WO2013120155A1

WO2013120155A1 - Tooth-brushing assembly, with photocatalytic resources, composed of a brush and toothpaste

Info

Publication number: WO2013120155A1
Application number: PCT/BR2012/000038
Authority: WO
Inventors: Francisco José DUARTE VIEIRA
Original assignee: Duarte Vieira Francisco Jose
Priority date: 2012-02-13
Filing date: 2012-02-13
Publication date: 2013-08-22

Abstract

A toothpaste in the form of a gel, foam, spray or any other form of presentation, containing nanoscale and/or nanostructured particles, such as open or closed nanotubes, lamellar or tubular crystalline structures, with single or double walls, which are rolled up on themselves or spatial, closed and of large surface area, such as fullerenes; B - a toothpaste in the form of a gel, foam, spray or any other form of presentation, containing fluorescent substances in any colours, in isolation or in mixtures, in any proportions, of various hereof, which are capable of fluorescing when excited by frequencies within the light spectrum between 400 nm and 800 nm wavelength, the weight of such substances varying in accordance with the molecular weight and the efficiency in fluorescing and following the "quantum satis para" industrial addition specification. A glove, body or toothbrush handle including, at the end thereof that receives the replaceable bristle supports, laser- and/or LED-emitting diodes. A glove, body or toothbrush handle that has, within, a Lenz and Faraday generator unit. A glove, body or toothbrush handle, the production materials of which have added fluorescent substances and nanoscale particles. Bristles with nanoparticles that include nanoscale particles that generate heterogeneous photocatalysis and fluorescent substances.

Description

"DENTAL BRUSHING ASSEMBLY WITH PHOTOCATALYTIC RESOURCES, COMPOSED BY BRUSH AND DENTIFICATION."

Fields of this Patent:

• Oral hygiene with microbicidal substances that do not select resistant strains;

• Microbicidal oral hygiene generated by nanometer particles excited by visible light from LEDs or laser;

• Toothbrushes generating enough electrical power for heterogeneous photocatalysis through back and forth Lenz and Faraday generators;

• Replaceable toothbrushes and bristle holders made of plastic with added nanometer particles;

• Toothpastes with additions of nanometer particles and fluorescent substances.

State of the art.

The teeth are the first human organs to die, even though the other organs are alive.

Are the teeth the most fragile of human organs?

If we consider the absence of teeth, especially frontal teeth, in the skulls of 5,000,000-year-old hominids unearthed by paleontologists, the toothless mouths of eighteenth-century European nobles, and much of today's world population, the answer is yes.

But if we consider the exposure of teeth from birth to the most violent chemical, thermal, mechanical and bacterial aggressions, our perspective can change radically and the answer will be: - No, teeth are the most resistant organs of the human body.

In fact, except for teeth-breaking injuries, only a little hygienic care can keep human teeth healthy and functional throughout our lives.

Until about 100 years ago, however, tooth loss could be regarded as the most democratic of human misfortunes: - it reached equally rich and poor, educated and illiterate, the proletarians and the poor. potentates.

Except in the case of a rare genetics, with which certain individuals can maintain beautiful and strong dentitions with minimal care over a long life, humanity has learned that teeth need hygienic care.

Shortly after World War I, Americans began conquering markets for their toothbrushes and toothpaste with educational advertising and images of the divas and heartthrobes with their dazzling smiles, that is, beyond information on how to do hygiene, the desire for beauty overwhelmed consumers.

Thus, based on hygiene and beauty, the largest of the values of personal image in the contemporary world was formed: - well-groomed dentition.

Dentistry, from the last half of the last century, has made numerous achievements in restoring lost dentition while governments were active in the area of hygiene as a way to prevent tooth disease.

Teeth can withstand the enormous mechanical stresses required to chew harder foods like meat, seeds and certain fruits; They also support large variations in food temperature and pH, but are fragile in the face of bacterial activity, which consumes them through a process called caries formation and gum disease.

The human being is born with a provisional dentition that begins to fall from 5 years, in a process that lasts until about 10 years, when it is replaced by the definitive dentition, which, except for artifices, once lost, does not reconstitute itself. .

With the current achievements of stem cell biology, it is possible that within a decade we can regain the third natural dentition through odontoblasts; However, for a century now we have the behavior defined: - "teeth, to have them forever, take care of them every day!".

Just as medicine and the pharmaceutical industry have doubled human life expectancy over the last century, Pharmaceutical and industrial dentists continue to be researched and created to provide the market with effective dental care products sufficient for the maintenance of dentition for life.

Criticism of the state of the art.

Notwithstanding the microbicidal effects of nanometer particles, as revealed by research in laboratories around the world, the State of the Art does not record their use for oral hygiene except for nanometer particles partially titrated on their surfaces. , so that each particle constitutes an unoxidized Titanium Nitride (TiN) core, covered by its oxidized Titanium Dioxide surface.

Brief initial reference on nanometric particles and heterogeneous photocatalysis as sources of microbicidal ions.

Over the past twenty years, in research labs around the world, scientists have been plunging into research in a surprising new field: nanotechnology.

One of the first and most promising findings of nanotechnology was that ultraviolet-irradiated Ti0 ₂ nanoparticles manifested the phenomenon of heterogeneous photocatalysis, acting as a catalyst that creates, from the decomposition of the water molecule, the radical Oxidrila, which It is strongly oxidative of organic matter and, particularly as it is not an enzymatic phenomenon, exerts strong microbicidal effects without selecting resistant strains.

Soon after the initial discovery, scientists identified new nanometer particles and began creating new ones, which continues so far, so there are currently hundreds of them.

Figure 3 is a graph showing the radiant energy of sunlight as a function of each wavelength and showing a difference in catalytic activity of doped Titanium Dioxide particles under visible light compared to a nanometer particle of the same material, but not doped and that It only manifests such a phenomenon under ultraviolet light, which is harmful to human tissues.

Advances to the State of the Art brought by the "DENTAL BRUSHING SET, PHOTOCATALYTIC RESOURCES, BRUSH AND DENTIFICATION", object of this Patent.

The "Dental Brushing Set, with Photocatalytic Resources, Brushing and Densification" object of this Patent, is an advance of the State of the Art and its innovations, which can be combined in several ways, are as follows:

A - A gel, foam, spray, or any other form of toothpaste containing nanometric and / or nanostructured particles such as open or closed nanotubules, double or single walled lamellar or tubular crystalline structures closed or large surface areas such as fullerenes and especially fullerene C60 which has microbicidal and antiviral activity, whether or not these particles can be doped and occur purely or in mixtures of doped and undoped particles, preferably titanium dioxide nanoparticles doped with about 0.5 wt% Iron, or mixed in any suitable proportions of several of them - except only Titanium Nitride particles whose surfaces have been oxidized to Titanium Dioxide - to economically and practically produce heterogeneous photocatalysis for microbicidal effects, effective against viruses, fungi, bacteria and protozoa, when struck by electromagnetic radiation emitted by laser-shaped lights emitted by the diode or laser diodes and / or leds present in the toothbrush cables, within the range of 400 nm to 800 nm. wavelength, where the weight of the nanometer particles added varies according to the nature and efficiency of these being between 1 and 100 micrograms per gram of toothpaste;

B. A toothpaste in the form of gel, foam, spray, or any other presentation containing fluorescent substances of any kind. colors, alone or in mixtures, in any proportion, of any of these, capable of generating fluorescence when excited by frequencies within the range of 400 nm to 800 nm wavelength, the weight of such substances varying according to molecular weight and fluorescence generating efficiency and follows the industry standard for quantum satis addition;

C - A toothpaste containing at the same time nanoparticles and fluorescent substances as described in items "A" and "B" above;

D - A handle, body or toothbrush handle - hereafter referred to in this Patent Report simply as a handle - containing at its end the replaceable bristle holders, laser diodes and / or leds, whether single or any number, and may operate in isolation or in combination, capable of generating lights of any color within the light spectrum of 400 nm to 800 nm, in any proportion of the wattages of such lamps, depending on the varying wattages of these lighting devices, these are placed in such positions that illuminate the areas of the interior of the mouth being brushed with the maximum focus of the available light power to generate said heterogeneous photocatalysis; E - A handle, body or toothbrush handle, as in item "D" above also containing, inside, a Lenz and Faraday generator set, consisting of a magnet that can move within a coil extends over a suitable fraction of the cable to which batteries and / or capacitors are properly connected in parallel and, via a switch button, laser and / or LEDs so that such cable is agitated in its longitudinal direction. for times longer than 10 seconds it generates and stores the electrical power required to generate light by the LEDs and / or LEDs and sufficiently cause said heterogeneous photocatalysis during the time of brushing;

F - A toothbrush handle, body, or cable containing control buttons and wiring for proper electrical circuits to turn the power on or off. supply of electricity to generate illumination, properly insulated as appropriate;

G - A handle, body or toothbrush handle on which materials of manufacture are composed fluorescent substances and nanometric particles which, activated by lights of between 400 nm and 800 nm, from laser diodes, present in the appropriate place from the toothbrush handle, produce respectively microbicidal heterogeneous fluorescence and photo-catalysis;

H - Typical toothbrush bristles mounted on replaceable brackets, adaptable to toothbrush handles, with the innovation consisting of the addition to these bristles and their replaceable brackets of fluorescent substances and nanometric particles which produce when illuminated by luminous frequencies between 400 nm and 800 nm, respectively, fluorescence and heterogeneous photocatalysis;

I - A handle, body or toothbrush handle containing, in its front part, such that allow the fitting and detachment of the replaceable bristle holders simply by introducing one piece inside the other, by the congruence between these two pieces. .

The preferred use of about 0.5% by weight of iron doped Titanium Dioxide nanoparticles is that, if swallowed by users, they are harmless to the human body and, in the presence of gastric juice, become titanium tetrachloride - which has no photocatalytic activity - and those released to the sewage are transformed into sulfides and sulfites by combinations with such anions from the biodegradation of alkyl sulfates from detergents, soaps, shampoos and toothpastes, which do not harm the biota of the sewers.

The operation of the "Dental Excavation Kit, with photocatalytic resources, composed of brushing and dentistry" is as follows: -

1 - In the case of the use of toothpaste containing, at the same time, fluorescent substances and nanometric particles: - the light emitted by the laser diodes and / or leds contained in the cables of the toothbrushes. teeth, properly focused by lenses to be described in due time, focus on such particles while causing the nanometer particles to excite and the light to emit by the fluorescent substances within the sparkling mass of the toothpaste, and such substances generate light. at intermolecular distances between them and the surfaces of the teeth and gums, causing microbicidal heterogeneous photocatalysis exactly where it is needed.

The function of fluorescent substances in toothpastes, objects of this patent, is to overcome the opacity barrier formed by the thousands of gaseous bubbles that form the toothpaste foams, which prevent light from entering the foam surface, causing the heterogeneous photocatalysis is always performed inside the toothpaste film that will be covering teeth and gums;

2 - For the use of toothpastes containing only fluorescent substances: - light from laser-generating diodes and / or leds present on the toothbrush handles, properly focused by lenses, focuses on them causing fluorescent light emission. and excitation of the nanometric particles present in the material on which the toothbrush handles are constructed, in the replaceable bristle holders and in the bristles themselves, producing the microbicidal heterogeneous photocatalysis at the required location;

3 - In the case of toothpaste containing only photocalitic nanometer particles: - The light beams from the laser diodes contained in the toothbrush handles, duly focused by lenses, focus on nanometer particles present in the toothpaste, in the toothbrush handles, replaceable bristle holders and bristles themselves, producing heterogeneous microbicidal photocatalysis at exactly the required location;

4 - In any of the above situations, the presence of fluorescent and nanometric substances in the brush handles, replaceable bristle holders and bristles themselves act as generators of heterogeneous photocatalysis and assists in maintaining these parts of the "DENTAL BRUSH SET, PHOTOCATALYTIC RESOURCES, BRUSH AND DENTIFICATION" free from the growth of microorganism colonies.

5 - The frequencies emitted by the laser or LED emitting diodes present in the toothbrush handles are chosen so that they are compatible with the maximum yield of the ability to excite both the fluorescent substances and the heterogeneous photocatalysis generating nanoparticles present in the toothpaste. , on toothbrush handles, replaceable bristle holders and on the bristles themselves.

Before proceeding to the description and illustrations of the preferred form of construction of the object of this Patent, we present the following basic information on the scientific foundations of its operation, regarding nanoparticles and heterogeneous photocatalysis.

1 ^o - Nanoparticles, nanometric particles and nanostructured particles.

Initially, this Patent Report will establish the meanings of the terms and the explanation of the concepts that constitute the main advance in the State of the Art that it proposes.

Since Feynmam, at the 1959 annual meeting of the American Society of Physics at CALTECH, laid its foundations in his celebrated lecture "There's more space down there," Nanotechnology has become an extremely important branch of Solid Physics, opening up an unknown area. and whose findings immediately raised other questions: - the physics of nanometer-sized particles.

In 1972, Fujishima and Honda discovered the photocatalytic effects on UV-irradiated Titanium Dioxide electrodes and from this was born a new branch of physicochemical chemistry of enormous theoretical interest.

Nanotechnology research and theoretical elaborations mobilize thousands of researchers; since Fujishima and Honda, publications have been growing so much that in 2010 around 2,500 articles were published the vast majority being on Titanium Dioxide nanoparticles.

However, despite being an area of great interest among scientists, as can be seen from the volume of publications, nanotechnology remains inaccessible to lay people.

As the field of nanotechnology reveals more interesting surprises every day and the work on titanium dioxide particles is the most numerous - because they are very cheap, there are numerous commercial suppliers of them under conditions of strict reliability, there is an advanced state of the art. Technique about their manipulations in laboratories and being, above all, absolutely nontoxic to humans, - it is natural that they serve as parameters for researchers to advance from the research results of colleagues and that their practical applications, based on available studies, begin to be made.

At the same time, the branch of nanotechnology has been devoted to the creation and study of nanostructured particles such as open or closed nanotubules, lamellar and tubular structures, double or single walled, self-enclosed or spatial, closed and large surfaces, such as fullerenes and especially the fullerene C60, active microbicidal and antiviral.

However, the terms "nanoparticles", "nanostructured particles" or "nanometric particles" have been used interchangeably to designate structures with major dimensions between 10 and 100 nm encompassing an indescribable amount of chemical compositions and crystal structures, pure or doped with miscellaneous hetero atoms.

Thus, the meaning of the terms "nanometric particles", "nanoparticles" or "nanostructured particles", for all purposes of this Patent, unless otherwise indicated, always refers to any and all species of these particles, whether single or doped, occurring singularly. or of various natures and mixed in any proportions.

Likewise, we specify that the core concept of the object of this Patent is the heterogeneous photocatalysis production of nanoparticles by excitation thereof by electromagnetic radiation between wavelengths around 400 nm and near infrared, with wavelengths around 800nm, and the advance on the state of the art is the innovative application of the production of this electromagnetic spectrum generated by generating diodes laser and / or LEDs, whether or not combined with fluorescence light generation in the surrounding liquid environment of such nanometer particles, for the economical and practical achievement of heterogeneous photocatalysis, for microbicidal, effective effects against viruses, fungi, bacteria and protozoa such as non-picker microbicidal feature.

Unlike antibiotics, whose action is biochemical, enzymatic, the lethal effect of heterogeneous photocatalysis is photochemical and its mechanism of action is the destruction of cell membranes, cell walls and viral capsules by the action of the oxhydryl ion (OH ^" ), which is generated. when nanometric particles, when excited by near infrared, visible, white or any color, or near ultraviolet light, manifest high electrical potentials that cause hydrolysis and therefore do not select resistant strains, which is the most harmful of all. side effects of antibiotics.

In the case of C60 fullerene and other nanostructured particles the lethal mechanism is the fixation of such particles on the surfaces or inside pores of the viral membranes or capsules, so that metabolism of these microorganisms is impossible.

2 ° - Heterogeneous photocatalysis.

When, in 1972, Honda and Fujishima discovered division photo-electrochemical water molecule (H ₂ 0) in the electrode Ti0 ₂ under UV irradiation, there was the beginning of the era of heterogeneous photocatalysis using the Ti0 _2. Due to its high oxidizing and reducing power (E ° = 2.8 V; Egap = 3.2 eV) nanometric T1O2 is one of the most efficient photocatalysts used in environmental cleaning processes (for the degradation of organic pollutants and compounds. aromatics), the conversion and storage of solar energy and also in the medical field, for inactivation of bacteria, fungi, viruses and protozoa.

Nanoparticulate ΤΊ0 ₂ - dimensions between 10nm and 100 nm - is the subject of numerous works by researchers in the fields of nanoscience and nanotechnology.

When the particle is divided into smaller pieces the area / volume ratio and the actual surface area increase; In nanoparticle manufacturing practice, the nanoparticle surfaces are extremely irregular and the surface area increase is even greater and, as photochemical reactions occur on the surface of the ΤΊΟ2 crystal structure, derisory amounts, such as a few micrograms of the product, lead to great results. The nanoparticle conformation elevates the Ti0 ₂ gap energy (Egap), making it more photo active and more efficient as this is a surface function.

Ti0 ₂ nanoparticles are currently readily available on the market at low prices - $ 85.00 per 100 grams - and are employed, for the purposes of this Patent, at even lower concentrations than "1 mcg / g", that is to say. derisory costs.

Degussa Corporation's P-25 nanoparticle with an average size of 50 nm is one of the most widely used and has a large number of experiments described in the literature.

0 ΤΊΟ2 exists in nature in three crystalline forms: anatase, rutile and brookite, rutile being the most abundant form, although anatase is the form with the highest photoactive potential of all Ti0 ₂ crystalline phases.

However, its technological application is hampered due to the high energy of the gap (Egap 3.2 eV), which makes Ti0 ₂ photoreactivity only possible with electromagnetic irradiations in the UV light spectrum range up to the wavelength of 390 nm.

Ultraviolet radiation is classified into three categories as a function of wavelength:

1 - UV-A, between 320 nm and 400 nm, 2 - UV-B, between 280 nm and 320 nm,

3 - UV-C, between 200 and 280 nm.

UV-B and UV-C, due to the high energy content of their radiation, have carcinogenic effects and cannot be fixed.

For this reason, exposure of the skin to ultraviolet light should be avoided and prevented from reaching the mucous membranes and retina, even at minimal doses.

Extending the photocatalytic activity of Ti0 _2> as well as the other nanometric particles cited herein to a spectral range of wavelengths longer than UV has been resolved through various "doping" methods that modify the crystal structure of such particles, among others. which we will cite only:

1 - doping of Ti0 ₂ with transition metals;

2 - reaction of Ti0 ₂ with non-metallic elements (eg N), resulting in TiN;

3 - coupling of two semiconductors (for example: CdS and Ti0 ₂ );

Among these methods, the doping of Ti0 ₂ particles with metallic cations (Ti0 ₂ ^" M ⁺ ) has been the most described, easiest to achieve and lowest priced method.

The addition of transition metals to the Ti0 ₂ crystal structure allows the electromagnetic absorption to be extended to the visible light region and near infrared (with wavelengths close to 800 nm), thus maintaining its photocatalytic efficacy at the same time. avoid the risks of ultraviolet light.

The photocatalytic reactivity of (20 ₂ ^' M ⁺ ) depends on several factors, including the doping method, the doping ion concentration, the heat treatment (sample calcination) and the electronic configuration of the doping agent in the anatase crystal structure.

According to Xiabo Chen (2005), the increased photocatalytic activity of nanoparticles through transition metal doping methods has already been proven for numerous particles, of which we will mention only those made with the following metallic elements: Fe (III) Mo (V), Ru (III), Re (V), V (IV) and Rh (III) 0.5% by weight. In the years following the publication of Xiabo Chen's pioneering work in 2005, the fundamental principles of the crystalline changes in titanium dioxide nanoparticles and their consequences on the generation of heterogeneous photocatalysis were much better known and the list of doping ions and other nanometric particles. doped has grown enormously.

In particular, doping Ti0 ₂ with 0.5 wt.% Fe (III) has been the main process of effectively achieving heterogeneous photo-catalysis without the use of ultraviolet light, i.e. within the spectrum. visible and infrared near light radiation.

The Graph in Figure 3 shows the "Electromagnetic energy - at 10 ^{~ 3} W / m ² - of sunlight as a function of wavelength in nm"; this graph allows the comparison of the features of the photocatalytic performance of Ti0 pure ₂ and Ti0 ₂ doped when both are exposed to sunlight, and such yield applies also to any other nanometric particles, doped by any form, become photocatalytic when illuminated by the visible spectrum.

The region of the Chart marked by segment A-B indicates the region of ultraviolet light between 200 and 400 nm and the region indicated by segment C-D, the region of visible light.

In it we see that only about 5% of the total energy potential of the electromagnetic spectrum of sunlight is used for pure Ti0 ₂ photocatalysis while over 45% is used when doped Ti0 ₂ is employed.

This allows heterogeneous photo-catalysis, to be obtained by electromagnetic irradiation in the visible and near infrared light range, on doped Ti0 ₂ nanoparticles, or others, to be made by the light emission between violet and infrared, by all the components of this spectral range, mixed in various proportions, or by the irradiation of white light.

The aforementioned photocatalytic effects can also be obtained by hundreds of other heterogeneous photo catalysis generating substances such as as Zr0 _2, Sn0 _2, doped or not, and / or any other that activated by light violet, blue, white or other colors, alone or combined with each other in any proportions, producing photo-catalysis heterogeneous.

Matsunaga et al (1985) demonstrated that surfaces containing titanium dioxide, irradiated by ultraviolet light, kill bacteria such as Lactobacillus acidophilus, Escherichia coli and yeast such as Saccharomyces cerevisiae. These researchers also demonstrated that such photo-destructive action is associated with the reduction of coenzyme-A intracellular levels, by photo-oxidation and by progressive increase of the cell membrane permeability, destroying its "barrier" effect, which implies the free flow of intracellular content and death of the microorganism.

Research conducted by the Campina Grande / Paraíba University on water treatment for human consumption has shown that heterogeneous photocatalysis by irradiated sunlight or ultraviolet light on compounds containing titanium dioxide nanoparticles leads to the death of 100% of microorganisms such as Staphilococcus. aureus, Escherichia coli, Salmonella sp. The effects of the above research conducted with sunlight or ultraviolet can also be achieved by irradiation with lights in the visible range of the light spectrum when doped nanometric particles are used.

Description and Illustrations of the devices that make up the "DENTAL BRUSH SET, PHOTOCATALYTIC RESOURCES, BRUSH AND DENTIFICITY".

Figure 1 is a schematic view, in horizontal section, without obeying the actual proportions of the component parts, of the preferred embodiment of the toothbrush handle (1) which comprises the "PHOTOCATALYSTAL DENTAL BRUSH SET" BRUSH AND DENTIFICATION ", object of this Patent; In it we see the watertight cable (2), the inside of which is hermetically sealed to prevent water contact with the electro-electronic devices inside, where they are properly placed, this space being limited by the insulator (3); In this Figure 1 we also see the bar (8), made of material non-magnetic, with the springs (6) at both ends, the high magnetic power cylindrical magnet (7), which can move freely through the bar (8) in both directions, and upon reaching the springs (6) reverses its movement, both of which are placed inside the induction coil (6A), becoming a Lenz and Faraday generator that generates alternating electrical energy when the watertight cable (2) is moved in the direction of "go and go". come "horizontal; The generated electrical energy is collected at both ends of the induction coil (6A) by the cables (10), is rectified in full wave and stored in capacitors and batteries that make up the rectifier and storage system (9) and, when pressed. the button switch (11), of the normally open type, isolated and protected by the flexible film (12) this energy is provided by the cable (13) and will drive the laser and or LEDs (14), placed inside the end (5) of the toothbrush (1), which is the part of the toothbrush that enters the user's mouth during tooth brushing, the shape of which allows it to fit into the nanoparticle bristle holders to be shown in Figure 2. Also in this Figure 1 we see the hole (16), through which the light radiations, generated by the laser emitting diodes and or LEDs (14), reach the inside of the user's mouth for the generation of heterogeneous photocatalysis. hole (1 6) is fully occupied by the semi-cylindrical lens (15), made of clear plastic, which hermetically seals the hole (16), preventing the laser and / or LEDs (14) from being hit by water and also causes that the thin laser beams emitted by the laser diodes and or LEDs (14) become a horizontal beam of light orthogonal to the length of the sealed cable (2) of the toothbrush (1) or that is, in the same direction as the mouth opening, to reach all the teeth.

Figure 1 also shows the couplings of the end (5) of the toothbrush (1) with its tightened cable (2) which is made by pressure, by forcibly engaging the groove (4A) with the sealing ring (4) .

Figure 2 is a schematic front view of the replaceable supports (17) of the nanoparticle bristles (18) in which the bristles are viewed with nanoparticles (18), the light-through window (19) generated by the laser and / or LED generating diodes (14), focused by the semi-cylindrical lens (15), which seals the orifice (16) and the locking tabs (20) ) which, in any case, usually by congruence, juxtaposition and light pressure, fit into the end (5) of the toothbrush (1); Such feature allows the object of this patent to use replaceable holders (17) of disposable nanoparticle bristles (18) and replaceable with new sets, saving for users.

All materials, usually polymers, with which toothbrush parts (1) come into contact with users' hands or mouths, such as watertight handle (2) and replaceable holders (17) for nanoparticle bristles (18) contain nanometric particles, heterogeneous photocatalysis generators and fluorescent substances.

Operation of the "Dental Brushing Set, with Photopathic Resources, composed of Brushing and Density", object of this Patent.

As described above, the operation of the subject matter of this patent advances the state of the art of oral hygiene products - especially dental surfaces, their interdental interstices, and their alveolar regions - by the generation of heterogeneous photocatalysis microbiologically excited by nanometer particles. The presence of light beams at exactly these locations, and the effect of illumination on such particles can be brought to their surface by the aid of simultaneous fluorescence light generation from fluorescent substances added to toothpastes.

Thus, the laser and / or LED generating diodes (14), placed at the end (5) of the toothbrush handle (1), emit lights when the watertight handle (2) of the toothbrush (1) has been previously shaken by about 10 seconds to charge the capacitors and batteries that make up the rectifier and storage system (9), charging energy that continues during the typical brushing movement; the lights generated by the laser and or LEDs (14) pass through the hole (16), and They are transformed into a horizontal beam by the semi-cylindrical lens (15), which crosses the laser passage window (19) and reaches the inside of the mouth, where the toothpaste foams are present, where they produce the microbicidal effects of excitation. of nanometric particles in the following decreasing order of efficiency:

1 - maximum efficiency: - when toothpastes contain both fluorescent substances and nanometric particles;

2 - average efficiency: - when toothpastes contain only fluorescent substances or nanometric particles and not both together;

3 - lower efficiency: - when toothpastes contain neither nanometer particles nor fluorescent substances, heterogeneous photocatalysis is generated only by nanometer particles contained in the replaceable holders (17) of the nanoparticle bristles (18) and the watertight handle (2), by the light beams that hit them.

Claims

1. "DENTAL BRUSHING ASSEMBLY, WITH PHOTOCATALYTIC RESOURCES, COMPOSED BY BRUSH AND DENTIFICATION", intended for oral hygiene, especially of dental surfaces, their interdental interstices, and their alveolar regions - by generating heterogeneous photocatalysis microbicidal with nanometer particles light beams, characterized in that it is composed of a gel, foam, spray, or any other form of toothpaste containing nanometric and / or nanostructured particles such as open or closed nanotubules, lamellar or tubular crystalline structures double-walled, single-walled, self-enclosed or spatial, closed and large-surface particles, whether or not these particles may be doped and occur in a pure form or as a mixture of doped and non-doped particles, preferably doped Titanium Dioxide nanoparticles. about 0.5% by weight d and Iron, or mixed in any suitable proportions of several of them.

2. BRUSHING AND PHOTOCATALYTIC RESOURCING COMPOUND BRUSH AND DENTIFICATION "according to claim 1, characterized in that the electromagnetic radiation emitted by the laser-shaped lights emitted by the diode or laser diodes and / or leds present in the toothbrush handles are within the range of 400 nm to 800 nm wavelength, and the weight of the nanometer particles added varies according to the nature and efficiency of the particles, ranging from 1 to 100 micrograms per gram of toothpaste .

3. "PHOTOCATALYTIC DENTAL BRUSHING ASSEMBLY, COMPOSED BY BRUSH AND DENTIFICATION", characterized in that it consists of a toothpaste in the form of gel, foam, spray, or any other presentation, characterized in that it contains fluorescent substances of any colors, isolated or in mixtures, in any proportion, of any of these, capable of generating fluorescence when excited by frequencies within the range of 400 nm to 800 nm wavelength, the weight of such substances varying by weight molecular weight and the efficiency of generating fluorescence.

4. "BRUSHING, PHOTOCATALYSTAL DENTAL BRUSHING ASSEMBLY" according to claims 1 and 3, characterized in that the cable contains at its end the replaceable bristle holders and laser-emitting diodes are fitted. and or single or multiple LEDs, in any number, and can operate in isolation or in combination, capable of generating lights of any color within the light spectrum of 400 nm to 800 nm.

5. "BRUSHING AND DENTIFICIAL DENTAL BRUSHING DENTAL BRUSHING ASSEMBLY" according to Claim 4, characterized in that the cable comprises fluorescent substances and nanometric particles which, activated by lights of frequencies between 400 nm and 800 nm from the laser diodes, present at the proper location of the toothbrush handle, produce respectively microbicidal heterogeneous fluorescence and photocatalysis.

6. "DENTAL BRUSHING ASSEMBLY WITH PHOTOCATALYTIC RESOURCES COMPOSED BY BRUSH AND DENTIFICITY" according to claim 4, characterized in that the cable also contains, inside, a Lenz and Faraday generator set consisting of a magnet which can be move within a coil extending over a suitable fraction of the cable to which batteries and / or capacitors are properly connected in parallel and, via a switch button, laser and / or LEDs so that , being such cable agitated in its longitudinal direction for times above 10 seconds generates and stores the electrical power necessary to generate light by the laser and / or LEDs.

Dental brushing and brushing and drawing compound according to claims 1 and 3, characterized in that the bristles and their supports are added with fluorescent substances and nanometer particles which, when illuminated by light frequencies, between 400 nm and 800 nm, respectively, fluorescence and heterogeneous photocatalysis.

8. BRUSHING AND DENTIFICIAL DENTAL BRUSHING DENTAL ASSEMBLY "according to claims 1 and 3, characterized in that the preferred embodiment is basically comprised of a watertight cable (2), the interior of which is hermetically sealed containing inner electro-electronic devices, limited by the isolator (3), a Lenz and Faraday generator consisting of a bar (8) made of non-magnetic material, with the springs (6) at both ends, cylindrical magnet (7) , of high magnetic power, which can freely travel the bar (8) in both directions, and when reaching the springs (6) reverses its movement, both of which are placed inside the induction coil (6A) , being the generated electric energy collected at both ends of the induction coil (6A) by the cables (10), where it is rectified, full-wave rectified and stored in capacitors and batteries that make up the rectifier system and stored. r (9) and, when the normally open, isolated and protected by the flexible film (12) button switch (11) is pressed, this energy is provided by the cable (13) and will drive the laser diodes and or LEDs (14) placed inside the end (5) of the toothbrush (1); and orifice (16), through which the light radiations generated by the laser and / or LEDs (14) reach the inside of the user's mouth for the generation of heterogeneous photocatalysis, and the orifice (16) is totally occupied by the semi-cylindrical lens (15), made of clear plastic, which hermetically seals the hole (16), preventing the laser and / or LEDs (14) from being hit by water and It also causes the thin laser beams emitted by the laser and / or LEDs (14) to turn into a horizontal beam of light orthogonal to the length of the watertight cable (2) of the brush. teeth (1) and also replaceable holders (17) of the nanoparticle bristles (18) containing nanometric particles, heterogeneous photocatalysis generators and fluorescent substances.