Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS2257709 A
Publication typeGrant
Publication dateSep 30, 1941
Filing dateOct 14, 1938
Priority dateOct 14, 1938
Publication numberUS 2257709 A, US 2257709A, US-A-2257709, US2257709 A, US2257709A
InventorsAnderson Louis P
Original AssigneeAnderson Louis P
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Dental appliance
US 2257709 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Sept. 30, 1941. A L. P. ANDERSON 7 2,257,709

DENTAL APPLIANCE Filed Oct. 14, 1938 Patented Sept. 30, 1941 .UNITED STATES PATENT OFFICE DENTAL APPLIANCE Louis P. Anderson, Villa Park, 111.

Application October 14, 1938, Serial No. 234,971

1 Claim.

This invention relates to shields or covers adapted to be placed in the mouth over the teeth therein for encasing the teeth and adjacent gums.

More specifically, the invention relates to a trough-like shield conforming with the contour of a human jaw and having flexible flaps along the sides thereof adapted to be pressed against and adhere to the gums on each side of the teeth, whereby all of the teeth projecting from a jaw will be covered.

In the treating or cleaning of teeth and gums, it is desirable to retain the treating material or cleaner around the teeth or gums in an undiluted state. For example, in the treatment of pyorrhea and other gum disorders, a treatment is placed between and around the teeth. The saliva in the mouth, however, soon dilutes this treating material and the treating material soon drains from around the teeth and gum. Under these conditions, the beneficial efiects of the treating material are soon dissipated and more frequent applications of fresh material are required than would be necessary if the material could have a prolonged contact in an undiluted state with the treated area.

Itis also desirable in many dental operations to retain the gums in a dry condition. This has heretofore been quite dificult due to the collection of saliva in the mouth. The present invention now greatly facilitates the maintenance of gums in dry condition for a dental operation.

Dentists have long recognized thatthe cleansing of teeth should be accompanied by a massaging action on the gums and have taken great pains to educate the public as to the proper manner in brushing their teeth. In spite of this effort,

however, correct teeth cleaning technique is not yet acquired by the majority of the public. One of the forms of this invention, on the other hand, provides for the correct cleaning of teeth through an ordinary biting or masticating manipulation of the jaws, so that the cleansing'operation is to be pressed against and retained bythe gums to hold the shield in position over the teeth.

In a modification, the body portion of the shield can have a plurality of inwardly projecting flexible projections or tits adapted to engage the teeth and marginal ends of the gums as well as project between the teeth. If desired, some of the tits can be longer than others to reach between the interproximal spaces. When the base of the shield is pressed toward the teeth which the shield covers as by a chewing or biting operation of the jaws, the projections or tits are forced against and between the teeth and under the free margins of the gums thereby cleaning the teeth and massaging the gums.

The shields or cover members of this invention can be furnished in different sizes, but it is believed that three sizes, such as large, medium and small, will be sufficient to meet all requirements.

It is, then, an object of this invention to provide a'shield adapted to encase the teeth projecting from a jaw and be retained by the gums on the opposite sides of the teeth.

A further object of this invention is to provide an inexpensive dental shield adapted to encase the teeth projecting from a human jaw and be retained by the jaw.

A further object of this invention is to provide a trough-like member following the coutour of a. human jaw and having flaps adapted to be retained by the sides of the gums.

A further object of this invention is to provide a tooth or gum shield capable of being placed in position by the patient.

A further object of the invention is to provide shield devices readily mounted over the teeth and having inwardly projecting means for cleansing the teeth.

A further object of the invention is to provide disposable shields for the teeth or gurus in a human mouth.

Other and further objects of the invention will become apparent to those skilled in the art from the following detailed description of the annexed sheet of drawings which discloses preferred embodiments of the invention.

On the drawing:

Figure 1 is a perspective view of a dental shield according to this invention.

Figure 2 is a broken rear-elevational view of the shield shown in Figure l.

Figure 3 is an enlarged vertical cross-sectional view, with parts in elevation, taken through the upper andlower jaw of a human mouth and illus- USE. preferably made thicker than thefiaps l4 and trating the shields of this invention disposed over the teeth and adhering to the gums.

Figure 4 is a cross-sectional view, with parts in elevation, similar to Figure 3 but illustrating modified forms of shields according to this invention, which shields are provided with inward- 1y projecting tits for teeth-cleansing and gummassaging operations.

Figure 5 is a cross-sectional view, with parts in elevation, taken through the upper jawof a human mouth and illustrating a further modified form of shield according to this invention disposed over the teeth of the upper jaw and adhering to the gums at the sides of the teeth.

As shown on the drawing:

In Figures 1 to 3 inclusive the reference numeral I designates generally a shield or cover according to this invention. 1 The shield I0 cornprises a trough-likeor cup-shaped body portlon II of U-shaped contour so as to follow the tooth or jaw'contour of a. humanmouth. The ends of the body portion II areclosed as at I2 and I3 respectively (Figures 1 and 2).

the teeth It projecting from the gums i? of a human jaw. The flaps I4 extending from the front. side of the body member II are fitted against the gums I! along the outer sides of the teeth id. The flaps I5 are likewise fitted against the gums I 'I along the inner sides of the teeth !6.

The shields ID are made of moisture-proof or moisture-resisting material so that a pressing of the. flaps I4 and I5 against the gums [I7 will cause the flaps to adhere to the gums due to capillary action or adherence'obtained by pressing a flexiblesheet against a wet surface. If

desired the flaps Id and 'I5 can have a 'water- 5 soluble adhesive applied to their inner'faces, but such additional adhesive is not ordinarily necessary.

The .ends I2 and I3 of the shields fit over the last molar teeth .in the mouth and seal the ends of the trough so as to provide'closed chambers I8 around the teeth. These chambers I8 are sealed from the mouth bythe flaps I l and I5 and by the end portions I2 and I3.

The shields I9 can be made of any inexpensive material so asfto enable disposal after each The body portions II -ofthe shields ID are I5 so as to have increased strength andshaperetaining characteristics. Theshields can be made by stamping ormold ing operations and, if necessary, the body por- In other cases wherexthe gums IJ'I have been I treated by injecting :medicines therein. the

treating material can be retained in an undiluted condition by merely disposing shields according to this invention over the teeth and gums. If the material drains from the gums into the sealed chambers I8, it may still have some effect upon the gums due to mechanical splashing against the gums or action of its vapors on the gums. The shields therefore make possible prolonged treatment with a single application of treating material.

In Figure 4, parts identical with parts described in Figure 3 have been marked with the same reference numerals.

As shown in Figure 4, shields 20 are disposed over the teeth I6. These shields 20 are'made of a more permanent material such as rubber and are adapted for repeated use.

The shields 20 comprise thickened body portions 2I corresponding with the body portions II of shield-s Ill and thinner flaps/22 and 23 corresponding with the fiaps I4 and I5 of the shields m. The body portions 2| are disposed around the teeth It and the flaps 22 and 23 are pressed against and adhere to the gums H in the same manner as describedin connection with Figure 3. Sealed chambers I8 are thus provided around the teeth I6.

The body portions 2! of the shields 28 have a plurality of spaced inwardly projecting fingers .or tits 24 along the side walls thereof. The bases or connecting walls of the body portions 2I are not provided with the fingers or'tits 24 and the body portion 2! is preferably formed so that these connecting walls or base walls are in spaced relation from the tops of the teeth I6.

When the teeth I6 are moved toward, each' other, as during a biting or chewing movement of the jaws, the base walls orconnecting. walls of the body members 2I'are forced toward the tops of the teeth thereby causing the side walls of the body portion 2I to flex. This spreads the fingers or tits 24 and creates a massaging or rubbing action of the tits against the teeth and into the free ends or marginal ends Ila of the gums I1. 5

The fingers or tits 24 thus clean the teeth, and since they extend along the entire exposed tooth area, a simple biting or chewing action is all that is necessary to massage the gums and clean the teeth. These fingers or tits 241will also project into the spaces between the teeth to clean the same. y

A cleansing preparation can be insertedin the shields 2i]. before the same are mounted in' position on the gums, or the teeth and gums can be coated with a cleansing preparation prior to assembly of the'shields. Then when the shields are flexed by the biting or chewing movements of the jaws, this cleansing preparation will be flushed in and out aroundthe fingers to aid the same in their cleansing and massaging functions. A plunger action is thus obtainedin the chambers 58, which forces the cleansing or treating material into and out of allcavities, spaces-be tween the teeth, and even between; the marginal edges Ila of the gums I7. and the teeth. 7

The rubber or other permanent material used for making the s hields 29 makes possible 'a repeated use of the'shields;

In Figure 5', parts identical: with parts described in Figure 4 have been designated by the same reference numerals." In the modification shown in Figure 5, additional fingers or tits 25 t are. formed onthe. connecting wall or base of the body portion 2I of the 'shield 20. These fingers act against the tops of the teeth such as I6 and, during the biting or chewing manipulations of the jaws, will spread and rub over the tops of the teeth in the same manner in which the fingers 24 rub over the sides of the teeth as described in Figure 4.

It should be understood that two shields 20 are not necessarily used at the same time for simultaneous treatments of the upper and lower teeth. The same shield 20 can be used to treat both sets of teeth in succession and the biting operation of one set of teeth, against the shield 20 will have the same result as the contacting of the two shields together, such as is shown in Figure 4.

I am aware that many changes may be made and numerous details of construction may be varied through a, wide range without departing from the principles of this invention, and I, therefore, do not purpose limiting the patent granted hereon otherwise than necessitated, by the prior art.

I claim as my invention:

A dental appliance comprising a flexible channel-shaped body member having sidewalls and a connecting wall of substantially equal thickness arranged to encase all of the teeth projecting from a human jaw in spaced relation from said teeth, said sidewalls having substantially the same height along their entire length, walls at the ends of said body member extending from said connecting wall to the tops of said sidewalls, relatively thinner flexible flaps continuing upwardly from the sidewalls of said body member having inner faces engageable along substantially their entire length and Width with the gums adjacent said teeth for retaining said body memher in said spaced relation therewith, and a plurality of fingers projecting inwardly from the walls of said body member and adapted normally to engage a tooth surface at their ends, said fingers being arranged to rub against a portion of a surface adjacent the fingers to cleanse the surface when said body member is flexed.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2431521 *Jun 22, 1946Nov 25, 1947Thiemann Julius AGum brace
US3107668 *Jul 17, 1962Oct 22, 1963Thompson Junior WMethod of forming a tooth protector
US3874084 *Dec 6, 1973Apr 1, 1975Greene Orville NPrescription tooth-cleansing and gingival therapeutic device
US4968251 *Jul 3, 1989Nov 6, 1990Darnell Daniel HTreatment of a tooth
US4990089 *May 4, 1990Feb 5, 1991Dunhall Pharmaceuticals, Inc.Method and material for brightening teeth
US5085585 *Feb 5, 1991Feb 4, 1992Zimble Alan WDental medicament applicator and method of use
US5163840 *Jun 24, 1991Nov 17, 1992Bourke Kevin JFor treating jaw and tooth malformations
US5175901 *May 1, 1991Jan 5, 1993Rabinowitz Gary AApparatus and method for brushing teeth
US5194003 *Jan 3, 1992Mar 16, 1993Transpharm Group, Inc.Removable device for delivering beneficial agents orally
US5211559 *Jun 2, 1992May 18, 1993Gillette Canada Inc.Dental treatment tray for holding medicament gel
US5234342 *Jun 20, 1991Aug 10, 1993Ultradent Products, Inc.Sustained release method for treating teeth surfaces
US5337435 *Sep 18, 1992Aug 16, 1994Krasner Janet HAutomatic toothbrush
US5376006 *Sep 24, 1992Dec 27, 1994Ultradent Products, Inc.Sustained release; dental tray with reservoirs for holding composition close to teeth for required time; includes high carboxypolymethylene concentration for high viscosity
US5409631 *Nov 22, 1991Apr 25, 1995Ultradent ProductsDental bleaching compositions and methods for bleaching teeth surfaces
US5460527 *Aug 22, 1994Oct 24, 1995E-Z Gard Industries, Inc.Composite dental bleaching tray
US5462067 *Aug 18, 1994Oct 31, 1995Shapiro; IraDevice for hygienic protection of the teeth and gums
US5536168 *Nov 30, 1994Jul 16, 1996Bourke; Kevin J.Mouth worn apparatus, a method for treating jaw and teeth malformations, and a method for preventing snoring
US5718575 *Dec 16, 1996Feb 17, 1998Big Picture, Inc.Adjustable, customizable performance enhancing dental appliance
US5725843 *Sep 27, 1996Mar 10, 1998Ultradent Products, Inc.Methods for bleaching teeth surfaces
US5746598 *Sep 27, 1996May 5, 1998Ultradent Products, Inc.Dental bleaching compositions including a sticky matrix material
US5759037 *Sep 26, 1996Jun 2, 1998Ultradent Products IncMethods for manufacturing dental trays having thin walls for increased comfort
US5759038 *Sep 26, 1996Jun 2, 1998Fischer; Dan E.Dental kit for applying sticky dental bleaching compositions to a person's teeth
US5770105 *Sep 30, 1996Jun 23, 1998Ultradent Products, Inc.Mixing carboxypolymethylene, one or more polyols and water to form a matrix, adding base to adjust ph, dispersing bleaching agent in matrix
US5770182 *Jan 25, 1995Jun 23, 1998Ultradent Products, Inc.Methods for treating teeth with anticariogenic and antimicrobial dental compositions
US5836761 *Aug 5, 1996Nov 17, 1998Big Picture, Inc.Adjustable customized dental appliance
US5846058 *Sep 26, 1996Dec 8, 1998Ultradent Products, Inc.Dental trays having thin walls for increased patient comfort
US5851512 *May 30, 1997Dec 22, 1998Ultradent Products, Inc.Dental compositions having a sticky matrix material for treating sensitive teeth
US5855870 *May 30, 1997Jan 5, 1999Ultradent Products, Inc.Method for treating sensitive teeth
US5865619 *Feb 11, 1998Feb 2, 1999Big Picture, Inc.Triple composite performance enhancing dental appliance
US5879155 *Dec 16, 1996Mar 9, 1999Big Picture, Inc.A customized dental appliance for athelete mouth protects the teeth, jaws, gums, connective tissues, back, head and muscles from teeth clenching force typically exerted during athletic acitivity
US5954500 *Sep 24, 1998Sep 21, 1999Spriggs; Stephen ToddGuard for teeth with braces
US5985249 *Oct 14, 1997Nov 16, 1999Ultradent Products, Inc.Sticky dental compositions for adhering a passive-type dental tray over a person's teeth
US6012919 *Feb 1, 1999Jan 11, 2000Cross, Iii; Henry D.Triple composite performance enhancing dental appliance
US6036943 *Oct 14, 1997Mar 14, 2000Ultradent Products, Inc.Methods for treating a person's teeth using sticky dental compositions in combination with passive-type dental trays
US6086855 *Feb 26, 1999Jul 11, 2000Ultradent Products, Inc.Obtaining an impression, preparing a stone cast from the impression, forming the dentral tray from the cast using a preformed polymer sheet, and scalloping dental tray so it covers the teeth only; use to treat teeth surfaces, bleaching
US6126443 *Dec 21, 1998Oct 3, 20003M Innovative Properties CompanyMedication delivery tray
US6142780 *Jun 15, 1999Nov 7, 20003M Innovative Properties CompanyCustom tray for delivering medication to oral structures
US6183251Feb 26, 1999Feb 6, 2001Ultradent Products, Inc.Scalloped dental trays for use in treating teeth with sticky dental compositions
US6200133Mar 8, 1999Mar 13, 2001Big Picture, Inc.Adjustable customizable dental appliance with triple composite structure
US6237601Sep 8, 2000May 29, 2001Big Picture, Inc.Cross-cantilever connectors for a dental appliance
US6257239Sep 8, 2000Jul 10, 2001Bite Tech, Inc.Dental appliance with anti-microbial additive
US6306370Nov 12, 1998Oct 23, 2001Ultradent Products, Inc.Compositions and methods for whitening and desensitizing teeth
US6309625Nov 12, 1998Oct 30, 2001Ultradent Products, Inc.One-part dental compositions and methods for bleaching and desensitizing teeth
US6322360Oct 22, 1999Nov 27, 20013M Innovative Properties CompanyMedication retention assembly for oral delivery tray
US6368576Oct 23, 2000Apr 9, 2002Ultradent Products, Inc.Mixture of bleach and potassium nitrate
US6371758Dec 12, 1996Apr 16, 2002Bite Tech, Inc.One-piece customizable dental appliance
US6415794 *Sep 8, 2000Jul 9, 2002Bite Tech, Inc.Composite dental appliance with wedge
US6491036Apr 6, 2001Dec 10, 2002William A. CookLow-density polyethylene dental appliance and mouthguard with nucleating agent
US6505626Apr 6, 2001Jan 14, 2003Jon D. KittelsenComposite mouthguard with nonsoftenable framework and disconnected anterior impact braces
US6505627Apr 6, 2001Jan 14, 2003Jon D. KittelsenComposite mouthguard with palate arch and anterior palate opening
US6505628Apr 6, 2001Jan 14, 2003Jon D. KittelsenQuadruple composite performance enhancing mouthguard
US6508251Apr 6, 2001Jan 21, 2003Jon D. KittelsenComposite mouthguard with palate arch with nonsoftening framework having at least one bridge
US6510853Apr 6, 2001Jan 28, 2003Jon D. KittelsenEncapsulated quintuple composite mouthguard
US6539943Sep 8, 2000Apr 1, 2003Bite Tech, Inc.Encapsulated composite dental appliance
US6553996Apr 6, 2001Apr 29, 2003Jon D. KittelsenDental appliance with antimicrobial additive
US6581604Apr 6, 2001Jun 24, 2003Bite Tech, Inc.Low-density polyethylene dental appliance and mouthguard
US6588430Apr 6, 2001Jul 8, 2003Bite Tech, Inc.Composite performance enhancing mouthguard with embedded wedge
US6598605Sep 8, 2000Jul 29, 2003Bite Tech, Inc.Non-softenable, impressionable framework for dental appliances
US6626180Sep 8, 2000Sep 30, 2003Bite Tech, Inc.Quadruple composite performance enhancing dental appliance
US6675806Apr 6, 2001Jan 13, 2004Bite Tech, Inc.Composite mouthguard with elastomeric traction pads and disconnected anterior impact braces
US6685922Mar 23, 2001Feb 3, 2004Dentsply International Inc.Tooth whitening material and method of whitening teeth
US6685923Jan 25, 2002Feb 3, 2004Dentsply Research & Development Corp.Hydrogen peroxide aqueous solution
US6691710Apr 6, 2001Feb 17, 2004Bite Tech, Inc.Composite mouthguard
US6702575Apr 3, 2002Mar 9, 2004Jack Keith HilliardOrthodontic aligner auxiliary system
US6820623Nov 14, 2002Nov 23, 2004Bite Tech, Inc.Polyethylene dental appliance and mouthguard with tactifier resin
US6860736Feb 19, 2004Mar 1, 2005Ultradent Products, Inc.Oral treatment devices that include a thin, flexible barrier layer and an endoskeleton treatment or adhesive composition
US6964571Nov 4, 2003Nov 15, 2005Ultradent Products, Inc.Pre-shaped dental trays and treatment devices and methods that utilize such dental trays
US6997708Dec 5, 2003Feb 14, 2006Ultradent Products, Inc.Treatment compositions and strips having a solid adhesive layer and treatment gel adjacent thereto
US7004756Jan 24, 2003Feb 28, 2006Ultradent Products, Inc.Pre-shaped dental trays and treatment devices and methods that utilize such dental trays
US7011523Oct 22, 2003Mar 14, 2006Ultradent Products, Inc.Bleaching compositions and devices having a solid adhesive layer and bleaching gel adjacent thereto
US7040897May 23, 2003May 9, 2006Ultradent Products, Inc.Thin, flexible membrane dental trays and systems and methods utilizing such trays
US7048543May 27, 2003May 23, 2006Ultradent Products, Inc.A shaped dental bleaching device contains adhesion agent for increasing adhesion to teeth when moistened by saliva or water; polyvinyl pyrrolidone adhesives; kits; dentistry
US7052275Aug 22, 2003May 30, 2006Ultradent Products, Inc.Kits and methods for bleaching and desensitizing teeth
US7056118Aug 22, 2003Jun 6, 2006Ultradent Products, Inc.Compositions and devices having a tray-like configuration for delivering a medicament and methods of manufacturing and using such compositions and devices
US7059857Aug 8, 2003Jun 13, 2006Ultradent Products, Inc.Substantially solid desensitizing compositions and devices having a tray-like configuration and methods of manufacturing and using such compositions and devices
US7059858Feb 19, 2004Jun 13, 2006Ultradent Products, Inc.Universal tray design having anatomical features to enhance fit
US7074042May 27, 2003Jul 11, 2006Ultradent Products, Inc.increased adhesiveness to teeth when moistened with saliva or water; tray shape of the dental bleaching device facilitates placement of the device over a person's teeth
US7077646Aug 25, 2004Jul 18, 2006Jack Keith HilliardAutomated method for producing improved orthodontic aligners
US7192280Feb 19, 2004Mar 20, 2007Ultradent Products, Inc.Dental bleaching devices having a protective adhesive region
US7264471May 5, 2004Sep 4, 2007Ultradent Products, Inc.Methods and kits for bleaching teeth while protecting adjacent gingival tissue
US7452209May 2, 2005Nov 18, 2008Ultradent Products, Inc.Exoskeleton support for placement of a dental treatment strip
US7481653Feb 9, 2005Jan 27, 2009Oratech LcPreshaped thin-walled dental trays and methods of manufacturing and using such trays
US7625210Aug 9, 2004Dec 1, 2009Ultradent Products, Inc.Treatment devices for providing oral treatments and kits and methods that utilize such treatment devices
US8007277Aug 9, 2007Aug 30, 2011Ultradent Products, Inc.Non-custom dental treatment trays and mouth guards having improved anatomical features
US8074658Jun 12, 2003Dec 13, 2011Bite Tech, Inc.Composite performance enhancing tethered mouthguard
US8104324Jul 7, 2010Jan 31, 2012Bio-Applications, LLCIntra-extra oral shock-sensing and indicating systems and other shock-sensing and indicating systems
US8202091Aug 29, 2008Jun 19, 2012Ultradent Products, Inc.Dental treatment trays comprising silicone elastomeric material
US8277215Jun 5, 2006Oct 2, 2012Ultradent Products, Inc.Universal non-custom dental tray having anatomical features to enhance fit
US8292624Jul 17, 2009Oct 23, 2012Dent-Chew Brush LlcOral appliance
US8444413Aug 29, 2011May 21, 2013Ultradent Products, Inc.Non-custom dental treatment trays having improved anatomical features
US8453650Jul 3, 2012Jun 4, 2013MdmMouthpiece
US8468870Jan 11, 2012Jun 25, 2013Bio-Applications, L.L.C.Intra-extra oral shock-sensing and indicating systems and other shock-sensing and indicating systems
US8562954Oct 29, 2007Oct 22, 2013Discus Dental, LlcDental compositions with sensitivity relief
US8567408Aug 26, 2009Oct 29, 2013Bite Tech, Inc.Composite oral appliances and methods for manufacture
US8607798Jun 2, 2011Dec 17, 2013Shock Doctor, Inc.Custom mouthguard
US8652445Jun 30, 2005Feb 18, 2014Discus Dental, LlcDental compositions with sensitivity relief
US8677541Sep 25, 2012Mar 25, 2014Braun GmbhOral care products and methods of using and marking the same
US8689796May 17, 2011Apr 8, 2014Shock Doctor, Inc.Mouthguard with linear storage configuration
US8721332Jan 15, 2013May 13, 2014Ultradent Products, Inc.Non-custom dental treatment trays having improved anatomical features
US8739599Mar 2, 2011Jun 3, 2014Bio-Applications, LLCIntra-extra oral shock-sensing and indicating systems and other shock-sensing and indicating systems
US8739600Jan 11, 2012Jun 3, 2014Bio-Applications, LLCIntra-extra oral shock-sensing and indicating systems and other shock-sensing and indicating systems
US8936026 *Feb 6, 2012Jan 20, 2015Orvance Technologies, LlcOrthodontic appliance shield
US8936778Apr 10, 2007Jan 20, 2015Ultradent Products, Inc.Methods for bleaching and desensitizing teeth
US20120199138 *Feb 6, 2012Aug 9, 2012Hannapel Eric DOrthodontic appliance shield
USRE34196 *Aug 7, 1991Mar 16, 1993Dunhall Pharmaceuticals, Inc.Placing liquid-tight splint containing brightener around teeth
WO2000009036A1Jul 15, 1999Feb 24, 20003M Innovative Properties CoMedication delivery tray
WO2000044303A1 *Dec 22, 1999Aug 3, 20003M Innovative Properties CoCustom tray for delivering medication to oral structures
WO2001030263A1 *Jan 20, 2000May 3, 20013M Innovative Properties CoMedication retention assembly for oral delivery tray
WO2003015656A2 *Aug 15, 2002Feb 27, 2003Smithkline Beecham PlcOral care substance delivery strip
U.S. Classification433/25, 128/861, 601/139, 433/215, 15/167.2
International ClassificationA61C17/00, A61C19/06, A61C19/00
Cooperative ClassificationA61C17/00, A61C19/063
European ClassificationA61C19/06B, A61C17/00