US205462A - Improvement in dental tools - Google Patents
Improvement in dental tools Download PDFInfo
- Publication number
- US205462A US205462A US205462DA US205462A US 205462 A US205462 A US 205462A US 205462D A US205462D A US 205462DA US 205462 A US205462 A US 205462A
- Authority
- US
- United States
- Prior art keywords
- improvement
- disk
- teeth
- periphery
- dental tools
- 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
Links
- 239000000126 substance Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 4
- 210000004268 Dentin Anatomy 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003116 impacting Effects 0.000 description 2
- 230000000266 injurious Effects 0.000 description 2
- 238000009114 investigational therapy Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/16—Bushings; Mountings
Definitions
- My invention is an improvement in disks for the removal and arrest of decay of the proximate surfaces of the teeth.
- the object of the present improvement Will be made sufficiently clear by the following statement: If thedecayedportions of theproximate surfaces of teeth affected by this disease are entirely cut away, smooth surfaces left, and permanent separations made, the decay will usually be arrested. When the decay is confined to the surfaces of the affected teeth, slight separations with a thin disk will'readily effect the object in view, and even after it has made further progress, within certain limits well understood by dentists, the decay may be removed with a thicker fiat disk; but after it has advanced still farther into the dentine a flat disk sufficiently thick for the purpose would destroy so much of the sound portions of the teeth as to be injurious.
- Figure 1 represents a section of the disk, with the periphery enlarged on both sides.
- Fig. 2 the enlargement is shown to be confined to one side.
- Fig. 3 is a perspective view of the improved disk.
- the disk may be made by well-known1nethods of any grinding or cutting material or substance, or combination of substances, suitable for the purpose.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Description
R. ARTHUR. Dental-Tools.
xhm W N, PETERS, PHOTO-LITMQGRAPHER, v/ASHINGTbN, D. C.
UNITED STATES PATENT QFFIGE. I
ROBERT ARTHUR, OF BALTIMORE, MARYLAND.
IMPROVEMENT IN DENTAL TOOLS.
Specification forming part of Letters Patent No. 205,462, dated July 2, 1878; application filed April 12, 1878.
To all whom it may concern Be it known that I, ROBERT ARTHUR, M. D., of Baltimore, in the county of Baltimore and State of Maryland, have invented an Improvement in Implements Employed in the Art of Dentistry, of which the following is a specifi'cation:
My invention is an improvement in disks for the removal and arrest of decay of the proximate surfaces of the teeth.
Letters Patent No. 133,617 were granted to me for a disk of certain form and dimensions, duly set forth in the specification of said Let- I ters Patent, for separating the teeth for the object above stated. This disk has been from the time of its introduction extensively employed for the purposes stated. It is flat, or nearly so, with a thin edge or periphery, and, while it is highly useful for the purpose indicated within certain limits well known to dental operators, fails to accomplish objects which, subsequent to the application for said Letters Patent, experience and further investigation have shown to be important.
For the purposes of this specification the object of the present improvement Will be made sufficiently clear by the following statement: If thedecayedportions of theproximate surfaces of teeth affected by this disease are entirely cut away, smooth surfaces left, and permanent separations made, the decay will usually be arrested. When the decay is confined to the surfaces of the affected teeth, slight separations with a thin disk will'readily effect the object in view, and even after it has made further progress, within certain limits well understood by dentists, the decay may be removed with a thicker fiat disk; but after it has advanced still farther into the dentine a flat disk sufficiently thick for the purpose would destroy so much of the sound portions of the teeth as to be injurious.
It has been found also that the contracted or wedge-shaped spaces made with the disks now in use favor the lodgment and impacting of extraneous substances between the separated teeth, in this way rendering much more liable the recurrence of decay at the parts from which it has been removed.
To obviate the difficulties stated I have devised my present improvement. It consists in making the disk somewhat larger at the periphery than at the center. This may be accomplished by giving it a wedge shape, with the thicker part at the periphery, or preferably by confining the enlargement to the parts at or near the periphery, as represented in the annexed drawing.
Figure 1 represents a section of the disk, with the periphery enlarged on both sides. In Fig. 2 the enlargement is shown to be confined to one side. Fig. 3 is a perspective view of the improved disk.
N o exact proportions can be stated, as slight variations within useful limits must be determined by the requirements of special cases. By means of disks of the form described, varied slightly at the periphery to suit special demands, any desirable curve may be given to the most important part of the separation without removing any portion of the teeth not essential to the object in view.
The disk may be made by well-known1nethods of any grinding or cutting material or substance, or combination of substances, suitable for the purpose.
Having described my improvement, what I claim is- As an article of manufacture, a disk for the separation of the teeth, when formed with a thickened periphery, as and for the purpose set forth.
ROBERT ARTHUR, M. D. Witnesses:
WM. H. ARTHUR, UPToN SooTT.
Publications (1)
Publication Number | Publication Date |
---|---|
US205462A true US205462A (en) | 1878-07-02 |
Family
ID=2274866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US205462D Expired - Lifetime US205462A (en) | Improvement in dental tools |
Country Status (1)
Country | Link |
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US (1) | US205462A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255289A (en) * | 1961-12-06 | 1966-06-07 | Tysaman Machine Company Inc | Methods of making abrasive wheels |
US6254468B1 (en) * | 1998-07-13 | 2001-07-03 | Identoflex Ag | Method for the manufacture of dental tools for the treatment of surfaces |
-
0
- US US205462D patent/US205462A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255289A (en) * | 1961-12-06 | 1966-06-07 | Tysaman Machine Company Inc | Methods of making abrasive wheels |
US6254468B1 (en) * | 1998-07-13 | 2001-07-03 | Identoflex Ag | Method for the manufacture of dental tools for the treatment of surfaces |
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