WO2015001933A1 - 歯科治療装置 - Google Patents
歯科治療装置 Download PDFInfo
- Publication number
- WO2015001933A1 WO2015001933A1 PCT/JP2014/065554 JP2014065554W WO2015001933A1 WO 2015001933 A1 WO2015001933 A1 WO 2015001933A1 JP 2014065554 W JP2014065554 W JP 2014065554W WO 2015001933 A1 WO2015001933 A1 WO 2015001933A1
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- WIPO (PCT)
- Prior art keywords
- dental treatment
- treatment device
- vibration
- optical system
- flow path
- Prior art date
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Classifications
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- 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
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/0046—Dental lasers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/062—Photodynamic therapy, i.e. excitation of an agent
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0624—Apparatus adapted for a specific treatment for eliminating microbes, germs, bacteria on or in the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
- A61L2/186—Peroxide solutions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0601—Apparatus for use inside the body
- A61N5/0603—Apparatus for use inside the body for treatment of body cavities
- A61N2005/0606—Mouth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/063—Radiation therapy using light comprising light transmitting means, e.g. optical fibres
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/067—Radiation therapy using light using laser light
Definitions
- the present invention relates to a dental treatment device used for prevention and treatment of periodontal disease in dental practice.
- periodontal disease an inflammatory disease caused by the propagation of pathogenic bacteria in the periodontal pocket, so-called periodontal disease, has become a problem.
- cleaning (cleaning) of calculus and dental plaque by a dental scaler using ultrasonic vibration has been carried out.
- an autoclave apparatus is used to disinfect and sterilize bacteria.
- an object to be sterilized and sterilized is immersed in a high-pressure and high-temperature liquid for several tens of minutes to perform sterilization.
- the tartar removal / disinfection device of Patent Document 1 As a device capable of performing the above-described cleaning and disinfection / sterilization at the same time, the tartar removal / disinfection device of Patent Document 1 is known.
- calculus removing / disinfecting device calculus is pulverized by ultrasonic vibration, and at the same time, a disinfecting solution is supplied from the tip and irradiated with light to generate hydroxy radicals for sterilization. Yes.
- the laser light generated by the light source a is condensed by the condensing lenses b and c and transmitted through the disinfectant in the flow path d. .
- the laser beam is scattered by the disinfectant and greatly attenuated to reach the tip f of the vibration part e.
- an object of the present invention is to provide a dental treatment device in which the attenuation of the laser beam hardly occurs.
- a dental treatment apparatus is a dental treatment apparatus for removing tartar or plaque and disinfecting teeth, and a vibration unit that vibrates by a vibrator that generates ultrasonic vibrations.
- a chip part connected to the vibration part to transmit the ultrasonic vibration, a flow path for releasing the bactericide from the chip part, and a laser beam for photolyzing the bactericide from the chip part.
- an optical system having an optical path separated from the flow path.
- the dental treatment device of the present invention is a dental treatment device that removes tartar or plaque and disinfects teeth.
- This dental treatment device includes a vibration part that vibrates by a vibrator that generates ultrasonic vibrations, a chip part that is connected to the vibration part and transmits ultrasonic vibrations, and a flow path for releasing a bactericidal agent from the chip part And an optical system for irradiating a laser beam for photodegrading the bactericide from the tip portion, and an optical system having an optical path separated from the flow path.
- This configuration makes it difficult for the sterilizing agent to scatter laser light, so that the sterilizing agent can be efficiently photodecomposed by irradiating a high-intensity laser beam from the tip of the tip portion.
- the dental treatment apparatus 1 of the present Example includes a cover 10 that covers the vibration unit 2, the flow path 4, and the optical system 5 (see FIG. 2).
- the tip portion 3 is detachably attached to the tip of the cover 10. Using this tip part 3, removal of tartar or plaque and disinfection / sterilization are performed.
- the dental treatment apparatus 1 Since the dental treatment apparatus 1 is held by the operator and is operated in the oral cavity of the patient, the design of the entire apparatus is a basic requirement for miniaturization, operability, and safety considerations. is there.
- the dental treatment apparatus 1 includes a vibration unit 2 that vibrates by a vibrator 21 that generates ultrasonic vibrations, and a chip unit that is connected to the vibration unit 2 and transmits ultrasonic vibrations. 3, a flow path 4 for releasing the bactericidal agent from the chip part 3, and an optical system 5 for irradiating the chip part 3 with laser light for photolyzing the bactericidal agent.
- the vibrating part 2 is formed in a substantially cylindrical shape by a corrosion-resistant alloy such as stainless steel.
- a vibrator 21 that generates ultrasonic vibration is attached to a predetermined position of the vibration unit 2.
- the vibrator 21 is a combination of piezoelectric elements and vibrates when driven by a voltage having a predetermined frequency supplied from a controller (not shown).
- the vibration direction is the axial direction (longitudinal direction) of the cover 10.
- a shaft portion 6 assembled integrally with the light source 50 is inserted along the axial direction (longitudinal direction) of the vibrating portion 2 from the proximal end side inside the vibrating portion 2.
- the outer diameter of the shaft portion 6 is made smaller than the inner diameter of the vibrating portion 2 so that the shaft portion 6 does not directly contact the vibrating portion 2.
- the shaft portion 6 is a member formed in a substantially cylindrical shape as a whole, and includes a hole 61 that passes through the center of the shaft, and a flow path that is disposed around the hole 61. 41,...
- the hole 61 is a circular through hole penetrating the axial center of the shaft portion 6 in the axial direction, and the fiber rod 51 constituting the optical system 5 is inserted into the hole 61.
- the fiber rod 51 is a so-called optical fiber and has a triple structure of a core, a clad, and a coating.
- the refractive index of the core is higher than that of the cladding, and light is propagated through the core in the central part by total reflection and refraction.
- the flow paths 41,... are formed as four fan-shaped holes and are arranged in the directions of 9 o'clock, 12 o'clock, 15 o'clock, and 18 o'clock, respectively.
- the shape / arrangement of the flow paths 41,... is not limited to the form of this embodiment, and other shapes / arrangements may be employed. For example, it may be a circular hole or a larger number of holes.
- the tip portion 3 is formed of an alloy or the like into a hollow bowl shape (L shape) with a sharp tip.
- the tip part 3 vibrates by being connected to the distal end side of the vibration part 2 and can remove tartar and plaque adhering to the tooth T.
- tip part 3 is not limited to a bowl shape, A linear form, circular arc shape, etc. may be sufficient.
- a light guide 52 that transmits laser light from the proximal end 31 to the distal end 32 of the chip part 3 is fitted into the chip part 3 of the present embodiment.
- the light guide 22 is formed of a resin having a higher refractive index than the disinfectant used.
- an acrylic resin can be used.
- the light guide 52 is inserted in the chip portion 3 in a loosely fitted state. Therefore, a flow path 43 through which a sterilizing agent flows is formed between the inner surface of the tip portion 3 and the outer surface of the light guide 52.
- the flow path 4 includes the intake port 40 to which the supply pipe 44 is connected, the flow path 41 on the proximal end side of the shaft portion 6, the spacers 7 and 7 on the distal end side inside the vibration portion 2, and the fiber rod 51.
- a flow path 42 formed by the space and a flow path 43 inside the chip portion 3 are configured.
- the optical system 5 includes a light source 50 that is a semiconductor light source that generates laser light, lenses 53 and 54 that collect the generated laser light, and a fiber rod 51 that transmits the laser light collected in the shaft portion 6. And a light guide 52 for transmitting laser light in the chip portion 3. That is, the optical system 5 of this embodiment is separated from the bactericide channel 4.
- the light source 50 and the lenses 53 and 54 are fixed to the proximal end side of the shaft portion 6 with a predetermined relative positional relationship.
- the light source 50 is a semiconductor laser (LD), a light emitting diode (LED), or the like.
- the wavelength of the laser beam generated by the light source 50 is set in a range suitable for photolysis of the bactericide.
- the wavelength of the laser beam is preferably 405 nm.
- the controller 21 is operated to vibrate the vibrator 21 to generate ultrasonic vibration.
- the ultrasonic vibration is transmitted to the chip unit 3 through the vibration unit 2.
- tip part 3 is pressed on a tartar etc., and a tartar is grind
- the light source 50 is turned on by operating the controller.
- the light emitted from the light source 50 is collected by the lenses 53 and 54 and enters the proximal end of the fiber rod 51.
- the incident light is transmitted through the fiber rod 51, not in the disinfectant, and reaches the light guide 52.
- the light transmitted through the light guide 52 is emitted from the tip of the light guide 52.
- the dental treatment apparatus 1 of the present embodiment is a dental treatment apparatus 1 that removes tartar or plaque and disinfects teeth.
- This dental treatment device 1 includes a vibration unit 2 that vibrates by a vibrator 21 that generates ultrasonic vibrations, a chip unit 3 that is connected to the vibration unit 2 and transmits ultrasonic vibrations, and a bactericidal agent from the chip unit 3.
- the bactericidal agent can be efficiently photolyzed by irradiating the tip portion 3 with a high-intensity laser beam.
- the light guide 52 that guides the laser beam to the tip of the chip unit 3 is disposed in the chip unit 3 as the optical system 5, and extends from the vicinity of the light source 50 of the optical system 5 to the base end part 52 a of the light guide 52.
- a fiber rod 51 is further provided.
- the light source 50 is arranged on the proximal end side of the dental treatment apparatus 1 and the vibrator 21 is arranged on the distal end side, so that the entire dental treatment apparatus 1 can be reduced in size and the laser beam can be attenuated. Can be suppressed.
- the vibrator 21 is located on the tip side. If it does so, in order to reduce the whole apparatus, the light source 50 will be arrange
- the shaft portion 6 assembled integrally with the light source 50 is inserted along the axial direction of the vibration portion 2 on the proximal end side inside the vibration portion 2, and the fiber rod 51 is inserted into the shaft portion 6.
- the hole 61 to be formed is disposed at the center of the axis, and the flow path 41 is disposed around the hole 61.
- the flow path 41 can also be configured by the shaft portion 6 while maintaining the relative positional relationship between the elements of the optical system 5.
- both the flow path 4 and the optical path can be secured in a narrow space in the vibration unit 2.
- the shaft portion 6 is formed so as not to directly contact the inside of the vibration portion 2. As a result, it is possible to prevent the ultrasonic vibration of the vibration unit 2 from being transmitted to the shaft unit 6 and causing problems in the light source 50 and the condenser lenses 53 and 54.
- the bactericidal agent can be selected from hydrogen peroxide, a bactericidal agent containing catechins, or a polyphenol solution. Thereby, a periodontal can be sterilized by the hydrogen peroxide decomposition
- the wavelength of the laser beam can be set to 405 nm. Thereby, a hydroxyl radical can be generated efficiently. Furthermore, since light of this wavelength is safe for the human body and effective for suppressing the growth of periodontal disease bacteria, the disinfection effect can be further promoted.
- the wavelength of the laser beam may be adjusted in the range of 400 to 500 nm. In this way, if the wavelength can be changed according to the periodontal disease, the device has good cost performance.
- the flow path of the bactericide and the optical path of the laser beam are described as being completely separated, but the present invention is not limited to this. If the distance is very short, even if there is a region where the flow path and the optical path overlap without being separated, they are included in the scope of the technical idea of the present invention.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Radiation-Therapy Devices (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
まず、図1を用いて本実施例の歯科治療装置1の構成を説明する。本実施例の歯科治療装置1は、振動部2と流路4と光学系5とを覆うカバー10を備えている(図2参照)。カバー10の基端には、後述する殺菌剤を供給する供給管44と電気を供給するコード55とが接続されている。カバー10の先端には、チップ部3が脱着可能に取り付けられている。このチップ部3を用いて、歯石又は歯垢の除去及び消毒・殺菌とが実行される。
次に、本実施例の歯科治療装置1の作用について説明する。本実施例の歯科治療装置1によれば、以下に説明するクリーニングと消毒・殺菌とを、同時に実施できる。クリーニング(歯石除去等)を実施するためには、コントローラを操作して、振動子21を振動させて超音波振動を発生させる。超音波振動は、振動部2を介してチップ部3に伝達される。そして、チップ部3の先端32を歯石等に押し当て、超音波振動によって歯石を粉砕する。
次に、本実施例の歯科治療装置1の効果を列挙して説明する。
2 振動部
21 振動子
3 チップ部
4 流路
41 流路
5 光学系
50 光源
51 ファイバーロッド
52 ライトガイド
6 シャフト部
61 孔
62 スペーサ
Claims (7)
- 歯石又は歯垢の除去と歯の消毒とをする歯科治療装置であって、
超音波振動を発生する振動子によって振動する振動部と、
前記振動部に接続されて前記超音波振動を伝達されるチップ部と、
前記チップ部から殺菌剤を放出するための流路と、
前記チップ部から前記殺菌剤を光分解するレーザ光を照射するための光学系であって、前記流路と分離された光路を有する光学系と、
を備えることを特徴とする歯科治療装置。 - 前記チップ部には、前記光学系として前記チップ部の先端までレーザ光を誘導するライトガイドが配置され、
前記光学系の光源の近傍から前記ライトガイドの基端部まで延設されるファイバーロッドをさらに備えることを特徴とする請求項1に記載の歯科治療装置。 - 前記振動部の内部の基端側には、前記光源と一体に組み立てられるシャフト部が、前記振動部の軸方向に沿って挿通され、
前記シャフト部には、前記ファイバーロッドが挿通される孔が軸中心に配置されるとともに、前記孔の周りに前記流路が配置されることを特徴とする請求項2に記載の歯科治療装置。 - 前記シャフト部は、前記振動部の内部と直接に接触しないように形成されていることを特徴とする請求項1乃至請求項3のいずれか一項に記載の歯科治療装置。
- 前記振動部の内部における先端側には、前記ファイバーロッドを挟持するスペーサ部材が配置されていることを特徴とする請求項2乃至請求項4のいずれか一項に記載の歯科治療装置。
- 前記殺菌剤は、過酸化水素、カテキン類を含む殺菌剤、又はポリフェノール溶液から選択されることを特徴とする請求項1乃至請求項5のいずれか一項に記載の歯科治療装置。
- 前記殺菌剤として過酸化水素を用いた場合に、前記レーザ光の波長が405nmであることを特徴とする請求項1乃至請求項6のいずれか一項に記載の歯科治療装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG11201510713VA SG11201510713VA (en) | 2013-07-03 | 2014-06-12 | Dental treatment device |
US14/901,656 US20160151640A1 (en) | 2013-07-03 | 2014-06-12 | Dental treatment device |
EP14820252.6A EP3017788A4 (en) | 2013-07-03 | 2014-06-12 | DENTAL TREATMENT DEVICE |
CN201480036285.2A CN105358093A (zh) | 2013-07-03 | 2014-06-12 | 牙科治疗装置 |
CA2917121A CA2917121A1 (en) | 2013-07-03 | 2014-06-12 | Dental treatment device |
KR1020157036973A KR20160029753A (ko) | 2013-07-03 | 2014-06-12 | 치과 치료 장치 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-139406 | 2013-07-03 | ||
JP2013139406A JP2015012887A (ja) | 2013-07-03 | 2013-07-03 | 歯科治療装置 |
Publications (1)
Publication Number | Publication Date |
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WO2015001933A1 true WO2015001933A1 (ja) | 2015-01-08 |
Family
ID=52143516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2014/065554 WO2015001933A1 (ja) | 2013-07-03 | 2014-06-12 | 歯科治療装置 |
Country Status (8)
Country | Link |
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US (1) | US20160151640A1 (ja) |
EP (1) | EP3017788A4 (ja) |
JP (1) | JP2015012887A (ja) |
KR (1) | KR20160029753A (ja) |
CN (1) | CN105358093A (ja) |
CA (1) | CA2917121A1 (ja) |
SG (1) | SG11201510713VA (ja) |
WO (1) | WO2015001933A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3294188A4 (en) * | 2015-05-05 | 2019-01-09 | The Regents of the University of California | LASER THERAPY FUNCTION ULTRASONIC DETECTOR |
KR101717765B1 (ko) | 2016-04-06 | 2017-03-17 | 김재환 | 초음파 생성 장치 및 치과용 의료기기 |
WO2018193798A1 (ja) * | 2017-04-21 | 2018-10-25 | 株式会社エーゼット | 歯科治療装置 |
CN107260332B (zh) * | 2017-06-19 | 2019-11-01 | 天津大学 | 一种超声振动旋转牙科直手机 |
JP7092484B2 (ja) * | 2017-10-25 | 2022-06-28 | 株式会社エーゼット | 体内骨埋込金属材料上骨芽細胞定着処理装置。 |
KR20200045819A (ko) * | 2018-10-23 | 2020-05-06 | 비엔엘바이오테크 주식회사 | 치과용 진동장치 |
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JP2012075602A (ja) | 2010-09-30 | 2012-04-19 | Ricoh Optical Industries Co Ltd | 歯石除去・消毒装置およびこれに用いるライトガイド |
JP2012235979A (ja) * | 2011-05-13 | 2012-12-06 | Ricoh Optical Industries Co Ltd | 歯石除去・消毒装置およびこれに用いるライトガイド |
JP2013102847A (ja) * | 2011-11-11 | 2013-05-30 | Osada Res Inst Ltd | 歯科用超音波治療器 |
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2013
- 2013-07-03 JP JP2013139406A patent/JP2015012887A/ja active Pending
-
2014
- 2014-06-12 EP EP14820252.6A patent/EP3017788A4/en not_active Withdrawn
- 2014-06-12 CA CA2917121A patent/CA2917121A1/en not_active Abandoned
- 2014-06-12 CN CN201480036285.2A patent/CN105358093A/zh active Pending
- 2014-06-12 WO PCT/JP2014/065554 patent/WO2015001933A1/ja active Application Filing
- 2014-06-12 KR KR1020157036973A patent/KR20160029753A/ko not_active Application Discontinuation
- 2014-06-12 US US14/901,656 patent/US20160151640A1/en not_active Abandoned
- 2014-06-12 SG SG11201510713VA patent/SG11201510713VA/en unknown
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Also Published As
Publication number | Publication date |
---|---|
KR20160029753A (ko) | 2016-03-15 |
CN105358093A (zh) | 2016-02-24 |
CA2917121A1 (en) | 2015-01-08 |
EP3017788A1 (en) | 2016-05-11 |
US20160151640A1 (en) | 2016-06-02 |
SG11201510713VA (en) | 2016-01-28 |
EP3017788A4 (en) | 2016-12-21 |
JP2015012887A (ja) | 2015-01-22 |
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