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WO2008019870A1 - Procédé et dispositif destinés à blanchir les dents - Google Patents

Procédé et dispositif destinés à blanchir les dents Download PDF

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Publication number
WO2008019870A1
WO2008019870A1 PCT/EP2007/007293 EP2007007293W WO2008019870A1 WO 2008019870 A1 WO2008019870 A1 WO 2008019870A1 EP 2007007293 W EP2007007293 W EP 2007007293W WO 2008019870 A1 WO2008019870 A1 WO 2008019870A1
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WO
WIPO (PCT)
Prior art keywords
light
bleaching
soft structure
working head
bristle
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2007/007293
Other languages
German (de)
English (en)
Inventor
Bruno Pregenzer
Alfred Konzett
Johann Wernisch
Johann Pingitzer
Sebastian Geiger
Jörg WERNISCH
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Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of WO2008019870A1 publication Critical patent/WO2008019870A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/222—Brush body details, e.g. the shape thereof or connection to handle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/06—Implements for therapeutic treatment
    • A61C19/063—Medicament applicators for teeth or gums, e.g. treatment with fluorides
    • A61C19/066—Bleaching devices; Whitening agent applicators for teeth, e.g. trays or strips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0601—Apparatus for use inside the body
    • A61N5/0603—Apparatus for use inside the body for treatment of body cavities
    • A61N2005/0606—Mouth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0601—Apparatus for use inside the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0613—Apparatus adapted for a specific treatment
    • A61N5/062—Photodynamic therapy, i.e. excitation of an agent

Definitions

  • the present invention relates to a method of bleaching teeth in which a photoreactive and / or catalyable bleaching agent is applied to the teeth and activated with light.
  • the invention further relates to a bleaching apparatus for bleaching teeth according to such a method, with an insertable into an oral cavity, connectable with a handle working head, a bristle field and / or sponge-like soft structure for Deploying and triturating such a photoreactive and / or catalyzed bleaching agent on the teeth.
  • home-bleaching home-use method
  • in-office bleaching performed in the doctor's office
  • the home-bleaching process uses weak or stronger peroxide compounds, in which the reactive oxygen or radicals are chemically driven off. Due to the chemical process, which takes place without the action of light, the enamel surface is relatively strongly attacked due to the long bleaching time of up to several hours. Such processes are also referred to as chemical bleaching.
  • Lamp systems are usually used with high radiation power: eg halogen lamps with 380 to 500 nanometers after filtering with an intensity of 400 to 1000 mW / cm 2 or plasma arc lamps (argon, xenon) with wavelengths of 430 to 505 nanometers after filtering and an intensity from 1600 to 2000 mW / cm 2 .
  • Laser bleaching processes which are also classed as photothermal bleaching processes, use lasers with output powers of approximately 1 watt, which in comparison to a conventional 75 watt incandescent bulb causes a 100-fold increase in incident intensity. For this reason, the treatment times in laser bleaching process are about 30 to 60 sec. And a subsequent exposure time of a few minutes.
  • a toothbrush-like equipment which has a spangen- shaped irradiation head instead of the usual in a toothbrush bristle field.
  • This radiation head can be pushed over the teeth and irradiates the teeth with suitable light to achieve bleaching of the teeth.
  • this direct irradiation without the aid of a bleaching agent, however, the above-mentioned disadvantages exist.
  • toothbrushes are known in the prior art, which have lighting devices by means of which different areas of the oral cavity including the teeth can be illuminated for different purposes, cf. DE 20 2005 015767 IM, DE 20 2004 001004 U1, DE 20 2004 004628 U1, DE 295 17 758 U1 or US Pat. No. 5,030,090.
  • these known toothbrushes are not intended for bleaching the teeth;
  • the light sources used are also in terms of wavelength range and light intensity not suitable to bring about a tooth whitening.
  • the present invention is therefore based on the object to provide an improved method and an improved device of the type mentioned, avoid the disadvantages of the prior art and further develop the latter in an advantageous manner.
  • a time-saving, simple and familiar to the user handling the bleaching process is to be achieved, which nonetheless achieves an efficient tooth whitening without damage to the enamel and the gums.
  • the present invention proposes a one-step process the bleach is rubbed on the teeth and activated at the same time.
  • the bleaching agent is rubbed on the teeth with a bristle-field and / or sponge-like soft structure and activated during rubbing by light of suitable wavelength and intensity emitted on the soft structure.
  • a toothbrush-like bleaching apparatus is used whose working head has, on the one hand, a soft structure, in particular in the form of a bristle field.
  • the soft structure is suitable for absorbing a sufficient amount of the preferably pasty or gel-like bleaching agent and, as in the case of normal brushing, by applying the soft structure to the teeth and rubbing them onto the teeth.
  • the pressure-compliant soft structure is flexurally and compressively elastic to gently rub the bleach and to prevent irritation of the gums or even damage to the gums and the tooth surfaces.
  • the bleaching agent is simultaneously activated by the lighting device integrated in the working head or the soft structure and the light emitted by it.
  • the activation of the bleaching agent causing light is at least partially passed through the soft structure and radiated from the soft structure in particular at its working surface.
  • the soft structure may comprise a bristle field with a plurality of bristle tufts, wherein at least a portion of the bristle tufts or bristles combined into bristle tufts are designed as optical fibers.
  • the soft structure or the bristle field forms, as it were, a part of the illumination device. The latter is such that at least a portion of the light is coupled into the bristle tuft formed as a light guide, so that it can be forwarded by these and emitted at the free ends.
  • the entire bristle tufts can be used to transmit light and the light can be distributed evenly over the bristle tuft field.
  • an uneven light distribution over the bristle brush can also be achieved.
  • a lower light intensity can be provided at the edges of the soft structure than in the center of the soft structure in order to less strongly irradiate the gingiva coming into contact with the edges of the soft structure.
  • the soft structure has light channels in the form of preferably chimney-shaped recesses into which the illumination device also radiates light to activate the bleaching agent therein.
  • the chimney-shaped recesses need not have a geometrically regular shape as in a fireplace in the strict sense, but it may also be provided irregularly shaped light channels, which are advantageously open at least to the working surface of the soft structure, so that the bleach incorporated therein can be delivered.
  • the free spaces or recesses remaining between the bristle tufts can be used as light channels, i. the illumination device advantageously emits the light not only into the bristles but also into the interspaces.
  • the illumination device advantageously emits the light not only into the bristles but also into the interspaces.
  • the invention may be provided for this purpose at the bottom of the soft structure in the working head light exit openings, which may be formed in the form of material recesses, but especially in the form of translucent wall portions of the working head.
  • the bristle tufts are not fastened in the tufting process to the corresponding bristle carrier. Rather, alternative fasteners are provided free of anchor plate. For example, you can the bristle tufts glued or welded to the bristle carrier.
  • through holes may be provided in the bristle carrier, in each of which a bristle tuft is stuffed into it, so that it easily emerges on the opposite side;
  • the bristle tufts can be welded, for example, with the aid of a hot stamp, so that a favorable coupling of the light can be achieved in the bristle tufts.
  • the bristle tufts can each be held by an anchor plate, which sits in the walls of the recesses in the bristle carrier.
  • the bristles turned around the anchor plate are structurally altered in this envelope region, in particular, for example, melted or cast into a coupling-in material.
  • the portion of the bristle tufts turned over around the anchor plate advantageously has an efficient light coupling surface.
  • the light for activating the bleaching agent can basically be brought to the soft structure or the bristle field of the working head in various ways.
  • the illumination device may have a light source integrated into the working head.
  • at least one light source can be arranged under a support plate bearing the soft structure on the working head.
  • the light source under the support plate of the soft structure can thereby radiate the light directly into the bristle tufts which advantageously pass through the support plate.
  • the carrier plate of the soft structure may be at least partially translucent, so that the light emitted by the light source can pass through the carrier plate into the overlying soft structure, in particular the light channels provided therein.
  • the light source may comprise at least one LED, which is arranged in the working head. Preferably, several LEDs can be used, in particular if the soft structure has a larger area and / or a larger area is to be exposed to light.
  • the illumination device may have a reflector which throws the light emitted by the at least one light source largely completely onto or into the soft structure.
  • the reflector may for example consist of a mirrored film.
  • the reflector is arranged on a side of the light source facing away from the soft structure, in order to deflect light thrown in the wrong direction, as it were, toward the soft structure.
  • the lighting device may also have a light source in the handle or in a brush tube between the handle and the working head, advantageously with a light guide operatively connected to the light source between the light source and the working head is provided to the of Light emitted light directed to the working head.
  • This optical waveguide can in principle be designed differently, for example in the form of optical fibers integrated in the handle.
  • the light guide may also be formed by the handle and / or the brush tube itself.
  • the power supply of the light source advantageously takes place from the handle forth.
  • a power supply may be arranged, which is connected via suitable electrical connection means with the light source.
  • the power supply can for example consist of a preferably rechargeable power source in the handle.
  • the power supply arranged in the handle consists essentially of a cable connection and optionally a voltage converter or -regier.
  • the soft structure for applying and triturating the bleaching agent is designed replaceable.
  • the soft structure may be attached to an exchangeable removable carrier, which is detachable from the illumination device and can be releasably attached to the working head.
  • the handpiece of the bleaching apparatus may optionally be used by various persons, including the essential part of the working head; For this purpose, only every user sets "his" soft structure on the working head.
  • the bleaching device has a modular structure, wherein in particular a handpiece can be provided, can be placed on the various attachment parts, for example, different attachment parts for different users, but also different essay types, such as an attachment with a sponge-like soft structure, an attachment with a bristle field, an attachment with a radiation head or the like.
  • the bleaching apparatus can be adapted individually to the needs of the respective user, without the entire unit having to be replaced each time.
  • the handset on which various attachment parts can be placed be in the form of a flashlight, which can be used as a lamp itself without an attachment and at least one light source for emitting a light cone or a directed light beam path.
  • the light source may consist of one or more LEDs.
  • the light source may be associated with a reflector and / or a mirror, which focuses the light emitted by the lamp and / or throwing in a certain direction, as known in flashlights.
  • the handpiece advantageously comprises a body which, in the region of the light exit or the light emission, has a coupling section by means of which various attachment parts can be coupled.
  • a light source surrounding, annular Kupplungsst ⁇ ck be provided.
  • the handset formed as a flashlight includes not only the light source but also their energy supply, for example in the form of rechargeable batteries, as well as control and / or actuating means for controlling the light output.
  • the attachable to the handpiece attachment parts may comprise a preferably tubular support piece having at one end a coupling portion for coupling to the handpiece and the other end carries the respective working head for bleaching the teeth.
  • a soft structure of the aforementioned type can be provided as the working head.
  • the attachment part advantageously has, as part of its illumination device, light-conducting means which guide and / or direct the light coming from the pocket-lamp-shaped handpiece to the working head in order to let the light out and act on the teeth or bleaching agent to be bleached.
  • optical fibers or a light guide cable of the aforementioned type may be provided in the attachment.
  • a mirror in the attachment part, in particular at its working-head-side end, a mirror can be provided which deflects the light radiated through the brush tube and directs it to the working head or allows it to exit through the working head in the desired direction.
  • the illumination device is adapted to the bleaching agent with regard to its wavelength range and its light intensity in order to activate it in the desired manner when the bleaching agent is rubbed on the teeth. In principle, depending on the bleaching agent, different wavelength ranges may be required for this purpose. According to a preferred embodiment of the invention, the illumination device emits light in a wavelength range of 450 to 480 nanometers, preferably about 460 nanometers. In this wavelength range, a cooling of the irradiated bleach occurs.
  • the bleaching agent used contains at least one photocatalyst, so that the light activation of the bleaching agent can take place in the shortest possible time and in particular during the rubbing on the teeth.
  • Nanoparticles have the advantage that they have a large surface area and thus have favorable catalytic properties. In addition, they are available in large quantities and because of their small size, they have no negative mechanical properties for the tooth. Nanoparticles are particles with a diameter of about 1 nanometer to several hundred nanometers.
  • the photocatalyst is a semiconductor, wherein it has proven to be favorable in this case, when the nanoparticles or semiconductors from the group ZnO 2 , Si, ⁇ -Sn or T ⁇ O 2 come.
  • the nanoparticles are anatase.
  • Anatase is titanium dioxide with a cubic body-centered lattice, which has particularly favorable properties for the production of active oxygen.
  • the nanoparticles have a diameter of about 1 nanometer to about 1 micron. Due to the tooth structure, nanoparticles with a diameter of about 100 to 500 nanometers have proven to be particularly accessible and have proven to be ideal photocatalysts for releasing active oxygen or reactive radicals.
  • the radical generator is hydrogen peroxide and / or a Peroxydabspalter, it is advantageous if in the bleach, the hydrogen peroxide in the form of an aqueous solution in a concentration of 1 to 10%, preferably of about 5%.
  • the bleaching agent has hitherto already excellent properties, it is still favorable if, in addition, a thickening agent is present, it being particularly provided that the thickening agent is an acrylate.
  • a thickening agent makes it possible to form the bleaching agent as a gel or paste which is applied to the tooth.
  • the, for example, peroxidic substance can settle in the matrix of the gel and be ideally released there due to the photocatalytic reaction.
  • Peroxides have a strong tendency to decompose under high heat development: eg 2H 2 O 2 -> 2H 2 O + O 2 + 196.2 kJ. At room temperature, however, the decay rate is extremely low. One speaks of a practical resistance or a metastable state. Upon heating to higher temperatures, the peroxide decomposes rapidly, possibly explosively. onsartig. The large decay inhibition of H 2 O 2 is based on the fact that the first step of the thermolysis in an energy-consuming molecular cleavage in 2HO radicals consists (HOOH + 21 1 kJ -> 2HO).
  • H 2 O 2 HO + H 2 O 2 -> H 2 O + HO 2 , HO 2 + H 2 O 2 -> H 2 O + O 2 + HO
  • the decomposition rate of hydrogen peroxide can be greatly increased, so that may occur at room temperature stormy oxygen evolution and high-concentration solutions because of the strong caused by the H 2 O 2 -Thermolyse temperature increases even explosive decay.
  • the characteristic property of H 2 O 2 is in particular its oxidizing effect: H 2 O 2 -> H 2 O + O or H 2 O 2 + 2H + + 2e " -> 2H 2 O.
  • H 2 O 2 The normal potentials for H 2 O 2 are in acidic solution + 1, 76 volts, in alkaline solution + 0.87 volt. therefore, it is advantageous that the bleach material is located during use in the alkaline range and, therefore, causes only a slight chemical attack.
  • the H 2 O 2 in the gel in the specific case strongly diluted (about 5%), whereby a chemical attack is excluded even after very long treatment (over 1 hour) according to previous studies.
  • H 2 O 2 - + 2H + O 2 or H 2 O 2 -> 2H + + O 2 + 2e ⁇ The normal potentials for H 2 O 2 in acidic solution are +0.68 volts and in alkaline solution -0.07 volts. The reducing effect thus occurs only against pronounced oxidizing agents.
  • the bleaching of the teeth is primarily responsible for the decomposition of H 2 O 2 resulting atomic oxygen.
  • the normal potentials for atomic oxygen in acidic solutions are 2.42 volts, in basic solutions 1.59 volts.
  • a bleaching agent according to the invention When working in the basic range, a bleaching agent according to the invention has a low value of the normal potential for H 2 O 2 and a high value of the normal potential for oxygen. Thus, a low proportion of the chemical attack of the tooth substance is to be expected, but given a high oxidation rate for the destruction of the attachment or intercalation of the tooth. It is further provided that the nanoparticles based on the anhydrous bleach in a concentration (mass / mass) of about 1 to 90%, preferably in a concentration of 60 to 80%. More preferably, the mass fraction is about 75%. It has been found that with such high concentrations of nanoparticles, the oxygen delivery can be faster and thus the duration of treatment can be shortened.
  • the thickening agent is present in a concentration (anhydrous) of 10 to 20%, preferably about 17%. This is a cheap amount to make an ideal gel.
  • the alkaline component is present in a concentration (anhydrous) of less than 10%.
  • the light source may also be an argon laser, a KTP laser, a diode laser or a Nd-Yag laser or a CO 2 laser whose light is transmitted to the working head via suitable optical fiber cables intended soft structure is passed.
  • the aforementioned LED solution is preferred.
  • anatase particles are irradiated with light of a wavelength in the UV-near range, preferably at a wavelength of 380 to 500 nanometers, more preferably at a wavelength of about 460 to 470 nanometers.
  • Thermal damage to the pulp can not occur if the power of the required light sources is in the milliwatt to watt range.
  • the gel used for the catalytic bleaching is not changed by such irradiation.
  • the nanoparticles with semiconductor properties present in the bleach act as catalysts which upon irradiation produce active oxygen. serve.
  • the wavelength of the radiation is determined from the energy gap of the semiconductor and depends on how much energy has to be expended to excite an electron from the non-conductive band of the semiconductor into the conductive band of the semiconductor.
  • the energy consumed must be higher than this bandgap energy.
  • the most favorable wavelength at 380 to 500 nanometers is preferably 450 to 480 nanometers, which can be produced with LEDs (LED) on the market.
  • LEDs LED
  • the performance of these LEDs are in the milliwatt range and are sufficient to produce the required for the bleaching active oxygen.
  • a conventional curing lamp for so-called composites was used in the investigations carried out.
  • the bleaching results are comparable, ie it is also possible to use conventional curing lamps for the process according to the invention.
  • the following semiconductors or their nanoparticles lend themselves to the use of the method according to the invention: zinc oxide (band gap 3.2 eV) with an excitation wavelength of about 387 nanometers.
  • ⁇ -tin (with a band gap energy of about 0.08 eV) corresponding to an excitation wavelength of about 15 ⁇ m.
  • the laser radiation used When bleaching, the laser radiation used must be higher in energy than the band gap energy of the nanoparticles, ie the gel is excited at a lower wavelength than the bandgap energy.
  • conventional lasers could also be used for the above nanoparticles.
  • argon lasers (488 to 514 nanometers), KTP lasers (532 nanometers), diode lasers (805 nanometers), and Nd-Yag lasers (1064 nanometers) are available.
  • argon lasers (488 to 514 nanometers
  • KTP lasers (532 nanometers)
  • diode lasers (805 nanometers)
  • Nd-Yag lasers (1064 nanometers
  • 1 is a schematic flow chart for explaining the operation of the bleaching agent provided with a photocatalyst and its reaction to light irradiation;
  • FIG. 2 shows a perspective, schematic representation of a bleaching device designed as an electric toothbrush according to a preferred embodiment of the invention
  • FIG. 3 is a sectional view of the brush head of the toothbrush of FIG. 2, showing the light source under the bristle carrier disposed in the brush head, FIG.
  • FIG. 4 shows a perspective, schematic representation of a bleaching device with a modular construction comprising a hand-held part designed as a flashlight and an attachment part designed as an attachment brush according to a further preferred embodiment of the invention
  • Fig. 5 a fragmentary sectional view of the attachment part of Fig. 4, showing the deflection mirror in the region of the working head.
  • Fig. 1 The process shown in Fig. 1 is intended to illustrate the reaction mechanism and the catalytic cycle required for bleaching.
  • a first step light in the UV-near region strikes, for example, an anatase particle. Due to the semiconductor property and the excitation by the light, an electron is excited from the non-conducting band into the conducting band. The formation of an electron in the conduction band and a hole in the nonconducting band occurs. Both the electron and the electron gap migrate to the Surface. There may be a transfer of the electron to atmospheric oxygen and the formation of a Superoxidradikals or the electron gap accepts an electron of a hydroxyl ion in aqueous solution.
  • the Hydroxylio- nen are due to the autoprotolysis of water or the basic component in sufficient quantity. Subsequently, this hydroxyl radical catalyses the H 2 O 2 decomposition. Now, if a basic component is present, the left side of the figure, so the formation of the hydroxyl radical is favored. The reaction with the superoxide radical O 2 is of secondary importance. If the nanoparticles are too large, recombinations of the electrons and electron-hole or gap pairs occur within the particles and thus the generation of radicals in the solution is prevented. Therefore, even larger particles, for example when using conventionally purchased finely powdered titanium dioxide, have no bleaching effect. The lifetime of radicals in basic solution is also higher than in an acidic environment. Therefore, the light basic environment is more preferable. Titanium dioxide nanoparticles are semiconductors having a bandgap energy of about 3 eV, which corresponds to an excitation wavelength of about 400 nanometers.
  • the activation of the bleaching agent can advantageously take place by means of a bleaching device 2 designed as an electric toothbrush 1, as shown in FIG. 2.
  • This toothbrush 1 comprises a handpiece 3, which is connected via a brush tube 4 with a working head 5.
  • Said working head 5 carries as soft structure 6 a bristle field 7, which in the illustrated embodiment has substantially a round contour and comprises a plurality of bristle tufts 8.
  • the bristle tufts 8 mentioned are mounted on a substantially plate-shaped, in the illustrated embodiment circular bristle carrier 9, which is movably mounted on the brush tube 4 and the working head 5 connected thereto.
  • the bristle carrier 9 can be rotatable about an axis of rotation which extends transversely to the longitudinal direction of the brush tube 4 and substantially parallel to the longitudinal direction of the bristle tufts 8.
  • a non-illustrated, known drive may have an electric motor in the handpiece 3, which is powered by a likewise accommodated in the handpiece 3 battery ago and on the other hand connected via a transformer, also not shown in the brush tube 4 with the bristle carrier 9, to drive this rotationally oscillating about said rotation axis 10.
  • a light source 11 of a lighting device 12 by means of which the bristle field 9 and thus to be worn on the teeth bleach the bristle carrier 9 is irradiated therethrough with activating light.
  • the light source 11 comprises a plurality of LEDs 13 which are arranged on a common carrier plate.
  • the said light source 11 is supplied via a supply line 14 with electrical energy. Said supply line 14 may extend in the brush tube 4 and run into the handle 3, to be connected there to the power source provided therein.
  • the light source 11 integrated in the working head 5 irradiates the underside of the bristle carrier 9.
  • light is thereby coupled into the bristle tufts 8.
  • the bristle tufts 8 are fastened in passage openings in the bristle carrier 9, for example glued or welded therein.
  • the light source 11 facing ends of the bristle tufts 8 serve as light entrance, while the free ends of the bristle tufts 8 serve as a light output, from which the injected light is emitted.
  • the bristle tufts 8 themselves serve as optical fibers.
  • the bristle carrier 9 itself at least partially, in particular between the bristle tufts 8 translucent and / or light-conducting, so that from the light source 11 and the remaining between the bristle tufts 8 spaces of the bristle field 7 are illuminated with light.
  • bleach incorporated between the bristle tufts 8 can be activated, while with the bristle field 7 the bleaching agent is rubbed on the teeth to be treated.
  • a reflector 15 is integrated in development of the invention in the working head 5, in the illustrated embodiment on the side facing away from the bristle field 7 of the light source 11th
  • the reflector 15 may consist of a mirrored coating on the inside, for example in the form of a coated film.
  • the bristle carrier 9 is made interchangeable with the attached bristle field 7. He can in a known manner one Have coupling portion, by means of which it is detachably fastened to the working head 5. The lighting device 12 together with the light source 11, however, remains in the working head 5, so that only the bristle field 7 is exchanged.
  • the bleaching device 2 comprises a hand-held part 3 in the form of a flashlight, onto which attachment part 40 designed in the form of a clip-on brush can be placed.
  • the attachment part 40 comprises a brush tube 4, which carries a working head 5, similar to the previously shown embodiment as a soft structure 6 comprises a bristle field 7 with a plurality of bristle tufts 8, which are mounted on a plate-shaped bristle carrier 9.
  • this attachment 40 can be replaced and have a different structure. It forms, so to speak, a removable part, which can be placed on the aforementioned handle 3.
  • the handpiece 3 comprises a light source 30 which is arranged on the end side or aligned with the end face of the body of the handpiece 3 and which may advantageously be in the form of an LED arrangement which emits a light cone 31 or light beam path 31 of suitable wavelength at the end.
  • the light source 30 may be associated with an optical system, not shown in more detail, which may have, for example, a suitable reflector and / or mirror and / or be supplemented by lens optics for focusing the emitted light beams.
  • a power supply in the form of rechargeable batteries can furthermore be accommodated in a manner known per se for a flashlight, which feeds the abovementioned light source 30 via a control device and in particular can include a switch 32, by means of which the light source 30 is switched on and off ,
  • the handpiece 3 has in the region of the light source 30, a coupling portion 33 which in the illustrated embodiment as an annular groove is formed, but also in the form of other positive and / or frictional connection means, in particular quick connection means may be formed.
  • the attachment part 40 provided coupling portion 41, which is formed in the illustrated embodiment as a flared connection flange, see. 4, and an end-side end portion of the brush tube 4 forms.
  • the light emitted by the light source 30 is transmitted through to the working head 5 in order to be emitted in the region of the working head 5 in a defined direction 10, cf. FIG. 5.
  • a deflecting mirror 32 is provided in the working head 5, which guides the light 31 through the transparent bristle carrier 9 and through the bristle tufts 8.
  • the inside of which may be formed in a mirrored manner optionally with a suitable shaping of the working head 5 can be dispensed with a separate deflecting mirror 32, when the inner wall of the working head 5 is curved in a suitable manner and has a Veradorung that emits the light in the desired exit direction 10.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Brushes (AREA)

Abstract

L'invention concerne un procédé destiné à blanchir les dents ainsi qu'un dispositif de blanchiment se présentant sous la forme d'une brosse à dent dont la tête de travail comprend, d'une part, une structure souple, se présentant en particulier sous la forme d'un champ de poils, éventuellement sous la forme d'une structure en éponge ou sous forme de dalle de type bloc, et d'autre part, d'un dispositif d'éclairage, au moyen duquel l'activation de l'agent de blanchiment par la lumière sur la structure souple est répandu sur l'agent de blanchiment. La structure souple peut recevoir une quantité suffisante d'agent de blanchiment se présentant sous la forme d'une pâte ou d'un gel, permet l'application dudit agent de blanchiment grâce à un mouvement de va et vient sur les dents ainsi qu'une action de frottement de l'agent sur les dents. De manière avantageuse, la structure souple déformable sous la pression est fabriquée de manière à présenter une grande élasticité lors d'une courbure ou de l'application d'une pression, ce qui permet de frotter doucement l'agent de blanchiment et d'éviter les irritations des gencives ou même d'endommager la gencive et la surface des dents. Le dispositif d'éclairage intégré à la tête de travail ou à la structure souple ainsi que l'éclairage produit par celui peuvent alors activer l'agent de blanchiment.
PCT/EP2007/007293 2006-08-17 2007-08-17 Procédé et dispositif destinés à blanchir les dents Ceased WO2008019870A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1384/2006 2006-08-17
ATA1384/2006A AT504150B1 (de) 2006-08-17 2006-08-17 Verfahren und vorrichtung zum bleichen von zähnen

Publications (1)

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WO2008019870A1 true WO2008019870A1 (fr) 2008-02-21

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PCT/EP2007/007293 Ceased WO2008019870A1 (fr) 2006-08-17 2007-08-17 Procédé et dispositif destinés à blanchir les dents

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Country Link
AT (1) AT504150B1 (fr)
WO (1) WO2008019870A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8011923B2 (en) 2007-09-01 2011-09-06 Fotona D.D. Method for operating a laser system for bleaching teeth
USD723282S1 (en) 2014-03-17 2015-03-03 Gosmile, Inc. Toothbrush head
USD776936S1 (en) 2015-06-23 2017-01-24 Gosmile, Llc Toothbrush head
USD778061S1 (en) 2015-06-23 2017-02-07 Gosmile, Llc. Toothbrush
USD787189S1 (en) 2014-03-17 2017-05-23 Gosmile, Llc Toothbrush

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EP0593375A1 (fr) * 1992-10-15 1994-04-20 LASER MEDICAL TECHNOLOGY, Inc. Dispositif d'hygiène dentaire
DE29517758U1 (de) 1995-11-07 1996-02-22 Gnathodent Struensee Dentallab Vorrichtung zur Mundpflege
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DE202004004628U1 (de) 2004-03-25 2004-07-29 Wagner, Gertrud Zahnbürste mit beleuchtetem Borstenfeld
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DE202004001004U1 (de) 2004-01-23 2005-03-24 Merlaku Kastriot Zahnbürste
DE202005015767U1 (de) 2005-10-07 2006-01-05 Belski, Wladimir Zahnbürste

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5030090A (en) 1989-08-14 1991-07-09 Omron Corporation Optical toothbrush and method of use
EP0593375A1 (fr) * 1992-10-15 1994-04-20 LASER MEDICAL TECHNOLOGY, Inc. Dispositif d'hygiène dentaire
DE29517758U1 (de) 1995-11-07 1996-02-22 Gnathodent Struensee Dentallab Vorrichtung zur Mundpflege
US20040193235A1 (en) * 2001-11-29 2004-09-30 Altshuler Gregory B. Multi-directional oral phototherapy applicator
US20040019990A1 (en) * 2002-08-01 2004-02-05 Farrell Lawrence W. Enhanced dental hygiene system with direct UVA photoexcitation
DE20307294U1 (de) 2003-05-09 2003-10-09 Horstmann, Uwe, 38304 Wolfenbüttel Optische Zahnbürste
WO2005023144A2 (fr) * 2003-09-09 2005-03-17 The Procter & Gamble Company Brosse a dents electrique et elements echangeables
WO2005023143A2 (fr) * 2003-09-09 2005-03-17 The Procter & Gamble Company Brosse a dents electrique luminescente et procedes d'utilisation
DE202004001004U1 (de) 2004-01-23 2005-03-24 Merlaku Kastriot Zahnbürste
DE202004004628U1 (de) 2004-03-25 2004-07-29 Wagner, Gertrud Zahnbürste mit beleuchtetem Borstenfeld
DE202005015767U1 (de) 2005-10-07 2006-01-05 Belski, Wladimir Zahnbürste

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8011923B2 (en) 2007-09-01 2011-09-06 Fotona D.D. Method for operating a laser system for bleaching teeth
USD723282S1 (en) 2014-03-17 2015-03-03 Gosmile, Inc. Toothbrush head
USD787189S1 (en) 2014-03-17 2017-05-23 Gosmile, Llc Toothbrush
USD776936S1 (en) 2015-06-23 2017-01-24 Gosmile, Llc Toothbrush head
USD778061S1 (en) 2015-06-23 2017-02-07 Gosmile, Llc. Toothbrush

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AT504150A1 (de) 2008-03-15

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