WO2010043419A1 - Procédé de fabrication d'une gouttière dentaire multicouche dans un appareil d'emboutissage profond et gouttière dentaire - Google Patents

Procédé de fabrication d'une gouttière dentaire multicouche dans un appareil d'emboutissage profond et gouttière dentaire Download PDF

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Publication number
WO2010043419A1
WO2010043419A1 PCT/EP2009/007480 EP2009007480W WO2010043419A1 WO 2010043419 A1 WO2010043419 A1 WO 2010043419A1 EP 2009007480 W EP2009007480 W EP 2009007480W WO 2010043419 A1 WO2010043419 A1 WO 2010043419A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
thermoforming
thermoforming sheet
deep
hard
Prior art date
Application number
PCT/EP2009/007480
Other languages
German (de)
English (en)
Inventor
Rolf Hinz
Original Assignee
Dr. Hinz-Labor Fachlaboratorium für Kieferorthopädie GmbH & Co. KG
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 Dr. Hinz-Labor Fachlaboratorium für Kieferorthopädie GmbH & Co. KG filed Critical Dr. Hinz-Labor Fachlaboratorium für Kieferorthopädie GmbH & Co. KG
Publication of WO2010043419A1 publication Critical patent/WO2010043419A1/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
    • A61C19/00—Dental auxiliary appliances
    • A61C19/06—Implements for therapeutic treatment
    • A61C19/063—Medicament applicators for teeth or gums, e.g. treatment with fluorides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/56—Devices for preventing snoring
    • A61F5/566—Intra-oral devices
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
    • A63B71/085—Mouth or teeth protectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/06—Implements for therapeutic treatment
    • A61C19/063—Medicament applicators for teeth or gums, e.g. treatment with fluorides
    • A61C19/066—Bleaching devices; Whitening agent applicators for teeth, e.g. trays or strips

Definitions

  • the invention relates to a method for producing a multilayer dental rail in a thermoforming tool. Moreover, the present invention relates to a dental splint.
  • Dental splints are used in orthodontics as bite splints, stretching plates, positioners or retention rails for retention after completion of the active treatment phase, for correction of minor malocclusions or as other removable orthodontic treatment apparatus.
  • Dental splints are used for intraoral protrusion devices for the treatment of obstructive sleep respiratory regulation disorders, which prevent the pharyngeal soft tissue from falling back and thus obstructing the airways by altering the position of the mandible.
  • the protrusion devices In order to absorb the forces occurring during sleep and to ensure the mandibular advancement over the duration of the entire sleep, the protrusion devices require a maximum retention on the teeth. The retention of the devices is achieved through hard-soft thermoforming slides. Additional brackets incorporated into the rail can increase retention.
  • CMD craniomandibular dysfunctions
  • plastic occlusion splints are used.
  • the point of attack of occlusion splints is to cancel the existing contact relationship of the teeth with each other.
  • Other intraoral plastic splints have a carrier function and act as carriers of drugs and fluoride. They facilitate, for example, the application of carbamide or hydrogen peroxide-containing gels in the external bleaching therapy and at the same time prevent rapid rinsing or wiping of the substances by the saliva or the intraoral soft tissues.
  • a protective function is achieved by dental splints when used as compression or dressing plates after surgical interventions or as a mouthguard in some dental trauma endangered sports.
  • thermoforming films are heated in thermoforming machines and shaped on a jaw model made of gypsum.
  • Thermoforming films are available in a wide variety of shapes and sizes as well as in different colors. The film shape depends on the recommended for processing thermoforming device, the thickness of the film according to the intended design form and the application of the rail and is often also dependent on the preferences of the practitioner. From the films, the desired processing form can be punched out, which is applied in the laboratory by heating and by pressure in the desired shape or on the respective model.
  • Various thermoforming devices are used, the differences being among others in the heating and thermoforming technology. A distinction is made between vacuum and compression molding technology.
  • Dental rails made of polycarbonate are known from the prior art, which are characterized by their crystal clear appearance, which also has no discoloration with appropriate care.
  • a disadvantage of the known rails made of polycarbonate is that they are very hard, especially since they are superficially reinforced with acrylic and / or attached to the surface with acrylic auxiliary parts.
  • the known dental splints are mechanically stressed when inserted into the mouth and when removing it from the mouth and while wearing, which can lead to breakage of the dental splint.
  • dental splints which have a two-layer structure, which is formed of a hard carrier layer of polycarbonate and a soft bonded to the carrier layer polyurethane layer.
  • the soft surface facilitates the insertion of the splint and improves the grip on the teeth.
  • the disadvantage here is that after a few months discoloration of the soft polyurethane layer occurs.
  • Supporting or auxiliary elements for example for feed rods of intraoral prion extrusion devices, such as those used for snoring therapy, can be attached to the surface of the carrier layer of polycarbonate with self-curing or light-curing plastics, after the polycarbonate layer has been coated several times with a bonding agent.
  • the object of the present invention is to provide a method for producing a multilayer dental splint which makes possible the simple and cost-effective production of dental splints, wherein the thus available dental splints have improved mechanical properties and are easily integrated and removed by a patient should let.
  • thermoforming a first thermoforming sheet and at least a second thermoforming sheet and optionally at least a third thermoforming sheet are connected to each other by deep drawing on a jaw model, wherein the first thermoforming sheet and the second thermoforming sheet or the third thermoforming sheet has a hard layer of a first plastic material and at least one thermoforming sheet has a soft layer of a second plastic material and wherein the thermoforming sheets are bonded together such that a laminate with a hard outer layer on each of the two outer sides of the dental rail and with a soft between the hard layers embedded inner layer is obtained.
  • the dental splint thus obtained has an at least three-layered construction with two hard outer layers and with a soft inner layer embedded between the hard layers.
  • the dental rail according to the invention may have more than three layers with different hardness, but the two outer layers should have a higher hardness and rigidity than the at least one soft layer in the interior of the dental rail.
  • the properties "hard” and “soft” in the sense of the invention relate to different Shore hardnesses of the layers.
  • the dental splint according to the invention has an increased breaking strength and a better insertion and Auslourungs by increased elasticity of the dental splint, which is effected by the inner soft layer with higher elasticity.
  • the inventive dental splint preferably has a smooth surface on both outer sides, which leads to a reduced plaque infestation.
  • thermoforming film with a hard layer of a polyester Plastic preferably made of polycarbonate (PC) or polyethylene terephthalate (PET), selected.
  • the outer layer of the hard outer layers of the polyester plastic are stable against discoloration and allow a crystal clear appearance of the dental splint according to the invention.
  • the hard layer is sufficiently resistant to fracture, so that a breakage of holding or auxiliary elements, such as anchoring parts for advancing or guiding rods of intraoral Protrusionsellon not to be feared.
  • the dental rail according to the invention preferably has hard layers of the same plastic material.
  • thermoforming sheet having a soft layer of a thermoplastic polyurethane (TPU) or ethylene-vinyl acetate (EVA) is selected.
  • TPU thermoplastic polyurethane
  • EVA ethylene-vinyl acetate
  • thermoforming sheet which has an at least two-layered construction with at least one hard layer and at least one soft layer.
  • the aforementioned thermoforming sheet can then be thermoformed with another thermoforming sheet, which has a preferably single-layer structure with a hard layer, so that a layer composite with two outer hard layers and a soft layer embedded between the hard layers results.
  • a first thermoforming sheet made of polycarbonate and have a single-layer structure. This thermoforming sheet is first deep drawn on a jaw model, so that a single-layer rail is obtained.
  • This rail then initially remains on the jaw model and is connected by deep drawing with a second thermoforming sheet, wherein the second thermoforming sheet may have a two-layer structure with a hard layer of polycarbonate and with a second soft layer of polyurethane.
  • the second thermoforming sheet is placed with the soft layer of polyurethane on the obtained from the first thermoforming sheet of polycarbonate rail and deformed over the first rail and deep drawn on the jaw model, so that there is a three-layer structure.
  • a primer on the first polycarbonate rail are applied to ensure a full-surface connection of the layers. In principle, of course, several slides can be deep-drawn in one operation at the same time on the jaw model.
  • the hard layer of thermoforming film may have a layer thickness of less than or equal to 3.0 mm, preferably from 1.0 to 1.5 mm, more preferably less than or equal to 0.5 mm, in particular from 0.2 to 0.5 mm ,
  • the soft layer may have a layer thickness of 0.5 to 2.0 mm, in particular from 1.0 to 1.3 mm. It should be understood that all intermediate values of the foregoing intervals are disclosed, although not specifically described. Moreover, it is understood that during deep drawing, the layer thickness of the thermoforming sheet is reduced. The layer thicknesses of the thermoforming films used according to the invention ensure very good mechanical properties of the dental splint according to the invention.
  • thermoforming sheet of polycarbonate with a layer thickness of about 0.5 mm is bonded to a two-layer thermoforming sheet by deep drawing, the two-layer thermoforming sheet comprising a hard layer of polycarbonate with a layer thickness of 0, 8 to 1.2 mm and a soft layer of polyurethane with a layer thickness of 1.0 to 1.3 mm.
  • the three-layered dental splint thus obtained has a hard layer on one outer side with a layer thickness of less than 0.5 mm and a second hard layer on the other outer side with a layer thickness of less than 1.2 mm to less than 0.8 mm ,
  • the layer thickness of the soft layer of the dental splint according to the invention is less than 1.3 mm to less than 1.0 mm.
  • the first thermoforming sheet is first deep-drawn onto the jaw model, the resulting single-layer rail then remains on the jaw model.
  • the second thermoforming sheet is then positioned on the jaw model and thermoformed over the first rail on the jaw model, resulting in the composite of the second thermoforming sheet with the previously formed first rail, so that obtained at least two-layer rail becomes.
  • thermoforming sheet for producing the dental splint according to the invention, the two-layered splint formed from the first thermoforming sheet and the second thermoforming sheet remains on the jaw model and then the third thermoforming sheet is positioned on the jaw model and deep-drawn on the two-layered rail on the jaw model , which leads to a dental splint with three layers.
  • the rail obtained by deep-drawing the first deep-drawing film can be at least partially, preferably completely, coated with an acrylate solvent, in particular a preparation of a methacrylic acid methylester (MMA) and dichloromethane become. This improves the bond of thermoforming films during deep drawing.
  • an acrylate solvent in particular a preparation of a methacrylic acid methylester (MMA) and dichloromethane become. This improves the bond of thermoforming films during deep drawing.
  • MMA methacrylic acid methylester
  • At least one holding or auxiliary element can be applied to the surface of the first obtained after thermoforming the first thermoforming foil Rail are attached, wherein, preferably, the surface of the first rail at least partially coated with an acrylate, in particular with a preparation of a methyl methacrylate (MMA) and dichloromethane, and the holding or auxiliary element is attached with a self-polymer.
  • the first rail obtained from the first deep-drawing film remains on the jaw model.
  • thermoforming sheet can then be positioned on the jaw model and deep drawn over the first rail on the jaw model, so that the holding or auxiliary element between the first rail and the second thermoforming sheet is securely embedded and the holding or auxiliary element does not over the surface of the Dental rail according to the invention protrudes and the dental rail has a smooth surface. This also leads to a reduced plaque infestation during days of the rail.
  • Fig. 2 shows schematically the procedure in the production of a dental rail according to the invention in a second embodiment of the method according to the invention
  • FIG. 3 schematically shows the process sequence in the production of a dental rail according to the invention in a third embodiment of the method according to the invention.
  • a method for producing a multilayer dental rail in a thermoforming device is shown schematically.
  • the dental rail produced in this way can be used, for example, for a snore therapy device, as described in DE 203 19 088 U1 or DE 201 02 432 U1.
  • the thermoforming device may, for example, be a universal pressure molding device for all applications of dental thermoforming technology and orthodontics, as marketed under the trade name BIOSTAR® by Scheu-Dental GmbH.
  • a compact printing forme device with the trade name MINISTAR S® of the Scheu-Dental GmbH can be used for the production of the dental splint.
  • thermoforming sheet 1 a first thermoforming sheet 1 and at least one second thermoforming sheet 2 are joined together by deep drawing on a jaw model 3 made of gypsum, wherein the first thermoforming sheet 1 consists of polycarbonate.
  • a polycarbonate thermoforming film with the trade name IMPRELON® "S" of Scheu-Dental GmbH can be used.
  • the thermoforming sheet 1 preferably has a layer thickness of 0.5 mm, but may also have a smaller layer thickness.
  • a wafer-thin insulating film which does not connect to the first thermoforming sheet 1 and is only required for insulation to the jaw model 3, deep-drawn.
  • the first thermoforming sheet 1 is deep-drawn.
  • the film excess of the first splint thus obtained is removed shortly below the equator of the teeth with a milling machine to the final length vestibular and gingival / palatal. separates without the first rail obtained by deep-drawing the first thermoforming sheet 1 is removed from the jaw model 3.
  • the entire surface of the first rail arranged on the jaw model is coated with a bonding agent, with an acrylate solvent, namely a preparation of methyl methacrylate (MMA) and dichloromethane, obtainable under the trade name PERLIBOND® from Scheu-Dental GmbH, being used as adhesion promoter can.
  • an acrylate solvent namely a preparation of methyl methacrylate (MMA) and dichloromethane, obtainable under the trade name PERLIBOND® from Scheu-Dental GmbH, being used as adhesion promoter can.
  • the second thermoforming sheet 2 has a two-layer structure with a hard layer 5 made of polycarbonate and a soft layer 6 of a thermoplastic see polyurethane.
  • the thermoforming sheet 2 is a composite sheet with a hard layer and a soft layer with the trade name DURASOFT® of Scheu-Dental GmbH.
  • the hard layer can be combined with an autopolymer, it being possible to use an autopolymer of Scheu-Dental GmbH with the trade name DURASPLINT®.
  • the hard layer 5 may have a layer thickness of 0.8 mm and the soft layer 6 a layer thickness of 1.0 mm. It is equally possible that the hard layer 5 has a layer thickness of 1.2 mm and the soft layer 6 has a layer thickness of 1.3 mm.
  • thermoforming sheet 2 is then placed with the soft polyurethane layer 6 on the first deep-drawn first thermoforming sheet 1, which is mounted on the jaw model 3, and then deep-drawn on the jaw model 3 on the thermoforming sheet 1.
  • the second thermoforming sheet 2 connects to the first thermoforming sheet 1.
  • the excess film is separated from the resulting three-layer dental splint without the layer composite being removed from the jaw model 3.
  • the dental splint is only then removed from the jaw model 3. Finally, a Smoothing the edges of the dental rail. Further processing or polishing of the dental splint is not provided.
  • FIG. 2 shows an alternative embodiment of a method for producing a multilayer dental splint.
  • the thermoforming sheet 1 of Fig. 1 is connected to a second thermoforming sheet 7, which has only a soft layer 8 of polyurethane.
  • the thermoforming film 1 is first deep-drawn onto the jaw model 3. Subsequently, this first rail thus obtained from the thermoforming sheet 1 remains on the jaw model 3 and it is the second thermoforming sheet 7 deep drawn on the first rail on the jaw model 3, so that a two-layer rail is obtained.
  • at least one holding or auxiliary element can be embedded between the thermoforming film 1 and the thermoforming film 7.
  • the excess film of each rail obtained by forming the thermoforming sheets 1, 7, 9 is removed before thermoforming of the next deep-drawing sheet 7, 9, without the rail being detached from the jaw model 3.
  • a coating of the previously obtained rail may be provided with a bonding agent.
  • FIG. 3 shows that a three-layered dental splint according to the invention can also be obtained in a single-stage deep-drawing process by deep-drawing a deep-drawing foil 11 having a three-layered structure with two outer hard layers 12, 13 made of polycarbonate and one between the hard layers 12, 13 embedded soft layer 14 of polyurethane has up.
  • the layer thickness of the hard layer 10, 12 of the thermoforming films 9, 11 corresponds to the layer thickness of the hard layer 5 of thermoforming film 2. This results from a comparison of Figures 1 to 3.
  • the layer thicknesses of the hard layer 13 of the thermoforming film shown in Figure 3 11 corresponds to the layer thickness of the hard layer 4 of the thermoforming film 1 from FIG. 1.
  • the layer thickness of the soft layer 8 of the second deep-drawing film 7 from FIG. 2 and the layer thickness of the soft layer 14 of the deep-drawing film 11 from FIG. 3 correspond to the layer thickness of the soft layer 6 of the deep-drawing film 2 from FIG. 1.
  • thermoforming of the first thermoforming sheet 1 an insulating film for gypsum / plastic can be raised as a blank sheet on the jaw model 3.
  • an insulating film with the trade name ISOFOLAN® the Scheu-Dental GmbH can be used. The insulating film can be removed from the dental rail in a simple manner after the production of the dental splint.

Abstract

L'invention concerne un procédé de fabrication d'une gouttière dentaire multicouche dans un appareil d'emboutissage profond. Il est prévu selon l'invention qu'une première feuille à emboutir (1) et au moins une deuxième feuille à emboutir (2, 7) et éventuellement au moins une troisième feuille à emboutir (9) soient reliées les unes aux autres par emboutissage profond sur un modèle de mâchoire (3) dans un appareil d'emboutissage profond. La première feuille à emboutir (1) et la deuxième feuille à emboutir (2, 7) ou la troisième feuille à emboutir (9) comprennent une couche dure (4, 5, 10) en une première matière plastique et au moins une feuille à emboutir (2, 7) comprend une couche souple (6, 8) en une deuxième matière plastique et les feuilles à emboutir (1, 2, 7, 9) sont reliées ensemble de manière à obtenir une couche composite avec une couche extérieure dure (4, 5, 10) sur chacun des deux côtés extérieurs et avec une couche intérieure souple (6, 8) incorporée entre les couches dures (4, 5, 10).
PCT/EP2009/007480 2008-10-17 2009-10-19 Procédé de fabrication d'une gouttière dentaire multicouche dans un appareil d'emboutissage profond et gouttière dentaire WO2010043419A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102008051792.5 2008-10-17
DE102008051792 2008-10-17
DE102008054111.7 2008-10-31
DE102008054111 2008-10-31
DE102008061325A DE102008061325A1 (de) 2008-10-17 2008-12-11 Verfahren zur Herstellung einer mehrschichtigen Dentalschiene in einem Tiefziehgerät und Dentalschiene
DE102008061325.8 2008-12-11

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Publication Number Publication Date
WO2010043419A1 true WO2010043419A1 (fr) 2010-04-22

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DE (1) DE102008061325A1 (fr)
WO (1) WO2010043419A1 (fr)

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CN102125704A (zh) * 2010-09-16 2011-07-20 刘昊仁 新型高分子聚合物医疗用夹板
DE102011113694A1 (de) 2011-09-20 2013-03-21 Topas Advanced Polymers Gmbh Dentalschienen, deren Herstellung und deren Verwendung
DE102017209403A1 (de) 2017-06-02 2018-12-06 Sirona Dental Systems Gmbh Herstellungsverfahren für ein dentales Hilfsmittel aus einer thermoplastischen Kunststofffolie oder -platte
WO2018222864A1 (fr) 2017-05-31 2018-12-06 Bay Materials, Llc Appareil dentaire à double enveloppe et constructions de matériau
KR20190128118A (ko) 2018-05-07 2019-11-15 엘리덴트 게엠베하 치아 부목을 제조하기 위한 장치
US10973613B2 (en) 2012-05-14 2021-04-13 Align Technology, Inc. Multilayer dental appliances and related methods and systems
US10987907B2 (en) 2017-05-31 2021-04-27 Bay Materials, Llc Dual shell dental appliance and material constructions
CN115052743A (zh) * 2019-12-18 2022-09-13 巴伊材料公司 双壳牙科器具和材料构造
WO2023081903A1 (fr) * 2021-11-05 2023-05-11 Smylio Inc. Procédé de formation d'un appareil buccal
US11717382B2 (en) * 2018-10-11 2023-08-08 HIT Health Intelligent Technologies AG Orthodontic or dental appliance

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DE202010010769U1 (de) * 2010-07-28 2010-12-09 Scheu-Dental Gmbh Dentales Tiefziehmaterial
DE102010037075B3 (de) * 2010-08-19 2012-01-26 Steffen G. Tschackert Zahnschiene, Verfahren zu deren Herstellung und Verwendung
US10011050B2 (en) 2011-10-12 2018-07-03 Ormco Corporation Fabrication of an orthodontic aligner from a negative mold designed by a computational device
US10383704B2 (en) 2011-10-12 2019-08-20 Ormco Corporation Direct manufacture of orthodontic aligner appliance
EP2581062A3 (fr) * 2011-10-12 2015-07-22 Ormco Corporation Fabrication directe d'un aligneur orthodontique
DE202013001392U1 (de) 2013-02-14 2013-04-09 Scheu-Dental Gmbh Dentalschiene mit äußerer TPU-Schicht
JP2016523612A (ja) 2013-06-04 2016-08-12 フランツ, ドナルドFRANTZ, Donald 歯科用器具システムおよび製造方法
DE102014108727B4 (de) 2014-06-23 2016-03-24 Technische Universität Dresden Beschichtete Erzeugnisse für den oralen Bereich, Verwendung und Beschichtungsverfahren für Chitosan
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

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DE102011113694A1 (de) 2011-09-20 2013-03-21 Topas Advanced Polymers Gmbh Dentalschienen, deren Herstellung und deren Verwendung
US20220338957A1 (en) * 2012-05-14 2022-10-27 Align Technology, Inc. Multilayer polymer sheets
US11648090B2 (en) * 2012-05-14 2023-05-16 Align Technology, Inc. Multilayer polymer sheets
US11576753B2 (en) 2012-05-14 2023-02-14 Align Technology, Inc. Multilayer dental appliances and related methods and systems
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