US20100297576A1 - Powder for powder blasting, powder mixture and method of use for the treatment of tooth surfaces - Google Patents

Powder for powder blasting, powder mixture and method of use for the treatment of tooth surfaces Download PDF

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Publication number
US20100297576A1
US20100297576A1 US12/722,296 US72229610A US2010297576A1 US 20100297576 A1 US20100297576 A1 US 20100297576A1 US 72229610 A US72229610 A US 72229610A US 2010297576 A1 US2010297576 A1 US 2010297576A1
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Prior art keywords
powder
mixture
less
powders
air
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Marcel Donnet
Jörg Wittmann
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Ferton Holding SA
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Ferton Holding SA
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Assigned to FERTON HOLDING S.A. reassignment FERTON HOLDING S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DONNET, MARCEL, WITTMANN, JOERG
Publication of US20100297576A1 publication Critical patent/US20100297576A1/en
Priority to US13/927,257 priority Critical patent/US9888979B2/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
    • A61C3/025—Instruments acting like a sandblast machine, e.g. for cleaning, polishing or cutting teeth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0216—Solid or semisolid forms
    • A61K8/022—Powders; Compacted Powders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
    • B24C11/005—Selection of abrasive materials or additives for abrasive blasts of additives, e.g. anti-corrosive or disinfecting agents in solid, liquid or gaseous form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier

Definitions

  • the disclosure relates to a powder for powder blasting with a powder-jet device or a powder mixture for powder blasting with a powder-jet device as described, for example, in EP 1 159 929. Furthermore, the disclosure relates to the use of such a powder and powder mixture, respectively, for the preparation of an agent or material for the powder-jet treatment, especially the powder-jet cleaning of tooth surfaces, preferably tooth root surfaces and dentine.
  • FIG. 1 shows a dental abrasive spraying device disclosed in EP 1 159 929, incorporated by reference. It can be used not only with conventional tap water from a water supply ( 12 ), but also with other fluids.
  • a dental abrasive spraying device has a hand-piece ( 4 ) nozzle for spraying a dental powder contained in a reservoir ( 1 ), together with a carrier gas and a fluid aiding mixing of the powder with the carrier.
  • a feed ( 2 ) supplies pressurized air to swirl the powder in reservoir ( 1 ).
  • the swirled powder is led through line ( 3 ) to the nozzle ( 4 ), where additional air arrives through line ( 6 ′) and liquid through line ( 7 ).
  • a branch-line ( 7 ) is connectable via a valve ( 8 ) to container ( 10 ) to allow the liquid to be fed to the nozzle; and (c) there is a suction pump ( 9 ) upstream of the valve ( 8 ).
  • This device can supply either liquid from line ( 7 ), or air from line ( 6 ′), to be mixed with the air/powder mixture from line ( 3 ).
  • Powders of background interest are already known from U.S. Pat. No. 3,882,638 or U.S. Pat. No. 4,174,571, whereas the further development of the second mentioned document aims at the provision of particularly gentle powders like glutamate or sodium gluconate being less abrasive in comparison to the hitherto known powders of sodium bicarbonate or Iceland spar, and hence will, to a lesser extent, adversely affect sensitive surfaces, like e.g. tooth root surfaces, but also dental enamel surfaces.
  • Preferred grain sizes range from 140 ⁇ m to 200 ⁇ m, in case of stronger abrasively affecting powders they also range from 20 ⁇ m to 70 ⁇ m.
  • crystalline cellulose with a mean grain size of 6, 15, 20, 50 or also 120 ⁇ m; and the cleaning efficiency is similarly good as the one obtained when using a powder consisting of sodium bicarbonate, whereas the abrasion of root dentine is considerably less.
  • U.S. Pat. No. 6,126,444 discloses water insoluble agents
  • WO 00/53154 discloses water soluble agents like amino acids, sugar or organic acids and the salts thereof, which have the advantage that the powder dissolves in water upon application to the tooth and particularly does not gather in the gingival pockets, where water insoluble agents cause an unpleasant feeling and might possibly even lead to an infection of the gingival pocket or the gingiva.
  • These powders however, have the disadvantage that, due to one or several grinding and sieving steps, the preparation or manufacturing thereof is expensive and laborious.
  • U.S. Pat. No. 5,810,587 discloses another composition for cleaning sensitive tooth surfaces by means of powder-jet devices, wherein, on the one hand, a good cleaning result for the removal of tooth deposit/dental plaque is to be obtained, and, at the same time, an abrasiveness as slight as possible is to be obtained when impinging upon sensitive tooth surfaces.
  • U.S. Pat. No. 5,810,587 recommends using very finely particled materials which are put together to larger “snowballs” and burst upon hitting the tooth surface. Particles ranging in size from 0.01 to 5 ⁇ m are formed to larger spheres having dimensions from 10 to 200 ⁇ m and breaking apart when they impinge upon the tooth surface. Gibbsite is recommended as raw material.
  • suitable jet means are mixing and flight characteristics of the used particles. Upon swirling in the powder chamber, care has to be taken that a constant loading of the outgoing airstream takes place, independent of the amount of powder filled into the powder chamber. This can only be ensured when the powder is uniformly stirred by the airstream and when the pourability, for example, is restricted by the formation of densified areas. Smaller particles tend more to form such densified area than larger particles which, due to their mostly larger mass, are often less suitable for being stirred by the airstream. In addition, the miscibility depends on the agent used. At the same time, it should be possible that the powder be processed by the used powder-jet devices, and the preparation or manufacturing of the powder should be as cost-efficient as possible.
  • a powder for powder blasting should have a corrosion tendency as low as possible and wear out the jet nozzle as little as possible. It should be possible to manufacture the powder, in the preferred size, preferably directly and without requiring further milling processes and the powder should be eudermic. The powder should be well tolerated by humans and, if possible, have an acceptable taste. In order to shorten or avoid costly and time-consuming applications procedures, the powder should preferably have few side effects and a good digestibility.
  • powders and powder mixtures disclosed and claimed herein are highly advantageous for these goals.
  • a powder blasting device containing these powders and powder mixtures, is disclosed and claimed.
  • Other embodiments are disclosed and claimed as well.
  • Altidols are acyclic polyols having the formula HOCH 2 [CH(OH)] n CH 2 OH, which structurally derive from carbohydrates. They are also called sugar alcohols.
  • Sugar alcohols which are especially preferred in the present application, are mannitol, erythritol, xylitol, sorbitol or threitol.
  • Alditols have a sweet taste, are not cariogenic and show a laxative effect only after the consumption of more than 20 to 30 g/day, that is to say, they can, just like that, be used for powder-jet cleaning of tooth surfaces. Since alditols are used as sugar substitutes in dietetic food, they do not increase the blood glucose level and require no insulin to be metabolized. Hence, they are also suitable for diabetics and can, just like that, be used for powder-jet application.
  • Mannitol is an alditol with four CH(OH) groups and is used as a sugar substitute (E 421 ), as well as a pharmaceutical drug in the production of tablets. It is uncoloured, a sweet tasting crystal and has a density of approx. 1.52 g/cm 3 . Due to its easy solubility in water, it is perfectly adapted for powder-jet cleaning, since, after impinging on the tooth surface, it can be dissolved and rinsed out. The molar mass of mannitol is 182.17 g/mol. The molecular formula is C 6 H 14 O 6 . Mannitol is available on the market as the trademarks Osmofundin®, Osmosteril® or also Bronchitol®.
  • mannitol has many advantages. In comparison to glycine, mannitol wears off the jet nozzle less; but shows, in comparison to glycine, a comparable abrasiveness in case of a similar particle size. Furthermore, mannitol cleans the tooth surface better than glycine, without adversely affecting the sensitive dentine. Simultaneously, it turned out that mannitol can be very well mixed with air in the powder receptacle, and that a uniform swirl takes place. Despite the small size of the particles, it raises less dust than, for example, glycine and thus can be better agitated and fed more uniformly to the nozzle of the powder-blasting device. This improves the evenness of the tooth treatment.
  • mannitol can be prepared as powder directly in the desired sizes and needs not, like, e.g., sodium hydrocarbonate or glycine, be grinded and sieved to the desired size.
  • the tolerance of mannitol is significantly better.
  • Glycine is cytotoxic and may, upon skin contact, cause irritations.
  • Mannitol is a sugar substitute and can be used as food. It is water-soluble, does not clot and has a sweet taste.
  • the preferred mean grain size of the powder should be no larger than 45 ⁇ m, preferably no larger than 35 ⁇ m, more preferred approximately between 10 ⁇ m and approx. 30 ⁇ m.
  • a suitable mean grain size of mannitol powder for cleaning sensitive tooth surfaces is about 20 ⁇ m to 30 ⁇ m.
  • the powder has a density of not more than 2.0 g/m 3 , preferably no more than 1.8 g/m 3 , and more preferred no more than 1.55 g/cm 3 . Much preferred densities range between 1.4 g/m 3 and 1.5 g/m 3 . Furthermore, a special embodiment of the powder has a Mohs hardness of no more than 5, preferably no more than 3.5, much preferred no more than 2.5. Furthermore, the powder has a molar mass of no less than 90 g/mol, preferably no less than 110 g/mol, much preferred no less than 120 g/mol. Long-chain hydrocarbons thereby form particles of a lower density, i.e. with a larger contact surface at equal mass, leading to improved swirl properties in the swirl chamber.
  • glycine with a particle size of less than 20 ⁇ m in the powder chamber of customary devices, can no longer be reliably swirled, and forms densified areas, even if materials for the increase of pourability, like pyrogenic silica, are added, and hence does not allow the airstream to be sufficiently enriched with the blasting material, this does not appear when using a powder made, for example, of erythritol.
  • Erythritol has two CH(OH) groups and is equally used a sugar substitute (E 968 ). It is solid at room temperature, has a density of 1.45 g/cm 3 and is water-soluble. Like mannitol, erythritol has the aforesaid positive properties and has, in comparison to other alditols like sorbitol, maltitol, lactite and isomalt, the advantage of a very high digestive tolerance. The abrasion measurements have surprisingly shown that, despite the somewhat lower density vis-à-vis mannitol, the abrasiveness of erythritol at equal size of the particles has slightly increased.
  • Erythritol is very advantageous because, in the mixing chambers of conventional powder-jet devices, it can reliably be swirled to low particle sizes of app. 12 ⁇ m.
  • the effectiveness during the cleaning of tooth surfaces is similarly good as in larger mannitol or glycine powders, there is significantly less abrasiveness than with a powder containing glycine with a mean grain size of 20 ⁇ m, or mannitol with a mean grain size of 23 ⁇ m.
  • erythritol is especially gentle to dentine.
  • a powder containing xylitol is suitable; an uncoloured, sweet tasting crystal with a molar mass of 152.15 g/mol and a low density of 0.77 g/cm 3 . It can easily be dissolved in water and has the advantage of developing an anti-cariogenic effect. It is a natural sugar alcohol present in many sorts of vegetables and fruits (among others in plums, strawberries or raspberries). While metabolizing carbohydrates, xylitol is produced every day in the human body in the liver and has, because of its sweetish property, only positive characteristics of a dietary supplement. Xylitol is also suitable for diabetics.
  • alditol is sorbitol with a density of 1.49 g/cm 3 and a molar mass of approximately 182.2 g/mol.
  • Sorbitol forms uncoloured, odourless and hygroscopic needles having a sweet taste, and can be made from corn or wheat starch. It can easily be dissolved in water and therefore, because of its aforesaid properties, is especially suitable for the powder.
  • the disclosure also relates to a powder mixture for powder blasting with a powder-jet device, wherein the powder mixture contains at least two of the aforementioned powders, wherein each of the powders is present in a mass fraction (percentage) of no less than 2%, preferably no less than 10%, much preferred no less than 20%, based on the overall mass (total volume) of the aforesaid powders.
  • the quantities only relate to the abrasively acting powders, wherein further components can, of course, be added to the powder mixture.
  • a suitable agent for powder-jet cleaning of tooth surfaces therefore consists of the powder or the powder mixture described and taught herein, plus further components as necessary, like, e.g., finely particled silica gel, bleaching agents, analgetics, bacteriocides or flavour additives, which are added to the agent. Furthermore, air and water can be added to the agent, in order to be able to apply it, by means of the powder-jet device, onto the tooth surfaces to be treated.
  • the disclosure also relates to a respective use of the powder or powder mixture for the preparation of an agent for powder-jet treatment, preferably cleaning, of tooth surfaces, preferably dentine.
  • the powder mixture additionally contains at least two of the aforesaid abrasive powders with a particle fraction (i.e. amount of substance) of no less than 5%, preferably no less than 10%, much preferred no less than 20%, based on the total number of particles (i.e. overall amount of substance) of the powders according to the aforesaid preferred embodiments.
  • a much preferred powder mixture contains mannitol with a mass fraction (percentage) of about 30% and erythritol with a mass fraction (percentage) of about 70%. This corresponds to an amount-of-substance ratio (i.e. particle ratio) of about 1:6.
  • the swirling of the used powder mixture is still good, whereas, at the same time, a particularly finely particled powder impinges on the tooth surface, wherein the sensitive tooth root surfaces, in particular, are treated with care.
  • the abrasiveness of the powder mixtures increases only insignificantly, because the fraction of the added larger particles is not that high, and the powder with the larger particles, due to the morphology of the particle surface, has a less abrasive effect.
  • the disclosure also relates to a powder-jet device with a swirl chamber in which is present the powder or a powder mixture described and taught herein, and which is acted upon by an airstream such that the powder or powder mixture is swirled and, together with the airstream, can be fed to a nozzle.
  • FIG. 1 shows a prior art dental abrasive spraying device suitable for use with the powders and powder mixtures and methods described herein.
  • the powder or the powder mixture prepared as described herein was compared to a conventional powder from very fine sodium bicarbonate.
  • sodium bicarbonate with a mean grain size of about 65 ⁇ m is the most widespread powder for cleaning tooth surfaces, particularly dentine. Due to its considerably higher abrasiveness with regard to sensitive tooth surfaces, like, for example, at the neck of tooth, this powder is generally not used there.
  • such a sodium bicarbonate powder up to a powder size with a mean grain size of 10 ⁇ m, can still be processed in a commercially available powder-jet device.
  • the abrasiveness with such smaller particles is still identifiably higher than with the erythritol powder according to the invention, which has a mean grain size of about 12 ⁇ m.
  • the tests were therefore carried out with a commercially available powder-jet device (AirFlow S1TM, EMS Electro Medical Systems SA, Switzerland).
  • the plastic material PEEK G 30 was taken as a substitute for the sensitive part of a tooth surface, i.e. a polyetheretherketone with a glass fibre fraction of 30%.
  • the nozzle of the powder-jet device was arranged at a distance of about 2 mm above the plastic material surface, and the powder stream (jet) was activated for about 10 seconds, respectively.
  • the depth of the area which was treated with the respective powder was measured and evaluated as indicator for the abrasion behaviour or the abrasiveness.
  • a glycine-based powder of different mean grain sizes was also used.
  • the enclosed tables 1 and 2 show the abrasiveness and miscibility of the tested powders vis-à-vis conventional powders of sodium bicarbonate and glycine, respectively, with a mean grain size of about 65 ⁇ m.
  • the value 10 corresponds to the respective properties of sodium bicarbonate. From table 1, it can be taken that the abrasiveness of powder consisting of mannitol with a mean grain size of 23 ⁇ m is lower than the abrasiveness of sodium bicarbonate, although the miscibility according to table 2 does not worsen.
  • Still smaller particle sizes of, for example, 12 ⁇ m can be processed in the use of erythritol in customary powder jet devices, wherein this results in a lower abrasiveness and the miscibility being better than that of conventional sodium bicarbonate.
  • the powder mixture is not too toxic and may not—as glycine—cause skin irritation upon contact.
  • the mixture can be manufactured directly and need not—as glycine—be ground and sieved, resulting in a considerable reduction of manufacturing costs.
  • the powder mixture is not cariogenic and can be used with diabetics.
  • the powder described herein because its cleaning efficiency is considerably better than with conventional powders, i.e. the abrasion of dental plaque takes place faster, presumably because of the crystal morphology of erythritol.
  • the cleaning efficiency of sodium bicarbonate powder with a particle diameter of 65 ⁇ m has, as in the other tests before, been allocated the value 10 for better comparability.
  • the determined times for the other powders have been standardized with this value, and the reciprocal values have been inserted into table 3. Hence, a high point value stands for a good cleaning efficiency.
  • the cleaning efficiency of the tested powders is, for almost all sorts of powder, in comparison to the standard powder (sodium bicarbonate with mean grain sizes of about 65 ⁇ m), surprisingly either better or at least similar. Only mannitol with a grain size of 20 ⁇ m drops off somewhat. The tested glycine powders, too, do not reach the performance of the standard powder. The powders containing erythritol, however, show an excellent cleaning efficiency which was always beyond the one of the standard powder. The cleaning efficiency of the mixture of mannitol and erythritol was also equivalent to the one of the standard powder.
  • the sorts of powder erythritol 12 ⁇ m and the mixture consisting of erythritol and mannitol are superior over the known powders for sensitive dental surfaces. If an abrasion value of 3 is set as upper limit for sensitive dental surfaces, the afore-mentioned powders meet this value or are even fall below this value. At the same time, they show a better cleaning result than known powders made of glycine.

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US12/722,296 2009-03-12 2010-03-11 Powder for powder blasting, powder mixture and method of use for the treatment of tooth surfaces Abandoned US20100297576A1 (en)

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US13/927,257 US9888979B2 (en) 2009-03-12 2013-06-26 Method of powder blasting for cleaning of tooth surfaces

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EP09155004.6 2009-03-12
EP09155004.6A EP2228175B1 (de) 2009-03-12 2009-03-12 Verwendung eines Pulvers oder Pulvergemisches zur Herstellung eines Mittels zur Pulverstrahlreinigung von Zahnoberflächen

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US13/927,257 Active 2030-08-26 US9888979B2 (en) 2009-03-12 2013-06-26 Method of powder blasting for cleaning of tooth surfaces

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EP (1) EP2228175B1 (ja)
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DK (1) DK2228175T3 (ja)
ES (1) ES2425373T3 (ja)

Cited By (10)

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EP2572699A1 (en) 2011-09-23 2013-03-27 Louis Tsu SA Powder for use in a method for tooth treatment
WO2013041711A2 (en) 2011-09-23 2013-03-28 Louis Tsu Sa Powder for dental powder blasting
US9358185B2 (en) 2012-06-18 2016-06-07 3M Innovative Properties Company Powder composition for air polishing the surface of hard dental tissue
US9662180B2 (en) 2012-12-17 2017-05-30 3M Innovative Properties Company Device for dispensing a dental material with locking mechanism
CN107427439A (zh) * 2015-02-03 2017-12-01 福尔顿控股公司 用于清洁牙齿的粉末和方法
US9888980B2 (en) 2012-12-17 2018-02-13 3M Innovative Properties Company Nozzle head, hand piece and powder jet device for applying a dental material
US9974629B2 (en) 2012-12-17 2018-05-22 3M Innovative Properties Company Powder jet device for dispensing dental material
EP3041454B1 (de) 2013-09-06 2019-10-02 Ferton Holding S.A. Pulvergemisch, verwendung des pulvergemischs und pulverstrahlgerät
CN110475535A (zh) * 2017-04-03 2019-11-19 福尔顿控股公司 清洁体内部位和/或植入物的粉末、制造这种粉末的方法和合适的用途
CN114521141A (zh) * 2019-09-24 2022-05-20 福尔顿控股公司 粉末和用于通过使用这样的粉末清洁牙齿的方法

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DE102014115412A1 (de) * 2014-10-22 2016-05-12 orochemie GmbH + Co. KG Pulver für die dentale Pulverstrahlreinigung
USD825741S1 (en) 2016-12-15 2018-08-14 Water Pik, Inc. Oral irrigator handle
JP2020505431A (ja) 2017-02-02 2020-02-20 ウォーター ピック インコーポレイテッド 歯牙清掃用研磨剤を含む錠剤
AU2018236429B2 (en) 2017-03-16 2023-02-02 Water Pik, Inc. Oral irrigator handle for use with oral agent
EP3466403A1 (de) 2017-10-04 2019-04-10 Prisman GmbH Verwendung eines monosaccharids zur sub- und/oder supragingivalen zahnreinigung
USD868243S1 (en) 2018-03-16 2019-11-26 Water Pik, Inc. Oral irrigator tip
RU2705380C1 (ru) * 2018-11-21 2019-11-07 федеральное государственное бюджетное образовательное учреждение высшего образования "Башкирский государственный медицинский университет" Министерства здравоохранения Российской Федерации Способ профилактики периимплантатного мукозита при дентальной имплантации у пациентов с сопутствующим пародонтитом
EP3824873A1 (en) 2019-11-25 2021-05-26 Ferton Holding S.A. Use of rhamnose and arabinose for dental powder jet cleaning
US20230149284A1 (en) 2020-02-17 2023-05-18 Ferton Holding S.A. Cyclodextrins as dental cleaning powders
US20230301878A1 (en) 2020-08-11 2023-09-28 Ferton Holding S.A. Coated powder for powder jet cleaning of teeth
WO2022124029A1 (ja) * 2020-12-11 2022-06-16 株式会社松風 歯面又は歯肉溝・歯周ポケット内に噴射するための噴射用粉末混合物

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JP2010215621A (ja) 2010-09-30
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US20130337413A1 (en) 2013-12-19
ES2425373T3 (es) 2013-10-15

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