US3916880A - Device for holding open the mouth - Google Patents

Device for holding open the mouth Download PDF

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Publication number
US3916880A
US3916880A US560646A US56064675A US3916880A US 3916880 A US3916880 A US 3916880A US 560646 A US560646 A US 560646A US 56064675 A US56064675 A US 56064675A US 3916880 A US3916880 A US 3916880A
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United States
Prior art keywords
shaped
stirrup
shells
arc
improved device
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Expired - Lifetime
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US560646A
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English (en)
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Wolfgang Schroer
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
    • 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
    • A61C17/06—Saliva removers; Accessories therefor
    • A61C17/10—Saliva removers; Accessories therefor with mouth props, tongue guards, tongue depressors or cheek spreaders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/07—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements using light-conductive means, e.g. optical fibres

Definitions

  • An improved device for holding open a persons mouth so as to facilitate medical or dental treatment.
  • the improved device includes two shells which have a trough-shaped cross-section, which are designed to receive the patients lips and which are interconnected by a U-shaped stirrup that biases the shells outwardly, away from each other.
  • the stirrup includes a centrally disposed, stud-shaped projection which displaces and retains the tongue.
  • Two flanges are disposed at the ends of the stirrup and are curved outwardly so as to hold the patients cheeks away from the sides of his teeth.
  • the stirrup and the flanges may accommodate means of sucking saliva and other liquids from the mouth cavity and means for illuminating the mouth cavity.
  • This invention relates to a device for facilitating oral and dental treatment, and more particularly, to an improved device for holding open the mouth for treatment of the mouth and teeth.
  • the objective underlying the present invention is, therefore, to propose an improved device for holding open the mouth which overcomes the above mentioned disadvantages.
  • this improved device of the present invention completely liberates the patient from compulsion to close his mouth, relaxes the patients corresponding muscular system, keeps the mucous membranes of the patients mouth, and especially the inner surfaces of the cheeks, as far as possible from the patients teeth, and also removes and keeps away the patients tongue from the field of oral operation.
  • an improved device that includes arc-shaped shells, having a trough-shaped cross-section, interconnected and held apart by an elastic, substantially U-shaped, curved stirrup.
  • the U-shaped stirrup comprises a web having a stud-shaped projection at its center and flanges that are sharply, outwardly curved in the vicinity of the arc-shaped shells.
  • the shells are connected to the substantially U-shaped stirrup at the ends of the two flanges and are designed to receive the patients lips.
  • the U-shaped stirrup is adapted to be seated completely inside the mouth cavity in such a way that the flanges curving outwardly from the web of the stirrup press the patients cheeks outwardly away from the teeth.
  • the shape of my improved device is especially important since the improved device is thereby firmly held in the mouth.
  • my improved device can be compressed, to a certain extent, for insertion into a patients mouth. While compressed,
  • the arc-shaped shells are disposed opposite to the lips.
  • a suction tube may be led to a suitable position on the stirrup of my improved device, with this tube being connected by a flexible line to a salivasuction device.
  • a so-called cold illuminating line consisting in known manner, of a glass or glass fibre rod, may also be led to the two flange parts of the U-shaped stirrup, especially to the inner side of same, and these can thus serve to illuminate the mouth cavity, teeth, etc.
  • the entire U-shaped stirrup can be furnished with appropriate cold illuminating lines.
  • My improved device is preferably made of a suitable transparent plastic, which possesses the aforementioned necessary spring characteristics. It may also be of glass fibre-reinforced plastics. It is, however, possible to make the device of metal, and also for example, to provide the U-shaped stirrup with additional devices for resiliently or springingly urging open the arc-shaped shells.
  • FIG. 1 is a perspective view, from the front, of my improved device.
  • FIG. 2 is a diagrammatic view of my improved device from above.
  • FIG.. 3 is a view from the front of my improved device, showing tubes for sucking liquid from the mouth cavity and lines for illuminating mouth cavity.
  • FIG. 4 is a view plan of the device, according to FIG. 3, with a portion of a suction tube or cold illumination line being shown.
  • FIG. 5 is a section along the line V-V of FIG. 4.
  • FIG. 6 is a perspective view of my improved device, shown inserted into the mouth cavity.
  • FIG. 7 is a perspective view of a normally opened mouth without my improved device being inserted therein.
  • the improved device of my present invention includes two arc-shaped shells l0 and 10' whichhave a trough shaped cross-section and which receive the lips and push them apart.
  • the two shells correspond, in their curvature, approximately to the shape of the human mouth when A is spoken with the mouth wide open.
  • the width of the trough shaped crosssection of the shells is such that the lips are seated completely within the shells and are thus protected against damage or injury by any instruments being introduced into the mouth, to the extent that such instruments may indeed bear on the shells.
  • the shells l0 and 10 are spaced apart at the top by a certain amount X" and at the bottom by a certain amount Y. More will be said later about thepurpose of this feature.
  • the rear walls of the shells define flanges 12 and 12' that are outwardly convex and widened, the surface of these flanges being preferably somewhat domed. These flanges prevent the improved device from springing out from the mouth and makes retention possible. Moreover, the patients checks are thereby pressed outwards and at the same time protected by the widened, rear flanges l2 and 12.
  • the shape of the flanges is of special significance for the correct functioning of the improved device.
  • These extended and widened flanges form or define the ends of a substantially U-shaped stirrup 14, as can be seen from FIG. 2.
  • the stirrup 14 joins togetherthe two-troughs 10 and 10' and includes a web 16, which inconnects the flanges l2 and 12'.
  • the web 16 includes, at its inwardly curved center portion 18 and at its loweredge, as seen in FIG. 1, a stud-shaped projection 20 which is provided for protection of the tongue.
  • my improved device may be furnished with additional equipment assisting medical treatments carried out in the mouth cavity.
  • additional equipment assisting medical treatments carried out in the mouth cavity.
  • small pipe connections can open into the web 16 or into the lower parts of the arc-shaped shells l and and these pipe connections can be capable of being joined to flexible tubes enabling the saliva secretions to be sucked out from the mouth.
  • the U-shaped stirrup 14 can, moreover, also be equipped with cold illuminating sources, serving for lighting the mouth cavity.
  • Such additional equipment for promoting and facilitating medical treatment in the mouth cavity is shown on a device in FIGS. 3 to 6.
  • the U-shaped stirrup 14, which joins together the two arc-shaped shells 10 and 10', may be constructed as a hollow tubular body.
  • slits 23 are formed through which saliva and, for example, also cooling liquid for the driving turbine of the instrument can be sucked out.
  • the stud-shaped projection 20 which as noted above is situated approximately in the center of the U-shaped stirrup, there are formed one or two projections 24, two of which are shown in FIG. 3, and onto which short lengths of tube 25 may be alid.
  • These tubes penetrate into the deepest portions of the space beneath the patients tongue, that is the sublingual space, thereby enabling additional saliva to be sucked out.
  • the internal space of the tubular stirrup 14 is'in communication, in the vicinity of the arc-shaped shells l0'and 10, with an opening 26 in one trough or in both troughs.
  • FIG. 3 shows an opening 26 on one side only while FIG. 4 shows the openings on both sides.
  • the opening 26 may be connected, in an-appropriate manner, to a flexible tube leading to the suction side of a pump, and may have an internal thread or a bayonet coupling and is disposed in a thickened part of material, designated by reference 27 of the .shells, and is clearly shown again in FIG. 4.
  • each opening 28 which may widen out towards the inner face 2, as shown at 29, a cold illuminating line or connection (that is a flexible glass rod) is inserted through which the light from a remote light source is introduced so that the internal space of the mouth cavity may be well illuminated.
  • a similar cold illuminating line or connection may also be disposed on the other side in the trough 10 where in FIG. 4 it bears the reference numeral 30.
  • FIG. 5 a section is shown through the portion 16 of the stirrup 14, where the hollow internal space 31 and the slit-shaped openings 23 are clearly recognizable.
  • a flexible tube 32 is shown and may be utilized for sucking away liquid or a cold illuminating line or indeed may be both, since the two lines may be arranged coaxially in such a way that the cold illuminating line constitutes the core, while the suction line surrounds this core concentrically.
  • FIG. 4 also shows the outward bulges of the flanges 12 and 12', which are important for correct functioning of my improved device.
  • the flanges can also be more massively constructed, as shown, so that here again lines for light and/or liquid suction can be connected.
  • the proportions and dimensions of my improved device will depend upon whether it is intended for the mouth of a child, a young person or an adult.
  • FIG. 6 illustrates my improved device in use.
  • the arc-shaped troughs 10and 10 which receive the lateral lips, and also the greater opening of the mouth cavity and good access to the jaw, as compared with the hitherto usual arrangement of the mouth achieved by the muscular effort of the patient, as illustrated in FIG. 7.
  • FIG. 7 It can be seen in FIG. 7 that, in the upper jaw, only the two front incisors are visible, and these only in part. With a mouth open in this manner, the dentist himself still has to pry open the mouth further so that often he had only one hand left for actual work.
  • My improved device is made of a sterilizable material, either of a heat-resistant plastic or of a metal which provides the required flexibility.
  • the suction devices for the saliva, which collects in the mouth cavity, and also the cold light, which can be conducted through a glass rod, are both well known in the art and do not, per se, constitute a part of my invention.
  • the web 16 may also be provided, at a suitable position, with additional resilient devices, which exert a light outwards springing or resilient bias pressure upon the arc-shaped shells l0 and 10.
  • additional resilient devices which exert a light outwards springing or resilient bias pressure upon the arc-shaped shells l0 and 10.
  • An improved device adapted for holding open a persons mouth so as to facilitate medical and dental treatments, the improved device comprising:
  • first and second arc-shaped shells with each of the arc-shaped shells having a trough-shaped crosssection
  • a substantially U-shaped stirrup which includes a central web portion and first and second ends and which extend between and interconnects the first and second arc-shaped shells so that the arc-shaped shells are disposed at a distance from each other, the U-shaped stirrup also including means for elastically biasing the arc-shaped shells apart;
  • flanges being shaped so as to bulge sharply outwardly beyond the arc-shaped shells
  • a stud-shaped projection extending from the center of the web portion of the stirrup, the projection being adapted to displace and retain the patients tongue.
  • the improved device characterized in that the U-shaped stirrup is tubular and includes openings for sucking out liquid, whereby a liquid suction line may be disposed approximately in the center of at least one of the arc-shaped shells and may communicate with the interior of the U-shaped stirrup.
  • the improved device characterized in that the device includes, in the region of the center of the internal spaces of the arc-shaped shells, portions which provide points of connection for suction lines and for cold illuminating line.
  • the improved device according to claim 3, characterized in that the device is made of a transparent plastic material.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Epidemiology (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • External Artificial Organs (AREA)
US560646A 1974-06-14 1975-03-21 Device for holding open the mouth Expired - Lifetime US3916880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2428855A DE2428855C3 (de) 1974-06-14 1974-06-14 Vorrichtung zum Offenhalten des Mundes

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US (1) US3916880A (enrdf_load_stackoverflow)
JP (1) JPS51797A (enrdf_load_stackoverflow)
AT (1) AT353941B (enrdf_load_stackoverflow)
BE (1) BE824903A (enrdf_load_stackoverflow)
BR (1) BR7502488A (enrdf_load_stackoverflow)
CH (1) CH575749A5 (enrdf_load_stackoverflow)
DE (1) DE2428855C3 (enrdf_load_stackoverflow)
ES (1) ES231117Y (enrdf_load_stackoverflow)
FR (1) FR2274270A1 (enrdf_load_stackoverflow)
GB (1) GB1498272A (enrdf_load_stackoverflow)
SE (1) SE7500929L (enrdf_load_stackoverflow)

Cited By (62)

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US4019255A (en) * 1975-10-16 1977-04-26 Morton Cohen Dental apparatus for cheek retraction and saliva collection
US4200089A (en) * 1978-04-13 1980-04-29 Inoue Attachment Kabushiki Kaisha Mouth corner spreader
DE3128953A1 (de) * 1980-07-25 1982-04-08 Peter 2000 Hamburg Scheer "lichtzufuehrungsvorrichtung"
US4592344A (en) * 1980-07-25 1986-06-03 Scheer Peter M Combination illuminator and lip and cheek expander
US4671260A (en) * 1985-07-29 1987-06-09 Horst Buckner Oral exerciser for face, chin and neck, and medical appliance
US4736745A (en) * 1986-06-27 1988-04-12 University Of Cincinnati Laser treatment of cancerization of the oral cavity and apparatus for use therewith
US4802851A (en) * 1988-02-03 1989-02-07 Rhoades Clark J Dental appliance
US4889491A (en) * 1988-03-14 1989-12-26 Krygier S James Dental throat shield
USD388846S (en) 1996-11-07 1998-01-06 Snap Products, Inc. Facial exerciser
WO2002007636A1 (en) 2000-07-24 2002-01-31 The Procter & Gamble Company Lip retractor
US6436034B1 (en) * 1998-08-31 2002-08-20 Hiroyuki Funatogawa Intrabuccal stretcher
US20040152051A1 (en) * 2002-11-15 2004-08-05 Lisa Craig Tooth bleaching process
USD496995S1 (en) 2002-12-06 2004-10-05 Discus Dental Impressions, Inc. Combined dental lip and tongue retractor
US20050074720A1 (en) * 2002-11-22 2005-04-07 Anderson Ross William Apparatus for maintaining a dry field during dental procedures
US20050227199A1 (en) * 2004-04-08 2005-10-13 Patrickus John E Combined mouth expanding and saliva ejecting dental apparatus
US20060029904A1 (en) * 2004-07-02 2006-02-09 Discus Dental Impressions, Inc. Support system for dentistry
WO2006026129A1 (en) * 2004-08-25 2006-03-09 Discus Dental Impressions Retracting devices
US20060069316A1 (en) * 2004-07-02 2006-03-30 Discus Dental Impressions, Inc. Retracting devices
US20060155171A1 (en) * 2005-01-13 2006-07-13 Yang Chien H Illumination apparatus for oral cavity
US20060154209A1 (en) * 2004-07-02 2006-07-13 Robert Hayman Voice alert in dentistry
US20060166161A1 (en) * 2004-07-02 2006-07-27 Discus Dental Impressions, Inc. Illumination system for dentistry applications
USD537192S1 (en) 2005-01-04 2007-02-20 Discus Dental Impressions, Inc. Light guide for dentistry applications
WO2006014370A3 (en) * 2004-07-02 2007-03-29 Discus Dental Impressions Inc Light guide for dentistry applications
US20070123859A1 (en) * 2005-10-25 2007-05-31 Depuy Spine, Inc. Laminar hook spring
US20070148619A1 (en) * 2002-11-22 2007-06-28 Anderson Ross W Apparatus for maintaining a dry field during dental procedures
US20070231773A1 (en) * 2006-03-31 2007-10-04 Curtis Pontynen Methods, Devices, Systems and Kits for Isolating Teeth
US20080021286A1 (en) * 2004-12-29 2008-01-24 Olof Risto Retractor
US20080032252A1 (en) * 2004-08-25 2008-02-07 Discus Dental Impressions, Llc Illumination system for dental applications
US20080064001A1 (en) * 2004-07-02 2008-03-13 Discus Dental, Llc Retracting Devices
USD564658S1 (en) 2002-11-22 2008-03-18 Ross William Anderson Apparatus for maintaining a dry field during dental procedures
WO2008060134A1 (es) * 2006-11-14 2008-05-22 Fernandez Del Busto-Ortega Enr Dispositivo para la iluminación unilateral o bilateral de la cavidad oral
US20090029311A1 (en) * 2006-01-24 2009-01-29 Smile Studio (Uk) Limited Method and apparatus for whitening teeth
US20090081611A1 (en) * 2007-09-26 2009-03-26 Indentiv, Llc Methods, devices, systems, assemblies, and kits for tissue retraction in an oral cavity
CN101822577A (zh) * 2010-05-19 2010-09-08 四川大学 分体式主动口腔开口器
US20110137102A1 (en) * 2009-06-04 2011-06-09 Mayo Foundation For Medical Education And Research Stereotactic intracranial target localization guidance systems and methods
USD737964S1 (en) 2014-03-14 2015-09-01 Ultradent Products, Inc. Cheek retractor device
US20150272693A1 (en) * 2012-11-08 2015-10-01 Omri Emodi Intracavity illumination device
US20150320527A1 (en) * 2014-05-12 2015-11-12 King Saud University Dental device with dual saliva extraction and dual retractor
US20160175067A1 (en) * 2014-12-17 2016-06-23 Chris Bohlman Combination lip retractor and guard with integrated light source, suction, and surgical smoke plume filter
USD763444S1 (en) 2014-03-14 2016-08-09 Ultradent Products, Inc. Cheek retractor device
USD782048S1 (en) 2016-04-20 2017-03-21 Ascentcare Dental Labs, Llc Dental bite block
USD782047S1 (en) 2016-04-20 2017-03-21 Ascentcare Dental Labs, Llc Dental accessory for holding a saliva ejection tube
USD787069S1 (en) 2016-04-20 2017-05-16 Ascentcare Dental Labs Illuminated dental accessory for holding saliva ejection tube
USD787070S1 (en) 2016-04-20 2017-05-16 Ascentcare Dental Labs Illuminated dental accessory with tongue suppressor
USD792590S1 (en) 2015-07-21 2017-07-18 Ultradent Products, Inc. Cheek retractor device
US9901332B2 (en) 2013-03-15 2018-02-27 Ultradent Products, Inc. Cheek retractor device and method
USD817492S1 (en) 2016-04-20 2018-05-08 Ascentcare Dental Labs, Llc Dental accessory with tongue suppressor
US9968341B2 (en) 2015-04-21 2018-05-15 Ascentcare Dental Labs, Llc Dental bite block assembly
CN109770838A (zh) * 2019-03-06 2019-05-21 郑彬彬 一种牙科门齿检查治疗用支撑装置
US10595964B2 (en) * 2017-06-06 2020-03-24 Randeep Chana Intra-oral appliance for field isolation and moisture control
WO2020173964A1 (en) * 2019-02-25 2020-09-03 Paul Moore Dental device
USD914214S1 (en) 2019-06-03 2021-03-23 Ultradent Products, Inc. Dental retraction device
DE102020002627A1 (de) 2020-05-03 2021-11-04 Carolinum Zahnärztliches Universitätsinstitut gemeinnützige GmbH Wangenabhalter mit Absaugung
GR20200100255A (el) * 2020-05-14 2021-12-09 Παναγιωτης Νικολαος Δημητριου Βολης Παρειοκατοχο και προστομιο οδοντιατρικης αναρροφησης
US11234585B2 (en) * 2019-06-25 2022-02-01 E. Lynn Colbert Dental retraction and isolation devices
WO2022028632A1 (en) * 2020-08-04 2022-02-10 PFA Industry s.r.o. Dental protective suction device
US20220125564A1 (en) * 2019-02-19 2022-04-28 Beijing Yakebot Technology Co., Ltd Oral treatment guide plate
US20220183807A1 (en) * 2020-12-11 2022-06-16 Xerosguard Inc. Intra-oral appliance
US20220218454A1 (en) * 2021-01-08 2022-07-14 Ahmed ELDIB Cheek retractor with aerosol suction
US20230329848A1 (en) * 2022-04-18 2023-10-19 Tesoro Ip Holding, Llc Cheek Retractor
US11931597B1 (en) * 2023-07-20 2024-03-19 King Saud University Intraoral radiotherapy stent
US12409012B2 (en) 2019-02-25 2025-09-09 Paul Moore Dental device

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FR2383653A1 (fr) * 1977-03-16 1978-10-13 Cohen Morton Appareil dentaire a elements ecarteurs de joues
DE3329919A1 (de) * 1983-08-19 1985-04-04 Dusan 6367 Karben Mihajlovic Lippenschutz
JPS6182656A (ja) * 1984-09-17 1986-04-26 Iwasaki Electric Co Ltd 金属蒸気放電灯
JPS6180010U (enrdf_load_stackoverflow) * 1984-11-01 1986-05-28
JPH05255292A (ja) * 1992-03-17 1993-10-05 Okishiran Kagaku Kk エポキシドの製造方法
RU2165245C2 (ru) * 1998-01-06 2001-04-20 Арсенина Ольга Ивановна Тренажер для механотерапии мягких тканей полости рта
RU2177242C2 (ru) * 1998-12-15 2001-12-27 ООО "Меркуриус" Ротоскоп
RU2177241C2 (ru) * 2000-02-17 2001-12-27 Научно-исследовательский институт фтизиопульмонологии ММА им. И.М.Сеченова Расширитель рта
DE102005056575A1 (de) * 2005-11-25 2007-05-31 Christian Roser Beleuchtungsvorrichtung für zahnärztliche Behandlung
RU2529413C1 (ru) * 2013-07-08 2014-09-27 федеральное государственное бюджетное учреждение "Центральный научно-исследовательский институт стоматологии и челюстно-лицевой хирургии" Министерства здравоохранения Российской Федерации Стоматологический ретрактор для дистальных участков зубных рядов
CN110859590B (zh) * 2019-10-18 2021-11-30 中国人民解放军空军军医大学 一种口腔张开器

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Patent Citations (1)

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Cited By (97)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019255A (en) * 1975-10-16 1977-04-26 Morton Cohen Dental apparatus for cheek retraction and saliva collection
US4200089A (en) * 1978-04-13 1980-04-29 Inoue Attachment Kabushiki Kaisha Mouth corner spreader
DE3128953A1 (de) * 1980-07-25 1982-04-08 Peter 2000 Hamburg Scheer "lichtzufuehrungsvorrichtung"
US4592344A (en) * 1980-07-25 1986-06-03 Scheer Peter M Combination illuminator and lip and cheek expander
US4671260A (en) * 1985-07-29 1987-06-09 Horst Buckner Oral exerciser for face, chin and neck, and medical appliance
US4736745A (en) * 1986-06-27 1988-04-12 University Of Cincinnati Laser treatment of cancerization of the oral cavity and apparatus for use therewith
US4840174A (en) * 1986-06-27 1989-06-20 University Of Cincinnati Method of laser treatment of cancerization of the oral cavity
US4802851A (en) * 1988-02-03 1989-02-07 Rhoades Clark J Dental appliance
US4889491A (en) * 1988-03-14 1989-12-26 Krygier S James Dental throat shield
USD388846S (en) 1996-11-07 1998-01-06 Snap Products, Inc. Facial exerciser
US6436034B1 (en) * 1998-08-31 2002-08-20 Hiroyuki Funatogawa Intrabuccal stretcher
WO2002007636A1 (en) 2000-07-24 2002-01-31 The Procter & Gamble Company Lip retractor
US20040152051A1 (en) * 2002-11-15 2004-08-05 Lisa Craig Tooth bleaching process
AU2003295578B2 (en) * 2002-11-15 2009-08-27 Discus Dental, Llc. Tooth bleaching process
CN101094643B (zh) * 2002-11-15 2010-04-28 迪斯卡斯牙科有限责任公司 牙齿漂白法
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GB1498272A (en) 1978-01-18
ES231117U (es) 1978-03-01
AT353941B (de) 1979-12-10
ATA59675A (de) 1979-05-15
JPS51797A (enrdf_load_stackoverflow) 1976-01-06
DE2428855A1 (de) 1975-12-18
FR2274270A1 (fr) 1976-01-09
ES231117Y (es) 1978-07-01
BE824903A (fr) 1975-05-15
DE2428855C3 (de) 1979-05-23
SE7500929L (sv) 1975-12-15
CH575749A5 (enrdf_load_stackoverflow) 1976-05-31
BR7502488A (pt) 1976-06-29
DE2428855B2 (de) 1978-09-28

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