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WO2013128952A1 - Instrument de traitement de canal radiculaire - Google Patents

Instrument de traitement de canal radiculaire Download PDF

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Publication number
WO2013128952A1
WO2013128952A1 PCT/JP2013/050165 JP2013050165W WO2013128952A1 WO 2013128952 A1 WO2013128952 A1 WO 2013128952A1 JP 2013050165 W JP2013050165 W JP 2013050165W WO 2013128952 A1 WO2013128952 A1 WO 2013128952A1
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WO
WIPO (PCT)
Prior art keywords
optical fiber
root canal
fiber bundle
fibers
optical
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2013/050165
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English (en)
Japanese (ja)
Inventor
高橋　淳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2013128952A1 publication Critical patent/WO2013128952A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/003—Apparatus for curing resins by radiation
    • A61C19/004—Hand-held apparatus, e.g. guns
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/50—Implements for filling root canals; Methods or instruments for medication of tooth nerve channels
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0207—Bristles characterised by the choice of material, e.g. metal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/005—Brushes for applying dental compositions

Definitions

  • the present invention relates to an instrument used for dental root canal treatment.
  • glue material for root canal filling for dental root canal treatment, glue material, gutta percha, silver point, chemical polymerization resin, zinc oxide cement, etc. are used alone or in combination.
  • the abutment is constructed.
  • a root canal treatment instrument which is an instrument for root canal treatment described in Japanese Patent Application Laid-Open No. 2003-144458.
  • This root canal treatment instrument is as shown in FIG.
  • this root canal treatment instrument includes a light diffusing fiber 1001 and a bundled optical fiber 1002 that transmits light, and is used in combination with a suitable light source 2000.
  • This root canal treatment instrument is preferably used in a state where a liquid photopolymerization sealer having a dental adhesive property and polymerized by irradiating light of a predetermined wavelength is applied in the root canal.
  • the tip of the light diffusion fiber 1001 is inserted into the root canal, and light transmitted from the light source 2000 to the light diffusion fiber 1001 through the optical fiber 1002 is photopolymerized from the outer periphery of the light diffusion fiber 1001. Irradiates the sealer.
  • the photopolymerization sealer is cured by light irradiated from the periphery of the light diffusing fiber 1001, and the inside of the root canal is filled with the cured photopolymerization sealer.
  • the above-mentioned root canal treatment instrument is superior in that it does not cause much dead sky at the time of root canal filling by utilizing the curing of the photopolymerization sealer.
  • the above-mentioned root canal treatment device has several difficulties.
  • the difficulty is as follows. 1. In the above-mentioned root canal treatment instrument, it is difficult to completely cure the photopolymerization sealer to the vicinity of the deepest apex of the root canal.
  • the light diffusing fiber 1001 is difficult to propagate light to its tip without loss. Therefore, it is difficult to completely cure the photopolymerization sealer to the vicinity of the deepest apex of the root canal.
  • the light diffusing fiber 1001 in the above-mentioned root canal treatment instrument is required to have characteristics such as low light propagation loss for irradiating light, so that it can be smoothly inserted into the root canal. It is difficult to have. Even if such flexibility is provided, it is necessary to prepare a plurality of light diffusion fibers 1001 having different thicknesses and shapes in order to be used for treatment of root canals having various thicknesses and shapes. Become. This means that it is necessary to prepare a plurality of molds for molding the light diffusion fibers 1001 having various thicknesses and shapes, but the cost is large. This rebounds on the cost of the root canal treatment instrument or treatment performed using it. 3. The above countermeasure 1 is difficult.
  • the conventional root canal treatment including the above-mentioned root canal treatment instrument has the following problems. It is related to the construction of the abutment performed after root canal filling as described above.
  • the construction of the abutment performed after root canal filling by conventional root canal treatment is generally performed by filling the space inside the tooth filled with the root canal with a resin or cement called a core.
  • a core a resin or cement
  • simply filling the internal space of the tooth with the core may cause the core to fall out of the internal space of the tooth or break. Therefore, in many cases, the root canal filled with the root canal is drilled using a peasor reamer, etc., and the hole is made to maintain the post, and the core is supported by the post. It is done to prevent the core from falling off.
  • the support capacity of the abutment increases in proportion to the length of the post, the hole formed in the root canal filled with the root canal becomes deeply deep.
  • drilling using a peasor reamer or the like is good at drilling a straight hole, but is not good at making a curved hole along a curved hole such as a root canal. The work is therefore difficult and requires a high level of attention.
  • the present invention makes it possible to more safely construct an abutment that is performed after root canal filling in root canal therapy, and at the same time, to the vicinity of the deepest apex of the root canal without using a dual cure type sealer. It is an object of the present invention to provide a root canal treatment instrument that can be firmly filled and cured with a photopolymerization sealer and that is more cost-effective than at least using a light diffusing fiber.
  • the root canal treatment instrument of the present invention has a flexible structure as a whole by bundling a plurality of flexible optical fibers, each of which has different lengths, the base ends of which are aligned.
  • the light supplied to the root canal by inserting the optical fiber bundle in a state impregnated with a liquid photopolymerization sealer that is polymerized and cured by irradiating with light of a predetermined wavelength.
  • the polymerization sealer is hardened with the light having the predetermined wavelength irradiated from the distal ends of the plurality of optical fibers through the optical fiber from the proximal end of the optical fiber bundle, and the photopolymerization sealer is hardened. After the base end of the optical fiber bundle so that the can be used as a post.
  • Each of these root canal treatment instruments is a bundle of flexible optical fibers, and includes a flexible optical fire bundle as a whole.
  • This optical fiber bundle is inserted into the root canal and light is irradiated to the photopolymerization sealer from the (basically) tip of each optical fiber.
  • the optical fiber bundle since the optical fiber bundle is flexible, it has a different length.
  • the fact that the optical fiber is included in the optical fiber bundle means that the number of optical fibers constituting the optical fiber bundle decreases as it approaches the tip, so that the flexibility of the optical fiber bundle increases as it approaches the tip. It is easy to insert the bundle to the apex near the back of the root canal. Therefore, this root canal treatment instrument easily irradiates light to the vicinity of the apex at the back of the root canal.
  • the thickness and shape of the optical fiber bundle can be changed by simply changing the length of each optical fiber and the number of optical fibers of each length.
  • the optical fiber bundle in this root canal treatment instrument is a bundle of optical fibers. Therefore, the optical fiber bundle can include a liquid photopolymerization sealer between each optical fiber, just like a brush contains black ink.
  • the optical fiber bundle By inserting the optical fiber bundle into the root canal, It is possible to supply the photopolymerization sealer to the root apex.
  • this root canal treatment instrument makes the treatment of root canal filling using a photopolymerization sealer more practical.
  • the thicknesses of the optical fibers included in the optical fiber bundle are not necessarily the same, but the thickness is selected in such a range that a liquid photopolymerization sealer can be included therebetween.
  • the proximal end side (and fixing means) of the optical fiber bundle integrated with the root canal can be used as a post. There is no need to provide a new post, and there is no need to make a new hole in the root canal.
  • the optical fibers included in the optical fiber bundle include those having different lengths.
  • the cross-sectional shape of the optical fiber bundle is not necessarily circular, and an appropriate shape such as an ellipse can be adopted.
  • how many optical fibers of which length are used can be appropriately selected in relation to the root canal to be treated.
  • the optical fiber bundle As for the said optical fiber bundle, what is located in the center of the many said optical fibers which comprise it, or its vicinity may be made the longest. Thereby, the optical fiber bundle can be formed into a shape having a taper that narrows toward the tip.
  • the optical fiber bundle can be more easily inserted to the root apex of the root canal.
  • the optical fiber bundle may be configured in a brush shape as a whole, with the one positioned at the center of the plurality of optical fibers constituting the optical fiber bundle being the longest and the one being positioned closer to the outer edge being shortened. .
  • the optical fiber bundle can be more easily inserted up to the root apex of the root canal.
  • light is basically applied to the photopolymerization sealer from the tip of each optical fiber.
  • optical fibers each have a core through which light passes and a clad covering the core
  • light is emitted from a desired position of at least some of the clads of the optical fibers.
  • the fixing means may be anything as long as it fixes a large number of optical fibers in the optical fiber bundle in a state where the base ends of the optical fiber bundles, which are a set of base ends of the many optical fibers, are exposed,
  • an adhesive may be used.
  • the fixing means may be a cylinder or a ring formed of a cloth made of fiber, and the optical fiber bundle passing through the inside may be compressed inward.
  • the shape of the optical fiber bundle can be easily maintained.
  • the fixing means may be a string made of fiber, and the optical fiber bundle may be compressed inward while being wound around the optical fiber bundle. By binding with a string, the shape of the optical fiber bundle can be easily maintained.
  • the above-mentioned fibers constituting the cylinder or ring or string may be resin fibers, carbon fibers, or glass fibers. If these are materials, it is easy to reduce the influence on the human body.
  • FIG. 1 The perspective view which shows the structure of the root canal treatment instrument by one Embodiment.
  • Sectional drawing which shows the use condition of the root canal treatment instrument shown in FIG.
  • Sectional drawing which shows the state after performing root canal treatment using the root canal treatment instrument shown in FIG.
  • the perspective view which shows the root canal treatment instrument by a modification.
  • the root canal treatment instrument includes an optical fiber bundle 1 and a fixture 2.
  • the optical fiber bundle 1 is a bundle of many optical fibers 1A.
  • Each of the multiple optical fibers 1A is made of resin and has flexibility.
  • the optical fiber 1A includes ones having different lengths, but their base ends (upper side in FIG. 1) are aligned and flush with each other.
  • a set of proximal ends of the optical fibers 1 ⁇ / b> A is a proximal end 1 ⁇ / b> B of the optical fiber bundle 1.
  • a large number of optical fibers 1A are compressed inward by a cylindrical fixture 2 so that the optical fiber bundle 1 can maintain its shape.
  • the optical fiber 1A is provided with a core and a clad as shown in a general-purpose optical fiber, although not shown.
  • the core is a part that transmits light in the optical fiber 1A
  • the clad is a part that covers the core and prevents light from leaking out of the core due to total reflection or the like.
  • Each optical fiber 1A transmits the light irradiated to the base end in the length direction, and irradiates from the front end.
  • the clad may be removed from some portions of the optical fiber 1A. In this case, a part of the light irradiated to the base end of the optical fiber 1A leaks from the portion where the cladding is removed.
  • each optical fiber 1A may or may not be the same.
  • the characteristics of each optical fiber 1A, such as the ratio of the core and the clad, may or may not be the same.
  • Each optical fiber 1A in the optical fiber bundle 1 includes ones having different lengths as described above.
  • the optical fiber bundle 1 may have a taper such that the optical fiber 1A at the center or the vicinity thereof is the longest and becomes narrower toward the tip as a whole.
  • the one located at the center of many optical fibers 1A is the longest, and more precisely, the one located at the center of many optical fibers 1A is the longest. The closer to the outer edge, the shorter. Thereby, the optical fiber bundle 1 is configured in a brush shape as a whole.
  • the fixture 2 maintains the shape of the optical fiber bundle 1 by compressing the optical fiber 1A in the optical fiber bundle 1 inward as described above.
  • the fixture 2 is formed of a cloth made of fibers.
  • the cloth may be woven or non-woven, and may be knitted.
  • the fibers constituting the cloth can be resin fibers, carbon fibers, or glass fibers, and in this embodiment, the fibers are carbon fibers.
  • the tip of the optical fiber bundle 1 is immersed in a photopolymerization sealer 3 contained in a predetermined container (not shown), and the photopolymerization sealer 3 is placed on the tip side of the brush-like optical fiber bundle 1 as shown in FIG. Include enough.
  • Each optical fiber 1A is preferably thin enough to allow the optical fiber bundle 1 to sufficiently contain the photopolymerization sealer by capillary action, and in this embodiment, it is so.
  • the photopolymerization sealer 3 may be a general one, but in this embodiment, it has tooth adhesion.
  • the root canal 101 is generally a root canal of infected pulp or necrotic pulp, but removal and cleaning of dentin and the like are appropriately performed. Since the optical fiber bundle 1 has a thin tip, it easily reaches the apex 102 at the back of the root canal 101.
  • the photopolymerization sealer 3 included in the optical fiber bundle 1 easily reaches the root apex 102 of the root canal 101.
  • a light source (not shown) is connected to the optical fiber bundle 1.
  • the light source is connected to the base end 1 ⁇ / b> B of the optical fiber bundle 1.
  • the light source may be anything as long as it can irradiate light including light having a wavelength for curing the photopolymerization sealer 3.
  • the light is applied to the photopolymerization sealer 3 from the tip of the optical fiber 1A constituting the optical fiber bundle 1. If the optical fiber 1A has a portion from which the cladding is removed, the light leaking from the portion is irradiated to the photopolymerization sealer 3. Thus, the cured photopolymerization sealer 3 is filled up to the root apex 102 of the root canal 101. At this time, the root canal 101 and the optical fiber bundle 1 are integrated, and as a result, the root canal 101 and the root canal treatment instrument are integrated.
  • the proximal end 1B side of the optical fiber bundle 1 of the root canal treatment instrument is exposed from the surface of the resin 4.
  • the root canal treatment instrument is available as a post.
  • FIG. 1 A modification of the root canal treatment instrument is shown in FIG.
  • the root canal treatment instrument fixture 2 of Modification A has a plurality of rings, and the root canal therapy instrument fixture 2 of Modification B has a plurality of cylinders.
  • the therapeutic instrument fixture 2 is a string wound around the optical fiber bundle 1, and the root canal therapy instrument fixture 2 of Modification D is cylindrical, both of which are connected to the optical fiber bundle 1. Force inward.
  • the fixture 2 of Modification B is made of a resin fiber, carbon fiber, or glass fiber cloth, and the Fixture 2 of Modifications A and C is made of a resin fiber, carbon fiber, or glass fiber string. Yes.
  • the fixture 2 of the modification D is comprised with the glass fiber which impregnated the photopolymerization sealer.
  • the configuration of the fixture 2 may be appropriately designed so that the strength when the root canal treatment instrument functions as a post can be further increased.
  • Left and right can be easily selected using a switch attached to the chassis, and by installing a translucent hood on the side edge, it can be applied to applications where high brightness lighting is required and direct viewing of the input position by the operator is essential. .

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  • 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)
PCT/JP2013/050165 2012-02-29 2013-01-09 Instrument de traitement de canal radiculaire Ceased WO2013128952A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012044181A JP5872928B2 (ja) 2012-02-29 2012-02-29 根管治療器具
JP2012-044181 2012-02-29

Publications (1)

Publication Number Publication Date
WO2013128952A1 true WO2013128952A1 (fr) 2013-09-06

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PCT/JP2013/050165 Ceased WO2013128952A1 (fr) 2012-02-29 2013-01-09 Instrument de traitement de canal radiculaire

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JP (1) JP5872928B2 (fr)
WO (1) WO2013128952A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018011680A1 (fr) 2016-07-11 2018-01-18 Ecole Polytechnique Federale De Lausanne (Epfl) Matériau de remplissage durcissable pour structures tubulaires
EP3501444A1 (fr) * 2017-12-22 2019-06-26 Markus Lietzau Composition de remplissage du canal radiculaire
WO2019122009A1 (fr) * 2017-12-22 2019-06-27 Markus Lietzau Composition de remplissage de canal radiculaire

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015059761A1 (fr) * 2013-10-22 2015-04-30 株式会社ユニックスジャパン Pilier dentaire et matière de résine dentaire
JP2015177874A (ja) * 2014-03-19 2015-10-08 サンメディカル株式会社 歯科用ポストおよびそれを含む歯科治療用キット
JP5758523B1 (ja) * 2014-03-31 2015-08-05 哲明 金藤 クラウン型補綴物の支台築造用グラスファイバー製ポストコア

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JPS62119507A (ja) * 1985-11-20 1987-05-30 Nippon Hoso Kyokai <Nhk> 複数光フアイバ結合型半導体レ−ザモジユ−ルの製造方法
JPH10328197A (ja) * 1997-06-04 1998-12-15 Morita Mfg Co Ltd レーザ医療装置およびこれに用いるレーザプローブ
JP2000024000A (ja) * 1998-07-16 2000-01-25 Morita Mfg Co Ltd レーザプローブ
JP2003135483A (ja) * 2001-11-07 2003-05-13 Morita Mfg Co Ltd レーザープローブ
JP2003525072A (ja) * 1999-06-04 2003-08-26 デンフォテックス・リミテッド 歯根管を充填する方法及び装置
JP2005160865A (ja) * 2003-12-04 2005-06-23 Sun Medical Co Ltd 歯科用光ファイバー、およびそれを含む歯科治療用キット並びに歯科用光重合性組成物の硬化方法
JP2007010918A (ja) * 2005-06-29 2007-01-18 Sumitomo Electric Ind Ltd 光ファイバユニットおよび光ファイバケーブル

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US6595776B2 (en) * 2001-07-10 2003-07-22 Stick Tech Oy Applicator system for dental posts and anchors and use of said applicator system
DE202007014172U1 (de) * 2007-10-10 2009-02-26 Wegold Edelmetalle Ag Modelliervorrichtung für einen strahlungshärtenden Werkstoff
JPWO2009116650A1 (ja) * 2008-03-19 2011-07-21 高橋　淳 ファイバースコープを利用した根管充填システム
JP5828176B2 (ja) * 2009-09-09 2015-12-02 国立大学法人大阪大学 歯科装置

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Publication number Priority date Publication date Assignee Title
JPS62119507A (ja) * 1985-11-20 1987-05-30 Nippon Hoso Kyokai <Nhk> 複数光フアイバ結合型半導体レ−ザモジユ−ルの製造方法
JPH10328197A (ja) * 1997-06-04 1998-12-15 Morita Mfg Co Ltd レーザ医療装置およびこれに用いるレーザプローブ
JP2000024000A (ja) * 1998-07-16 2000-01-25 Morita Mfg Co Ltd レーザプローブ
JP2003525072A (ja) * 1999-06-04 2003-08-26 デンフォテックス・リミテッド 歯根管を充填する方法及び装置
JP2003135483A (ja) * 2001-11-07 2003-05-13 Morita Mfg Co Ltd レーザープローブ
JP2005160865A (ja) * 2003-12-04 2005-06-23 Sun Medical Co Ltd 歯科用光ファイバー、およびそれを含む歯科治療用キット並びに歯科用光重合性組成物の硬化方法
JP2007010918A (ja) * 2005-06-29 2007-01-18 Sumitomo Electric Ind Ltd 光ファイバユニットおよび光ファイバケーブル

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018011680A1 (fr) 2016-07-11 2018-01-18 Ecole Polytechnique Federale De Lausanne (Epfl) Matériau de remplissage durcissable pour structures tubulaires
EP3501444A1 (fr) * 2017-12-22 2019-06-26 Markus Lietzau Composition de remplissage du canal radiculaire
WO2019122009A1 (fr) * 2017-12-22 2019-06-27 Markus Lietzau Composition de remplissage de canal radiculaire
US11964031B2 (en) 2017-12-22 2024-04-23 Markus Lietzau Root canal filling composition

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JP5872928B2 (ja) 2016-03-01
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