WO1992004876A3 - Dental treatment device and filler material for use therewith - Google Patents

Dental treatment device and filler material for use therewith Download PDF

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Publication number
WO1992004876A3
WO1992004876A3 PCT/DE1991/000742 DE9100742W WO9204876A3 WO 1992004876 A3 WO1992004876 A3 WO 1992004876A3 DE 9100742 W DE9100742 W DE 9100742W WO 9204876 A3 WO9204876 A3 WO 9204876A3
Authority
WO
WIPO (PCT)
Prior art keywords
filler material
tooth
treatment device
fibre
dental treatment
Prior art date
Application number
PCT/DE1991/000742
Other languages
German (de)
French (fr)
Other versions
WO1992004876A2 (en
Inventor
Erwin Steiger
Original Assignee
Erwin Steiger
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
Priority claimed from DE4029530A external-priority patent/DE4029530C2/en
Priority claimed from DE4030734A external-priority patent/DE4030734A1/en
Application filed by Erwin Steiger filed Critical Erwin Steiger
Publication of WO1992004876A2 publication Critical patent/WO1992004876A2/en
Publication of WO1992004876A3 publication Critical patent/WO1992004876A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
    • A61B18/26—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • B23K26/0613—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams having a common axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
    • G02B6/325—Optical coupling means having lens focusing means positioned between opposed fibre ends comprising a transparent member, e.g. window, protective plate
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08086—Multiple-wavelength emission
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/115—Q-switching using intracavity electro-optic devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B2018/2015—Miscellaneous features
    • A61B2018/2025—Miscellaneous features with a pilot laser
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B2018/2065—Multiwave; Wavelength mixing, e.g. using four or more wavelengths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/30—Organic material

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Laser Surgery Devices (AREA)

Abstract

Dental treatments are performed with a pulsed laser system, a fibre-optic transmission system, a dental fibre-optic laser hand tool (11) with interchangeable therapy heads (11a) and a special filler material based on hydroxylapatite or tetracalcium phosphate with which is mixed a tetracycline derivative. The system is suitable for the non-mechanical, contactless treatment of carious tooth defects, to make tooth cavities, to make permanent and non-toxic tooth inlays and for the non-mechanical preparation of root channels and their filling.
PCT/DE1991/000742 1990-09-18 1991-09-18 Dental treatment device and filler material for use therewith WO1992004876A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP4029530.3 1990-09-18
DE4029530A DE4029530C2 (en) 1990-09-18 1990-09-18 Modular, pulsed multi-wavelength solid-state laser for medical therapy procedures
DEP4030734.4 1990-09-28
DE4030734A DE4030734A1 (en) 1990-09-28 1990-09-28 Dental treatment by pulsed solid state laser - using fibre-optics tool and hydroxy-apatite or tetra:calcium phosphate filler

Publications (2)

Publication Number Publication Date
WO1992004876A2 WO1992004876A2 (en) 1992-04-02
WO1992004876A3 true WO1992004876A3 (en) 1992-05-14

Family

ID=25896975

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/DE1991/000743 WO1992004871A1 (en) 1990-09-18 1991-09-18 Modular-construction, pulsed multi-wavelength solid laser for medical purposes
PCT/DE1991/000742 WO1992004876A2 (en) 1990-09-18 1991-09-18 Dental treatment device and filler material for use therewith

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/DE1991/000743 WO1992004871A1 (en) 1990-09-18 1991-09-18 Modular-construction, pulsed multi-wavelength solid laser for medical purposes

Country Status (1)

Country Link
WO (2) WO1992004871A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5290274A (en) * 1992-06-16 1994-03-01 Laser Medical Technology, Inc. Laser apparatus for medical and dental treatments
DE4339488A1 (en) * 1993-11-19 1995-05-24 Rechmann Peter Dr Med Dent Handpiece, and method for rinsing the working point of a laser light beam emerging from an optical fiber
JP3675876B2 (en) * 1995-02-28 2005-07-27 株式会社ニデック Laser treatment device
DE19613566C2 (en) * 1996-04-04 1998-03-12 Peter Rechmann Device and method for curing a light-curing plastic filling material
AT411719B (en) 2000-10-02 2004-04-26 Femtolasers Produktions Gmbh DENTAL LASER ARRANGEMENT
JP2007029627A (en) * 2005-07-29 2007-02-08 Nidek Co Ltd Medical laser apparatus
US10835355B2 (en) 2006-04-20 2020-11-17 Sonendo, Inc. Apparatus and methods for treating root canals of teeth
WO2007124038A2 (en) 2006-04-20 2007-11-01 Dentatek Corporation Apparatus and methods for treating root canals of teeth
US7980854B2 (en) 2006-08-24 2011-07-19 Medical Dental Advanced Technologies Group, L.L.C. Dental and medical treatments and procedures
DE102008019694B3 (en) * 2008-04-17 2009-12-10 Hochschule Mittweida (Fh) Method for automatic preparation of dental body made of ceramic, involves cutting two periphery surfaces and side surfaces which are adjacent to each other corresponding to two dimensional projections with oversize according to laser
AU2010319321B2 (en) 2009-11-13 2016-01-14 Sonendo, Inc. Liquid jet apparatus and methods for dental treatments
WO2012054905A2 (en) 2010-10-21 2012-04-26 Sonendo, Inc. Apparatus, methods, and compositions for endodontic treatments
CN110623765A (en) 2012-03-22 2019-12-31 索南多股份有限公司 Apparatus and method for cleaning teeth
US10631962B2 (en) 2012-04-13 2020-04-28 Sonendo, Inc. Apparatus and methods for cleaning teeth and gingival pockets
EP2719801A1 (en) 2012-10-10 2014-04-16 Aurotec GmbH Spinning bath and method for solidifying a moulded part
EP2934364B1 (en) 2012-12-20 2019-04-03 Sonendo, Inc. Apparatus for cleaning teeth and root canals
US10363120B2 (en) 2012-12-20 2019-07-30 Sonendo, Inc. Apparatus and methods for cleaning teeth and root canals
US10722325B2 (en) 2013-05-01 2020-07-28 Sonendo, Inc. Apparatus and methods for treating teeth
US9877801B2 (en) 2013-06-26 2018-01-30 Sonendo, Inc. Apparatus and methods for filling teeth and root canals
WO2016100071A1 (en) * 2014-12-16 2016-06-23 Boston Scientific Scimed, Inc. Dual wavelength surgical laser system
US10806544B2 (en) 2016-04-04 2020-10-20 Sonendo, Inc. Systems and methods for removing foreign objects from root canals
USD997355S1 (en) 2020-10-07 2023-08-29 Sonendo, Inc. Dental treatment instrument

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415293A1 (en) * 1984-04-24 1985-11-14 Osada Electric Co. Ltd., Tokio/Tokyo Laser hand unit
FR2599961A1 (en) * 1986-06-12 1987-12-18 Morita Mfg MEDICAL HANDPIECE WITH LASER.
EP0297360A1 (en) * 1987-07-01 1989-01-04 AlliedSignal Inc. Dual-wavelength laser scalpel
US4887600A (en) * 1986-04-22 1989-12-19 The General Hospital Corporation Use of lasers to break down objects
WO1990001907A1 (en) * 1988-08-25 1990-03-08 Arthur Vassiliadis Dental laser assembly
DE3841503A1 (en) * 1988-12-09 1990-06-28 Wrobel Walter G Dr Method and device for removing dental tissue

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4730335A (en) * 1986-06-26 1988-03-08 Amoco Corporation Solid state laser and method of making
US4979180A (en) * 1989-11-24 1990-12-18 Muncheryan Arthur M Modular interchangeable laser system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415293A1 (en) * 1984-04-24 1985-11-14 Osada Electric Co. Ltd., Tokio/Tokyo Laser hand unit
US4887600A (en) * 1986-04-22 1989-12-19 The General Hospital Corporation Use of lasers to break down objects
FR2599961A1 (en) * 1986-06-12 1987-12-18 Morita Mfg MEDICAL HANDPIECE WITH LASER.
EP0297360A1 (en) * 1987-07-01 1989-01-04 AlliedSignal Inc. Dual-wavelength laser scalpel
WO1990001907A1 (en) * 1988-08-25 1990-03-08 Arthur Vassiliadis Dental laser assembly
DE3841503A1 (en) * 1988-12-09 1990-06-28 Wrobel Walter G Dr Method and device for removing dental tissue

Also Published As

Publication number Publication date
WO1992004871A1 (en) 1992-04-02
WO1992004876A2 (en) 1992-04-02

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