WO2018026167A1 - Pointe de traitement endodontique. - Google Patents

Pointe de traitement endodontique. Download PDF

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Publication number
WO2018026167A1
WO2018026167A1 PCT/KR2017/008287 KR2017008287W WO2018026167A1 WO 2018026167 A1 WO2018026167 A1 WO 2018026167A1 KR 2017008287 W KR2017008287 W KR 2017008287W WO 2018026167 A1 WO2018026167 A1 WO 2018026167A1
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WO
WIPO (PCT)
Prior art keywords
root canal
tip
canal treatment
tip portion
outer circumferential
Prior art date
Application number
PCT/KR2017/008287
Other languages
English (en)
Korean (ko)
Inventor
김종곤
김대현
Original Assignee
김종곤
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 김종곤 filed Critical 김종곤
Publication of WO2018026167A1 publication Critical patent/WO2018026167A1/fr

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    • 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
    • A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/20—Power-driven cleaning or polishing devices using ultrasonics
    • 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
    • A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
    • A61C3/03—Instruments operated by vibration
    • 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

Definitions

  • the present invention relates to a tip for the root canal treatment, and in detail, it is made of polyether ether ketone resin, so that it can be bent due to elasticity, so it does not break easily, and can be inserted into the curved portion of the root canal to allow various types of root canal treatment. It relates to a root canal treatment tip configured to.
  • teeth and nerves are damaged by tooth decay, and the number of cases of extraction and implantation of existing teeth is rapidly increasing.
  • the cost of expensive procedures required for implants is not only burdened, but it is also important to keep their teeth as long as possible. For those who want to find ways to make the most of existing teeth without removing them.
  • Root canal treatment also known as neurotherapy, causes pain and sensitive reactions when nerve tissues are inflamed or exposed to pulp tissue by caries or external stimuli, and after removal of the pulp accompanying the pain, By sealing other materials in space, it is a technique to remove pain and maintain the function of teeth.
  • the prior art has the advantage that canal canal treatment using an ultrasonic device generally provided for scaling, cleaning, etc. at the dentist, but when the root portion of the root canal is formed by manufacturing a tip for the canal treatment with a metal alloy There is a problem in that the tip is easily inserted into the fracture.
  • the prior art comprises the steps of providing a molding mixture comprising powder, injecting the molding mixture to integrally form a plurality of tip protrusions protruding from the tip body and the tip body surface to produce an intermediate molded body and the intermediate molded body Including the step of sintering can be improved durability and reliability and there is an advantage that can provide ease of manufacture.
  • the prior art requires a process of injecting and sintering a molding mixture, which makes the manufacturing process complicated, requires equipment and space for performing each manufacturing process, and the elastic force is increased due to the metal powder material included to satisfy the rigidity. There is a problem that it is difficult to produce a tip which is small and has various shapes corresponding to various shapes of the root canal.
  • the present invention has been made in view of the above problems, and because it is made of a polyether ether ketone resin to be bent due to elasticity is not broken well, can be inserted into the curved portion of the root canal can be treated in various forms of root canal To provide a tip for root canal treatment is configured to.
  • a tip for the root canal treatment so that the ultrasound is delivered to the insertion end that can be inserted into the root canal for the root canal treatment it is flexible to be inserted into the curved portion of the root canal
  • a root canal treatment tip comprising at least polyether ether ketone resin (PEEK, Polyetheretherketone).
  • the polyether ether ketone resin is characterized in that it comprises any one of 20 to 40% by weight of glass fibers or carbon fibers.
  • the tip for the root canal treatment characterized in that at least one annular outer peripheral groove is formed on the outer peripheral surface.
  • the ratio of the depth of the outer circumferential groove to the cross-sectional width of the outer circumferential surface on which the outer circumferential groove is located is 0.05 to 0.08.
  • the tip for the root canal treatment characterized in that at least one outer circumferential projection formed on the outer peripheral surface.
  • the ratio of the height of the outer circumferential protrusion to the cross-sectional width of the outer circumferential surface on which the outer circumferential protrusion is located is 0.05 to 0.08.
  • the root canal treatment tip is inserted into the root canal, the tip portion including the insertion end; A body portion connected to an ultrasonic wave generating device so that ultrasonic waves are transmitted to the tip portion; And a bent portion for coupling the tip portion and the body portion, wherein the angle formed by the tip portion and the body portion respectively coupled to both ends of the bent portion is 115 ° ⁇ 4 °.
  • the tip portion is characterized in that it is formed in a tapered form.
  • the present invention has the advantage that can be flexibly inserted into the inside of the root canal bent without rooting during the root canal treatment.
  • the present invention has the advantage that the insertion depth of the tip for root canal treatment can be confirmed.
  • the present invention has the advantage that can be inserted into the root canal to maintain a moderate hardness, while providing a tip for the root canal treatment does not cause damage to the tissue in the soft root canal.
  • the present invention has the advantage that can be made of various types of tips only by machining, it can easily provide a tip for the root canal treatment of various shapes corresponding to the request of the consumer.
  • FIG. 1 is a perspective view of a tip for root canal treatment according to an embodiment of the present invention.
  • Figure 2 is a side view of the tip for root canal treatment according to an embodiment of the present invention.
  • Figure 3 is a schematic diagram of a state of performing a root canal treatment using a tip for root canal treatment according to an embodiment of the present invention.
  • FIG 4 and 5 is a side view of the tip for root canal treatment according to another embodiment of the present invention.
  • Figure 6 is a side view of the tip for root canal treatment according to another embodiment of the present invention.
  • first, second, etc. are used only for the purpose of distinguishing one component from other components.
  • first component may be referred to as the second component
  • second component may also be referred to as the first component
  • FIG. 1 is a perspective view of a root canal treatment tip 10 according to an embodiment of the present invention
  • Figure 2 is a side view of a root canal treatment tip 10 according to an embodiment of the present invention.
  • the tip 10 for root canal treatment is configured to transmit ultrasonic waves to an insertion end insertable into the root canal 24 and FIG. 3 for root canal treatment.
  • the root canal treatment tip 10 is, as shown in Figure 1, the body is connected to the ultrasonic generating device so that the ultrasonic wave is delivered to the tip portion 12 and the tip portion 12 is inserted into the root canal for the root canal treatment It comprises a portion 16 and the bent portion 14 to be coupled to the tip portion 12 and the body portion 16.
  • the bent portion 14 is formed to be bent at an appropriate angle to facilitate the root canal treatment of each tooth (20).
  • the angle (A, FIG. 3) formed by the tip portion 12 and the body portion 16 coupled to both ends of the bent portion 14 bent at the appropriate angle is 115 ° ⁇ 4 °.
  • the tip portion 12 of the root canal treatment tip 10 may be easily accessible to the first molar and the second molar.
  • the body portion 16 may be formed with a coupling portion 18 such that a rotation coupling (for example, screw coupling) with the ultrasonic wave generation equipment inside, for example, female thread of the form of M3.0 x 0.5P It may be provided.
  • a rotation coupling for example, screw coupling
  • the ultrasonic wave generating device may be an ultrasonic wave device having an oscillation frequency of 24 kHz to 42 kHz and an output of 3 W to 60 W, and the threshold of the vibration frequency and the output may be changed.
  • the tip portion 12 of the root canal treatment tip 10 is configured to be very narrow and thin so as to be inserted into the root canal, and is preferably formed in a tapered shape in which the insertion end side is narrow and the other end side is relatively wide.
  • the tip 10 for the root canal treatment, the tip portion 12 and the bent portion 14 and the body portion 16 may be formed to be separated and combined to be used for replacement, for example, the tip portion 12 And the bent portion 14 may be formed integrally and the body portion 16 and the bent portion 14 may be formed in a structure capable of coupling.
  • the root canal treatment tip 10 as another example, the tip portion 12 and the bent portion 14 and the body portion 16 may be integrally formed, the root canal treatment tip 10 is formed in a very small size Therefore, it is preferable to be formed integrally in consideration of the difficulty of separation, bonding, and infection during reuse after disinfection.
  • the root canal treatment tip 10 is flexibly formed to be inserted into a curved portion of the root canal 24 (FIG. 3).
  • a polymer-based synthetic resin may be used, and preferably, such as a metal, it has excellent hardness and tensile strength (for example, 500 MPa or more) and allows for appropriate elastic change (for example, flexural modulus of 2 GPa or more).
  • Engineering plastics may be used.
  • the root canal treatment tip 10 may be made of at least a polyether ether ketone resin (PEEK, Polyetheretherketone).
  • PEEK polyether ether ketone resin
  • the tip for root canal treatment 10 of the present embodiment may be made of 100% polyether ether ketone resin (hereinafter referred to as PEEK).
  • the polyether ether ketone resin (hereinafter PEEK) is a crystalline resin prepared by a solution polycondensation reaction of halogenated benzophenone and hydrokinone.
  • the PEEK is capable of injection molding and extrusion molding in a general processing machine, and has superior strength, heat resistance, and the like, compared to conventional engineering plastics, and thus, machining using a machine such as a CNC milling machine is possible.
  • the root canal treatment tip 10 By making the root canal treatment tip 10 at least including PEEK, the root canal treatment tip 10 can be elastically changed to some extent without being bent or broken too easily, such as the root portion of the root canal (eg, the root canal side of the root canal). Insertion) can be made.
  • the root canal treatment tip 10 including the PEEK is formed of a base material in the shape of a bar or a square material in the form of high-temperature sintering or melting PEEK particles, and the root canal treatment tip 10 using the base material. Forming method will be described together in the method for forming a root canal treatment tip 10 using PEEK mixed with additives described later.
  • the polyether ether ketone resin is 20 to 40 of any one of glass fiber or carbon fiber It is comprised by weight percent.
  • the PEEK may be formed to have a high strength and dimensional stability by adding 20 to 40% by weight, more preferably 30% glass fiber, and when inserted into the root canal (24, Figure 3) 24, FIG. 3) The dimension 26 attached to the inner side can be properly removed through wear.
  • the glass fiber When the glass fiber is included in less than 20%, the strength and dimensional stability improving effect is low, when included in more than 40%, there is a problem that the flexibility and elastic properties are deteriorated.
  • the PEEK is 20 to 40% by weight, more preferably, the PEEK has a wear resistance by adding 30% carbon fiber, is formed to have a high elastic modulus and mechanical strength to be configured to be more robust and not to maintain warpage Can be.
  • the carbon fiber When the carbon fiber is included in less than 20%, the effect of improving the elastic modulus and mechanical strength is low, and when included in more than 40%, there is a problem that the ultrasonic transmission characteristics can be reduced.
  • the glass fiber or carbon fiber may be included in the PEEK in the form of high-temperature sintering or melting after injection into the PEEK and powder, and may be formed in the form of a rod or a horn.
  • PEEK or PEEK mixture (eg PEEK + 30% carbon fiber) base material formed in the form of a bar or a square material is processed using equipment such as CNC, the length of the bite in the state of rotating the PEEK base material, etc.
  • the multi-axis machining method moves closer to the central axis while moving in the direction.
  • the bending of the bent portion 14 is performed through heat treatment, and the heat treatment is further performed after the bending so that the bent portion 14 can be appropriately elastically deformed while maintaining a constant angle (eg, 115 °). Root canal treatment tips 10 are formed.
  • Figure 3 is a schematic diagram of a state of performing the root canal treatment using the tip 10 for root canal treatment according to an embodiment of the present invention.
  • the shape of the root canal 24 is determined by X-ray photographing to check the state of the tooth 20.
  • the cleaning material for cleaning and disinfection is put into the root canal 24 and the tip portion 12 of the tip 10 for root canal treatment is inserted and ultrasonic waves are generated to remove the dimension 26.
  • the washing material may be, for example, sodium chlorate (NaOCl), EDTA (Ethylene Diamine), calcium hydroxide (MT), MTAD can be used, while sterilizing the root canal 24 without altering the teeth 20, It is preferable to use sodium chlorate to remove the remaining decayed dimension 26 by washing to the microscopic area where the root canal treatment tip 10 in the root canal 24 cannot reach.
  • NaOCl sodium chlorate
  • EDTA Ethylene Diamine
  • MTAD calcium hydroxide
  • MTAD calcium hydroxide
  • the crown canal treatment is completed by performing crown prosthetic treatment to safely protect the upper portion 21 of the root canal.
  • FIG 4 and 5 are side views of the root canal treatment tip 10 according to another embodiment of the present invention.
  • At least one annular outer circumferential groove 13 is formed on the outer circumferential surface of the tip 10 for root canal treatment according to another embodiment of the present invention.
  • the tip portion 12 may have a length of 17 mm to 28 mm, and may be differently formed according to the type of the tooth, the position of the tooth, and the oral structure of the patient.
  • the outer circumferential groove 13 is provided to visually determine how inserted the root canal treatment tip 10 is inserted into the root canal 24, for example, when the length of the tip portion 12 is 25mm, Three outer circumferential grooves 13 may be formed at positions 18 mm, 20 mm, and 22 mm from the insertion end.
  • Root canal treatment is performed only within the root canal 24, so it is necessary to know the exact length of the root canal 24 (eg, the length to the root of the root), and the outer groove 13 can be quickly used before using the length measuring equipment or X-ray imaging. It serves as a baseline to allow a rough confirmation of the length of the root canal 24.
  • the ratio of the depth (H) of the outer circumferential groove 13 to the cross-sectional width (D) of the outer circumferential surface where the outer circumferential groove 13 is located, the workability of the outer circumferential groove 13, the degree of recognizability and bending characteristics of the operator In consideration of the configuration is configured to 0.05 to 0.08.
  • the cross-sectional width (D) of the outer circumferential surface means the maximum cross-sectional width of the tip portion 12 at the corresponding position when the tip portion 12 is assumed to be a tapered surface only without the outer circumferential groove (13).
  • the cross-sectional width (D) may be understood to mean a diameter
  • the elastic deformation of the tip portion 12 may be made more easily around the outer circumferential groove 13, the outer circumferential groove 13 may be easily inserted into the curved portion of the root canal 24. It is possible to further provide a proper bend to make.
  • Figure 6 is a side view of the tip for root canal treatment according to another embodiment of the present invention.
  • At least one annular outer circumferential protrusion 13 ′ is formed on the outer circumferential surface of the tip 10 for root canal treatment according to another embodiment of the present invention.
  • the outer circumferential protrusion 13 ′ is provided to visually determine how much the root canal treatment tip 10 is inserted into the root canal 24 similarly to the outer circumferential groove 13.
  • the length of 12 is 25 mm
  • three outer circumferential protrusions 13 ' can be formed at positions 18mm, 20mm, and 22mm from the insertion end.
  • the outer circumferential protrusion 13 ′ is formed to protrude toward the side of the tip part 12, the length of the inserted tip part 12 can be grasped more clearly, and a reference line can quickly and roughly check the length of the root canal 24. Plays a role.
  • the ratio of the height H 'of the outer circumferential protrusion 13 to the cross-sectional width D of the outer circumferential surface where the outer circumferential protrusion 13' is located enters the root canal 24 of the outer circumferential protrusion 13 '. It is configured to be 0.05 to 0.08 in consideration of the ease, processability, and the degree of recognition of the operator.
  • the cross-sectional width D of the outer circumferential surface means the maximum cross-sectional width of the tip portion 12 at the corresponding position when the tip portion 12 is assumed to be a tapered surface only without the outer circumferential protrusion 13 '.
  • the cross-sectional width (D) may be understood to mean a diameter
  • the outer circumferential protrusion 13 ' provides an effect of reinforcing the strength of the tip portion 12, one side around the outer circumferential protrusion 13' of the tip portion 12 is excessively deformed according to the elastic deformation of the tip portion 12. Or it can be prevented from being cut, it can further provide a suitable strength to the tip portion (12).
  • outer circumferential groove 13 and the outer circumferential protrusion 13 ′ may be provided in at least one tip portion 12.
  • an outer circumferential groove 13 is formed at the upper end side (body portion 16 side) of the tip portion 12, and an outer circumferential protrusion 13 'is formed at the lower end side, so that the tip portion having a relatively wide cross-sectional width D is formed. It is configured to further provide the elastic deformation force on the upper end side of the 12 and to more easily grasp the insertion depth of the tip part 12 while further providing the strength on the lower end side of the tip part 12 having a relatively narrow cross-sectional width D. Can be.
  • the position and number of formation of the outer circumferential groove 13 and the outer circumferential protrusion 13 ′ may be adjusted according to the oral structure of the patient, such as the length or shape of the root canal.
  • Tip for the root canal treatment according to each embodiment of the present invention 10 is preferably formed in a suitable dimension (or ratio of dimensions) for easy root canal treatment.
  • the width d2 of the engaging end portion of the tip portion 12 engaged with the bent portion 14 with respect to the width d1 of the insertion end portion is configured to be 3.8 to 4.2.
  • the taper ratio of the tip portion 12 is Since it is not effectively secured, when the tip portion 12 is inserted into the curved portion of the root canal 24, deformation may easily occur at the coupling end side of the tip portion 12, and thus, insertion into the root canal may not be easy.
  • the ratio of the width d2 of the engaging end of the tip portion 12 engaged with the bent portion 14 to the width d1 of the insertion end is configured to be larger than the ratio, the taper of the tip portion 12 Since the ratio is excessively formed, when the tip portion 12 is inserted into the curved portion of the root canal 24, deformation may easily occur at the insertion end side of the tip portion 12, so that insertion into the root canal may not be easy.
  • the ratio of the length h1 of the tip portion 12 to the width d1 of the insertion end is configured to be 99.2 to 100.8.
  • the length of the tip portion 12 is 17mm to 28mm
  • the length h1 of the tip portion 12 with respect to the width d2 of the engaging end of the tip portion 12 engaged with the bent portion 14 The ratio is configured to be 24.8 to 25.2.
  • the length h1 of the tip portion 12 In order to sufficiently insert the tip portion 12 into the root canal 24, it is preferable to form the length h1 of the tip portion 12 not too small. On the contrary, the length h1 of the tip portion 12 is too long. When formed, accurate insertion into the root canal 24 and smooth delivery of ultrasound become difficult.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Dentistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Neurosurgery (AREA)
  • Neurology (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La présente invention concerne une pointe de traitement endodontique. Selon un aspect de la présente invention, l'invention concerne une pointe de traitement endodontique permettant de transmettre des ondes ultrasonores à l'extrémité pouvant être insérée dans le canal radiculaire pour un traitement endodontique. La pointe de traitement endodontique est flexible de manière à pouvoir être insérée dans la partie incurvée du canal radiculaire et comprend, au moins, une résine de polyétheréthercétone (PEEK).
PCT/KR2017/008287 2016-08-01 2017-08-01 Pointe de traitement endodontique. WO2018026167A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0098186 2016-08-01
KR1020160098186A KR101980339B1 (ko) 2016-08-01 2016-08-01 근관치료용 팁

Publications (1)

Publication Number Publication Date
WO2018026167A1 true WO2018026167A1 (fr) 2018-02-08

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Application Number Title Priority Date Filing Date
PCT/KR2017/008287 WO2018026167A1 (fr) 2016-08-01 2017-08-01 Pointe de traitement endodontique.

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KR (1) KR101980339B1 (fr)
WO (1) WO2018026167A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108888375A (zh) * 2018-07-25 2018-11-27 南宁市微牙科技有限公司 牙齿矫正护理装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080248444A1 (en) * 2007-04-04 2008-10-09 Bahcall James K Ultrasonic endodontic tip having a low-modulus of elasticity
KR20080090996A (ko) * 2007-04-05 2008-10-09 이인환 근관치료기의 니들유닛
KR20130051673A (ko) * 2011-11-10 2013-05-21 박병활 신경치료용 핸드피스
KR20140016632A (ko) * 2012-07-30 2014-02-10 연세대학교 산학협력단 근관 크기 측정기구
US20150230902A1 (en) * 2014-02-18 2015-08-20 Panayiotis Andreou Endodontic file for assessing root canal depth

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869792B1 (fr) 2004-05-05 2006-07-14 Satelec Soc Instrument dentaire a ultrasons
JP2007061286A (ja) 2005-08-30 2007-03-15 Manii Kk 根管治療器具
KR100901328B1 (ko) 2008-05-07 2009-06-09 주식회사 쎄타텍 치과 및 의료용 초음파 팁과 그 제조방법
US9078722B2 (en) 2012-01-20 2015-07-14 William B. Johnson Multi-planar pre-curved rotary endodontic file

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080248444A1 (en) * 2007-04-04 2008-10-09 Bahcall James K Ultrasonic endodontic tip having a low-modulus of elasticity
KR20080090996A (ko) * 2007-04-05 2008-10-09 이인환 근관치료기의 니들유닛
KR20130051673A (ko) * 2011-11-10 2013-05-21 박병활 신경치료용 핸드피스
KR20140016632A (ko) * 2012-07-30 2014-02-10 연세대학교 산학협력단 근관 크기 측정기구
US20150230902A1 (en) * 2014-02-18 2015-08-20 Panayiotis Andreou Endodontic file for assessing root canal depth

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108888375A (zh) * 2018-07-25 2018-11-27 南宁市微牙科技有限公司 牙齿矫正护理装置

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KR101980339B1 (ko) 2019-05-20
KR20180014608A (ko) 2018-02-09

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