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WO1999066857A1 - Microgodet pour materiau dentaire - Google Patents

Microgodet pour materiau dentaire Download PDF

Info

Publication number
WO1999066857A1
WO1999066857A1 PCT/EP1999/004240 EP9904240W WO9966857A1 WO 1999066857 A1 WO1999066857 A1 WO 1999066857A1 EP 9904240 W EP9904240 W EP 9904240W WO 9966857 A1 WO9966857 A1 WO 9966857A1
Authority
WO
WIPO (PCT)
Prior art keywords
dental material
hollow shell
micro
bowl
recess
Prior art date
Application number
PCT/EP1999/004240
Other languages
German (de)
English (en)
Inventor
Andreas GRÜTZNER
Original Assignee
Dentsply Detrey Gmbh
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
Priority claimed from DE19827479A external-priority patent/DE19827479A1/de
Application filed by Dentsply Detrey Gmbh filed Critical Dentsply Detrey Gmbh
Publication of WO1999066857A1 publication Critical patent/WO1999066857A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/005—Devices for the manual mixing of small quantities of materials, e.g. trays for mixing dental porcelain

Definitions

  • the present invention relates to a micro bowl for working with liquid dental material.
  • Liquid dental material is known in the dental field and is used during the treatment of the patient. Liquid dental material often contains light-curable constituents, light-sensitive initiator systems or volatile constituents and is often only used in very small amounts. In addition, liquid dental material often has to be mixed before use.
  • dental material is mixed in a dish open to the top, a so-called dappen dish, as soon as possible before use.
  • a dish open to the top a so-called dappen dish
  • volatile constituents of the dental material evaporate quickly and the processing time of the dental material is thereby shortened.
  • a large evaporation problem Especially when processing small amounts of dental material in flat trays, there is a large evaporation problem.
  • the micro bowl of the present invention has the advantage that evaporation of volatile substances is reduced by the depression in the top of the hollow shell which is open at the bottom.
  • the depression is designed in such a way that the ratio of the exposed surface to the volume of the liquid dental material is low.
  • the design of the micro bowl allows the dental material to be effectively protected from light if a second micro bowl is placed on the first micro bowl filled with material in the sense of a closure.
  • the dental material forms only a small surface in the open micro bowl, which is exposed to exposure. Otherwise, the dental material in the micron dish is shielded in the lateral direction by two wall areas of the hollow shell which is open at the bottom.
  • the micro bowl can be designed with a wall thickness which is less than that which would be necessary in order to effectively protect the dental material from light. Furthermore, the operator never touches the wall area that directly surrounds the dental material when handling the micro bowl. Therefore, the micro bowl can be held in the hand for a long time without causing undesirable heating of the Dental material and thus thermal polymerization or evaporation of the volatile components by the body heat of the surgeon.
  • the hollow shell open at the bottom has a diameter in the range from 10 to 50 mm, preferably 15 to 35 mm, most preferably 25 mm.
  • the height of the hollow shell is preferably in the range from 5 to 50 mm, preferably 10 to 30, most preferably 15 mm.
  • the hollow shell is preferably designed so that the micro bowl comes to a stand on a flat surface with three support legs.
  • the hollow shell, which is open at the bottom preferably consists of a plastic material, wherein the plastic material can contain portions of recycled plastic.
  • the hollow shell, which is open at the bottom is preferably made of a material that is opaque to light of a wavelength that would cause the dental material to polymerize.
  • the depression in its lower region is preferably designed such that it has a small diameter, preferably a diameter in the range from 2 to 12 mm, more preferably a diameter from 5 to 7 mm.
  • the funnel area which represents the transition between the outer surface of the hollow shell and the inner surface of the depression, has in its widest area a diameter which is larger than the largest diameter of the depression in the lower area, the diameter of the funnel area in the range from 3 to 24 mm, preferably 10-14 mm.
  • the micro bowl according to the invention is designed in such a way that several micro bowls can be stacked on top of one another.
  • the funnel area of a micro bowl cooperates with a corresponding surface of the inside of the hollow shell of a next upper micro bowl in the sense of a closure of the depression.
  • Figure 1 is a side view with a section of a micro bowl according to the invention
  • Figure 2 is a side view of a 30 ° around the in relation to Figure 1
  • FIG. 3 shows a top view of a microwell
  • FIG. 4 shows a stack of two microwells according to the invention
  • FIG. 5 shows an enlarged sectional view of the stack from FIG. 4.
  • FIG. 1 shows a micro bowl (1) which comprises a hollow shell (3) which has an outer side (31), an inner side (33) and an edge (35).
  • the edge of the hollow shell which is open at the bottom, is designed such that the hollow shell comes to a stand on three legs (351, 352, 353) on a flat surface.
  • the legs preferably taper to the bottom.
  • the micro bowl (1) further comprises a recess (5) which has an inner surface (51).
  • the inner surface (51) merges into the outside (31) of the hollow shell, the transition (52) being designed as a funnel region (7).
  • the micro bowl (1) has a surface (9) on the inside (33) of the hollow shell (3) that corresponds to the funnel area of another micro bowl.
  • the surface (9) is designed in such a way that it interacts with the funnel area (7) of a next lower micro-bowl in the sense of a closure of the corresponding depression.
  • Figure 1 a part of the side view is shown with a section. From the sectional drawing it is clear that this embodiment consists of a thin-walled hollow shell open at the bottom. However, it goes without saying that embodiments are also conceivable in which the hollow shell which is open at the bottom has wall regions which have different wall thicknesses. For example, it is conceivable that the hollow shell has ribs or other reinforcing elements that ensure stability or guidance.
  • FIG. 2 is a phantom drawing and corresponds to the embodiment shown in Figure 1 with the object shown rotated 30 °.
  • FIG. 2 shows that the legs of the micro bowl can be obtained from a hollow shell by cutting the hollow shell at an angle ( ⁇ ) with respect to the stand area A.
  • FIG. 3 shows a top view of a micro bowl according to the invention, three concentric areas being visible.
  • the outer area consists of the outside (31) of the hollow shell (3), which surrounds the funnel area (7) of the recess (5).
  • the funnel area (7) surrounds the depression (5).
  • the stack of two micro-bowls according to the invention in FIG. 4 shows how the funnel area (7) of a lower micro-bowl interacts with a corresponding surface (9) of an upper micro-bowl in the sense of closing the recess.
  • the micro-bowl is preferably only in contact via the funnel area (7) and the corresponding surface (9).
  • contact of the inside (33) of the hollow shell (3) in the region of the legs (351, 352, 353) with the lower microwell is preferably avoided, since otherwise an effective closure of the recess (5) is prevented.
  • lugs are formed in the area of the supporting legs (351, 352, 353), which can engage in corresponding recesses on the outside of the hollow shell in a force-locking or positive manner. This advantageously ensures that a plurality of micro-bowls can be arranged in a stable manner one above the other and that there is no need to fear that the dental material will leak even if the stack tips over. It is also conceivable that the legs are designed in such a way that they cooperate with a surface specially provided for this purpose in order to fix the micro-bowl.
  • a micro bowl is filled with dental material, the rim shaped as a funnel making it easier to fill with dripping material.
  • the dental material can then simply be mixed in the recess using an appropriate tool, such as a spatula.
  • the configuration of the depression on the top of the hollow shell which is open at the bottom reduces the ratio between surface and volume of the dental material, and the evaporation of volatile components is slowed down. This significantly extends the time in which the dental material can be processed.
  • the microwell can simply be closed with a second microwell by stacking.
  • a suitable tool such as a brush, a pipette or a syringe
  • it can easily be inserted into the relatively small opening in the depression, since the tool is from the funnel area -, -
  • the funnel area has the additional function that a material dripping onto the edge of the depression flows into the depression. This considerably simplifies working with liquid dental material and counteracts accidental dripping of liquid dental material.
  • the microwell according to the invention can be disposed of together with the remaining unused dental material.
  • the micro bowl is preferably made of recycled plastic and is designed for single use.
  • the micro bowl according to the invention is not only suitable for holding dental material. It is, of course, conceivable that the micro bowl is used in other fields, such as when working with oil paints.

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

L'invention concerne un microgodet pour effectuer des soins avec un matériau dentaire liquide, ledit microgodet comprenant une coque ouverte vers le bas, sur le côté supérieur de laquelle est prévu un évidement servant à recevoir le matériau dentaire. La jonction entre la surface extérieure de la coque et la surface intérieure de l'évidement se présente sous la forme d'une zone en entonnoir pour l'alimentation en matériau dentaire. Le contour extérieur et le contour intérieur sont conçus de sorte que plusieurs microgodets peuvent être empilés les uns sur les autres, et la zone en entonnoir d'un microgodet coopère avec une surface correspondante du côté intérieur d'un microgodet placé juste au-dessus, afin d'obturer l'évidement.
PCT/EP1999/004240 1998-06-19 1999-06-18 Microgodet pour materiau dentaire WO1999066857A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19827479.3 1998-06-19
DE19827479A DE19827479A1 (de) 1998-06-19 1998-06-19 Mikronapf
US9215498P 1998-07-09 1998-07-09
US60/092,154 1998-07-09

Publications (1)

Publication Number Publication Date
WO1999066857A1 true WO1999066857A1 (fr) 1999-12-29

Family

ID=26046924

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/004240 WO1999066857A1 (fr) 1998-06-19 1999-06-18 Microgodet pour materiau dentaire

Country Status (1)

Country Link
WO (1) WO1999066857A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998011845A1 (fr) * 1996-09-23 1998-03-26 Minnesota Mining And Manufacturing Company Plateau jetable de distribution de produits dentaires

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998011845A1 (fr) * 1996-09-23 1998-03-26 Minnesota Mining And Manufacturing Company Plateau jetable de distribution de produits dentaires

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