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WO2004049967A1 - Article moule a usage dentaire et procede de moulage de l'article - Google Patents

Article moule a usage dentaire et procede de moulage de l'article Download PDF

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Publication number
WO2004049967A1
WO2004049967A1 PCT/JP2003/014488 JP0314488W WO2004049967A1 WO 2004049967 A1 WO2004049967 A1 WO 2004049967A1 JP 0314488 W JP0314488 W JP 0314488W WO 2004049967 A1 WO2004049967 A1 WO 2004049967A1
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WO
WIPO (PCT)
Prior art keywords
molded article
model
molding
dental
resin
Prior art date
Application number
PCT/JP2003/014488
Other languages
English (en)
Japanese (ja)
Inventor
Masato Ueno
Original Assignee
Masato Ueno
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 Masato Ueno filed Critical Masato Ueno
Priority to JP2004570720A priority Critical patent/JPWO2004049967A1/ja
Publication of WO2004049967A1 publication Critical patent/WO2004049967A1/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
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/08—Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch
    • 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
    • A61C13/10—Fastening of artificial teeth to denture palates or the like
    • 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
    • A61C13/20—Methods or devices for soldering, casting, moulding or melting
    • A61C13/206—Injection moulding
    • 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
    • A61C9/002—Means or methods for correctly replacing a dental model, e.g. dowel pins; Dowel pin positioning means or methods

Definitions

  • the present invention relates to a dental molded article for producing a mouse speed or a denture, an apparatus for maintaining a denture, and the like, which are mounted in an oral cavity, and a molding method thereof.
  • mouse guards sports mouse sports (usually referred to as mouse guards) have been reviewed. It has become widespread throughout the sporting field, for example, in non-contact sports such as kendo, the use of a mouse is encouraged. With this tendency, the jaw and teeth protection function by the mouse speed is further improved, and the form accuracy is reduced to minimize the feeling of discomfort when wearing. A high mouse speed is required.
  • Such a mouse with high morphological accuracy is a technique in which a dentist makes impressions of the upper and lower jaws of a user (sports player), creates a plaster model, and uses this model as a technician.
  • One of the methods is to make mouse pieces.
  • Mouse speeds are also used to protect teeth in sports, treat jaw joint disorders and occlusal disorders (called splints), Mouse for filling with bleaching agent during bleaching (bleaching teeth whitening) to prevent squeaks and snoring Used as a piece, a mouse piece for orthodontics, etc.
  • Mouse speed is used as a generic term for those used in various applications.
  • Patent Document 1 butene-1- ⁇ -olefin copolymer
  • Patent Document 1 a polyolefin-based thermoplastic elastomer
  • Patent Document 3 a cross-linked product obtained by cross-linking an ethylene-olefin-gene copolymer
  • Patent Document 4 a thermoplastic lactone resin
  • Patent Document 5 discloses a hydrogenation reaction of a ring-opening polymer of tetracyclododecene or a ring-opening polymer of tetracyclododecene and norbornane.
  • the invention discloses a liquid crystal reflex polymer comprising a polymer obtained as a constituent component, and states that such a material is suitable for the above optical material.
  • ⁇ has been widely used as a material for dentures (denture base and artificial teeth).
  • ⁇ Methyl methacrylate (hereinafter referred to as ⁇ ) monomer solution is mixed with the powder and kneaded to form a rice cake, which is then filled into a molding space that is made of plaster jaw and filled with hot water. It is heated inside and polymerized and hardened to create a denture base.
  • the artificial tooth also has a similar shape.
  • the artificial tooth formed from this material is embedded in a plaster jaw model in advance, and is fixed to the denture base when it is hardened.
  • dental metal such as palladium alloy is conventionally used as a device for maintaining a local denture, for example, as a bar or a class.
  • Patent Literature 1 Japanese Patent Application Laid-Open No. 3-1888884 Patent Document 2 Japanese Patent Application Laid-Open No. Hei 3 — 2 4 4 8 0
  • Patent Document 3 JP-A-3-2 0 1 1 1 1
  • Patent Document 4 Patent No. 25199984
  • Patent Document 5 Japanese Patent Publication No. 2 — 9 6 1 9 Disclosure of the Invention
  • the most widely and practically used mouse speed material for sports is the simple mouse speed (the softness of the soft water when softened by the user. In the mouth, put it in the mouth, cover the teeth, and mold it yourself), EVA force, or high-precision mouse speed (manufactured by dentists and technicians) )
  • EVA has a low softening temperature (70-80 ° C)
  • the polyolefin thermoplastic elastomer has a softening temperature of usually 100 ° C or higher, and is not easily deformed and has excellent durability such as tensile strength.
  • the material is suitable as a mouse speed material, since the material itself is stable in a danimatic manner, there are some types of adhesion to other materials. There is a problem that it is difficult to remove resin material.
  • the occlusal surface and the upper part of the gums on the labial side should be used to enhance the protection of teeth and minimize discomfort in the oral cavity.
  • the two-layer structure (called the laminate structure), in which only the part is covered with a thin hard material layer and the lingual and gum parts are covered with a soft material, is becoming established as a general structure.
  • the polyolefin thermoplastic elastomer is made of a material of another material. Because of the poor adhesion, no suitable material was found, and a rigid material was selected from among the polyolefin thermoplastic elastomers. Manufactured from materials It is the present situation.
  • orthodontic appliances that treat malocclusions and malocclusions have a metal bracket fixed to the surface of the tooth with an adhesive, pass through a wire, and apply pressure or tension in a predetermined direction to the tooth.
  • a method of gradually moving the teeth is used, but this method has the problem that the tooth enamel melts with the adhesive and damages the teeth .
  • PMMA powder When preparing a denture base, PMMA powder is mixed with MMA monomer liquid to form a rice cake and filled into a gypsum mold, but the MMA monomer is harmful to living organisms. Problem. In addition, metal claps and the like have an aesthetic problem because the metal part can be seen from the outside when the mouth is opened.
  • the present invention has been made based on such a background, and as a result of examining various molding materials, has been developed as an optical material. They have found that mars are extremely effective as dental moldings for making mouse speeds, dentures and denture maintenance devices. Means to solve the problem
  • the present invention (Claim 1) is characterized in that the dental molded product is a cyclorefin polymer resin, a cyclorefin polymer resin and a polyolefin resin. It is a mixture of a fin-based thermoplastic elastomer resin or a mixture of a cycloolefin polymer resin and EVA. Cyclo-refined polymer resin has a low moisture absorption Even in the cavity, there is almost no deformation due to water absorption, and the hardness is high and the strength is sufficient. Polyolefin-based thermoplastic elastomer resin and EVA are both soft and elastic, and are compatible with cycloolefin polymer resin.
  • the elasticity and hardness of the cycloolefin polymer resin alone and the polyolefin-based elastomer can be improved because of the good compatibility. It can be arbitrarily adjusted between the elasticity and hardness of the stoma resin or EVA.
  • the dental molded article according to the present invention (claim 2) is a molded article for producing a mouse speed.
  • Cycloolefin polymer resin is a hard resin and is thermally welded to a polyolefin-based thermoplastic elastomer and EVA.
  • the molded product may be a mixture of a cyclorefinomer resin and a polyolefin-based thermoplastic elastomer resin, or a cycling resin.
  • the use of a mixture of polymer resin and EVA reduces the hardness of the molded product, imparts soft elasticity, and provides a mouse with a hard-soft two-layer structure.
  • the hardness of the hard layer can be reduced in a range that is harder than the soft layer, and conversely, the hardness of the soft layer can be increased.
  • a mouse mouthpiece for printing or a mouthpiece for treatment of temporomandibular arthrosis can be produced by using a slim mouth refin polymer resin alone.
  • the above-mentioned molded article has sufficient properties as a material for a straightening tool together with hardness and strength.
  • orthodontics it is necessary to constantly apply a pressing force to the teeth in the direction of orthodontics.
  • cyclorefin polymer With a material mixed with Elastomer resin or EVA it is possible to obtain an elastic pressing force constantly applied to the teeth.
  • the dental molded article according to the present invention is a denture base.
  • molded articles for producing artificial teeth are a thermoplastic resin with good moldability, so when manufacturing dentures, injection molding or press molding is used. High-precision molding is performed.
  • the molded body may be a mixture of a cyclorefin polymer resin and a polyrefin-based thermoplastic elastomer resin or a cycloreflection resin. By using a mixture of the polymer resin and EVA, the hardness of the molded body is reduced and the softened layer is imparted by providing soft elasticity. If the denture is formed on the surface of the denture base that is in contact with the gums, a denture base that adheres closely to the gums can be produced.
  • a dental molded product according to the present invention (claim 4) is a molded product for a device for maintaining a local denture.
  • the dental molded article according to the present invention (claim 5) is a molded article for a dental orthodontic device.
  • a rigid cyclo-refin polymer resin that forms the main part of the mouse speed to form a skeleton, and has elasticity in the part that corrects teeth, for example, the part that presses and presses teeth. Is formed by applying a pressure to the teeth by forming a polyolefin-based thermoplastic elastomer resin or EVA that has teeth and moving and straightening the teeth. is there.
  • a method for molding a dental molded article according to the present invention comprises a gypsum model placed on a table, a cycloolefin polymer resin, and a cyclone resin.
  • a mixture of a low-refined polymer resin and a poly-refined thermoplastic elastomer resin, or a cyclo-refined polymer resin A step of supporting a sheet-shaped molded body made of any of the EVA mixtures in a chamber at a distance, a step of heating and softening the molded body, and a step of heating and softening the molded body.
  • the compact is coated on the model in a vacuum state, and the outside of the compact is exposed to a pressurized atmosphere of atmospheric pressure or higher in the absence of air between the compact and the model. It is pressed and formed.
  • the molded body can obtain high molding accuracy by vacuum suction from the inside and pressurization from the outside. Also, air is prevented from remaining between the compact and the model.
  • the method for forming a dental molded body according to the present invention is characterized in that the plaster model is a jaw model and the mouse body for covering the forehead model with the molded body is formed. It is something to be done.
  • the molding material is filled even in a narrow space such as an hourglass-shaped space in the interdental region.
  • the undercut portion, such as the hourglass-shaped void portion ensures the maintenance of the mouse teeth on the teeth.
  • the method for molding a dental molded article according to the present invention (Claim 8) is characterized in that the gypsum model is a model having a concave portion on its surface corresponding to the shape of the device for maintaining a local denture.
  • the maintenance device is formed by filling the body into the recess. In such a method, a transparent maintenance device is produced by the molded body.
  • FIG. 1 is a plan view showing a mouse mouse for breaching.
  • FIG. 2 is a front view showing a state in which a mouse wheel for breaching is attached to a tooth.
  • FIG. 3 is a sectional view taken along line AA of FIG.
  • FIG. 4 is a plan view showing the laminated structure mouse speed.
  • Fig. 5 is a cross-sectional view taken along line BB (front teeth) of Fig. 4 in a state where the laminated structure mouse teeth are mounted on the teeth.
  • Fig. 6 is a cross-sectional view taken along the line C-C (molar part) of Fig. 4 in a state in which the mouse body with the laminated structure is attached to the teeth.
  • FIG. 7 is a cross-sectional view for explaining a molding process using a mouse speed molding machine.
  • FIG. 8 is a cross-sectional view for explaining a molding process using a mouse speed molding machine.
  • FIG. 9 is a cross-sectional view for explaining a molding process using a mouse speed molding machine.
  • FIG. 10 is a cross-sectional view for explaining fabrication of a denture by press molding.
  • FIG. 11 is a cross-sectional view for explaining the production of a denture by press molding.
  • FIG. 12 is a perspective view showing a molded body used for producing a denture (press molding).
  • FIG. 13 is a cross-sectional view for explaining the production of a denture by injection molding.
  • FIG. 14 is a perspective view showing a molded article used for producing a denture (injection molding).
  • FIG. 15 is a perspective view for explaining the production of a device for maintaining a local denture.
  • FIG. 16 is a cross-sectional view taken along line DD of FIG.
  • FIG. 17 is a cross-sectional view corresponding to FIG. 16 when the bar is removed.
  • FIG. 18 is a cross-sectional view showing a state after molding by a molded sheet.
  • FIG. 19 is a perspective view showing a class and a bar.
  • Figure 20 shows an oblique view of a model for making orthodontic mouse speeds.
  • FIG. 21 is a perspective view of the model for explaining the movement of the model tooth in the orthodontic direction.
  • FIG. 22 is a perspective view of the model for explaining the movement of the model tooth in the orthodontic direction.
  • FIG. 23 is an enlarged perspective view of a main part of FIG.
  • FIG. 24 is a perspective view showing a state in which the correction mouse speed is mounted on a model.
  • FIG. 25 is a cross-sectional view showing a state in which the orthodontic mouse piece is attached to the patient's teeth, and corresponds to a cross section taken along line E-E in FIG.
  • FIG. 26 is a plan view showing a gypsum model for producing another orthodontic mouse speed.
  • FIG. 27 is a perspective view of a plaster model of a tooth to be corrected.
  • FIG. 28 is a cross-sectional view taken along the line FF of FIG. 27, showing the structure after mouse speed molding.
  • FIG. 29 is a side cross-sectional view showing a state in which the mouse speed is attached to a patient's chin.
  • FIG. 30 is a cross-sectional plan view showing a state in which the mouse speed is attached to the patient's chin.
  • Cyclorefin polymer is a resin such as cyclopentane, dicyclopentadiene, tetracyclodecene, etc.
  • glass fibers, reinforcing fillers, and the like are mixed in advance into the molded body made of the cyclorefin polymer resin, so that the mechanical Strength can be improved.
  • reference numeral 1 denotes a mouse wheel (for upper jaw) for bleaching made of cyclorefin polymer resin.
  • This mouse space 1 is formed in a state where the surface of the teeth of the plaster jaw model is covered with a box of a predetermined thickness, and as shown in FIGS.
  • a gap S having a predetermined width corresponding to the thickness of the wax sheet is formed between the inner surface of the mouse 1 and the surface of the teeth 2.
  • the mouse speed 1 is cut along the gum line L, and the gap S is closed at this portion.
  • the gap S is filled with the jelly-like bleaching agent 3.
  • the gap S is formed only on the front surface of the tooth. However, when the lingual surface of the tooth 2 is also bleached, a gap is formed on the lingual surface to be filled with the drug.
  • Figures 4, 5, and 6 show the mouse structure (for the upper jaw) 4 with a laminated structure, which is rigid and covers the teeth 2 in close contact with the occlusal and lingual sides. It comprises a layer 5 and a soft layer 6 covering the hard layer 5, covering the occlusal surface and the side of the tooth 2, and extending to the contralateral gum.
  • Fig. 5 ' shows the mounting state in the anterior teeth
  • Fig. 6 shows the mounting state in the molars.
  • the hard layer 5 forms the inner layer
  • the soft layer 6 forms the outer layer.
  • the hard layer 6 is designed so as not to enter the undercut portion of the tooth 2. This is because if a hard material enters the undercut portion, it is difficult to attach and detach the undercut to and from the teeth 2.
  • the hard layer 5 may have a structure in which the tongue side is cut off.
  • the hard layer 5 has a flat U-shape as a whole, and is hard to open in the left-right direction. Therefore, even if the hard layer 5 is configured to be in contact with only one side of the tooth 2, a retaining force is obtained. is there. With such a structure, it is possible to further reduce the uncomfortable feeling when the mouse speed 4 is attached.
  • the undercut portion U such as the hourglass gap is soft Layer 6 material is filled. As described above, if the undercut portion U is filled with the material of the hard layer 5, the mounting of the mouse speed 4 becomes difficult. By inserting a soft material into such an undercut portion U, the mounting strength of the mouse teeth 4 to the teeth 2 is improved.
  • the hard layer 6 is formed of a cycloolefin polymer resin
  • the soft layer 6 is formed of a polyolefin thermoplastic elastomer, and both are thermally welded. It is possible.
  • the dental material consisting of a polyrefin-based thermoplastic elastomer is available under the trade name Morteno (registered trademark, manufactured by Morten Medical Co., Ltd.). Commercially available ones can be used, and their hardness (JISA) is about 60.
  • Reference numeral 7 denotes a releasable chamber, which is composed of an upper chamber 8 and a lower chamber 9, which are superposed to form a sealed space.
  • Reference numeral 10 denotes a table disposed in the lower channel 19, which is connected to the piston 12 of the air cylinder 11 mounted on the lower portion of the channel 19. Connected and drive up and down.
  • Reference numeral 13 denotes a porous plate fixed to the surface of the table 10, and a small space 14 is formed below the porous plate.
  • Reference numeral 15 denotes an air-and-pipe that connects the small space 14 and a vacuum pump 16 provided outside the chamber 17.
  • Reference numeral 17 denotes a plaster work model detachably mounted on the porous plate 13.
  • the upper jaw model is used because the upper frame 4 is manufactured. Is done.
  • Reference numeral 18 denotes a mouse-speed molded sheet (hereinafter abbreviated as a sheet) that is generally installed between the upper chamber 8 and the lower chamber 19.
  • the hard layer 5 is made of a cyclorefin polymer resin sheet.
  • the sheet 18 is formed in a disk shape with a thickness of about 1 to 2 mm.
  • the undercut portion of the jaw model 17 was filled with silicone putty or the like to close the undercut, and the hard layer was closed.
  • the structure shown in Fig. 5 is such that no undercut portion is formed.
  • Reference numeral 19 denotes a pair of dental gypsum models (in the present case, lower jaw models) which are attached to and detached from the ceiling of the upper chamber 8.
  • Reference numeral 20 denotes a heater mounted inside the upper chamber 18 and above the sheet 18 and heats and softens the sheet 18.
  • Reference numeral 21 denotes an air passage formed on the side wall of the upper and lower chambers 189, and connects the upper chamber space 22 and the lower chamber space 23 separated by a sheet 18. It passes through. The air passage 21 communicates with an air compressor 25 via a knob 24. 26 is a heat reflection plate.
  • the air cylinder 11 is driven to raise the table 10, and the work model 17 is applied to the sheet 18 to deform the sheet 18 while the table is deformed.
  • table 10 stops at the highest position the space enclosed by table 10 and sheet 18 (the space including working model 17 and small space 14) is the outer chamber. One space 2 2, 2 3 is cut off.
  • the knob 24 is opened, and air is blown into the channel 7 from the air compressor 25 to create a pressurized atmosphere of 1 atm or more.
  • the space surrounded by the table 10 and the sheet 18 and the small space 14 in the table are maintained in a vacuum state by driving the vacuum pump 16.
  • the sheet 18 is sucked in vacuum from the inside (the work model 17 side), and simultaneously pressurized from the outside, and adheres to the work model 17 to be formed (Fig. 9). ).
  • the inside of the chamber 7 is returned to the atmospheric pressure, the sheet 18 is cooled, and an undercut portion and unnecessary peripheral portions are cut off.
  • the speed hard layer 5 (FIGS. 5 and 6) is formed.
  • the air compressor 25 is also used as a driving means of the air cylinder 11.
  • the model 17 With the mouse-speed hard layer 5 attached to the working model 17, the model 17 is placed on the table again and enters the second molding process (the state shown in Fig. 7). ).
  • This step is the same as the first molding step, except that the polyolefin resin sheet 18 is replaced with a polyolefin-based thermoplastic resin.
  • a disc-shaped sheet (last thickness 1 to 5 mm, usually about 2 mm) of a resin is used. That is, the sheet is placed between the upper and lower chambers 8 and 9 and heated and softened by the heater 20 as described above, and then the table 10 is raised to cover the hard layer 5. Then, it is formed simultaneously with heat welding.
  • the mating tooth model 19 comes into contact with the surface of the soft layer 6 (FIGS. 5 and 6) as described above, and the occlusal surface is marked.
  • the adhesive unnecessary portions of the two layers 5 and 6, for example, the lingual surface of the hard layer 5 is coated with a separating agent in advance, and after molding, the portion of the soft layer 6 separated from the hard layer 5 is cut off. .
  • discomfort when mounting the mouse speed is reduced.
  • the molding accuracy is extremely high, and the soft material can be used even in narrow narrow spaces such as drum-shaped voids. Will be filled.
  • the inside of the chamber 7 is returned to the atmospheric pressure, the mouse speed 4 is cooled, and the periphery is cut off.
  • the soft layer 6 made of a polyolefin-based thermoplastic elastomer covers the hard layer 5 made of a stiff refrigerated polymer, Brackets and welds form an integral laminated structural mouse speed. After cooling, unnecessary parts are cut off and the cut surface is polished to complete the mouse speed 4.
  • Laminate structure mouse speed 4 is particularly effective when used as a sports mouse speed.
  • the impact applied to hard layer 5 via soft layer 6 is hard layer. 5
  • the impact is dispersed over the entire surface and the impact is dispersed and applied to all the teeth. This suppresses accidents in which the teeth are concentrated locally and the part of the tooth breaks or comes off.
  • the hard layer 5 is hard to come off once attached to the teeth due to its hardness, and improves the attachment strength to the teeth.
  • the soft layer 6 absorbs and alleviates the impact, and at the same time, makes it easier to mount the mouthpiece 4 in the oral cavity, and penetrates into the undercut portion U such as a drum-shaped space. And mouse speed 4 that cannot be easily removed.
  • a mouthpiece minimizes the lingual part which is not necessary for tooth protection and minimizes discomfort, and the part requiring protection is made up of two hard and soft layers.
  • the high protection function is exhibited in a state where it is kept low, which makes it possible to realize a much better mouse speed than the conventional single-layer mouse speed.
  • a polyolefin-based thermoplastic elastomer is used as the material of the soft layer 6, but EVA may be used in addition to this. Wear. EVA can also be heat-welded to a hard layer made of cycloolefin polymer resin.
  • a solution prepared by dissolving EVA in toluene or cyclohexan is applied to the surface of a hard layer made of cycloolefin polymer resin in advance.
  • the adhesive strength is improved.
  • the mouse speed 1 for bleaching (Figs. 1 to 3) is made of a single layer of cycloreflomer polymer resin. In this case, a thin molded body sheet having a thickness of about 0.5 to 1.0 mm is used.
  • the mouse speed 1 does not need to protect the teeth, but only the action of keeping the drug 3 in contact with the teeth 2. Due to the thin layer, it is elastically deformed like non-equipment and can be attached to the teeth 2.
  • the molding method using the molding machine described above is also suitable for producing the mouse speed 1 for bleaching. This is because the precision molding enables the medicine-filled space S to be a sealed space, thereby preventing the leakage of the medicine 3.
  • the bleaching agent 3 has a bleaching action, and if it comes in contact with the gums, there is a danger of inflammation of the mucosal surface. Therefore, mouse speed 1 must be structured so that drug 3 contacts the teeth only.
  • precision molding allows parts other than the drug-filled space S to be tightly attached to the teeth 2, so that the mouse space 1 is securely fixed to the teeth without getting loose In this way, it is possible to prevent the leakage of the medicine 3 from this point.
  • the ease of attachment to the teeth and the maintainability are improved by the mouse space in the lingual hourglass space.
  • cyclorefin polymer resin is hard, so it does not deform even under the application of some external force, and has the advantage that the drug does not leak easily. There is.
  • the hard layer made of this resin is used as the outside, and the above-mentioned poly-refin elastomer resin is used.
  • the occlusal force can be reduced by forming a two-layer structure with the inner soft layer as the inner layer. Furthermore, a three-layer structure in which a hard layer is embedded inside a soft layer is also possible.
  • the anti-snoring mouse speed is a pair of mouse speeds attached to the upper and lower jaws, and the lower jaw is pushed slightly forward by the lower jaw speed to widen the airway. It is done.
  • This effect depends on the shape of the occlusal surface of the upper and lower teeth, and specifically, separate cyclorefine points are formed on a single-layer mouse wheel. This is achieved by heating and softening the immersion resin sheet with hot air, etc., and pressing it to the required location to adjust the occlusion. Also, when the mouse speed is damaged or the shape is modified, the above sheet can be heated and softened and repaired and refilled.
  • FIGS. 10 and 11 show a method of press-molding a denture made of cycloolefin polymer resin.
  • a model 33 having a space 32 matching the jaw shape with plaster is made between a pair of flasks 30 and 31.
  • Reference numeral 34 denotes an artificial tooth formed of cyclorefin polymer resin, which is buried in the plaster model 33.
  • a molded body 35 made of heat-softened cyclorefinpolymer resin is sandwiched between them, and Fig. 11 shows As shown in the figure, overlap the two flasks 30 and 31 and fasten the mold. It is then cooled and taken out of the plaster model 33 to remove the glue and grind it.
  • a denture base 36 made of cyclorefin polymer resin is formed.
  • the artificial teeth 34 are integrated by the anchor structure.
  • the molded body 35 can be formed into a horseshoe shape having a shape substantially corresponding to the ridge.
  • Fig. 13 shows the injection molding method for dentures made of cyclorefin polymer resin.
  • a model 3 3 having a space 32 matching the shape of the jaw made of gypsum was created between a pair of flasks 30 and 31 by the conventional method.
  • 37 is a sprue that leads to the molding space.
  • Reference numeral 38 denotes a part of a cylinder of the injection molding machine, and a cyclorefin polymer resin heated and melted from the cylinder 38 is pressed with a resin 39. Then, the molding space 32 is filled.
  • Reference numeral 40 denotes a heater arranged around the cylinder 38.
  • the molded body 35 can be formed in a cylindrical shape that can be easily inserted into the cylinder 38. This injection molding method can also be used for producing artificial teeth 34.
  • the denture base is formed by the cyclorefin polymer, which is used as a lining material on the surface in contact with the ridge.
  • the denture base is formed by the cyclorefin polymer, which is used as a lining material on the surface in contact with the ridge.
  • FIGS. 15 to 19 show the production process of a maintenance device, for example, a class 50 or 51, in which the above-mentioned vacuum press molding machine is used.
  • the base material of Class 50 and No. 51 is a dental photopolymerization resin, for example, Light Pattern (registered trademark, manufactured by Multiten Medical Co., Ltd.). It is manufactured by irradiating with light and cured. These preparations are performed by a usual method.
  • These base materials are placed on the surface of the plaster 53 in a flowing state filled with rubber poles 52, and are slightly pressed to be buried in a state that cannot be buried. .
  • the surface where the class 50 and the bar 51 are in contact with the teeth is the lower side (the surface embedded in the gypsum) (Fig. 16).
  • a groove 54 corresponding to the shape of the class 50 and the shape of the piece 51 is formed on the surface of the gypsum model 53.
  • the gypsum model 53 has a rubber bowl 52 or not. And is placed on the porous plate 13 (FIG. 7) of the table 10 of the above-mentioned molding machine, as a molded article sheet.
  • Mer resin sheet 18 is used. The sheet 18 is brought into close contact with the surface of the gypsum model 53 by vacuum and pressure molding, and is filled into the clasping and bar forming grooves 54 (Fig. 18). After cooling the sheet 18, the sheet is cut out along the forming groove 54 of the clasping 50 and the nose 51 (FIG. 18, arrow P), and the gypsum model 53 is removed. It is removed and polished to complete a transparent glass 50, No. 51.
  • FIG. 20 Next, the orthodontic mouse speed will be described with reference to FIGS. 20 to 25.
  • an impression is taken of the patient's upper jaw with an alginate impression material or a silicone impression material, for example, and a gypsum model 60 is made based on the impression. .
  • the metal pin 61 is buried under the tooth to be corrected.
  • the lower surface of the two front teeth is buried with a metal pin 61, and the periphery is cut off.
  • a hook 62 is formed.
  • the tooth block 62 includes a tooth portion 63 and a rectangular parallelepiped gum portion 64.
  • a base 65 made of gypsum is formed under the model 60 and fixed to the model 60.
  • a hole 66 corresponding to the pin 61 is formed in the base 65, and the tooth block 62 is formed so that the pin 61 is inserted into the hole 66.
  • the original position is reproduced.
  • the part shown by the broken line 67 (Fig. 22) of the gum part 64 of the tooth block 62 is cut off, and the pin 61 (Fig. 22) is centered.
  • the tooth portion 63 is slightly rotated in the correction direction, and the gap 68 between the model 60 and the tooth block 64 is filled with hexagons.
  • the broken line a indicates the position of the tooth before the correction (the position shown in FIG. 21), and the solid line indicates the position after the correction. In the illustrated example, the case of correcting two front teeth is shown, but the same operation is performed for all the teeth to be corrected.
  • a mouse piece 69 is formed as shown in FIG.
  • the orthodontic mouthpiece 69 is formed so as to surround all teeth.
  • This mouthpiece 6 9 is often used except for the occlusal surface Occlusal surfaces can also be formed if the upper and lower teeth are in opposing occlusion and if an occlusal lift is required to correct this.
  • the mouthpiece 69 when the formed mouthpiece 69 is attached to the patient's jaw, the mouthpiece 69 causes a gentle elastic force in one direction on the tooth 70 (arrow b). Acts. At this time, a gap 71 is open on the other surface of the tooth 70. The teeth 70 gradually move due to the elastic force of the mouthpiece 69.
  • the tooth portion 6 3 (FIG. 22) of the orthodontic model 60 is moved again in the orthodontic direction to bring the tooth row closer to a normal state.
  • a second mouthpiece 69 is formed. This is used in place of the first mouthpiece 69 and attached to the patient's chin, and further correction is performed.
  • the mouthpiece 69 can be remodeled in accordance with the progress of the correction. Usually, about 10 to 20 mouthpieces are required before the correction is completed.
  • a thin sheet of polyolefin-based thermoplastic elastomer resin or EVA was applied to the pressed part. And increase the pressure. In this way, malocclusion or malocclusion is corrected.
  • the teeth do not dissolve due to the adhesive, and the orthodontic treatment can be performed without causing any damage to the teeth.
  • FIG. 26 it is assumed that the tooth 72 to be corrected is rotated about the fulcrum P by applying pressure to the point Q.
  • a mouthpiece 74 that covers the entire surface of the tooth is formed with a cycloolefin polymer resin by using the plaster model 73 obtained by taking an impression from the patient and forming the same by the method described above.
  • a space 76 is formed on the tongue side of the tooth 72 of the created mouthpiece 74 by waxing the wax 75 thinly on the tongue side of the tooth.
  • a groove 77 is dug in the Q position of the tooth 72 of the plaster model 73.
  • the part of the mouthpiece 74 corresponding to the Q position is deleted, and a hole 78 is opened.
  • the mouthpiece 7 4 is fitted into the model 73, and the above-mentioned molding machine is used.
  • a sheet of a polyolefin-based thermoplastic elastomer is put on a mouthpiece 74 made of a cycloolefin polymer resin, and both are welded to form a mouthpiece having a two-layer structure.
  • the outer layer ⁇ 9 made of a polyolefin-based thermoplastic elastomer is filled in the groove 7 7 through the hole 8 7 ⁇ formed in the mouthpiece 7 7 ⁇ of the inner layer, and the elongated ridge 8 is formed.
  • the inner layer made of hard cycloolefin polymer-resin only covers the natural teeth 81, and the outer layer of soft polyolefin-based thermoplastic elastomer Layer 79 is formed to extend further and cover the gums.
  • the natural tooth 81 is elastically pressed by the ridge 80, and the natural tooth 81 is rotated around the fixed fulcrum P and is corrected. Since the space ⁇ 6 is formed on the lingual side of the natural tooth 81 to which the ridge 80 hits, the rotation of the natural tooth 81 is not hindered.
  • the polyolefin-based thermoplastic elastomer of the outer layer 79 is formed on the teeth 72 by using a single-layer mouthpiece 74 made of cycloolefin polymer resin without using the above-mentioned molding machine. It is also possible to adopt a structure in which an overheated and softened mass of a polyolefin-based thermoplastic elastomer is pressed against and adhered to a hole 78 formed in a portion corresponding to the groove 77. According to such an orthodontic method, unlike the above-described orthodontic method, there is no need to perform a plaster cutting operation of each tooth and an operation of fixing to the base with a pin, and so it is possible to perform the orthodontic treatment more easily.
  • the mouthpiece 69 is typically made of a cycloolefin polymer resin for a single-layer mouthpiece, or a cycloolefin polymer resin and a polyolefin thermoplastic elastomer resin for a laminating structure.
  • EVA can be used as a material for forming the hard layer and the soft layer, respectively. However, the hardness of the hard layer or the soft layer can be further finely adjusted. In this case, a polyolefin-based thermoplastic elastomer resin or EVA can be used in combination with a stiff mouth refin polymer resin. These adjustments are made according to the intended use, conditions and symptoms.
  • a portion in contact with a tooth is formed of a soft elastic material so as to surround the tooth, and a skeleton portion is made hard to maintain a shape and increase strength.
  • the mixing ratio of the cycloolefin polymer resin and the polyolefin-based thermoplastic elastomer resin or EVA is such that the ratio of the polyolefin-based thermoplastic elastomer resin or EVA to the cycloolefin polymer resin is from 0. It is mixed in the range of about 50% by weight. In order to have a function as a skeleton and maintain hardness and strength, at least 50% by weight of cycloolefin polymer resin is required. Since the molded body of the correction mouthpiece 69 may have to be considerably thick, a thick one may be prepared from the beginning, and for example, a rectangular parallelepiped of 3 cm x 3 cm x 8 cin may be used.
  • the dental molded article is made up of a cycling resin, a cyclorefin polymer, and a resin. Because it can be either a mixture of a olefin-based thermoplastic elastomer resin or a mixture of a shiny refrigerated polymer resin and EVA, When the chromophore polymer resin alone is used as a denture or mouse speed, it is hardly deformed by water absorption when it is installed in the oral cavity, and high molding precision is achieved. It is maintained for a long time, and good mounting performance can be maintained.
  • a molded article may be a mixture of a cyclorefin polymer resin and a polyrefin-based thermoplastic elastomer resin, or a cycle mouth resin.
  • a mixture of a polymer resin and EVA is used, elasticity and softness can be imparted.
  • a mouse speed or a breathing speed for treatment of temporomandibular arthrosis can be produced.
  • the mouse speed can be made more sophisticated.
  • cyclorefin polymer resin is thermally fused to a polyolefin-based thermoplastic elastomer resin.
  • a mouse structure with a laminated structure in which the rim resin layer is used as a hard layer and the polyolefin thermoplastic elastomer is used as a soft layer can be manufactured and installed. It can improve the safety and protection function, and reduce discomfort when worn.
  • a mixture of a cyclorefin polymer resin and a polyolefin-based thermoplastic elastomer resin, or a cyclorefin polymer By using a mixture of Rima resin and EVA, the hardness and elasticity of each of the hard layer and the soft layer of the laminated structure mouse speed are adjusted. can do.
  • a denture base and an artificial tooth can be formed relatively easily by injection molding or press molding, and high molding accuracy can be obtained. Can be done.
  • a device for maintaining a local denture for example, a glass or a transparent resin, a cyclone resin, a cyclone A mixture of a refrigeration polymer resin and a polyolefin thermoplastic elastomer resin, or a mixture of a cyclorefin polymer resin and EVA Since they can be formed by the body, any of them can be made of a transparent body, and the wearing of the local denture is not conspicuous, so that the aesthetic improvement can be achieved.
  • the molded article can be formed of a viscous thermoplastic material because high molding accuracy can be obtained by vacuum suction from the inside and pressurization from the outside. Even resin can be filled even into narrow and narrow voids, enabling precision molding. In addition, since air remains between the molded product and the model, air bubbles are not mixed in the molded product.
  • cyclorefin polymer resin is a polystyrene thermoplastic elastomer and EVA that has been awarded as a mouse speed material.
  • the two layers of the laminated structure are used for heat dissipating, and the impact distribution by the hard layer, the shock absorption by the soft layer,
  • the maintenance of the tooth by the layer can be significantly improved as compared with the conventional one.
  • the sports mouse even when the sports mouse does not come into contact with the opponent, the sports mouse has a higher occlusal pressure by raising the bite and has the effect of increasing the instantaneous power. Is also effective.
  • the cyclorefin polymer which forms the hard layer is used for the polyrefin heat.
  • a plastic elastomer or EVA can be mixed to reduce its hardness and to provide elasticity, depending on the intended use, use conditions or symptoms. It can be adjusted to a lower hardness.
  • the device for maintaining the clamps, bars, and the like is made of a transparent body, a local denture is worn when the mouth is opened. This makes it difficult to understand, and can improve the aesthetics of the denture.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Preparations (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un article moulé constitué d'une résine de polymère cyclo-oléfinique, d'un mélange de résine de polymère cyclo-oléfinique et d'une résine d'élastomère thermoplastique à base de polyoléfine ou d'un mélange de résine de polymère cyclo-oléfinique et d'EVA. L'article moulé est destiné à être utilisé pour la confection de bases de prothèse, de dents artificiels, de supports dentaires partiels et d'appareils dentaires. Un procédé de moulage de l'article moulé consiste à: monter sur support un modèle en plâtre et un article moulé constitué d'une résine de polymère cyclo-oléfinique disposés sur une table, dans une chambre, à distance l'un de l'autre; ramollir l'article moulé par chauffage; évacuer l'air de la chambre par aspiration; soulever ladite table en vase clos pour habiller le modèle avec l'article moulé et isoler de l'extérieur l'espace entre l'article moulé et la table; et introduire de l'air dans la chambre tout en maintenant l'espace en vase clos avant de mouler par pressage la feuille d'article moulé à l'intérieur du modèle, à pression élevée.
PCT/JP2003/014488 2002-12-02 2003-11-13 Article moule a usage dentaire et procede de moulage de l'article WO2004049967A1 (fr)

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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006081747A (ja) * 2004-09-16 2006-03-30 Osaka Univ バイトスプリントの製造方法
JP2006095245A (ja) * 2004-08-31 2006-04-13 Masato Ueno 無呼吸症候群又はいびき症改善用のマウスピース
WO2009001565A1 (fr) * 2007-06-27 2008-12-31 Nihon University Protection dentaire et son procédé de production
JP2009201916A (ja) * 2008-02-29 2009-09-10 Tetsuji Yamanouchi 歯列矯正装置及びその製造方法
JP2009284985A (ja) * 2008-05-27 2009-12-10 Panasonic Electric Works Co Ltd 歯科漂白用マウスピースおよびその製造方法
JP2010501261A (ja) * 2006-08-23 2010-01-21 デンツプライ インターナショナル インコーポレーテッド 多層シートから熱成形された歯科用器材
JP2010155103A (ja) * 2010-03-08 2010-07-15 Osaka Univ バイトスプリントの製造方法
WO2011122898A3 (fr) * 2010-04-01 2012-03-15 경희대학교 산학협력단 Instrument de chirurgie orthognathique
WO2012153765A1 (fr) * 2011-05-09 2012-11-15 Ueda Tomokazu Embout buccal multicouche, procédé de fabrication et dispositif de fabrication de celui-ci
JP2013183941A (ja) * 2012-03-08 2013-09-19 Gikou:Kk 歯列補正具
WO2014017645A1 (fr) * 2012-07-26 2014-01-30 Otsuka Atsushi Dispositif orthodontique
KR101476715B1 (ko) * 2014-08-22 2014-12-26 홍경재 투명 교정 장치
KR101493369B1 (ko) * 2013-08-09 2015-02-13 경희대학교 산학협력단 마우스 가드
KR101497493B1 (ko) * 2013-11-05 2015-03-12 경희대학교 산학협력단 치아에 피착되는 가철식 덴탈기구 및 그 제조방법
KR101506599B1 (ko) * 2013-09-25 2015-03-27 경희대학교 산학협력단 치아 보호기
KR20160128625A (ko) * 2015-04-29 2016-11-08 경희대학교 산학협력단 마우스피스 제조방법 및 이를 이용한 마우스피스
KR101701789B1 (ko) * 2016-03-24 2017-02-02 (주)현창치과기공소 틀니 제작용 재료 혼합방법 및 그 장치
WO2017038444A1 (fr) * 2015-09-05 2017-03-09 株式会社東洋建工 Embout buccal de repas
CN107773343A (zh) * 2016-08-31 2018-03-09 深圳绵福健康科技有限公司 下颌多位调止鼾器
CN107773344A (zh) * 2016-08-31 2018-03-09 深圳绵福健康科技有限公司 下颌微调止鼾器
CN107773342A (zh) * 2016-08-31 2018-03-09 深圳绵福健康科技有限公司 定向外调止鼾器
CN107789113A (zh) * 2016-08-31 2018-03-13 深圳绵福健康科技有限公司 滑动内调止鼾器
JP2018094245A (ja) * 2016-12-15 2018-06-21 岡本化学工業株式会社 歯科矯正用アライナー及びその製造方法
JPWO2017038444A1 (ja) * 2016-01-24 2018-11-08 株式会社東洋建工 ミールマウスピース
US10258431B2 (en) 2014-08-22 2019-04-16 Kyung Jae HONG Transparent aligner and method for manufacturing same
JP2020137707A (ja) * 2019-02-27 2020-09-03 淳一 高本 審美用マウスピースの製造方法
JP2021030072A (ja) * 2019-08-19 2021-03-01 株式会社ＵＬＴＩ−Ｍｅｄｉｃａｌ 口腔接触部が軟らかい義歯およびその製造方法
JP2021108753A (ja) * 2020-01-07 2021-08-02 株式会社CephMedical 舌骨挙上用マウスピースの提供システム
WO2023193142A1 (fr) * 2022-04-06 2023-10-12 许汉忠 Procédé de formage sous vide pour substance de type membrane contenant un corps de structure saillant et son dispositif de formage

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JPS5538172A (en) * 1978-09-12 1980-03-17 Minoru Nishiyama Dental plastic body
JPH055111U (ja) * 1991-07-03 1993-01-26 株式会社モルテン マウスピース成形器
JPH05317411A (ja) * 1992-05-21 1993-12-03 Nippon Zeon Co Ltd 医療用器材
JPH0759798A (ja) * 1993-08-26 1995-03-07 Makoto Watanabe オクルーザルスプリント
WO1998058596A1 (fr) * 1997-06-20 1998-12-30 Align Technology, Inc. Procede et systeme de repositionnement progressif des dents

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006095245A (ja) * 2004-08-31 2006-04-13 Masato Ueno 無呼吸症候群又はいびき症改善用のマウスピース
JP2006081747A (ja) * 2004-09-16 2006-03-30 Osaka Univ バイトスプリントの製造方法
JP2010501261A (ja) * 2006-08-23 2010-01-21 デンツプライ インターナショナル インコーポレーテッド 多層シートから熱成形された歯科用器材
JP5413777B2 (ja) * 2007-06-27 2014-02-12 学校法人日本大学 マウスガード及びマウスガードの製造方法
WO2009001565A1 (fr) * 2007-06-27 2008-12-31 Nihon University Protection dentaire et son procédé de production
JPWO2009001565A1 (ja) * 2007-06-27 2010-08-26 学校法人日本大学 マウスガード及びマウスガードの製造方法
JP2009201916A (ja) * 2008-02-29 2009-09-10 Tetsuji Yamanouchi 歯列矯正装置及びその製造方法
JP2009284985A (ja) * 2008-05-27 2009-12-10 Panasonic Electric Works Co Ltd 歯科漂白用マウスピースおよびその製造方法
JP2010155103A (ja) * 2010-03-08 2010-07-15 Osaka Univ バイトスプリントの製造方法
WO2011122898A3 (fr) * 2010-04-01 2012-03-15 경희대학교 산학협력단 Instrument de chirurgie orthognathique
KR101129111B1 (ko) 2010-04-01 2012-03-23 경희대학교 산학협력단 악교정 수술기구
WO2012153765A1 (fr) * 2011-05-09 2012-11-15 Ueda Tomokazu Embout buccal multicouche, procédé de fabrication et dispositif de fabrication de celui-ci
JP2013183941A (ja) * 2012-03-08 2013-09-19 Gikou:Kk 歯列補正具
WO2014017645A1 (fr) * 2012-07-26 2014-01-30 Otsuka Atsushi Dispositif orthodontique
KR101493369B1 (ko) * 2013-08-09 2015-02-13 경희대학교 산학협력단 마우스 가드
KR101506599B1 (ko) * 2013-09-25 2015-03-27 경희대학교 산학협력단 치아 보호기
KR101497493B1 (ko) * 2013-11-05 2015-03-12 경희대학교 산학협력단 치아에 피착되는 가철식 덴탈기구 및 그 제조방법
KR101476715B1 (ko) * 2014-08-22 2014-12-26 홍경재 투명 교정 장치
US10258431B2 (en) 2014-08-22 2019-04-16 Kyung Jae HONG Transparent aligner and method for manufacturing same
KR20160128625A (ko) * 2015-04-29 2016-11-08 경희대학교 산학협력단 마우스피스 제조방법 및 이를 이용한 마우스피스
KR101697226B1 (ko) 2015-04-29 2017-01-17 경희대학교 산학협력단 마우스피스 제조방법 및 이를 이용한 마우스피스
WO2017038444A1 (fr) * 2015-09-05 2017-03-09 株式会社東洋建工 Embout buccal de repas
JPWO2017038444A1 (ja) * 2016-01-24 2018-11-08 株式会社東洋建工 ミールマウスピース
KR101701789B1 (ko) * 2016-03-24 2017-02-02 (주)현창치과기공소 틀니 제작용 재료 혼합방법 및 그 장치
CN107789113A (zh) * 2016-08-31 2018-03-13 深圳绵福健康科技有限公司 滑动内调止鼾器
CN107773342A (zh) * 2016-08-31 2018-03-09 深圳绵福健康科技有限公司 定向外调止鼾器
CN107773344A (zh) * 2016-08-31 2018-03-09 深圳绵福健康科技有限公司 下颌微调止鼾器
CN107773343A (zh) * 2016-08-31 2018-03-09 深圳绵福健康科技有限公司 下颌多位调止鼾器
JP2018094245A (ja) * 2016-12-15 2018-06-21 岡本化学工業株式会社 歯科矯正用アライナー及びその製造方法
JP2020137707A (ja) * 2019-02-27 2020-09-03 淳一 高本 審美用マウスピースの製造方法
JP7288655B2 (ja) 2019-02-27 2023-06-08 淳一 高本 審美用マウスピースの製造方法
JP2021030072A (ja) * 2019-08-19 2021-03-01 株式会社ＵＬＴＩ−Ｍｅｄｉｃａｌ 口腔接触部が軟らかい義歯およびその製造方法
JP7352290B2 (ja) 2019-08-19 2023-09-28 株式会社ULTI-Medical 口腔接触部が軟らかい義歯およびその製造方法
JP2021108753A (ja) * 2020-01-07 2021-08-02 株式会社CephMedical 舌骨挙上用マウスピースの提供システム
WO2023193142A1 (fr) * 2022-04-06 2023-10-12 许汉忠 Procédé de formage sous vide pour substance de type membrane contenant un corps de structure saillant et son dispositif de formage

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