803results about "Dental floss" patented technology

A device and a method for delivering UVA light to the mouth in which a photocatalytic agent is distributed in the mouth and a UVA light source is located contiguously to the head of the device so that the photocatalytic agent distributed in the mouth is efficiently activated by UVA light produced by the device. The UVA light delivery device of the invention may be, inter alia, a toothbrush, a tongue scraper, an interdental toothbrush, a denture brush, a flossing device, a dental hand tool, or a wand adapted exclusively to applying UVA light to photocatalyst coated surfaces.

PCT No. PCT / US97 / 17534 Sec. 371 Date Feb. 3, 1999 Sec. 102(e) Date Feb. 3, 1999 PCT Filed Sep. 30, 1997 PCT Pub. No. WO98 / 14133 PCT Pub. Date Apr. 9, 1998A novel dental floss and gum massager made in the form of a strand, a tape or a sheet of polymeric material, said sheet having selectively positioned multiple sized holes for inserting though and holding by the fingers of the hands. The floss provides substantially very little constriction of blood flow surrounding the fingers as the floss is held taught and the peripheral edge of the floss is being manipulated and worked by the gripping, pulling, pushing, deforming, and guilding back and forth actions of the fingers during massaging of the gums and flossing of the teeth.

Novel gels and articles are formed from one or more copolymers having at least one poly(ethylene) components and high levels of one or more plasticizers, said gels having an amount of crystallinity, glassy components, and selected plasticizers sufficient to achieve improvements in one or more physical properties including improved crack propagation resistance, improved tear resistance, improved resistance to fatigue, resistance to catastrophic failure, and exhibiting high strain under elongations not obtainable in amorphous gels which high strain making the gel suitable for use as film layers for artificial muscles.

Disclosed are coated multifilament dental devices overcoated with biofilm-responsive, imbedded, particulate abrasives.

An electric device which removes supragingival and sub-gingival plaque and undesirable debris from the interproximal surfaces between teeth is described. This device utilizes a combination of sonic energy and dental floss which is secured between two tines, the tines being part of a flexible fork which is removable from a powered handle which contains batteries and an electric motor. The electric motor, which is coupled to an eccentrically mounted disc on an output shaft, revolves at sonic frequencies which in turn generates sonic energy that is transmitted to the flexible fork which holds the floss. The sonic energy is synchronized and in tune with the natural resonance frequencies of the fork thereby stimulating the resonance action of oscillating vertical and / or elliptical movement of the fork which in turn imparts cleaning energy to and enhances the cleaning properties of the floss. The flexible fork may be removed from the handle and replaced with other dental cleaning tools such as a brush, a pick, and / or a tray attachment.

Monofilament dental floss / tape of polymer material including fluoride and polishing powder the dental floss / tape (1) being ribbon-shaped and having material properties that enable it to be stretched to increase its length by at least 100% and also to reduce its cross-sectional area by up to ten times, and also a method fot the use of monofilament polymer dental floss / tape (1) by preparing a suitable length of dental floss / tape (1) for cleaning the teeth , by extending it to a reduce cross section so that the area of the whole piece of floss / tape can thereafter be used to clean the teeth distally and / or mesially.

A system for repositioning teeth comprises a plurality of individual appliances. The appliances are configured to be placed successively on the patient's teeth and to incrementally reposition the teeth from an initial tooth arrangement, through a plurality of intermediate tooth arrangements, and to a final tooth arrangement. The appliances comprise at least 200 layers.

A dental appliance has an auxiliary feature bonded to a polymeric surface of a shell body with a compartment for receiving teeth. The auxiliary feature is bonded with a light-curable acrylic adhesive comprising acrylate base material and photoinitiator. Auxiliary features include colored layers and, decals, reinforcing features and auxiliary dental devices. A light-curable acrylic adhesive may include a thiol monomer and / or a pigment. A dental appliance may have a shell body with a bonding surface adapted for attachment of an auxiliary feature, such as prepared by a pretreatment to mar the surface of to impregnate the surface with a reactive adhesion promoter.

PCT No. PCT / US94 / 04278 Sec. 371 Date May 14, 1996 Sec. 102(e) Date May 14, 1996 PCT Filed Apr. 19, 1994 PCT Pub. No. WO95 / 13851 PCT Pub. Date May 26, 1995Dynamic, spinning, twisting string toys referred to as "humdingers" are disclosed. The toys include at least one highly elastic gel body having at least two holes extending through the body along a selected axis of rotation. The holes are treaded with a string(s) which are twisted and untwisted alternatively by the pulling and releasing action of the strings. The holes are provided with means to resist the shearing forces of the twisting strings. The dynamic effect of the extreme high centrifugal and shearing forces generated during play causes the gel bodies to change shape during spinning. Soft gels or low strength materials can also be substituted in place of the highly elastic gel body provide the body reinforced with shear resistant means to prevent cutting by the twisting and untwisting actions of the string(s).

The present invention provides a functionally graded glass / ceramic / glass sandwich system for use in damage resistant, ceramic and orthopedic prosthesis. The functionally graded glass / substrate / glass composite structure comprises an outer residual glass layer, a graded glass-ceramic layer, and a dense interior ceramic. The functionally graded glass / substrate / glass composite structure may further comprise a veneer on an exterior surface. The present invention also provides a method for preparing a functionally graded glass / ceramic / glass sandwich system. A powdered glass-ceramic composition is applied to the accessible surfaces of a presintered zirconia substrate to thereby substantially cover the substrate surfaces. The glass of the composition has a CTE similar to that of the substrate material. The glass-ceramic composition is infiltrated into and densifies the substrate by heating the assembly to at least the sintering temperature of the substrate.

Embodied in the flexile forms of both an endless-loop and as a linear-tape, a unique tooth flossing device for cleaning away bacteria between the teeth is set forth. Comprised of a nontoxic extrusion-molded thermo-plastic polyurethane having particular properties of excellent elasticity, almost film-like guage of thickness, and a natural random surface-texture serving to aid the flossing procedure. In use, a FLOSS-LOOP(TM) is simply held in the user's thumb-&-forefinger of both hands, so as to pre-stretch "thin" that portion to be slid vertically between the teeth. The exceptionally high stretched tensile-strength of this device enables it to endure the duress of insertion between the teeth, yet once interposed interstitially adjacent the gum-line, the release of excess tension upon the tensioned segment of the loop enables it to resume it's natural thickness-guage of approximately 0.325 mm(0.0128-inch). This novel variable-guage capability of the device, making it able to more effectively burnish away substances from the tooth and sulcus of the gum-tissue during it's thicker guage modality; then again be retensioned to approximately only 0.200 mm-guage for easy interstitial removal. Either version of the device may be coated with various agents effective in combating diseases of the teeth and gums.

A method of making a facing for a dental restoration. The method comprises the step of providing a facing precursor from which the facing is obtainable, and wherein the facing precursor is comprised of an open-celled material. The method provides for efficient manufacturing of dental restorations with optimized characteristics.

The present invention provides an article, at least part of it being coated by inorganic fullerene-like (IF) nanoparticles or composite containing such nanoparticles. Preferably, the invention provides an article made of metal, for use in dentistry or medicine e.g. archwire, needle or catheter, having a friction-reducing film, and methods for coating such articles with a friction-reducing film.

A floss pick including a body with a handle and a head having a length of floss therein. The handle defines an aperture with a toothpick member disposed therein. The toothpick member is connected to the handle by first and second bridge members. In a first instance, the bridge members are broken to detach the toothpick member. In a second instance, the bridge members are twisted to pivot the toothpick member from a non-use position to a use position where it is disposed at an angle relative to the body. The toothpick member is pivoted by engaging a terminal end thereof with an index finger of the hand in which the body is held. The angle of the toothpick member relative to the body is adjusted using the index finger to permit picking of the teeth in any region of the user's mouth without changing hands.

The present invention includes monofilament dental tapes for removing plaque and / or food debris from interdental spaces of a mammal, which dental tapes have a core body with an aspect ratio of greater than about 5:1 and a first cleaning surface and a second cleaning surface opposite the first cleaning surface, where at least one of the first and second cleaning surfaces includes a plurality of ribs disposed along the length thereof, and where the ratio of the width of the dental tape to the thickness of the dental tape is from about 4:1 to about 25:1.

A novel dental device is disclosed for facilitating oral hygiene. The device includes a light source and a light guide, where light from the light source is propagated through the light guide so that it refracts from the end thereof. Through this refraction it at least partially illuminates bristles, or dental floss or a dental pick and in use illuminates, at least partially, teeth and gums within the mouth. Preferably the dental device utilizes a light source of such a wavelength that facilitates killing of bacteria.

An improved dental tape treated with a substantive coating containing a crystal control substance, wherein said coating is: saliva soluble, substantially crystal-free, with a flaking value of less than about 20 and a release value of about 100.

A dental floss device includes a handle having a head piece and a disposable holder for a length of dental floss. The holder includes a base portion and a pair of spaced-apart jaws extending from the base and which extend to embrace the head piece of the handle when the holder is in a correct alignment configuration with respect to the handle. The device has an interlock which ensures that the holder can be interengaged with the head piece only when the holder is correctly aligned with the head piece. The interlock includes a head interlock part provided by interlock grooves and a holder interlock part provided by corresponding interlock tongues. There are two interlock grooves and corresponding interlock tongues which slidably interengage when the holder is correctly aligned with the head piece. If the holder is turned so that it is not correctly aligned with the head piece, the interlock tongues of the holder prevent engagement of the holder with the head piece. Thus there is no risk that a user will incorrectly align and engage the dental floss holder with the head piece.

A dental floss holder includes an integral interproximal pick having a plurality of outwardly extending nubs. In one embodiment, the dental floss holder includes a handle having a first portion and a second portion. A pair of arms extend from the first portion with a strand of dental floss stretched therebetween. An interproximal pick extends from the second portion. The interproximal pick includes a plurality of nubs that extend outwardly from the pick. The handle, arms and interproximal pick may be a single, integrally molded piece.

The present invention provides an advanced water flosser utilizing a direct water source, such as, but not limited to, an attachment to a shower head, that also may embody a reservoir and / or compartment capable of introducing other desirable substances designed to enhance the teeth cleaning process, such as, but not limited to fluoride, antibiotics, mouthwash, whiteners and the like.

Dental floss that includes at least one filament made of spider silk.

A shred resistant, ultra-high molecular weight polyethylene, micromesh interproximal device produced by fibrillating and slitting stretched polyethylene film having a tensile-strength from between about 0.7 GPa and about 5 GPa, where said polyethylene has an intrinsic viscosity of from between about 5 and about 50 dl / g and wherein said resultant micromesh tape is coated with an oral care substance at from between about 10 and about 120 mg / yd.

A device for the application of light treatment at a body structure is provided. The device could also be referred to as (dental) floss and be used for body structures in an oral cavity. The device distinguishes a container and a filament. The container hosts one or more light sources each capable of delivering a light beam with a unique light treatment. A user could select between the different light sources and / or parameters. The filament is a strand or fiber of a material transparent to the light beam. The filament is optically connected to a light source (or selected light source) such that the light beam could radiate through the filament at a body structure. The filament could be used in direct or not in direct contact with a body surface as long as the light treatment can be applied to the body structure.

A dental flossing device is characterized by a flossing circuit comprised of a flossing supply spool and a take-up spool mounted to a housing. The floss feeds from the supply spool along a pair of prongs forming a fork extension of the handle and is stretched across the prongs and appropriately tensioned to be inserted into a users mouth for flossing. To maintain tension, a pair of ratchet pawls are jointly engageable with a ratchet mounted for co-rotation with the take-up spool. The pawls are offset relative to the ratchet teeth to ensure appropriate tension. Tension on the supply spool side of the flosser is achieved with a tension arm in constant engagement with tension teeth co-rotatably mounted with the spool. When a floss advancing trigger is not depressed, a brake pawl formed at one end of the trigger is spring biased into locking engagement with these teeth while the tension arm assures proper tension on the supply side. In an alternative preferred embodiment, only one tensioning ratchet pawl engages the ratchet mounted for co-rotation with the take-up spool. A different ratchet pawl, mounted to one end of a ratchet arm pivotally secured to the flosser housing beneath the ratchet, is engaged by the trigger to drivingly contact the ratchet to rotate the take-up spool. In this latter embodiment, the brake pawl is replaced with a projection formed on the trigger that is adapted to engage the supply spool tensioning ratchet to lock the ratchet in the released position of the trigger to prevent supply spool rotation and maintain the floss circuit in a tight condition.

A dental floss holder including: a base portion; a pair of spaced-apart jaws extending from the base portion to accommodate a length of dental floss there-between; the spaced-apart jaws having at least one cavity for loading a composition containing flavor and / or a chemotherapeutic agent; and at least one flange for each cavity is disclosed. The dental floss holder provides an improved means for retaining flavor and or chemotherapeutic compositions within the cavity until the dental floss holder is used.

Together with other accessory products, includes a mixture of ion-exchange resins, cationic and anionic, charged with Ca2+, F- and PO43- ions, in an approximate molar ratio of 2:1:1, respectively. Particularly preferred is a material in which the resins also have a charge of Zn2+ ions representing a proportion of less than 1%, preferably close to 0.2% of the dry weight of the resin. The preferred resins are those whose base is cross-linked polystyrene with 2-14% divinylbenzene. The material is useful as first filler in the treatment of caries, especially deep caries, leading to remineralization of the dentin with a composition very close to the original composition, together with high microhardness. It is also useful as a component of dentifrice products such as pastes, elixirs and dental floss.