US874379A - Dental crown-driver. - Google Patents
Dental crown-driver. Download PDFInfo
- Publication number
- US874379A US874379A US38994707A US1907389947A US874379A US 874379 A US874379 A US 874379A US 38994707 A US38994707 A US 38994707A US 1907389947 A US1907389947 A US 1907389947A US 874379 A US874379 A US 874379A
- Authority
- US
- United States
- Prior art keywords
- crown
- driver
- dental crown
- cup
- driven
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
- A61C3/14—Dentists' forceps or the like for extracting teeth
Definitions
- the present invention relates to a device for driving dental crowns and it has for an object to provide a construction which will effectively drive the crown without destroying its shape.
- Figure l is an enlarged top view of one embodiment of my device, before the plasticsubstance is inserted therein.
- Fig. 2 is a like view showing the plastic substance with an impression of a crown.
- Fig. 3 is a side view of the same device.
- Fig. 4 is a section on line a-a of Fig. 2.
- a suitable support 1 in the form of a stem having at one end a container or cup-shaped member 2 which has opposite portions of its walls cut away to provide depressions 3 to receive those teeth on opposite sides of the crown to be driven.
- This cup shaped member 2 is adapted to receive a plastic substance 4, such as sealing wax, which has a depression 5 conforming to the shape of the crownto be driven.
- the cup is filled with the plas tic substance which is softened and given an impression of a crown and is then dipped in water to cool it quickly.
- the depression thus formed should preferably ext end entirely through the plastic substance to the bottom of the cup so ,that the latter will form a solid surface to bear against the crown in driving.
- the driver being fitted to the crown and receiving blows the crown will be driven by the bottom wall of the cup and the side walls will be yieldingly supported by the plastic substance thus maintaining the shape.
- a dental crown driver comprising a suitable support and a container carried thereby and having opposite portions of its wall provided with cut-away portions.
- a dental crown driver comprising a suitable support, a container carried thereby and having opposite portions of its walls provided with cutaway portions, and a plastic substance arranged in the container.
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)
- Dental Prosthetics (AREA)
Description
I 0V W 7 w. M o n 9 w m 1 , w a 4, 2 5 4L nu! 4Li-== E f D .Q .m 5f E Q, Amm Hmm Ww LM@ HDM MND VWM. AMM umm Au .u Tw NL En.. om 7 31 CLARENCE ROBT. AVERILL,
OF WEBSTER, NEW YORK DENTAL CROWN-DRIVER.
Specification of Letters Patent.
Patented Dec. 24, 1907.
Application filed August 24, 1907. Serial No. 389.947.
To all whom it may concern:
Be it known that I, CLARENCE RoBT. AvERILL, of the town of Webster, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Crown-Drivers and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawing, forming a part of the specification, and to the reference-numerals marked thereon.
The present invention relates to a device for driving dental crowns and it has for an object to provide a construction which will effectively drive the crown without destroying its shape.
To these and other ends the invention consists in certain improvements and combinations of parts all as will be hereinafter more fully pointed out in the claims at the end of the speciiication.
In the drawings: Figure l is an enlarged top view of one embodiment of my device, before the plasticsubstance is inserted therein. Fig. 2 is a like view showing the plastic substance with an impression of a crown. Fig. 3 is a side view of the same device. Fig. 4 is a section on line a-a of Fig. 2.
In driving gold crowns it is customary to deliver blows only on the top thereof without supporting the side walls and as a consequence the crown in many instances is crushed. In this invention this objection is obviated by providing a driver having a driving face cor#k responding to the shape of the crown to be driven so that equal pressure is applied to all exposed faces.
In the present embodiment I employ a suitable support 1 in the form of a stem having at one end a container or cup-shaped member 2 which has opposite portions of its walls cut away to provide depressions 3 to receive those teeth on opposite sides of the crown to be driven. This cup shaped member 2 is adapted to receive a plastic substance 4, such as sealing wax, which has a depression 5 conforming to the shape of the crownto be driven. In operation the cup is filled with the plas tic substance which is softened and given an impression of a crown and is then dipped in water to cool it quickly. The depression thus formed should preferably ext end entirely through the plastic substance to the bottom of the cup so ,that the latter will form a solid surface to bear against the crown in driving. Upon the driver being fitted to the crown and receiving blows the crown will be driven by the bottom wall of the cup and the side walls will be yieldingly supported by the plastic substance thus maintaining the shape.
It is apparent that I have provided a device which is simple in operation and inexpensive to manufacture. Further it will not only expedite the driving of gold crowns, but will improve the appearance of driven crowns.
I claim as my invention:
1. A dental crown driver comprising a suitable support and a container carried thereby and having opposite portions of its wall provided with cut-away portions.
2. A dental crown driver comprising a suitable support, a container carried thereby and having opposite portions of its walls provided with cutaway portions, and a plastic substance arranged in the container.
Witnesses:
H. II. SIMMs, HENRY W. HALL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38994707A US874379A (en) | 1907-08-24 | 1907-08-24 | Dental crown-driver. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38994707A US874379A (en) | 1907-08-24 | 1907-08-24 | Dental crown-driver. |
Publications (1)
Publication Number | Publication Date |
---|---|
US874379A true US874379A (en) | 1907-12-24 |
Family
ID=2942823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US38994707A Expired - Lifetime US874379A (en) | 1907-08-24 | 1907-08-24 | Dental crown-driver. |
Country Status (1)
Country | Link |
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US (1) | US874379A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3727314A (en) * | 1971-12-27 | 1973-04-17 | D Zbylut | Dental tool |
-
1907
- 1907-08-24 US US38994707A patent/US874379A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3727314A (en) * | 1971-12-27 | 1973-04-17 | D Zbylut | Dental tool |
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