US1317832A - Plamoqraph co - Google Patents
Plamoqraph co Download PDFInfo
- Publication number
- US1317832A US1317832A US1317832DA US1317832A US 1317832 A US1317832 A US 1317832A US 1317832D A US1317832D A US 1317832DA US 1317832 A US1317832 A US 1317832A
- Authority
- US
- United States
- Prior art keywords
- backing
- chamber
- pins
- tooth
- secured
- 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
- 239000002184 metal Substances 0.000 description 8
- 229910052573 porcelain Inorganic materials 0.000 description 8
- 239000003479 dental cement Substances 0.000 description 6
- 206010022114 Injury Diseases 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000000994 depressed Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000018984 mastication Effects 0.000 description 2
- 238000010077 mastication Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/10—Fastening of artificial teeth to denture palates or the like
- A61C13/102—Fastening of artificial teeth to denture palates or the like to be fixed to a frame
- A61C13/1023—Facing and backing
Definitions
- VERNON SPENCER OF MOSMAN, NEAR SYDNEY, NEW SOUTH WALES, AUSTRALIA.
- the invention relates to artificial teeth and more particularly to detachable porcelain facings which are employed in connection with metal backing plates to build up bridge work.
- the principal object of the invention consists in providing at the backing a depression to form a chamber and having an integral flange overhanging all sides of the inlet opening of said chamber, the headed pins of the facing being secured in said chamber by dentalcement.
- Figure 1 is a sectional elevation
- Fig. 2 a transverse section of a pin tooth provided with my improved backing.
- Figs. 3 and 4 are rear and front perspective views illustrating the backing.
- 5 is a porcelain tooth provided with the metal pins 6 which may be headed as shown or they may be the usual straight pins bent angularly.
- 7 is a thin metal backing having thereon a recess or chamber 8 in which the pins take and are secured therein by dental cement 9 of any suitable kind.
- Theentrance to the recess is preferably of slightly less cross sectional area than the recess itself in order to insure better retention of the cement and the pins embedded therein.
- one end of the backing is bent over the edge of the tooth as at 10 and burnished forming a tip which takes the stress .of mastication, protecting the porcelain from injury, and strengthening the bite.
- a metal backing for a porcelain tooth having headed pins, said backing being depressed to form a chamber and having an integral flange overhanging all sides of the inlet opening of said chamher, the headed pins being secured in said chamber by dental cement, substantially as described.
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 Preparations (AREA)
Description
v. SPENCER, ARTIFICIAL TOOTH.
APPLICATION FILED 06114 1918.
1,317,832. Patented 0 I.7,1919.
THE COLUMBIA PLANOGRAPH co., WASHINGTON, n. c.
VERNON SPENCER, OF MOSMAN, NEAR SYDNEY, NEW SOUTH WALES, AUSTRALIA.
ARTIFICIAL TOOTH.
Specification of Letters Patent.
Patented Oct. 7, 1919.
Application filed October 14, 1918. Serial No. 257,983.
Australia, have invented certain new and useful Improvements in Artificial Teeth, of which the following is a specification.
The invention relates to artificial teeth and more particularly to detachable porcelain facings which are employed in connection with metal backing plates to build up bridge work.
The principal object of the invention consists in providing at the backing a depression to form a chamber and having an integral flange overhanging all sides of the inlet opening of said chamber, the headed pins of the facing being secured in said chamber by dentalcement.
In order that the invention may be readily understood, I will now refer to the drawings herewith which are on. an exaggerated scale for sake of clearness.
Figure 1 is a sectional elevation, and
Fig. 2 a transverse section of a pin tooth provided with my improved backing.
Figs. 3 and 4 are rear and front perspective views illustrating the backing.
The same numerals indicate the same parts.
5 is a porcelain tooth provided with the metal pins 6 which may be headed as shown or they may be the usual straight pins bent angularly. 7 is a thin metal backing having thereon a recess or chamber 8 in which the pins take and are secured therein by dental cement 9 of any suitable kind. Theentrance to the recess is preferably of slightly less cross sectional area than the recess itself in order to insure better retention of the cement and the pins embedded therein.
In removing a tooth so secured for the purpose of substituting another, the operation' can be readily performed with the usual dental instruments.
Preferably one end of the backing is bent over the edge of the tooth as at 10 and burnished forming a tip which takes the stress .of mastication, protecting the porcelain from injury, and strengthening the bite.
By soldering or forming a retainer on the backing it may be employed with vulcanite or other like composition plates.
I claim r In artificial teeth, a metal backing for a porcelain tooth having headed pins, said backing being depressed to form a chamber and having an integral flange overhanging all sides of the inlet opening of said chamher, the headed pins being secured in said chamber by dental cement, substantially as described. 1
In testimony whereof I have hereunto set my hand.
VERNON SPENCER.
Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, D. 0."
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1317832A true US1317832A (en) | 1919-10-07 |
Family
ID=3385312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1317832D Expired - Lifetime US1317832A (en) | Plamoqraph co |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1317832A (en) |
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0
- US US1317832D patent/US1317832A/en not_active Expired - Lifetime
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