US2253132A - Dental instrument - Google Patents

Dental instrument Download PDF

Info

Publication number
US2253132A
US2253132A US33799140A US2253132A US 2253132 A US2253132 A US 2253132A US 33799140 A US33799140 A US 33799140A US 2253132 A US2253132 A US 2253132A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
arms
end
tooth
forceps
nut
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.)
Expired - Lifetime
Application number
Inventor
Totten S Malson
Original Assignee
Totten S Malson
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
Grant date

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00Impression cups, i.e. impression trays; Impression methods
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/44Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44291Clasp, clip, support-clamp, or required component thereof including pivoted gripping member
    • Y10T24/44376Spring or resiliently biased about pivot
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/44Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44291Clasp, clip, support-clamp, or required component thereof including pivoted gripping member
    • Y10T24/4453Clasp, clip, support-clamp, or required component thereof including pivoted gripping member with position locking-means for gripping members

Description

Aug. 19, 1941. T, LSON 2,253,132

DENTAL INSTRI'JMENT Filed May 31, 1940 INVENTOR. 7'077'f/V 8.!74130/9 BY fizz/ Tm I ATTORNEYS.

Patented Aug. 19, 1941 UNITED STATES PATENT OFFICE DENTAL INSTRUMENT Totten S. Malson, Cleveland Heights, Ohio Application May 31, 1940, Serial No. 337,991

4 Claims. N 01. 3243) This invention relates broadly to dental instruments and more specificallyto improvements in forceps for taking plastic impressions of teeth or a portion of a tooth. One of the objects of the invention is to provide a dental instrument having a pair of arms pivotally connected together with a looking attachment formed on one end thereof for imparting a spring pressure upon the material retained between the opposed ends of the arms.

Another object of the invention is to provide a dental instrument consisting of a pair of arms pivotally connected together and having an end portion thereof curved to form fingertip con-.

trol handles with the curved portion of one of the arms extending across the other arm for the reception of a locking nut and washer.

Another object of the invention is to provide a pair of dental forceps having an end portion thereof curved downwardly to facilitate their reentrance in a patients mouth and engagement with a tooth along the medial axis thereof the end portions of the forceps being formed with recesses in their opposed faces for the retention of a plastic matrix material.

Another object of the invention is to provide an instrument which is designed to facilitate the manipulation and adjustment by one hand and the fingers thereof, the Weight of the instrument being proportioned so that the dentist may recognize the tensive effort of application during the use thereof.

Another object of the invention is to construct an instrument which is economic of manufacture, durable, and which may be sterilized without separation of the component parts thereof.

Other objects and advantages more or less ancillary to the foregoing and the manner in which all the various objects are realized will appear in the following description, which considered in connection with the accompanying drawing, sets forth the preferred embodiment of the invention.

Referring to the drawing wherein the preferred embodiment of the invention is illustrated:

Fig. 1 is a perspective view of a pair of dental forceps as viewed from the top thereof;

Fig. 2 is a perspective view of the opposite side of the dental forceps illustrated in Fig. 1 and showing the downwardly curved end portion and the cups for the retention of a plastic material;

Fig. 3 is a plan view of the instrument including in dotted lines the outline of a tooth retained between the plastic matrix material seated in the cups in the end portions of the forceps;

Fig. 4 is a side elevational view of the forceps shown in Fig. 1; and

Fig. 5 is a sectional view through a portion of the instrument, the section being taken on a plane indicated by line 5-5 in Fig. 1.

Referring to Figs. 1 and 2, the improved dental forceps embody a pair of arms l0 and H which are pivotally connected together, intermediate their ends by a rivet l2. The end portions [5 and I6 of the arms contiguous the pivotal connection are curved downwardly to accommodate their entry into the mouth of a patient and their engagement with a toothwithout obscuring the View of the dentist. Formed in the opposing faces of the end portions I5 and Hi there are recesses or cups I1 and I8 adapted to retain a plastic material therein while an impression of a tooth or a missing portion thereof is made.

The opposed end portions of the arms II] and I I are curved outwardly and inwardly to pro. vide handles 20 and 2| which permit the operator to employ a finger tip grip or control. The free end of the arm I 0 is curved inwardly and extended across the central portion [9 of both of the arms and is threaded for the reception of a flat surface 24 which forms withthe side of the arms a ledge for the engagement of the locking washer 22. i V

As shown in Fig. 5, the washer 22 is swiveled upon the nut 23 and is provided with a plurality of grooves or indentures in one end thereof. The grooved end of the washer is adapted to engage the ledge defined by the flat surface on the arm II when it is restrained from rotative movement as the nut is adjusted to effect the compressive engagement of the end portions of the arms or jaws l5 and it upon the tooth.

The improved dental forceps disclosed herein may beemployed as a matrix for either a synthetic filling or a direct inlay. In the use of the forceps as a matrix for a synthetic filling a plastic compound is heated and then molded into a wedge or cone form in the cups I! and I8, after which the material is allowed to cool. The surface of the patients tooth or teeth in the area of the cavity are lubricated after which the tips of the plastic material within the cups are surface heated prior to the forceps being clamped over the tooth containing the cavity. The nut the outline of the tooth.

After the plastic material has been chilled the forceps are released and lifted from the patients mouth and any irregularities appearing on the material, which may be caused by the cavity in the tooth, are then removed therefrom so that the matrix will conform to the contour of the tooth. The cavity in the tooth is then prepared and filled with a synthetic filling in the usual manner. When the filling is in place a Celluloid strip isplacecl thereover and the forceps with the matrix in the'end portions l5 and I6 are clamped upon the tooth by means of the nut 23. When the synthetic filling has set the forceps and Celluloid strip are removed. The use of the- Celluloid strip between the matrix and the filling provides for a polished finish onthe outer surface of the tooth and filling;

In obtaining a wax model for a direct inlay w the same procedure is followed as disclosed in connection with the synthetic filling, up to and including the preparation of the cavity. After the cavity is prepared the inlay wax is inserted therein and a thin strip of Celluloid is placed thereover. The forceps are then tightened -on the tooth by the nut 23 where they are retained until the wax-has set. a r a In the use of the. improved dental forceps in securing an impression of the form of a tooth or teeth for an indirect inlay a sphereof plastic matrix material is placed in each of the cups I1 and I8, after which the forceps are inserted Within the mouth of the patient and adjusted so that theplastic will encompass the tooth where, upon manipulation of the nut 23, it will be extruded to the contours and lineation of the objective mol-d. r

a When the nut 23 is tightened against the arm ll sufiicient spring pressure is initiated through the arms l0 and H and-through-the end portions and 16 to facilitate the support of the nstrument in self sustained position upon the tooth. It will be recognized that the impression obtained in the plastic material by means of the improved instrument will be free from air pockets, folds or deformation which would impair the accuracy thereof, since the matrix is formed under a sustained pressure and while the instru ment is supported in a fixed position.

Furthermore the matrix formed in the plastic material contained in the cups I1 and I8 will provide an accurate reproduction of the'contours of the teeth and/orportions thereof surrounding the cavity. Thus by first making an impression of the tooth then clamping the matrix over the filling theoriginal contour of the tooth will beaccurately reproduced in the filling.

It will'be further apparent that since the nut and Washer are disposed upon the threaded end of the arm [0 the dentist may effectuate adjustments with a finger of the hand employed in holding the forceps'and that the bent jaws of the instrument afford a wide latitude of adjustment and broader scope of vision.

, an end portion-of said arms having recesses in their opposing faces forming jaws, curved portions on the other end of said arms constituting finger engaging handles, the curved portion of one of said finger handles extending across said arms and constituting a spring, threads on the end of said portion and means mounted on the threaded end for adjusting said jaws and the pressure of said spring; a

2. A-dental tool embodying a-pair of crossed arms pivotally connectedto each other, opposed cups in an end of said arms for holding a plastic material, finger engaging handles on theother end of the arms, a portion of one of the handles extending across both of the arms and constituting -a spring, threads on the end thereof, a

locking washer and nut mounted on the threaded end and. adapted toengage one of said arms to restrict the pressure of the cupsupon the plastic material, 35A dental instrument embodying a pair of crossed arms pivotally connected toeach other, an end portion of said arms being curved downwardly and having recesses in their opposing faces, loops on the other end of said arms constituting finger grips, a flat surface on one of said'arm defining a ledge, the end of one of the loops extending across both of the arms, threads formed thereon, a nut, a washer swiveledl thereon, said nut threaded on said end, said washer having grooves in an end thereof for engaging said 'ledge to sustain a spring pressure through said arms which is initiated"v upon the tightening of the nut; r V

4; A dental tool embodying'a pairof crossed arms pivotallyconnected to each other adjacent one of their ends; downwardly curved portions in said arms contiguous their pivotal-connection, 'cups 'inthe opposed facesthereof for the support of a plastic material, a lineal extension on one 'of-said arms, a fiat surface on each of s aid arms, rings in the opposed end of said arms; said lineal extension projecting across said fiat surface of bothlia-rms, threads thereon and locking means mounted on said extension to impart a springpressure upon the plastic material between saidcupsg i i TOTTEN S. MALSONP

US2253132A 1940-05-31 1940-05-31 Dental instrument Expired - Lifetime US2253132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2253132A US2253132A (en) 1940-05-31 1940-05-31 Dental instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2253132A US2253132A (en) 1940-05-31 1940-05-31 Dental instrument

Publications (1)

Publication Number Publication Date
US2253132A true US2253132A (en) 1941-08-19

Family

ID=23322926

Family Applications (1)

Application Number Title Priority Date Filing Date
US2253132A Expired - Lifetime US2253132A (en) 1940-05-31 1940-05-31 Dental instrument

Country Status (1)

Country Link
US (1) US2253132A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2620793A (en) * 1951-04-05 1952-12-09 Gollubier Sarah Nose clip
US2629915A (en) * 1950-11-13 1953-03-03 Jack R Weiss Clamp
US3043008A (en) * 1958-10-15 1962-07-10 Barishman Harry Dental tools
US4214870A (en) * 1978-11-01 1980-07-29 Jacob Fagelman Dental clamp
US4785810A (en) * 1986-10-14 1988-11-22 Storz Instrument Company Intraocular lens folding and insertion apparatus
US4932966A (en) * 1988-08-15 1990-06-12 Storz Instrument Company Accommodating intraocular lens
US4944739A (en) * 1989-03-24 1990-07-31 Torre Randall J Bone gripping fixation clamp
US5120221A (en) * 1989-12-29 1992-06-09 Orenstein Jonathan H Dental clamp for use in implant restorative dentistry
US6099547A (en) * 1997-02-13 2000-08-08 Scimed Life Systems, Inc. Method and apparatus for minimally invasive pelvic surgery
US6450952B1 (en) 1998-04-23 2002-09-17 Scimed Life Systems, Inc. Medical body access device
US20030224325A1 (en) * 2002-06-04 2003-12-04 Ajay Kumar Dental tool with rententive feature
US6953428B2 (en) 2001-03-09 2005-10-11 Boston Scientific Scimed, Inc. Medical slings
US20120142498A1 (en) * 2010-08-23 2012-06-07 Empire Technology Development Llc Jaw exercise device

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629915A (en) * 1950-11-13 1953-03-03 Jack R Weiss Clamp
US2620793A (en) * 1951-04-05 1952-12-09 Gollubier Sarah Nose clip
US3043008A (en) * 1958-10-15 1962-07-10 Barishman Harry Dental tools
US4214870A (en) * 1978-11-01 1980-07-29 Jacob Fagelman Dental clamp
US4785810A (en) * 1986-10-14 1988-11-22 Storz Instrument Company Intraocular lens folding and insertion apparatus
US4932966A (en) * 1988-08-15 1990-06-12 Storz Instrument Company Accommodating intraocular lens
US4944739A (en) * 1989-03-24 1990-07-31 Torre Randall J Bone gripping fixation clamp
US5120221A (en) * 1989-12-29 1992-06-09 Orenstein Jonathan H Dental clamp for use in implant restorative dentistry
US6099547A (en) * 1997-02-13 2000-08-08 Scimed Life Systems, Inc. Method and apparatus for minimally invasive pelvic surgery
US6702741B2 (en) 1998-04-23 2004-03-09 Scimed Life Systems, Inc. Medical body access device
US6450952B1 (en) 1998-04-23 2002-09-17 Scimed Life Systems, Inc. Medical body access device
US9433488B2 (en) 2001-03-09 2016-09-06 Boston Scientific Scimed, Inc. Medical slings
US6953428B2 (en) 2001-03-09 2005-10-11 Boston Scientific Scimed, Inc. Medical slings
US7762969B2 (en) 2001-03-09 2010-07-27 Boston Scientific Scimed, Inc. Medical slings
US6951462B2 (en) 2002-06-04 2005-10-04 Zimmer Dental Inc. Dental tool with rententive feature
US20030224325A1 (en) * 2002-06-04 2003-12-04 Ajay Kumar Dental tool with rententive feature
US20120142498A1 (en) * 2010-08-23 2012-06-07 Empire Technology Development Llc Jaw exercise device
US9192812B2 (en) * 2010-08-23 2015-11-24 Empire Technology Development Llc Jaw exercise device

Similar Documents

Publication Publication Date Title
US3390458A (en) Method of preparing for dental impressions
US3200497A (en) Method of reproducing dental relationships on an articulator
Schiffman Relation of the maxillary canines to the incisive papilla
Mann et al. Oral rehabilitation: Part I. Use of the PM instrument in treatment planning and in restoring the lower posterior teeth
US3206852A (en) Dental articulator
US3016052A (en) Mouth protector
Lauritzen et al. Variations in location of arbitrary and true hinge axis points
US2966908A (en) Universal mouth protector
US5032082A (en) Device for removing adhesive from the palate
US3241550A (en) Mouth retractor
US2851728A (en) Interlockable dental dowel pin and repositioning gauge and method of using
US6712608B2 (en) Anatomically contoured matrix bands for use in dental restoration procedures
Caldwell et al. Microhardness studies of intact surface enamel
US4075494A (en) Orally receptive holder for a dental x-ray film paquette
US4619610A (en) Dental impression tray
Kapur et al. The effect of denture factors on masticatory performance: Part IV. Influence of occlusal patterns
US3084438A (en) Dental method and apparatus
US2611182A (en) Anatomical contact-forming dental matrix band for anterior teeth
US2933811A (en) Dental bite tray
US1323832A (en) Touted statm parentoffice
US4634377A (en) Device for aligning artificial teeth and crowns
US3924638A (en) Tension reliever
US4118870A (en) Eyebrow contour guide
US5385471A (en) Cerec inlay holder and inserter
US4906186A (en) Template for setting artificial teeth in a denture