorations utilizing different machinable blocks subjected to thermomechanical aging
KR101382382B1 (ko) 디스크 형태의 간접 수복용 컴포지트 레진 블록
Bindl et al. Fracture load of CAD/CAM-generated slot-inlay FPDs.
US20140248584A1 (en) Filled and unfilled organically modified, optionally organically cross-linked silicic acid (hetero) polysilicates as dental materials for chairside treatment
WO2019132595A1 (fr) Ébauche en composite dentaire et son procédé de fabrication
KR101676343B1 (ko) 치과용 임시수복 블랭크 및 그의 제조방법
Simsek et al. In vitro comparative analysis of fracture resistance in inlay restoration prepared with CAD-CAM and different systems in the primary teeth
Rosentritt et al. Zirconia resin-bonded fixed partial dentures in the anterior maxilla.
KR101613097B1 (ko) 치과용 간접 수복을 위한 중공 기둥 형태의 컴포지트 블랭크
Jurado et al. Fracture resistance of chairside CAD/CAM molar crowns fabricated with different lithium disilicate ceramic materials
WO2016032012A1 (fr) Ébauche composite en forme de colonne creuse pour restaurations dentaires indirectes
WO2020262814A1 (fr) Ébauche de composite dentaire et procédé de fabrication associé
WO2021132861A1 (fr) Procédé de fabrication d'une ébauche composite dentaire
Foad et al. Influence of CAD/CAM material and preparation design on the long-term fracture resistance of endocrowns restoring maxillary premolars
Pott et al. Polish of interface areas between zirconia, silicate-ceramic, and composite with diamond-containing systems
Mohammad FRACTURE RESISTANCE OF FOUR DIFFERENT TYPES OF CAD/CAM LITHIUM DISILICATE ENDOCROWNS
WO2022103226A1 (fr) Composition de bloc de résine hybride dentaire et procédé de fabrication d'un bloc de résine hybride dentaire à l'aide de cette dernière
WO2012148015A1 (fr) Bloc de résine composite en forme de disque destiné aux restaurations indirectes
Spiridon-Oumvertos Koutayas et al. Influence of preparation mode and depth on the fracture strength of zirconia ceramic abutments restored with lithium disilicate crowns
KR101228290B1 (ko) 요변성과 주형성이 우수한 치과용 복합체 조성물
Südbeck et al. Bending moment of implants restored with CAD/CAM polymer-based restoration materials with or without a titanium base before and after artificial aging
WO2021206288A1 (fr) Bloc prothétique intégré, à butée découpable et son procédé de fabrication
KR101689535B1 (ko) 복합레진 및 그 제조방법
Alghalayini et al. Fracture load of nano-ceramic composite material for anterior endocrown restorations
Tammam Investigation the effect of restorations fabricated with cad/cam technology, the heat-press technique, and type of resin cement on marginal and internal adaptation of all ceramic crowns

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14900995

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14900995

Country of ref document: EP

Kind code of ref document: A1