子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | Vibratory mill and method of use for low contamination grinding | US205901 | 1998-12-04 | US5979805A | 1999-11-09 | Christos Angeletakis |
| The present invention provides a vibratory mill having a grinding chamber, preferably coated with an abrasion resistant polymer, the grinding chamber being charged with glass beads having a diameter in the range of about 0.1 mm to about 10.00 mm. There is further provided a method of using this mill to provide substantially pure ground dental filler particles having an average particle size less than the average wavelength of visible light. | ||||||
| 2 | Intracoronal bristle brush | US688665 | 1996-07-29 | US5766008A | 1998-06-16 | Michael F. Hughes |
| An intracoronal bristle brush for preparing a tooth cavum comprising a plurality of bristles and a dental bit having a first end being a shank adapted to be received by a dentist's handpiece and a second end for receiving the plurality of bristles. The plurality of bristles emanate outwardly in a uniform manner from an axial hole within the second end. The diameter of the intracoronal bristle brush is substantially uniform along its entire length such that the bristles of the brush may penetrate into an interior surface of a tooth cavum. | ||||||
| 3 | Single patient dose medicament dispenser with applicator | US275003 | 1994-07-13 | US5660273A | 1997-08-26 | John J. Discko, Jr. |
| A tray having wells or depressions therein for holding a medicament or material and an applicator for applying the medicament or material. The applicator well has one open end from which a portion of the applicator extends. A cover seals the medicament or material well and the applicator well and a portion of the applicator. In one embodiment, the cover is a thin sheet or film that adheres or is heat sealed to substantially the entire surface of the tray. The portion of the applicator extending beyond the applicator well is used to facilitate the removal of the cover whereby the extended portion of the applicator acts as a lever to pry the cover form the body of the tray. Additionally, packaging material required to form the tray can be substantially lessened in those cases where the applicator that is relatively large in comparison with the amount of material to be packaged. Therefore, a larger applicator that is easy to use is associated with the material without unnecessary packaging. The dispenser or package permits small quantities of material to be easily dispensed for a single use or a single patient dose. Retaining means are provided for securing the applicator by friction fit within the applicator well. In another embodiment, a hinged cover is used in combination with a tray having multiple material wells which may be jointed or separately opened and closed. | ||||||
| 4 | Vibratory mill and method of use for low contamination grinding | US312299 | 1999-05-14 | US6098906A | 2000-08-08 | Christos Angeletakis |
| The present invention provides a vibratory mill for grinding dental filler having a grinding chamber, preferably coated with an abrasion resistant polymer, the grinding chamber being charged with glass beads having a diameter in the range of about 0.1 mm to about 10.00 mm, and a refractive index substantially matching that of the dental filler to be ground. There is further provided a method of using this mill and media to provide substantially pure ground particles having an average particle size less than the average wavelength of visible light that, when incorporated into a dental restorative composite, impart good optical properties to the cured material. | ||||||
| 5 | Single-dose double-cup package and method | US972400 | 1997-11-18 | US5947278A | 1999-09-07 | Ravi K. Sawhney; Lance Hussey |
| A thermoformed dual-compartment flexible package and method for storing and dispensing the components of a polymerizable system such as the base and catalyst portions of an addition cured dental impression material. Mutually reactive constituents are isolated during storage. A first embodiment of the package includes two thermoplastic cups each having an open mouth circumscribed by an annular groove, separated by a slotted aperture. The package further includes a thermoformed flexible closure having a central projection between two annular projections. Two seals are formed by engaging the annular projections within the grooves. A second embodiment includes two thermoplastic cups separated by a slotted aperture, with each cup having an open mouth from whose rim depends an outwardly canted wall terminating at a recessed lip. The package further includes a thermoformed flexible closure having a central projection between two annular, concavely arcuate projections each having an outwardly flared rim terminating in a beveled edge. Two seals are formed by pressing each arcuate projection into a cup rim so that its flared rim contacts the canted wall and the edge contacts the lip. | ||||||
| 6 | Single dose dental adhesive delivery system and method and adhesive therefor | US758383 | 1996-11-29 | US5860806A | 1999-01-19 | Leo J. Pranitis, Jr.; Daniel Ng |
| A dental adhesive delivery system provides a single usage amount of dental adhesive in a non-resealable container for use in treating a single patient. The packaged amount of adhesive may include up to the amount required to treat all of the teeth needing treatment of not more than a single patient, for example in the range of approximately 0.05 to 1.0 ml. The packaged amount may include a dose only large enough for the treatment of a single tooth or for the application of a single restoration, for example, in an amount of about 0.1 ml. The adhesive is one that includes a volatile solvent or other liquid carrier, such as, for example, water or an organic liquid such as acetone or alcohol. In the preferred embodiment, an alcohol based adhesive is provided having a filler of approximately 25% by weight. The single use container is preferably formed of injected molded plastic and includes a reservoir section that contains the adhesive and a break off section that surrounds an opening that receives a snap fit cap. A plastic and foil pouch constitutes a secondary containment volume or vapor seal which limits the escape of evaporated organic carrier or solvent. The cap and break off section are discarded and the adhesive is removed with the tip of a wand for application to the teeth of a patient, whereupon the container, which is not resealable, is discarded. | ||||||
| 7 | Dental amalgam capsule | US752383 | 1996-11-20 | US5816805A | 1998-10-06 | Jeffery James Cheetham |
| The invention relates to a dental amalgam capsule 10 arranged to contain mercury in a first compartment 16 and dental alloy powder in a second, or mixing, compartment 18, a conduit 28 being provided so that amalgam can be dispensed by a rod 66 directly from the capsule 10 into a cavity in a tooth. | ||||||
| 8 | Disposable dental brush | US325888 | 1989-03-20 | US5001803A | 1991-03-26 | John Discko, Jr. |
| A disposable dental brush for applying various dental materials onto a tooth in thin, even coatings, e.g. etchants, sealants, bonding agents, tints, opaquers, varnishes and the like that includes an elongated straight handle having a tuft of bristles connected to one end thereof. The elongated handle is constructed so as to allow the portion thereof adjacent to the brush end relative to the longitudinal axis of to be readily bent so as to angularly dispose the brush end the handle. The arrangement is such that the brush can be used either as a straight brush or an angularly bent brush to reach difficult areas of the mouth or teeth. Also, the brush is made of inexpensive plastic material so as to render it readily expendible or disposable after each use. | ||||||
| 9 | Apparatus for preventing mercury contamination | US701501 | 1976-07-01 | US4079516A | 1978-03-21 | Thomas Donald Marshall |
| The invention is an apparatus for preventing mercury contamination during such processes as removing excess mercury from dental silver amalgam, mulling dental silver amalgam, and loading dental silver amalgam into a dispenser. The apparatus comprises a material permeable by free mercury under pressure and impermeable by dental silver amalgam. One surface of this material is enclosed by a flexible covering impermeable by either free mercury or mercury vapor. One or more voids are provided between the material and the covering for the purpose of retaining any excess mercury squeezed through the cloth. Means for enhancing retention of mercury in the void or voids may be provided. | ||||||
| 10 | Single patient dose medicament dispenser with applicator | US342756 | 1999-06-29 | US6116414A | 2000-09-12 | John J. Discko, Jr. |
| A tray having wells or depressions therein for holding a medicament or material and an applicator for applying the medicament or material. The applicator well has one open end from which a portion of the applicator extends. A cover seals the medicament or material well and the applicator well and a portion of the applicator. In one embodiment, the cover is a thin sheet or film that adheres or is heat sealed to substantially the entire surface of the tray. The portion of the applicator extending beyond the applicator well is used to facilitate the removal of the cover whereby the extended portion of the applicator acts as a lever to pry the cover form the body of the tray. Additionally, packaging material required to form the tray can be substantially lessened in those cases where the applicator that is relatively large in comparison with the amount of material to be packaged. Therefore, a larger applicator that is easy to use is associated with the material without unnecessary packaging. The dispenser or package permits small quantities of material to be easily dispensed for a single use or a single patient dose. Retaining means are provided for securing the applicator by friction fit within the applicator well. In another embodiment, a hinged cover is used in combination with a tray having multiple material wells which may be jointed or separately opened and closed. | ||||||
| 11 | Device for storing and dispensing a flowable substance | US130630 | 1998-08-06 | US6105761A | 2000-08-22 | Marc Peuker; Mathias Bertl; Dieter Poschmann |
| A device for storing and dispensing substances, preferably small quantities of liquids, including a container formed by two sheets, interconnected by hot sealing and cooperating to form a compartment for receiving the liquid and a pocket for receiving a brush. In the area between the compartment and the pocket, the connection between the sheets includes a pre-defined break zone which can be released by pressure exerted on the compartment, to force the liquid from the compartment into the pocket and wet the tip of the brush disposed therein. | ||||||
| 12 | Disposable dental applicator | US934983 | 1997-09-22 | US6049934A | 2000-04-18 | John J. Discko |
| A tubular applicator handle having an applicator integrally formed on either end. The applicable integrally formed on either end may be a brush, foam pad, fuzzy ball or other similar or equivalent applicator, for applying a liquid, paste or powder. The applicator handle may or may not have a scribe or score line intermediate either end. The applicator handle may be broken along the score or scribe line forming two separate independent applicators. This greatly reduces waste and provides increased convenience to the user who can either use the double ended applicator or, if desired, two separate single ended applicators. A bendable portion is provided adjacent each applicator so that the angle of the applicator may be changed as desired. The present invention has particular adaptability in the dental field for applying dental materials, but may be valuable in other fields, such as electronics. | ||||||
| 13 | Dental etch and package therefor | US680136 | 1996-07-15 | US5954996A | 1999-09-21 | John J. Discko, Jr. |
| This disclosure relates to an anhydrous dental etchant composition that includes a mixture of phosphoric acid or an equivalent and anhydrous glycerin having a final acid concentration in the range of 10% to 40%, and having a trace of a color indicator therein; and a unit package and dispenser for the anhydrous dental etch that includes an applicator and a predetermined amount of anhydrous etchant which is self contained for single patient application and which can be readily disposed of after use. | ||||||
| 14 | Intracoronal bristle brush | US14826 | 1998-01-28 | US5927983A | 1999-07-27 | Michael F. Hughes |
| An intracoronal bristle brush for preparing a tooth cavum comprising a plurality of bristles and a dental bit having a first portion being a shank adapted to be received by a dentist's handpiece and a second portion for receiving the plurality of bristles. The plurality of bristles emanate outwardly in a uniform manner from an axial hole within the second portion. The diameter of the intracoronal bristle brush dental bit ranges from substantially uniform to a tapered diameter towards the second portion such that the bristles of the brush may penetrate into an interior surface of a tooth cavum. | ||||||
| 15 | Method and apparatus for reattaching a detached crown of an installed dental bridge | US439688 | 1995-05-12 | US5695339A | 1997-12-09 | Dennis J. Abere |
| A method for reattaching to a first abutment tooth a detached crown of a dental bridge having at least one other crown fixed onto a second abutment tooth includes the steps of forming a vent hole through the detached crown, inserting the open tip of a syringe needle into the vent hole, preliminarily securing and sealing the needle in the vent hole and thereafter applying a flowable dental adhesive material such as an acrylic resin to securely reinforce the connection between the needle and crown and seal any gap therebetween. The void under the detached crown is then washed by ejecting fluids through the needle with a syringe barrel. A flowable dental cement is then ejected through the needle to fill the void between the crown and abutment tooth. Upon curing of the cement, the acrylic resin is dislodged from the surface of the crown enabling withdrawal of the needle from the vent hole which is then plugged. The syringe apparatus of the invention includes a barrel and plunger coupled to a needle having exterior surface irregularities or prongs adjacent but spaced from the open tip of the needle so that they will be covered by the acrylic resin for securing the needle to the crown. | ||||||
| 16 | Dental compound applicator | US560807 | 1995-11-21 | US5626473A | 1997-05-06 | Ernst Muhlbauer; Edgar Lein |
| A dental compound applicator, having a shaft (1) that can be gripped in pencil-hold fashion, the front end of which can be connected to a syringe (4) containing the dental compound and a plunger, and containing a piston (6) for driving forward the plunger, which piston is connected to an actuation device (10) in that region of the shaft where a fingertip is located when gripping in pencil-hold fashion. The actuation device (10) comprises a toothed wheel which is mounted on the shaft, can be rotated by the fingertip and engages in a rack provided on the piston (6). The toothed wheel can consist of a larger grip wheel to be actuated using the finger, and a smaller pinion, cooperating with the rack, so that gearing down results. | ||||||
| 17 | Disposable dental brush | US671523 | 1991-03-19 | US5150495A | 1992-09-29 | John Discko, Jr.; William B. Dragan |
| A disposable dental brush for applying various dental materials onto a tooth in thin even, coatings, e.g. etchants, sealants, bonding agents, tints, opaquers, varnishes and the like that includes an elongated straight handle having a tuft of bristles connected to one end thereof. The elongated handle is constructed so as to allow the portion thereof adjacent to the brush end to be readily bent so as to angularly dispose the brush end relative to the longitudinal axis of the handle. The arrangement is such that the brush can be used either as a straight brush or an angularly bent brush to reach difficult areas of the mouth or teeth. Also, the brush is made of inexpensive plastic material so as to render it readily expendable or disposable after each use. | ||||||
| 18 | Orthodontic visual enhancement method | US669653 | 1991-03-14 | US5096417A | 1992-03-17 | Michael H. Greenberg; Richard S. Arnstine |
| A method for visually highlighting the structural features of orthodontic appliances to facilitate easy discernment of difficult-to-see features, thereby simplifying and reducing the time required for therapeutic readjustment of orthodontic appliances, is disclosed, wherein a contrasting coloring agent is applied directly to the orthodontic appliances to achieve the desired results without any accompanying undesirable effects or disadvantages. | ||||||
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