DE2935810A1 - Dental reconstitution compsns. based on organic resin - with radio-opaque filler contg. thorium and/or tantalum oxide - Google Patents
Dental reconstitution compsns. based on organic resin - with radio-opaque filler contg. thorium and/or tantalum oxideInfo
- Publication number
- DE2935810A1 DE2935810A1 DE19792935810 DE2935810A DE2935810A1 DE 2935810 A1 DE2935810 A1 DE 2935810A1 DE 19792935810 DE19792935810 DE 19792935810 DE 2935810 A DE2935810 A DE 2935810A DE 2935810 A1 DE2935810 A1 DE 2935810A1
- Authority
- DE
- Germany
- Prior art keywords
- compsns
- radio
- filler
- organic resin
- tho2
- 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.)
- Withdrawn
Links
- 239000000945 fillers Substances 0.000 title abstract 6
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound 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O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 title abstract 4
- 239000011347 resins Substances 0.000 title abstract 2
- 229920005989 resins Polymers 0.000 title abstract 2
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound 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[O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 title 1
- 229910001936 tantalum oxides Inorganic materials 0.000 title 1
- 229910003452 thorium oxides Inorganic materials 0.000 title 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N Tantalum pentoxide Chemical compound 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O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 abstract 3
- 229910004369 ThO2 Inorganic materials 0.000 abstract 3
- 229910001937 tantalum pentoxide Inorganic materials 0.000 abstract 3
- 239000011230 binding agents Substances 0.000 abstract 2
- 229920000178 Acrylic resin Polymers 0.000 abstract 1
- 239000004925 Acrylic resins Substances 0.000 abstract 1
- 239000006096 absorbing agents Substances 0.000 abstract 1
- 239000000654 additives Substances 0.000 abstract 1
- 239000000919 ceramics Substances 0.000 abstract 1
- 239000011256 inorganic fillers Substances 0.000 abstract 1
- 229910003475 inorganic fillers Inorganic materials 0.000 abstract 1
- 238000002386 leaching Methods 0.000 abstract 1
- 230000003287 optical Effects 0.000 abstract 1
- 238000002601 radiography Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound 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O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 229910001885 silicon dioxide Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/884—Preparations for artificial teeth, for filling teeth or for capping teeth comprising natural or synthetic resins
- A61K6/887—Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
Abstract
Dental reconstitution compsns. (fillings, inlays, etc.) comprise a mixt. of a polymerisable liq. organic resin binder and a finely divided radio-opaque inert inorganic filler. The improvement comprises using ThO2 and/or Ta2O5 in an amt. of 3-10 wt.% (based on total filler) as the only X-ray absorber in the filler. The compsns. combine a high degree of radio-opacity (necessary for dental radiography) with good mechanical and optical properties. Leaching problems associated with the use of Ba-contg. fillers are avoided. The filler pref. contains 3-5 wt.% ThO2, or 3-5 wt.% ThO2 and 1-7 wt.% Ta2O5 or 4-10 wt.% Ta2O5, the balance being a conventional silica or ceramic filler. Standard binders (esp. acrylic resins) and other additives can be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792935810 DE2935810A1 (en) | 1979-09-05 | 1979-09-05 | Dental reconstitution compsns. based on organic resin - with radio-opaque filler contg. thorium and/or tantalum oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792935810 DE2935810A1 (en) | 1979-09-05 | 1979-09-05 | Dental reconstitution compsns. based on organic resin - with radio-opaque filler contg. thorium and/or tantalum oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2935810A1 true DE2935810A1 (en) | 1981-04-02 |
Family
ID=6080090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792935810 Withdrawn DE2935810A1 (en) | 1979-09-05 | 1979-09-05 | Dental reconstitution compsns. based on organic resin - with radio-opaque filler contg. thorium and/or tantalum oxide |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2935810A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0189540A2 (en) * | 1985-01-26 | 1986-08-06 | Etablissement Dentaire IVOCLAR | X-ray opaque dental material |
| AT401227B (en) * | 1991-07-09 | 1996-07-25 | Hat Entwicklungs Gmbh | Tooth regulation device with a ceramic tooth adapter |
| WO2019211420A1 (en) | 2018-05-04 | 2019-11-07 | Merz Dental Gmbh | Curable radiopaque substance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE676302C (en) * | 1937-10-09 | 1939-06-01 | Dr Friedrich Schoenbeck | Zahnwurzelfuellmittel |
| DE1102975B (en) * | 1955-12-02 | 1961-03-23 | Kulzer & Co Gmbh | Means for preparing fill masses for Zahnwurzelkanaele |
| US3925895A (en) * | 1972-07-06 | 1975-12-16 | Nat Patent Dev Corp | Hydrophilic root canal filling material |
| US4017454A (en) * | 1973-09-21 | 1977-04-12 | Jenaer Glaswerk Schott & Gen. | Glass ceramic as filler in polymerizable dental filling compositions |
-
1979
- 1979-09-05 DE DE19792935810 patent/DE2935810A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE676302C (en) * | 1937-10-09 | 1939-06-01 | Dr Friedrich Schoenbeck | Zahnwurzelfuellmittel |
| DE1102975B (en) * | 1955-12-02 | 1961-03-23 | Kulzer & Co Gmbh | Means for preparing fill masses for Zahnwurzelkanaele |
| US3925895A (en) * | 1972-07-06 | 1975-12-16 | Nat Patent Dev Corp | Hydrophilic root canal filling material |
| US4017454A (en) * | 1973-09-21 | 1977-04-12 | Jenaer Glaswerk Schott & Gen. | Glass ceramic as filler in polymerizable dental filling compositions |
Non-Patent Citations (3)
| Title |
|---|
| KIRK-OTHMER: Encyclopedia of Chemical techno- gy, 2. Ed., Vol. 17, S.130, 1968 * |
| ULLMANN: Encyklopädie der technischen Chemie, 4. Aufl., Bd. 10, S.10 u. 11, 1975 * |
| ULLMANN: Encyklopädie der technischen Chemie, 4.Aufl., Bd.10, Verlag Chemie Weinheim, 1975, S.85 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0189540A2 (en) * | 1985-01-26 | 1986-08-06 | Etablissement Dentaire IVOCLAR | X-ray opaque dental material |
| EP0189540A3 (en) * | 1985-01-26 | 1988-01-13 | Etablissement Dentaire Ivoclar | X-ray opaque dental material |
| AT401227B (en) * | 1991-07-09 | 1996-07-25 | Hat Entwicklungs Gmbh | Tooth regulation device with a ceramic tooth adapter |
| WO2019211420A1 (en) | 2018-05-04 | 2019-11-07 | Merz Dental Gmbh | Curable radiopaque substance |
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|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8139 | Disposal/non-payment of the annual fee |