US2816040A - Dental impression material - Google Patents
Dental impression material Download PDFInfo
- Publication number
- US2816040A US2816040A US396778A US39677853A US2816040A US 2816040 A US2816040 A US 2816040A US 396778 A US396778 A US 396778A US 39677853 A US39677853 A US 39677853A US 2816040 A US2816040 A US 2816040A
- Authority
- US
- United States
- Prior art keywords
- water
- composition
- dibasic lead
- impression material
- gel
- 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
- 239000002978 dental impression material Substances 0.000 title description 3
- 239000000203 mixture Substances 0.000 claims description 26
- UMKARVFXJJITLN-UHFFFAOYSA-N lead;phosphorous acid Chemical compound [Pb].OP(O)O UMKARVFXJJITLN-UHFFFAOYSA-N 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- 229940105329 carboxymethylcellulose Drugs 0.000 claims description 3
- 239000001814 pectin Substances 0.000 claims description 3
- 229920001277 pectin Polymers 0.000 claims description 3
- 235000010443 alginic acid Nutrition 0.000 description 13
- 229920000615 alginic acid Polymers 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 10
- 229940072056 alginate Drugs 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000005909 Kieselgur Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- 229910000318 alkali metal phosphate Inorganic materials 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 5
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- 150000004760 silicates Chemical class 0.000 description 3
- 239000000661 sodium alginate Substances 0.000 description 3
- 235000010413 sodium alginate Nutrition 0.000 description 3
- 229940005550 sodium alginate Drugs 0.000 description 3
- OCUCCJIRFHNWBP-IYEMJOQQSA-L Copper gluconate Chemical class [Cu+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O OCUCCJIRFHNWBP-IYEMJOQQSA-L 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 235000011180 diphosphates Nutrition 0.000 description 2
- 235000010987 pectin Nutrition 0.000 description 2
- 229940048084 pyrophosphate Drugs 0.000 description 2
- 239000003340 retarding agent Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- -1 silicas Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-M D-gluconate Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O RGHNJXZEOKUKBD-SQOUGZDYSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920002230 Pectic acid Polymers 0.000 description 1
- 239000000783 alginic acid Substances 0.000 description 1
- 229960001126 alginic acid Drugs 0.000 description 1
- 150000004781 alginic acids Chemical class 0.000 description 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 1
- 229910052936 alkali metal sulfate Inorganic materials 0.000 description 1
- AEMOLEFTQBMNLQ-BKBMJHBISA-N alpha-D-galacturonic acid Chemical class O[C@H]1O[C@H](C(O)=O)[C@H](O)[C@H](O)[C@H]1O AEMOLEFTQBMNLQ-BKBMJHBISA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229940050410 gluconate Drugs 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/90—Compositions for taking dental impressions
Definitions
- the invention relates to impression materials, particularly elastic dental impression materials.
- compositions are known containing a gel-forming agent such as a soluble alginate together with other substances which in the presence of water will precipitate and solidify the gel to a consistency useful for dental purposes.
- the present invention relates to an improved composition and is based on the discovery of a new precipitating agent, dibasic lead phosphiae, and a new association of other ingredients cooperating therewith and with the gel-forming agent to form an elastic impression material having desirable properties for dental purposes.
- the dental impression composition of this invention comprises a gel-forming agent, usually a soluble alginate, and dibasic lead phosphite which functions as a setting or congelation agent.
- the composition of this invention preferably includes a retarding agent which gives a predetermined control over the congelation or setting time, an inert filler and desirably also one or more other ingredients referred to as modifiers which impart desirable characteristics to the composition for its intended purpose.
- the composition of this invention is useful in the making of full dentures, partial dentures, inlays, bridges and other devices for dental purposes and it provides a medium for taking impressions of the dental and oral tissues.
- the composition is mixed with water, at the time of use, to a thick yet semi-fluid mixture, which is placed in a suitable tray. This loaded tray is carried to the mouth and is seated upon or over the object or objects and in several minutes time solidifies to an elastic gel.
- the gel is elastic so it can be pulled over teeth or hard undercut structures, as well as the softer tissues in situ, and produce a negative of the structure with complete detail.
- the gel is used as a mold, without the use of fixing solutions of any kind, for casting stone, investments or plasters, and upon their hardening they form a complete accurate duplication of the master medium.
- the gel-forming agent used in the impression compositions of this invention is of the class which includes the water-soluble salts of alginic acid, such as the alkali metal alginates, Water-soluble pectate salts and other pectins, alkali metal carboxy methyl cellulose, and other equivalent materials.
- Retarding agents used in the compositions of this invention are of the class including soluble alkali metal phosphates or silicates alone or in conjunction with such salts as alkali metal sulfates or chlorides.
- Suitable fillers are diatomaceous earth, silicas, resins, or other insoluble materails such as heavy metal phosphates, carbonates or silicates.
- Modifiers include fluosilicates, fluozirconates and gluconates.
- fluosilicates include fluozirconates and gluconates.
- impression materials whose compositions render them suitable as dental impression materials:
- Example '1 I weight in grams Sodium alginate-.. 2.0 Dibasic lead phosphite... a 'SLO Tetra sodium ,pyrophosphate n nfi; 05 Potassium silicofluo'ride 1.5 Diatomaceous earth 11.0
- Example 2 Sodium alginate 2.0 Dibasic lead phosphite 5.0 Tetra sodium pyrophosphate 0.1 Glucono delta-lactnne 0.3 Diatomaceous earth 11.0
- Example 3 Sodium alginate 2.0 Dibasic lead phosphite 5.0 Tetra sodium pyrophosphate 0.2 Potassium fluozircnnate 0.5 Diatomaceous earth 11.0
- compositions of the above examples can be prepared by blending the dry ingredients in a mill, and the mixture thus obtained may be packaged and stored with good shelf life over extended periods of time.
- Example 1 when mixed with 60 cc. of water at 70 F. allows a working time of 1% minutes and has a setting time of 2 /2 minutes.
- Example 2 under the same conditions has a working time of 1% minutes and a setting time of 2 minutes.
- a composition consisting essentially of a gel-forming agent of the class consisting of water-soluble alginates, pectates, pectins and carboxy methyl cellulose and dibasic lead phosphite.
- composition as defined in claim 1 containing also a retarder of the class consisting of alkali metal phosphates and silicates, a modifier of the class consisting of fluosilicates and gluconates, and a filler in amount at least about 50%.
- a composition capable of forming with water an elastic impression material consisting essentially of a water-soluble alginate, dibasic lead phosphite, in amount greater than said alginate, and a filler in amount at least about 50%.
- a composition capable of forming with water an elastic impression material consisting essentially of a water-soluble alginate, dibasic lead phosphite, an alkali metal phosphate, potassium silicofiuoride and diatomaceous earth.
- a composition capable of forming with water an elastic impression material consisting essentially of a water-soluble alginate, dibasic lead phosphite, an alkali metal phosphate, a gluconate, and diatomaceous earth.
- a composition capable of forming with water an elastic impression material consisting essentially of about 10% of a water-soluble alginate, about 25% dibasic lead phosphite, an alkali metal phosphate, potassium silicofluoride and at least about 50% diatomaceous earth.
- a composition capable of forming with water an elastic impression material consisting essentially of about 10% of a water-soluble alginate, about 25% dibasic lead phosphite, at least about 50% filler and a fiuozirconate.
- a 'dental impression composition consisting essentially of about 10% sodium alginate, about 25% dibasic'lead phosphite, at least about 50% filler, an alkali metal phosphate, and potassium silicofluoride.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (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
2,816,040 JDENTAL IMPRESS'ION MATERIAL 9 Alexander :Raibchuk, .Detroit,..Mich., sassignor to ffKi-r Manufacturing Company, Detroit, Mich., a corporation of Michigan No Drawing. Application December 7, 1953, Serial No. 396,778
10 Claims. (Cl. 106-384) The invention relates to impression materials, particularly elastic dental impression materials. In the present state of the art of impression materials, compositions are known containing a gel-forming agent such as a soluble alginate together with other substances which in the presence of water will precipitate and solidify the gel to a consistency useful for dental purposes.
The present invention relates to an improved composition and is based on the discovery of a new precipitating agent, dibasic lead phosphiae, and a new association of other ingredients cooperating therewith and with the gel-forming agent to form an elastic impression material having desirable properties for dental purposes.
The dental impression composition of this invention comprises a gel-forming agent, usually a soluble alginate, and dibasic lead phosphite which functions as a setting or congelation agent. In addition to these two principal ingredients, the composition of this invention preferably includes a retarding agent which gives a predetermined control over the congelation or setting time, an inert filler and desirably also one or more other ingredients referred to as modifiers which impart desirable characteristics to the composition for its intended purpose.
The composition of this invention is useful in the making of full dentures, partial dentures, inlays, bridges and other devices for dental purposes and it provides a medium for taking impressions of the dental and oral tissues. The composition is mixed with water, at the time of use, to a thick yet semi-fluid mixture, which is placed in a suitable tray. This loaded tray is carried to the mouth and is seated upon or over the object or objects and in several minutes time solidifies to an elastic gel.
The gel is elastic so it can be pulled over teeth or hard undercut structures, as well as the softer tissues in situ, and produce a negative of the structure with complete detail. The gel is used as a mold, without the use of fixing solutions of any kind, for casting stone, investments or plasters, and upon their hardening they form a complete accurate duplication of the master medium.
The gel-forming agent used in the impression compositions of this invention is of the class which includes the water-soluble salts of alginic acid, such as the alkali metal alginates, Water-soluble pectate salts and other pectins, alkali metal carboxy methyl cellulose, and other equivalent materials.
Retarding agents used in the compositions of this invention are of the class including soluble alkali metal phosphates or silicates alone or in conjunction with such salts as alkali metal sulfates or chlorides. Suitable fillers are diatomaceous earth, silicas, resins, or other insoluble materails such as heavy metal phosphates, carbonates or silicates.
Modifiers include fluosilicates, fluozirconates and gluconates. The following are given as examples of impression materials whose compositions render them suitable as dental impression materials:
2,816,040 Patented Dec. 10, .1957
ice
Example '1 I weight in grams Sodium alginate-.. 2.0 Dibasic lead phosphite... a 'SLO Tetra sodium ,pyrophosphate n nfi; 05 Potassium silicofluo'ride 1.5 Diatomaceous earth 11.0
Example 2 Sodium alginate 2.0 Dibasic lead phosphite 5.0 Tetra sodium pyrophosphate 0.1 Glucono delta-lactnne 0.3 Diatomaceous earth 11.0
Example 3 Sodium alginate 2.0 Dibasic lead phosphite 5.0 Tetra sodium pyrophosphate 0.2 Potassium fluozircnnate 0.5 Diatomaceous earth 11.0
The compositions of the above examples can be prepared by blending the dry ingredients in a mill, and the mixture thus obtained may be packaged and stored with good shelf life over extended periods of time.
The composition of Example 1 when mixed with 60 cc. of water at 70 F. allows a working time of 1% minutes and has a setting time of 2 /2 minutes. Example 2 under the same conditions has a working time of 1% minutes and a setting time of 2 minutes.
It is to be understood that while the examples given include the best mode contemplated of carrying out the invention, the specific mixtures of ingredients in the examples can be modified in accordance with the general teachings without departing from the invention.
What I claim as my invention is:
1. A composition consisting essentially of a gel-forming agent of the class consisting of water-soluble alginates, pectates, pectins and carboxy methyl cellulose and dibasic lead phosphite.
2. A composition as defined in claim 1 containing also a retarder of the class consisting of alkali metal phosphates and silicates, a modifier of the class consisting of fluosilicates and gluconates, and a filler in amount at least about 50%.
3. A composition capable of forming with water an elastic impression material consisting essentially of a water-soluble alginate, dibasic lead phosphite, in amount greater than said alginate, and a filler in amount at least about 50%.
4. A composition capable of forming with water an elastic impression material consisting essentially of a water-soluble alginate, dibasic lead phosphite, an alkali metal phosphate, potassium silicofiuoride and diatomaceous earth.
5. A composition capable of forming with water an elastic impression material consisting essentially of a water-soluble alginate, dibasic lead phosphite, an alkali metal phosphate, a gluconate, and diatomaceous earth.
6. A composition capable of forming with water an elastic impression material consisting essentially of about 10% of a water-soluble alginate, about 25% dibasic lead phosphite, an alkali metal phosphate, potassium silicofluoride and at least about 50% diatomaceous earth.
7. A composition capable of forming with water an elastic impression material consisting essentially of about 10% of a water-soluble alginate, about 25% dibasic lead phosphite, at least about 50% filler and a fiuozirconate.
8. A mold formed of the reaction product of water with a composition consisting essentially of a water-soluble alginate, at least about 50% diatomaceous earth and about 25% dibasic lead phosphite.
9. A mold formed of the reaction product of water with a composition consisting essentially of a water-soluble alginate, at least about 50% diatomaceous earth, an alkali metal pyrophosphate, potassium silicofluoride and about 25%- dibasic lead phos'phite.
10; A 'dental impression composition consisting essentially of about 10% sodium alginate, about 25% dibasic'lead phosphite, at least about 50% filler, an alkali metal phosphate, and potassium silicofluoride.
References Cited in the file of this patent UNITED STATES PATENTS Wilson May 22, 1945 Evans et a1. July 31, 1945 Noyes July 29, 1947 Steiner May 18, 1948 Meyer Dec. 30, 1952 Noyes et a1. Feb. 10, 1953 Fink Sept. 15, 1953 Noyes et al May 11, 1954
Claims (1)
1. A COMPOSITION CONSISTING ESSENTIALLY OF A GEL-FORMING AGENT OF THE CLASS CONSISTING OF WATER-SOLUBLE AIGINATES; PECTATES, PECTINS AND CARBOXY METHYL CELLULOSE AND DIBASIC LEAD PHOSPHITE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US396778A US2816040A (en) | 1953-12-07 | 1953-12-07 | Dental impression material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US396778A US2816040A (en) | 1953-12-07 | 1953-12-07 | Dental impression material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2816040A true US2816040A (en) | 1957-12-10 |
Family
ID=23568567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US396778A Expired - Lifetime US2816040A (en) | 1953-12-07 | 1953-12-07 | Dental impression material |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2816040A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3207161A (en) * | 1961-05-22 | 1965-09-21 | Dcd Res Corp | Ionization dental system |
| WO1982000650A1 (en) * | 1980-08-26 | 1982-03-04 | Int Inc Dentsply | Non-dusting and fast-wetting impression material and method of preparing same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2376467A (en) * | 1942-02-18 | 1945-05-22 | Fruit Growers Exchange Ca | Manufacture of metallic compounds |
| US2380739A (en) * | 1941-04-11 | 1945-07-31 | Gen Mills Inc | Process of producing pectinous gels and composition |
| US2424895A (en) * | 1942-10-30 | 1947-07-29 | Stanley E Noyes | Dental impression composition |
| US2441729A (en) * | 1943-12-08 | 1948-05-18 | Kelco Co | Algin gel-forming compositions |
| US2623808A (en) * | 1951-06-02 | 1952-12-30 | Surgident Ltd | Dental impression compositions |
| US2628153A (en) * | 1952-04-07 | 1953-02-10 | Dental Perfection Company | Fluoride-containing impression materials |
| US2652312A (en) * | 1952-12-23 | 1953-09-15 | Plastodent Inc | Dental impression material |
| US2678280A (en) * | 1952-03-21 | 1954-05-11 | Dental Perfection Company | Gel point indicating impression materials |
-
1953
- 1953-12-07 US US396778A patent/US2816040A/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2380739A (en) * | 1941-04-11 | 1945-07-31 | Gen Mills Inc | Process of producing pectinous gels and composition |
| US2376467A (en) * | 1942-02-18 | 1945-05-22 | Fruit Growers Exchange Ca | Manufacture of metallic compounds |
| US2424895A (en) * | 1942-10-30 | 1947-07-29 | Stanley E Noyes | Dental impression composition |
| US2441729A (en) * | 1943-12-08 | 1948-05-18 | Kelco Co | Algin gel-forming compositions |
| US2623808A (en) * | 1951-06-02 | 1952-12-30 | Surgident Ltd | Dental impression compositions |
| US2678280A (en) * | 1952-03-21 | 1954-05-11 | Dental Perfection Company | Gel point indicating impression materials |
| US2628153A (en) * | 1952-04-07 | 1953-02-10 | Dental Perfection Company | Fluoride-containing impression materials |
| US2652312A (en) * | 1952-12-23 | 1953-09-15 | Plastodent Inc | Dental impression material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3207161A (en) * | 1961-05-22 | 1965-09-21 | Dcd Res Corp | Ionization dental system |
| WO1982000650A1 (en) * | 1980-08-26 | 1982-03-04 | Int Inc Dentsply | Non-dusting and fast-wetting impression material and method of preparing same |
| US4394172A (en) * | 1980-08-26 | 1983-07-19 | Dentsply Research & Development Corp. | Non-dusting and fast-wetting impression material and method of preparing same |
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