US178143A - Improvement in artificial teeth - Google Patents
Improvement in artificial teeth Download PDFInfo
- Publication number
- US178143A US178143A US178143DA US178143A US 178143 A US178143 A US 178143A US 178143D A US178143D A US 178143DA US 178143 A US178143 A US 178143A
- Authority
- US
- United States
- Prior art keywords
- teeth
- improvement
- artificial teeth
- tooth
- celluloid
- 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
- 210000000515 Tooth Anatomy 0.000 title description 38
- 229920002160 Celluloid Polymers 0.000 description 10
- 229910052573 porcelain Inorganic materials 0.000 description 10
- 238000010276 construction Methods 0.000 description 6
- 239000011796 hollow space material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011505 plaster Substances 0.000 description 4
- 210000004283 Incisor Anatomy 0.000 description 2
- 229920000591 gum Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- A61C13/1003—Fastening of artificial teeth to denture palates or the like by embedding in base material
- A61C13/1006—Fastening of artificial teeth to denture palates or the like by embedding in base material characterised by a tooth shape which improves retention
Definitions
- My invention relates to the construction of pinless porcelain teeth, by which I obtain great'strengthand a firm union with the rubber or celluloid base, and at the same time preserve the natural length ot' crown on the lingual as well as labial face, and, therefore, conform in shape with the natural teeth.
- Figure 1 is a sectional view of the superior right central incisor" tooth (plain) divided through the center from the front to the inner face, showing the exterior and interior construction of the same.
- the crown of the tooth at the base or neck is concave, as shown at a, Vso as ⁇ to set closely to the maxillary ridge or, ⁇ gum.
- b is a groove or depression, by which the ru'bber or celluloid firmly embraces and'holds the tooth, the same covering the entire surface of the crown, immediately above or below the base of the upper or lower teeth, respectively.
- This in connection with the hollow space in the crown, slightly enlarged at the bottom, as ati, gives great strength and firm union to the plate.
- Near the bottom of this hollow space is a small orifice or air-duct, connecting with the depression on either side and the surfaces of the teeth, as shown at x.
- Fig. 2 is a sectional view of' the same tooth through the center from side to side, showing the exterior and interior conformation.
- Figs. 3 and 4 show the same construction of tooth with porcelain gums, made singly or in blocks of two or more, Fig. 4 being a section.
- a depression is made at either side of the teeth, as shown at f, and into which the ducts lead.
- the teeth are ground in and fitted to the model, and held in position by a wax plate vides in the center, and said flask illed with plaster. After the plaster has hardened, the iask is separated, the wax removed, and the rubber or celluloid placed in position to take the place of the wax pattern.
- the flask is then pnt into a steam-tight apparatus, and brought up to a high degree of heat, which softens the rubber or Celluloid, and, by means of a screw working a piston or plunger, the two parts of the ask are brought firmly together, and the plate is thus perfectly' formed to the shape of the model and the teeth.
- the concavity within the crown would, when the soften ed material is brought against the mouth thereof, catch air or water, as the case might be, and prevent the rubber, celluloid, or other similar material used from owing in and fill-il ing perfectly the concavities, which are slightly enlarged at the bottom; and by means of the depressions f f on either side of the tooth a firmer union of the teeth with the plate is effected, and also greater strength given to the plate.
- a porcelain tooth having theconcave a, annular depression b, conical'space with enlargement at the bottom, air-duct w, and depressions f at either side of the approximate surfaces, as and for the purposes herein set forth..
Description
`W.v P, HALL.
ARTIFICIAL TEETII.
I\To.178,14f;1.` Patented May 30,1876.
Fly. 2
Fly. a.
Attorneys WITJV'E'SSES ITNITED STATES PATENT OFFICE.
WILLIAM P. HALL, OF PIQUA, OHIO.
IMPROVEMENT IN ARTIFICIAL TEETH.
Specication forming part of Letters Patent No. 178,143, dated May 30, 1876; application l'ed v April 15, 1876.
\ `To all whom it may concern Be it known that I, WM. P. HALL, of Piqua, in the county of Miami, and in the State of Ohio, have invented certain new and useful Improvements in Artificial Teeth; and do hereby declare that the following isa full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters ot' reference marked thereon, making a part of this specification.
My invention relates to the construction of pinless porcelain teeth, by which I obtain great'strengthand a firm union with the rubber or celluloid base, and at the same time preserve the natural length ot' crown on the lingual as well as labial face, and, therefore, conform in shape with the natural teeth.
Figure 1 is a sectional view of the superior right central incisor" tooth (plain) divided through the center from the front to the inner face, showing the exterior and interior construction of the same.
The crown of the tooth at the base or neck is concave, as shown at a, Vso as` to set closely to the maxillary ridge or,^ gum. b is a groove or depression, by which the ru'bber or celluloid firmly embraces and'holds the tooth, the same covering the entire surface of the crown, immediately above or below the base of the upper or lower teeth, respectively. This, in connection with the hollow space in the crown, slightly enlarged at the bottom, as ati, gives great strength and firm union to the plate. Near the bottom of this hollow space is a small orifice or air-duct, connecting with the depression on either side and the surfaces of the teeth, as shown at x.
Fig. 2 is a sectional view of' the same tooth through the center from side to side, showing the exterior and interior conformation. Figs. 3 and 4 show the same construction of tooth with porcelain gums, made singly or in blocks of two or more, Fig. 4 being a section.
A depression is made at either side of the teeth, as shown at f, and into which the ducts lead. The teeth are ground in and fitted to the model, and held in position by a wax plate vides in the center, and said flask illed with plaster. After the plaster has hardened, the iask is separated, the wax removed, and the rubber or celluloid placed in position to take the place of the wax pattern. The flask is then pnt into a steam-tight apparatus, and brought up to a high degree of heat, which softens the rubber or Celluloid, and, by means of a screw working a piston or plunger, the two parts of the ask are brought firmly together, and the plate is thus perfectly' formed to the shape of the model and the teeth.
If there were no air-duets in the teeth, the concavity within the crown would, when the soften ed material is brought against the mouth thereof, catch air or water, as the case might be, and prevent the rubber, celluloid, or other similar material used from owing in and fill-il ing perfectly the concavities, which are slightly enlarged at the bottom; and by means of the depressions f f on either side of the tooth a firmer union of the teeth with the plate is effected, and also greater strength given to the plate.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
l. A porcelain tooth having theconcave a, annular depression b, conical'space with enlargement at the bottom, air-duct w, and depressions f at either side of the approximate surfaces, as and for the purposes herein set forth..
2. The combination of porcelain teeth, of the form herein described, and porcelain gums, single or in blocks, substantially as set forth.
In testimony that I claim the foregoing I have hereunto set my hand this 7th day of March, 1876.
WILLIAM P. HALL.
Witnesses: l
ABRAM: G. VAN DERBILT, JOHN P. JENNINGS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US178143A true US178143A (en) | 1876-05-30 |
Family
ID=2247550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US178143D Expired - Lifetime US178143A (en) | Improvement in artificial teeth |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US178143A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2419084A (en) * | 1940-06-27 | 1947-04-15 | Myerson Simon | Denture |
| US2463549A (en) * | 1948-07-17 | 1949-03-08 | Myerson Simon | Artificial tooth and method of uniting an artificial tooth to a tooth support |
| US4795345A (en) * | 1986-10-31 | 1989-01-03 | G-C Toshi Kogyo Corporation | Artificial teeth |
| US20070101059A1 (en) * | 2004-03-17 | 2007-05-03 | Naotaka Kobayashi | Storage control system and control method for storage control which suppress the amount of power consumed by the storage control system |
-
0
- US US178143D patent/US178143A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2419084A (en) * | 1940-06-27 | 1947-04-15 | Myerson Simon | Denture |
| US2463549A (en) * | 1948-07-17 | 1949-03-08 | Myerson Simon | Artificial tooth and method of uniting an artificial tooth to a tooth support |
| US4795345A (en) * | 1986-10-31 | 1989-01-03 | G-C Toshi Kogyo Corporation | Artificial teeth |
| US20070101059A1 (en) * | 2004-03-17 | 2007-05-03 | Naotaka Kobayashi | Storage control system and control method for storage control which suppress the amount of power consumed by the storage control system |
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