US196991A - Improvement in dental impression-cups - Google Patents
Improvement in dental impression-cups Download PDFInfo
- Publication number
- US196991A US196991A US196991DA US196991A US 196991 A US196991 A US 196991A US 196991D A US196991D A US 196991DA US 196991 A US196991 A US 196991A
- Authority
- US
- United States
- Prior art keywords
- cups
- improvement
- cup
- dental impression
- plaster
- 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
- 239000011505 plaster Substances 0.000 description 12
- 210000001847 Jaw Anatomy 0.000 description 4
- 210000004874 lower jaw Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 210000004873 upper jaw Anatomy 0.000 description 4
- 206010038776 Retching Diseases 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 2
- 239000011507 gypsum plaster Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method 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
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/0006—Impression trays
Definitions
- W25 71 ass as N.FETER5.
- This invention relates to impression-cups for holding the plaster-of-paris while taking impressions of the upper and lower jaws for dental purposes; and consists in making them with flange's all around, and of elastic soft rubber.
- the cup for taking impressions of the upper jaw is provided with a posterior flexible flange, which comes in contact with the roof of the mouth, and prevents the plaster falling on the tongue and gagging the patient, which is a source of much inconvenience to the patient, and trouble to the operator when operating with the cups now in use.
- the cup for taking impressions of the lower jaw is provided with inside return flanges, the
- FIG. 1 is a view showing the inside of a cup for taking impressions of the upper jaw.
- Fig. 2 is a sectional view of the same through the line a: as.
- Fig. 3 is a view showing the inside of a cup for taking impressions of the lower jaw, and
- Fig. 4 is a sectional view of the same through the line 3 y.
- the rubber is molded to the desired form, and then vulcanized to the proper degree by the ordinary process.
- the parts a a forming the handles of the upper and lower cups, are made heavier than the other parts, as shown. Any rigid material may be vulcanized in this part of the cup, if found necessary.
- the sides or walls b b of the upper cup extend all around the base-plate c, the part 12 forming the flexible posterior flange, which prevents the plaster falling on the tongue of the patient, as shown at Figs. 1 and 2.
- the lower cup is made so as to form the channel e for holding the plaster, leaving the open space in the center for the tongue.
- the sides or walls ff of the channel 6 are made at their upper part with inside flanges f f, which extend all around the same. The object of these flanges is to prevent the plaster falling out of the cup when it is inverted, and they, being soft and flexible, do not hurt the gums upon coming in contact with them.
- impression-cups made of soft rubber or other elastic material, and flanged upon all sides, substantially as and for the purposes hereinbefore 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
W. M. REYNOLDS. Dental Impression 011p.
No. 196,991. Patented Nov 13, 1877.
W25 71 ass as N.FETER5. PHOTO-LITMOGRAPNER. vvAsmNmon u L PATENT OFFICE.
WILLIAM M. REYNOLDS, OF NEW YORK, N. Y.
IMPROVEMENT IN DENTAL IMPRESSION-CUPS.
Specification forming part of Letters Patent No. 196,991, dated November 13, 1877; application filed November 4, 1876.
To all whom it may concern:
Be, it known that I, WILLIAM M. REYNOLDS, of the city of New York, State of New York, have invented acertain Improved Impression- Oup for Dental Purpose, of which the following is a specification:
This invention relates to impression-cups for holding the plaster-of-paris while taking impressions of the upper and lower jaws for dental purposes; and consists in making them with flange's all around, and of elastic soft rubber.
The advantages of these elastic cups are:
they may be folded when filled with plaster,
enabling them to be more readily inserted in the mouth, and the edges of the flanges, being soft and flexible, upon coming in contact with the gums, do not hurt or injure them.
Considerable-force has to be sometimes used to get a good impression of the teeth and jaw. The cup for taking impressions of the upper jaw is provided with a posterior flexible flange, which comes in contact with the roof of the mouth, and prevents the plaster falling on the tongue and gagging the patient, which is a source of much inconvenience to the patient, and trouble to the operator when operating with the cups now in use.
The cup for taking impressions of the lower jaw is provided with inside return flanges, the
l object of which is to hold the plaster more selarly, I will refer to the accompanying drawing, forming part of this specification, in which- Figure 1 is a view showing the inside of a cup for taking impressions of the upper jaw. Fig. 2 is a sectional view of the same through the line a: as. Fig. 3 is a view showing the inside of a cup for taking impressions of the lower jaw, and Fig. 4 is a sectional view of the same through the line 3 y.
The rubber is molded to the desired form, and then vulcanized to the proper degree by the ordinary process. The parts a a, forming the handles of the upper and lower cups, are made heavier than the other parts, as shown. Any rigid material may be vulcanized in this part of the cup, if found necessary. The sides or walls b b of the upper cup extend all around the base-plate c, the part 12 forming the flexible posterior flange, which prevents the plaster falling on the tongue of the patient, as shown at Figs. 1 and 2.
The lower cup is made so as to form the channel e for holding the plaster, leaving the open space in the center for the tongue. The sides or walls ff of the channel 6 are made at their upper part with inside flanges f f, which extend all around the same. The object of these flanges is to prevent the plaster falling out of the cup when it is inverted, and they, being soft and flexible, do not hurt the gums upon coming in contact with them.
I claim- As a new article of manufacture, impression-cups made of soft rubber or other elastic material, and flanged upon all sides, substantially as and for the purposes hereinbefore set forth.
WM. M. REYNOLDS.
Witnesses:
E. H. J oHNsoN, GEO. P. BYRNE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US196991A true US196991A (en) | 1877-11-13 |
Family
ID=2266397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US196991D Expired - Lifetime US196991A (en) | Improvement in dental impression-cups |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US196991A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2708931A (en) * | 1953-02-19 | 1955-05-24 | Jack J Freedland | Shock-therapy mouth guard |
| US2718126A (en) * | 1952-10-09 | 1955-09-20 | Sam W Ball | Ice mold for dental use |
-
0
- US US196991D patent/US196991A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2718126A (en) * | 1952-10-09 | 1955-09-20 | Sam W Ball | Ice mold for dental use |
| US2708931A (en) * | 1953-02-19 | 1955-05-24 | Jack J Freedland | Shock-therapy mouth guard |
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