EP2086449A1 - Drill for dental use and with modulated inertia - Google Patents

Drill for dental use and with modulated inertia

Info

Publication number
EP2086449A1
EP2086449A1 EP07848372A EP07848372A EP2086449A1 EP 2086449 A1 EP2086449 A1 EP 2086449A1 EP 07848372 A EP07848372 A EP 07848372A EP 07848372 A EP07848372 A EP 07848372A EP 2086449 A1 EP2086449 A1 EP 2086449A1
Authority
EP
European Patent Office
Prior art keywords
drill
inertia
cutter
modulated
dental use
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.)
Withdrawn
Application number
EP07848372A
Other languages
German (de)
French (fr)
Inventor
Bernard Lambertin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Micro Mega International Manufactures SA
Original Assignee
Micro Mega International Manufactures SA
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 Micro Mega International Manufactures SA filed Critical Micro Mega International Manufactures SA
Publication of EP2086449A1 publication Critical patent/EP2086449A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the present invention relates to the field of strawberries, in particular for dental use.
  • Strawberries used particularly in dentistry have shapes and dimensions very variable, in addition they are used at different speeds.
  • turbine handpieces generally called turbines
  • flywheel or modifications of the shapes of the paddle wheels which allow among other things to obtain a greater power so a movement less likely to micro variations.
  • An object of the present invention is to design a moderated inertia mill so that the inertia of the rotating assembly is adapted to both the milling cutter and the type of work for which it is intended.
  • Another object of the invention is to design a cutter, the insertion of which is facilitated and secure and avoids the gliding of the gloved fingers of the practitioner on the proximal portion of the handle of the cutter.
  • a dental drill of the type comprising an active part, a tail with a proximal portion and a distal portion, characterized in that the proximal portion comprises a variable flywheel.
  • FIG. 1 schematic view of a conventional dental drill.
  • Figure 2 schematic view of a dental bur according to the invention.
  • - Figure 3 dental drill according to the invention engaged in a counter-angle head or turbine.
  • the dental burs are generally composed of an active part (a) and a handle or tail that can be divided into two parts, on the one hand the proximal part (b) which is intended to remain outside the head of the turbine handpiece or contra-angle, and a distal portion (c) which is intended to enter a handpiece, turbine or contra-angle.
  • the said part (c) is generally defined according to the ISO standards in force depending on whether it is strawberry for use on contra angle low or high speed.
  • FIG. 2 represents a cutter according to the invention which comprises an active part (1), a distal part (3) for insertion into a handpiece, and a proximal part (2) comprising a variable flywheel ( 4) to adjust a steering wheel according to the dimensions of the active part (1) and / or the work to be done.
  • a cutter according to the invention which comprises an active part (1), a distal part (3) for insertion into a handpiece, and a proximal part (2) comprising a variable flywheel ( 4) to adjust a steering wheel according to the dimensions of the active part (1) and / or the work to be done.
  • variable flywheel (4) has a smaller diameter (5) located on the side of the active part (1) and a larger diameter (6) on the side of the distal part (3). of the tail.
  • the larger diameter base (6) is located at, or very close to, said distal portion (3) so as to serve as a visual cue to the practitioner, which ensures that the cutter is engaged correctly and good depth in the clamping system of the handpiece.
  • the envelope (7) of the flywheel is a conical surface of revolution whose function is to smooth the rotational movement by opposing the jolts suffered by the cutter during the dental work.
  • the envelope (7) could also be constituted by discontinuous circular bearings of different successive diameters (case not shown).
  • a flywheel of about 3 mm and 0.25 g of mass gives satisfactory results.
  • the presence of the flywheel allows, by centrifugal effect, to push the watering liquid and any physiological liquids outwards, thus avoiding their penetration into the head of the turbine, handpiece or contra-angle. This effect is accentuated if, judiciously, it gives a shape such that the flywheel has a smaller diameter of the milling side than the handpiece side.
  • Another function of the steering wheel is to block the gloved fingers of the practitioner and prevent their sliding on the cutter (see Figure 3).
  • Another function also of the steering wheel is to constitute a structural support of the tail of the cutter by opposing the phenomenon of whip that can occur with strawberries used at high speed.
  • Another function also of the steering wheel is to constitute a protection of the handpiece against splashes of saliva and other liquids during work.
  • the steering wheel can also if it is colored, fulfill a function of visual identification of strawberries placed in a specific support generally used by dentists.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

The invention relates to a drill for dental use, of the type comprising an active part (1), a shank with a proximal part (2) and a distal part (3), characterized in that the proximal part comprises a variable- inertia flywheel (4).

Description

FRAISE A USAGE DENTAIRE ET A INERTIE MODULEE STRAINER FOR DENTAL USE AND MODERATE INERTIA
La présente invention se rapporte au domaine des fraises en particulier à usage dentaire.The present invention relates to the field of strawberries, in particular for dental use.
Elle trouve un intérêt particulier dans les applications dentaires telles que endotonlogie, implantologie...She finds a particular interest in dental applications such as endotonology, implantology ...
Les fraises utilisées particulièrement en art dentaire, présentent des formes et des dimensions très variables, en outre elles sont utilisées à des vitesses différentes.Strawberries used particularly in dentistry, have shapes and dimensions very variable, in addition they are used at different speeds.
Pour améliorer leur efficacité de travail on a cherché à limiter les à-coups dus en particulier à chaque dent lorsqu'elle entre en contact avec la matière à couper.To improve their working efficiency it has been sought to limit the jolts due in particular to each tooth when it comes into contact with the material to be cut.
Pour obtenir un lissage du mouvement de rotation on a introduit dans les pièces à mains à turbines (dites généralement turbine) une modification du rotor par exemple en y adjoignant un volant d'inertie, ou encore des modifications des formes des roues à aubes qui permettent entre autre d'obtenir une plus grande puissance donc un mouvement moins susceptible de micro variations.In order to obtain a smoothing of the rotational movement, a modification of the rotor has been introduced in turbine handpieces (generally called turbines), for example by adding a flywheel, or modifications of the shapes of the paddle wheels which allow among other things to obtain a greater power so a movement less likely to micro variations.
Ces solutions apportent sans aucun doute une amélioration, toutefois elles sont appliquées à la turbine et donc s'appliquent quelle que soit la fraise utilisée ou le travail qui est fait avec la dite fraise. De plus les fraises hautes vitesses sont aussi utilisées sur des contre-angles à transmission mécanique donnant une vitesse de rotation de la fraise voisine de celle des turbines en cours de travail, dans ce cas on dispose donc d'une puissance plus grande, puisque c'est celle du moteur qui est transmise. Mais actuellement il n'existe pas de moyen de lutter contre les effets des chocs d'usinage. Un but de la présente invention est de concevoir une fraise à inertie modulée de sorte que l'inertie de l'ensemble tournant soit adaptée tant à la fraise qu'au type de travail auquel elle est destinée.These solutions undoubtedly provide an improvement, however they are applied to the turbine and therefore apply regardless of the cutter used or the work that is done with the said cutter. In addition, the high-speed milling cutters are also used on mechanical transmission contra-angles giving a rotation speed of the milling cutter close to that of the turbines during work, in this case a greater power is therefore available, since is that of the engine that is transmitted. But currently there is no way to combat the effects of machining shocks. An object of the present invention is to design a moderated inertia mill so that the inertia of the rotating assembly is adapted to both the milling cutter and the type of work for which it is intended.
Un autre but de l'invention est de concevoir une fraise, dont l'insertion est facilitée et sécurisée et évite le glissement des doigts gantés du praticien sur la partie proximale du manche de la fraise.Another object of the invention is to design a cutter, the insertion of which is facilitated and secure and avoids the gliding of the gloved fingers of the practitioner on the proximal portion of the handle of the cutter.
Ces buts sont atteints par l'invention qui consiste en une fraise à usage dentaire, du type comportant une partie active, une queue avec une partie proximale et une partie distale, caractérisée en ce que la partie proximale comporte un volant d'inertie variable. L'invention sera mieux comprise à l'aide de la description ci-après, faite en référence aux figures annexée suivantes :These objects are achieved by the invention which consists of a dental drill, of the type comprising an active part, a tail with a proximal portion and a distal portion, characterized in that the proximal portion comprises a variable flywheel. The invention will be better understood with the aid of the description below, made with reference to the following appended figures:
- figure 1 : vue schématique d'une fraise dentaire classique. figure 2 : vue schématique d'une fraise dentaire suivant l'invention. - figure 3 : fraise dentaire selon l'invention engagée dans une tête de contre-angle ou de turbine.- Figure 1: schematic view of a conventional dental drill. Figure 2: schematic view of a dental bur according to the invention. - Figure 3: dental drill according to the invention engaged in a counter-angle head or turbine.
Les fraises dentaires, voir figure 1 , sont en général composées d'une partie active (a) et d'un manche ou d'une queue que l'on peut diviser en deux partie, d'une part la partie proximale (b) qui est destinée à rester à l'extérieur de la tête de la pièce à main turbine ou contre-angle, et une partie distale (c) qui est destinée à entrer dans une pièce à main, turbine ou contre-angle. La dite partie (c) est en général définie en fonction des normes ISO en vigueur selon qu'il s'agit de fraise pour usage sur contre-angle à basse ou à haute vitesse.The dental burs, see Figure 1, are generally composed of an active part (a) and a handle or tail that can be divided into two parts, on the one hand the proximal part (b) which is intended to remain outside the head of the turbine handpiece or contra-angle, and a distal portion (c) which is intended to enter a handpiece, turbine or contra-angle. The said part (c) is generally defined according to the ISO standards in force depending on whether it is strawberry for use on contra angle low or high speed.
La figure 2 représente une fraise selon l'invention qui comprend une partie active (1 ), une partie distale (3) pour l'insertion dans une pièce à main, et une partie proximale (2) comportant un volant d'inertie variable (4) permettant d'ajuster un volant en fonction des dimensions de la partie active (1 ) et/ou du travail à effectuer.FIG. 2 represents a cutter according to the invention which comprises an active part (1), a distal part (3) for insertion into a handpiece, and a proximal part (2) comprising a variable flywheel ( 4) to adjust a steering wheel according to the dimensions of the active part (1) and / or the work to be done.
De préférence comme sur les figures le volant d'inertie variable (4) présente un plus petit diamètre (5) situé du coté de la partie active (1 ) et un plus grand diamètre (6) du coté de la partie distale (3) de la queue.Preferably, as in the figures, the variable flywheel (4) has a smaller diameter (5) located on the side of the active part (1) and a larger diameter (6) on the side of the distal part (3). of the tail.
De préférence la base de plus grand diamètre (6) est située au niveau, ou très proche, de ladite partie distale (3) de façon à servir de repère visuel au praticien, qui s'assure ainsi que la fraise est engagée correctement et à bonne profondeur dans le système de serrage de la pièce à main.Preferably the larger diameter base (6) is located at, or very close to, said distal portion (3) so as to serve as a visual cue to the practitioner, which ensures that the cutter is engaged correctly and good depth in the clamping system of the handpiece.
De préférence l'enveloppe (7) du volant est une surface de révolution conique ayant pour fonction de lisser le mouvement de rotation en s'opposant aux à-coups subis par la fraise en cours du travail de dentisterie.Preferably the envelope (7) of the flywheel is a conical surface of revolution whose function is to smooth the rotational movement by opposing the jolts suffered by the cutter during the dental work.
L'enveloppe (7) pourrait également être constituée de paliers circulaires discontinus de diamètres différents successifs (cas non représenté).The envelope (7) could also be constituted by discontinuous circular bearings of different successive diameters (case not shown).
A titre d'exemple de réalisation, un volant d'inertie de 3 mm environ et de 0,25 g de masse donne des résultats satisfaisants.As an exemplary embodiment, a flywheel of about 3 mm and 0.25 g of mass gives satisfactory results.
Lorsque la fraise est utilisée avec un système d'arrosage par spray par exemple, la présence du volant d'inertie permet, par effet centrifuge, de repousser vers l'extérieur le liquide d'arrosage et les éventuels liquides physiologiques évitant ainsi leur pénétration dans la tête de la turbine, pièce à mains ou contre-angle. Cet effet est accentué si, de manière judicieuse, on donne une forme telle que le volant d'inertie présente un diamètre plus faible du coté fraise que du coté pièce à main.When the cutter is used with a spray irrigation system for example, the presence of the flywheel allows, by centrifugal effect, to push the watering liquid and any physiological liquids outwards, thus avoiding their penetration into the head of the turbine, handpiece or contra-angle. This effect is accentuated if, judiciously, it gives a shape such that the flywheel has a smaller diameter of the milling side than the handpiece side.
Une autre fonction du volant est de bloquer les doigts gantés du praticien et d'empêcher leur glissement sur la fraise (voir figure 3).Another function of the steering wheel is to block the gloved fingers of the practitioner and prevent their sliding on the cutter (see Figure 3).
Une autre fonction également du volant, est de constituer un support structurel de la queue de la fraise en s'opposant au phénomène de fouet pouvant se produire avec des fraises utilisées à haute vitesse.Another function also of the steering wheel, is to constitute a structural support of the tail of the cutter by opposing the phenomenon of whip that can occur with strawberries used at high speed.
Une autre fonction également du volant est de constituer une protection de la pièce à main envers les projections de salives et autre liquides en cours de travail.Another function also of the steering wheel is to constitute a protection of the handpiece against splashes of saliva and other liquids during work.
Le volant peut également s'il est coloré, remplir une fonction d'identification visuelle des fraises placées dans un support spécifique généralement utilisé par les dentistes. The steering wheel can also if it is colored, fulfill a function of visual identification of strawberries placed in a specific support generally used by dentists.

Claims

REVENDICATIONS
1. - Fraise à usage dentaire, du type comportant une partie active (1 ), une queue avec une partie proximale (2) et une partie distale (3), caractérisée en ce que la partie proximale comporte un volant d'inertie variable (4).1. - Dental milling cutter, of the type comprising an active part (1), a tail with a proximal part (2) and a distal part (3), characterized in that the proximal part comprises a variable flywheel ( 4).
2. - Fraise selon la revendication 1 , caractérisée en ce que le volant (4) présente un plus petit diamètre du côté de la partie active (1 ) et un plus grand diamètre du côté de la partie distale (3) de la queue.2. - mill according to claim 1, characterized in that the wheel (4) has a smaller diameter on the side of the active part (1) and a larger diameter on the side of the distal portion (3) of the tail.
3. - Fraise selon des revendications 1 à 2, caractérisée en ce que l'enveloppe (7) du volant est une surface de révolution conique.3. - mill according to claims 1 to 2, characterized in that the envelope (7) of the steering wheel is a conical surface of revolution.
4. - Fraise selon l'une des revendications 1 à 2, caractérisée en ce que l'enveloppe (7) est constituée de paliers circulaires. 4. - mill according to one of claims 1 to 2, characterized in that the casing (7) consists of circular bearings.
EP07848372A 2006-10-23 2007-09-27 Drill for dental use and with modulated inertia Withdrawn EP2086449A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0609264A FR2907332A1 (en) 2006-10-23 2006-10-23 Drill for e.g. endotonlogy, has active part, distal part for insertion of drill in hand piece, and proximal part with variable flywheel permitting to adjust flywheel according to dimensions of active part and/or work to be carried out
PCT/FR2007/052034 WO2008050017A1 (en) 2006-10-23 2007-09-27 Drill for dental use and with modulated inertia

Publications (1)

Publication Number Publication Date
EP2086449A1 true EP2086449A1 (en) 2009-08-12

Family

ID=38042834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07848372A Withdrawn EP2086449A1 (en) 2006-10-23 2007-09-27 Drill for dental use and with modulated inertia

Country Status (12)

Country Link
US (1) US20100028833A1 (en)
EP (1) EP2086449A1 (en)
JP (1) JP2010507427A (en)
KR (1) KR20090080934A (en)
CN (1) CN101516287A (en)
BR (1) BRPI0719238A2 (en)
CA (1) CA2656727A1 (en)
FR (1) FR2907332A1 (en)
MX (1) MX2009003976A (en)
RU (1) RU2009110191A (en)
TW (1) TW200940034A (en)
WO (1) WO2008050017A1 (en)

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Publication number Priority date Publication date Assignee Title
KR101066987B1 (en) * 2009-08-12 2011-09-23 주식회사 바이오제네시스 Drill for operating implant
KR101414978B1 (en) * 2012-11-29 2014-07-04 주식회사 네오바이오텍 Drill bit for implant having good injection of cooling water
EP3104418B8 (en) * 2015-06-08 2018-04-04 Meyer Burger (Germany) GmbH Method and device for texturing a silicon surface
RU204619U1 (en) * 2020-11-12 2021-06-02 Малкан Абдрашидовна Амхадова Dental bur
RU206854U1 (en) * 2021-03-22 2021-09-29 Александр Денисович Смирнов Dental bur

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KR100660771B1 (en) * 1999-06-03 2006-12-26 아스린 에스.아. Security device comprising a stop member for drilling instrument used in particular in dental surgery and device pre-calibrating and storing drilling depth

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Title
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Also Published As

Publication number Publication date
JP2010507427A (en) 2010-03-11
WO2008050017A1 (en) 2008-05-02
CN101516287A (en) 2009-08-26
CA2656727A1 (en) 2008-05-02
FR2907332A1 (en) 2008-04-25
US20100028833A1 (en) 2010-02-04
TW200940034A (en) 2009-10-01
MX2009003976A (en) 2009-04-28
KR20090080934A (en) 2009-07-27
RU2009110191A (en) 2010-09-27
BRPI0719238A2 (en) 2014-04-29

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