US120509A - Improvement in artificial teeth - Google Patents
Improvement in artificial teeth Download PDFInfo
- Publication number
- US120509A US120509A US120509DA US120509A US 120509 A US120509 A US 120509A US 120509D A US120509D A US 120509DA US 120509 A US120509 A US 120509A
- Authority
- US
- United States
- Prior art keywords
- base
- teeth
- gum
- improvement
- enamel
- 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
- 210000003298 Dental Enamel Anatomy 0.000 description 16
- 239000000463 material Substances 0.000 description 16
- 229920000591 gum Polymers 0.000 description 12
- 239000000203 mixture Substances 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 229920001206 natural gum Polymers 0.000 description 6
- 229910052573 porcelain Inorganic materials 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 241000219495 Betulaceae Species 0.000 description 4
- RCJVRSBWZCNNQT-UHFFFAOYSA-N Dichlorine monoxide Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- DSSYKIVIOFKYAU-UHFFFAOYSA-N Camphor Chemical compound C1CC2(C)C(=O)CC1C2(C)C DSSYKIVIOFKYAU-UHFFFAOYSA-N 0.000 description 2
- 229960000846 Camphor Drugs 0.000 description 2
- 229920002160 Celluloid Polymers 0.000 description 2
- 241000723346 Cinnamomum camphora Species 0.000 description 2
- 239000000899 Gutta-Percha Substances 0.000 description 2
- 229920000588 Gutta-percha Polymers 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 2
- 240000000342 Palaquium gutta Species 0.000 description 2
- 241000836034 Westindia Species 0.000 description 2
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2S,3R,4S,5R,6R)-2-[(2R,3R,4S,5R,6S)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2R,3R,4S,5R,6S)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 2
- 229930007890 camphor Natural products 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000004534 enameling Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000266 injurious Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920001220 nitrocellulos Polymers 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
- 230000035943 smell Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
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
Definitions
- My invention relates to artificial dentures, having porcelain teeth and non-metallic composition bases; and my improvements consist in the use of a peculiar material for the base, whereby the necessity of employing heat in the manufacture of the articles is avoided, and in the application to the exposed parts of the base of an enamel which imparts to the same a gum color, and renders the use of gum-teeth unnecessary.
- I employ as a base a material which can be molded while cold, the material being oxychloride of zinc.
- the teeth are mounted on wax or gutta-percha in the usual manner, and are embedded in plaster formed into a two-part mold.
- the wax is removed, and a composition of oxide and chloride of zinc combined, in such proportions as to form a plastic mass, is inserted in the place of the wax.
- the two parts of the mold are then pressed together, and retained until the material has hardened.
- the plate or base may be backed by a thin metallic or other plate, or it may be coated with a suitable enamel to prevent any disagreeable or injurious efi'ect from direct contact of the base with the membrane of the mouth.
- the color of the base differs from that of the natural gum
- an enamel consisting generally of a solution of gun-cotton in ether, or its equivalent, and earmine or other suitable coloringanatter
- the base prior to the applica' tion of the enamel, being coated with a solution of gum sandarae in alcohol and ether.
- An artificial denture consisting of porcelain teeth mounted on a base, composed in whole or in part of oxychloride of zinc, as set forth.
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
UNITED STATES PATENT OFFICE.
THOMAS ALDER DICKSON FORSTER, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN ARTIFICIAL TEETH.
Specification forming part of Letters Patent No. 120,509, dated October 31, 1871.
To all whom it may concern:
Be it known that I, THOMAS ALDER DIOKSON FORSTER, now of Philadelphia, county of Philadelphia, State of Pennsylvania, but formerly of St. Georges, Bermuda, West India Islands, have invented certain new and useful Improvements in Artificial Dentures, of which the following is a specification:
My invention relates to artificial dentures, having porcelain teeth and non-metallic composition bases; and my improvements consist in the use of a peculiar material for the base, whereby the necessity of employing heat in the manufacture of the articles is avoided, and in the application to the exposed parts of the base of an enamel which imparts to the same a gum color, and renders the use of gum-teeth unnecessary.
Artificial dentures consisting of porcelain teeth and non-metallic composition bases are objectionable for two reasons: First, in applying or securing the base material, while plastic, to the teeth, it is necessary to subject the com position to pressure between molds and to main tain the whole in a heated state for the purpose of preserving the plasticity of, or to soften or to harden, the material, this heating involving manipulation, which is always troublesome and in many instances expensive and dangerous. Second, owing to the nature of the substances and compositions hitherto employed, it has been difficult to impart to them a color similar to that of the natural gum, rendering it necessary to use what are termed gum-teeththat is, teeth with projections at the top, formed and colored to resemble the natural gum. These teeth must be ground at the side edges and fitted together, are difficult to secure to the base, expensive, and, owing to the numerous joints, are otherwise objectionable.
I employ as a base a material which can be molded while cold, the material being oxychloride of zinc. The teeth are mounted on wax or gutta-percha in the usual manner, and are embedded in plaster formed into a two-part mold. The wax is removed, and a composition of oxide and chloride of zinc combined, in such proportions as to form a plastic mass, is inserted in the place of the wax. The two parts of the mold are then pressed together, and retained until the material has hardened.
In some instances other substances, as finelyground silex, may be added to the base to give body to the same, and the plate or base may be backed by a thin metallic or other plate, or it may be coated with a suitable enamel to prevent any disagreeable or injurious efi'ect from direct contact of the base with the membrane of the mouth.
As the color of the base differs from that of the natural gum, I apply to the exposed part of the base, above the teeth, an enamel, consisting generally of a solution of gun-cotton in ether, or its equivalent, and earmine or other suitable coloringanatter, the base, prior to the applica' tion of the enamel, being coated with a solution of gum sandarae in alcohol and ether. By thus enameling the exposed part of the base, the necessity of employing gum teeth is avoided, single plain teeth without gums being used, the fangs being imbedded in the base. The same effect with like advantage may be obtained by the application of enamel to the exposed parts of rubber, celluloid, or other similar bases, it only being necessary to employ as a liquid vehicle for the coloring material a solvent of the material composing the base.
To prevent the shrinking of the enamel in drying, it is well to add to the solution a solution of sandarae, eopal, or other suitable gum.
When a collodion base is employed, it is well to coat the whole surface with enamel, as it prevents the disagreeable smell and taste arising from the presence of camphor, and obviates the necessity of polishing.
I claim as my invention- 1. An artificial denture, consisting of porcelain teeth mounted on a base, composed in whole or in part of oxychloride of zinc, as set forth.
2. An artificial denture, in which single plain teeth are imbeddcd in a base consisting of a composition of the character described. and which surrounds the fangs and forms the gum, as set forth.
3. An artificial denture, in which the gum or surface of the base above the teeth is coated with enamel, applied as specified.
In testimony whereof I have signed my name to this specification in the presence of two sub scribing witnesses.
T. A. D. FORSTER. Witnesses:
CHARLES E. FORSTER,
JOHN K. RUPER'rUs. (46)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US120509A true US120509A (en) | 1871-10-31 |
Family
ID=2189954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US120509D Expired - Lifetime US120509A (en) | Improvement in artificial teeth |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US120509A (en) |
-
0
- US US120509D patent/US120509A/en not_active Expired - Lifetime
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