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Publication numberUS3898738 A
Publication typeGrant
Publication dateAug 12, 1975
Filing dateDec 10, 1973
Priority dateDec 10, 1973
Publication numberUS 3898738 A, US 3898738A, US-A-3898738, US3898738 A, US3898738A
InventorsLinder John E
Original AssigneeLinder John E
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Dental instrument
US 3898738 A
Abstract
A stainless steel, scissors-like dental instrument having opposed egg-shaped padded members engageable on opposite sides to grasp a cast metal or porcelain crown for seating and removal during try in and cementation procedures. The scissors-like instrument includes finger loops and a latch which holds the opposed members tightly in place.
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Description  (OCR text may contain errors)

United States Patent Linder Aug. 12, 1975 [54] DENTAL INSTRUMENT 3,043,008 7/1962 Barishman 32/40 R [76] Inventor: John E. Linder, 5039 Winding Branch Dr Atlanta, Ga, 30333 Primary Examiner-Robert Peshock [22] Filed ec 0 1973 Attorney, Agent, or FirmPatrick F. Henry [21] Appl. No.: 423,511 ABSTRACT [52] U S Cl 32/41, 32/62 A stainless steel, scissors-like dental instrument having [51] In} .Cl A6, 11/02 pp gg p padded members engageable on 58 Fieid /41 61 62 opposite sides to grasp a cast metal or porcelain crown for seating and removal during try in and cementation [56] References Cited procedures. The scissors-like instrument includes finger loops and a latch which holds the opposed mem- UNITED STATES PATENTS hers tightly in place l,628,499 5/1927 Joesch 32/62 2,674,800 4/1954 Osborn et al, 32/62 7 Claims, 4 Drawing Figures PATENTED Am: I 2 1915 3, 898,738

DENTAL INSTRUMENT BACKGROUND OF THE INVENTION 1. Field of the Invention Medical and surgical instruments and dental instruments.

2. Description of the Prior Art The following patents are noted:

l.l77,7(J6 1,158,872

The above-noted patents disclose instruments having to do with handling dental crowns and similar items. However, none discloses the particular arrangement disclosed in this application and especially in that none of the above devices is a scissors-like arrangement which may be held in one hand with a finger and thumb in a scissors opening to operate opposed members to latch and unlatch against a crown. The dentist must position and try a crown to determine its fit and proper occlusal relationship. If the crown fits well it is very difficult to remove in order to cement permanently to place. At present there is no instrument available to grasp the crown in order to remove. Additionally, crowns are generally placed in position during cementation with a thumb and forefinger. This becomes very difficult when working in the most posterior reaches of the mouth. None of the prior art devices provides such a simple, expedient tool.

SUMMARY OF THE INVENTION An object of this invention is to provide a simple and expedient dental instrument which may be held and operated by the fingers of one hand to grasp a dental crown or the like and hold it firmly on the end of the tool during the fitting and cementation process whereafter the crown is readily released.

Another object of this invention is to provide a scissors-like tool which is actuated by the fingers of one hand to latch and unlatch crown engaging members on opposite sides of a dental crown. The tool may also include a latching and unlatching means which is operable by manipulating the scissors.

Another object of this invention resides in the particular shape and inclination of the end of the scissors which carries the crown engaging members so that positioning in the mouth is facilitated.

Another advantage of the present invention is found in the arrangement of the small, concave crown engaging members which are provided with a soft cushion material such as polyethylene plastic and the like.

Other and further objects and advantages of this invention will become apparent upon reading the following description of a preferred embodiment in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top plan view of the dental instrument.

FIG. 2 is a perspective view of the crown engaging end of the dental instrument shown in FIG. 1.

FIG. 3 is a detailed view taken substantially along lines 3-3 in FIG. 1 of the latching and unlatching means.

FIG. 4 is an elevation view of the instrument shown in FIG. 1.

DESCRIPTION OF THE PREFERRED EMBODIMENT Y The instrument shown in FIG. 1 is a scissors desigparticularly 5 nated generally by reference numeral 10 and compris ing a pair of scissors handles l2, 14 each integrally formed with a scissors arm member 16, 18 which are tive scissors arm. The respective ends 26, 28 of each of the scissors arms 16, 18 are tapered and curved inwardly into small inwardly facing tips 30, 32, respectively, each having attached thereto a crown engaging pad member 34, 36, each respectively faced with a cushion member 38, 40 which may be a small pad of polyethyelene plastic glued or otherwise attached over the exposed surface of each respective pad 34, 36.

With reference to the elevation view in FIG. 4, it is noted that the ends 26, 28 of the respective scissors arms 16, 18 incline upwardly from the longitudinal position of the arms 16, 18 which places the opposed tips 30, 32 and the pads 34, 36 outwardly and above the pivot 20.

The scissors 10 is provided near the handles l2, 14 with a latching means designated generally by reference numeral 44 and comprising an integrally formed protrusion 46 from one scissors arm 16 and a similar protrusion 48 from the other scissors arm 18. Each protrusion 46, 48 is provided with a plurality of serrations 50 and with the serrations 50 on the member 46 facing upwardly and the serrations 50 on the member 48 facing downwardly so that the respective serrations will engage in different positions when the plane of the arms 16, 18 is bent slightly by pressure from the thumb and forefinger of the hand to either separate the latching members 46, 48 or engage same. Thus, when a dental crown is firmly engaged between the pads 38, 40, as for example in the position of FIG. 1, then slight pressure may be used to latch the latching means 44 to hold the dental crown temporarily in position while it is being manipulated and fitted in the mouth of the patient.

While I have shown and described a particular preferred embodiment of this invention this is by way of illustration and does not constitute the only form of the invention since various alterations, changes, deviations, eliminations, additions, changes and departures may be made in the preferred embodiment without departing from the scope of my invention as defined only by an interpretation of the appended claims.

What is claimed:

1. In a dental instrument for grasping a dental crown and the like which has a shape and surface similar to a tooth:

a. a scissors comprising a pair of movable members each having a tip opposed to and spaced from the other,

b. manually operated scissors handles on the respective members on said instrument for moving the tips of said members towards or away from each other selectively to grasp or release a crown and the like therebetween,

c. and a small cushioned and contoured pad affixed to each tip in opposed relationship on said tips, said pads being shaped to fit the opposite exterior of a crown and the like, whereby a dental crown and the like may be grasped by pressure on said handles from the hands causing said movable members to close said pads on said crown and the like and be held in place, during fitting and cementing.

2. The device claimed in claim 1, wherein portions of each member is inclined upwardly so that the tips of the instrument incline upwardly.

3. The device in claim 1, wherein said pads are curved and have a cushioned face thereon.

scissors handles so as to latch or unlatch the scissors when the pads are tightly positioned about a dental crown.

6. The device claimed in claim 1, wherein the tips of said members are curved outwardly and thence inwardly as well as upwardly thereby creating an upwardly extending pair of opposed tips defining a space in which a crown is clamped.

7. The device in claim 1, wherein said instrument is a scissors having the handles on each movable member which are opened and closed by manipulating the members, said members being inclined at the tips and curved outwardly and thence inwardly.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1628499 *Oct 20, 1924May 10, 1927Bernhard JoeschDental appliance
US2674800 *Mar 3, 1950Apr 13, 1954Osborn Elinor WLoose tooth remover
US3043008 *Oct 15, 1958Jul 10, 1962Harry BarishmanDental tools
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4197647 *Apr 3, 1978Apr 15, 1980Goldenthal Edgar JDental pliers
US4976617 *May 1, 1989Dec 11, 1990Carchidi Joseph EDental implant screw driver system
US5044954 *Oct 23, 1990Sep 3, 1991Thomas A. LukaseForceps with inserts for removing a dental crown and bridge
US5122058 *Oct 23, 1990Jun 16, 1992Thomas A. LukaseForceps with inserts for removing premolar and anterior dental crowns
US5833460 *Apr 9, 1997Nov 10, 1998Maeda; Ronald A.Controlled force crown and bridge remover
US6193514 *Mar 29, 1999Feb 27, 2001Terrence L. HoranAdjustable dental instrument
US6921263Jun 7, 2002Jul 26, 2005Terrence L. HoranAdjustable dental instrument having a multi-detent latch
US7306461 *Feb 6, 2003Dec 11, 2007New York UniversityCarrier and seating instrument for dental devices
US8182266 *Jul 23, 2009May 22, 2012Creasman Susan MDental tool
US8439850 *Nov 1, 2010May 14, 2013Coopersurgical, Inc.Cervical sizing devices and related kits and methods
US8876736 *Apr 10, 2013Nov 4, 2014Coopersurgical, Inc.Cervical sizing devices and related kits and methods
US9089373Jan 29, 2010Jul 28, 2015Medical Design Instruments, LlcSpinous process retractor
US9173719Nov 8, 2013Nov 3, 2015Beak And Bumper, LlcForce applying attachment, kit and method for pre-loosening a tooth in order to facilitate removal thereof
US9655689May 28, 2010May 23, 2017Beak And Bumper, LlcForceps for molar extraction
US9687315Aug 10, 2012Jun 27, 2017Beak And Bumper, LlcDental plier design with offsetting jaw and pad elements for assisting in removing upper and lower teeth utilizing the dental plier design
US9687316Jun 20, 2016Jun 27, 2017Sami MaassaraniDental covering removal tool
US20040157189 *Feb 6, 2003Aug 12, 2004Bell A. MiltonCarrier and seating instrument for dental devices
US20070112376 *Nov 14, 2005May 17, 2007Tri-State Hospital Supply CorporationMedical tubing clamping apparatus
US20090286199 *Jul 23, 2009Nov 19, 2009Creasman Susan MDental tool
US20100047740 *Aug 22, 2008Feb 25, 2010David FyffeDental crown remover
US20100092918 *Oct 9, 2007Apr 15, 2010WamForceps for gripping and transporting small objects, usable in particular in dental surgery
US20100241128 *Jan 29, 2010Sep 23, 2010Falahee Mark HSpinous process retractor
US20110027754 *Oct 7, 2010Feb 3, 2011Richard GoldenDental pliers with adjustable bumper
US20110136077 *Aug 21, 2008Jun 9, 2011Philippe Albert Paul Ghislain De MoyerMethod for making a dental prosthesis and related surgical guide
US20120109014 *Nov 1, 2010May 3, 2012Coopersurgical, Inc.Cervical Sizing Devices and Related Kits and Methods
US20130231589 *Apr 10, 2013Sep 5, 2013Coopersurgical, Inc.Cervical Sizing Devices and Related Kits and Methods
USD759818 *Apr 10, 2015Jun 21, 2016Steven PetersonCoping and crown holder
WO1992006646A1 *Aug 30, 1991Apr 30, 1992Lukase Thomas AForceps with inserts for removing dental prosthetics
WO2000057807A1 *Mar 29, 2000Oct 5, 2000Horan Terrence LAdjustable dental instrument
WO2008046981A2 *Oct 9, 2007Apr 24, 2008Wam (Sarl)Forceps for gripping and transporting small objects and usable in particular in dental surgery
WO2008046981A3 *Oct 9, 2007Jun 26, 2008Wam SarlForceps for gripping and transporting small objects and usable in particular in dental surgery
Classifications
U.S. Classification433/159, D24/153
International ClassificationA61C13/12, A61C3/10, A61C13/00, A61C3/00
Cooperative ClassificationA61C3/10, A61C13/12
European ClassificationA61C13/12, A61C3/10