DE919782C - Dental cements - Google Patents
Dental cementsInfo
- Publication number
- DE919782C DE919782C DESCH6955A DESC006955A DE919782C DE 919782 C DE919782 C DE 919782C DE SCH6955 A DESCH6955 A DE SCH6955A DE SC006955 A DESC006955 A DE SC006955A DE 919782 C DE919782 C DE 919782C
- Authority
- DE
- Germany
- Prior art keywords
- dental cements
- active
- cement powder
- properties
- largely
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/849—Preparations for artificial teeth, for filling teeth or for capping teeth comprising inorganic cements
- A61K6/853—Silicates
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Plastic & Reconstructive 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
Zahnzemente Bei der Herstellung von Zahnzementen, aufgeschlossenen, mit Phosphorsäure abbindefähigen Aluminiumsilikaten, spielen neben den üblich geforderten Eigenschaften, wie Härte, chemische und mechanische Resistenz, Dichte, Schrumpfung usw., insbesondere zwei Eigenschaften eine besondere Rolle: der abgebundene Füllkörper soll weitgehend transparent, also zahnähnlich sein und sich der lebenden Pulpa gegenüber möglichst neutral verhalten.Dental cements In the production of dental cements, open-minded, Aluminum silicates that can be bonded with phosphoric acid play alongside the usual requirements Properties such as hardness, chemical and mechanical resistance, density, shrinkage etc., in particular two properties play a special role: the set filler body should be largely transparent, i.e. tooth-like and opposite the living pulp Behave as neutrally as possible.
Wie bekannt, schließen aber gerade diese beiden Eigenschaften sich gegenseitig weitgehend aus, weil eine hochentwickelte Transparenz einen spezifisch sauren Füllkörper voraussetzt, der aber gerade dadurch die Möglichkeit erhält, auf lebendes Gewebe schädigend einzuwirken. As is known, however, it is precisely these two properties that are mutually exclusive largely mutually exclusive, because a highly developed transparency is specific to you acidic filler, which is precisely what gives it the opportunity to to have a damaging effect on living tissue.
Erfindungsgemäß soll ein Verfahren beschrieben werden, das die Herstellung von Zahnzementen gestattet, bei denen beide Eigenschaften gleich gut entwickelt sind, wobei der saure Charakter des Füllkörpers wohl eine hohe Transparenz ermöglicht, erfindungsgemäß aber die pulpenschädigende Nebenwirkung ausgeschlossen werden soll. According to the invention, a method is to be described, which the production permitted by dental cements in which both properties develop equally well are, whereby the acidic character of the packing probably allows a high transparency, according to the invention, however, the pulp-damaging side effect is to be excluded.
Es hat sich nämlich überraschenderweise gezeigt, daß bei Anwesenheit von aktiv wirkenden Substanzen, wie aktiver Kieselsäure oder aktiven Aluminiumhydrosilikaten, der Füllkörper sich weitgehend neutral gegenüber der lebenden Pulpa verhält. Nun sind Kieselsäure und Aluminiumsilikat, die sich durch Zersetzung des Zementpulvers an sich bilden, bereits wesentliche Bestandteile des abgebundenen Füllkörpers. Erfindungsgemäß werden diese Verbindungen in aktivem Zustand gebildet, wenn man die Zusammensetzung von Zementpulver und Anrührflüssigkeit in der Weise regelt, daß im abgebundenen Füllkörper auf I Mol basischer Metalloxyde mindestens 2 Mol saurer Metalloxyde entfaileii. It has been shown, surprisingly, that when present active substances such as active silica or active aluminum hydrosilicates, the filling body is largely neutral to the living pulp. so are silica and aluminum silicate, which are produced by the decomposition of cement powder form per se, already essential components of the set filler body. According to the invention These compounds are formed in the active state when one considers the composition of cement powder and mixing liquid regulates in such a way that in the set Packing on 1 mol of basic metal oxides contains at least 2 mol of acidic metal oxides.
Andererseits hat es sich aber auch gezeigt, daß es schon genügt, diese beiden aktiven Verbindungen dem Zementpulver von vornherein zuzusetzen, wobei sich je nach der Beschaffenheit des Zementpulvers ein Zusatz von etwa I bis SO/o aktiven Kieselsäuregels bzw. 5 bis 10 O/o von aktivem AlumLiniumhvdrosilikat, beide pulverisiert und eisenfrei, als zweckmäßig erwiesen hat. On the other hand, it has also been shown that it is sufficient to add these two active compounds to the cement powder from the outset, whereby Depending on the nature of the cement powder, an addition of about 1 to 50% active silica gel or 5 to 10% of active aluminum linium hydrosilicate, both pulverized and iron-free, has proven useful.
Die Wirkung dieser aktiven Zusätze beruht weitgehend darauf, daß dieselben die Abgabe sauer reagierender Lösungen durch Adsorption praktisch vermeiden. The effect of these active additives is largely based on the fact that they practically avoid the release of acidic solutions through adsorption.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH6955A DE919782C (en) | 1951-06-26 | 1951-06-26 | Dental cements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH6955A DE919782C (en) | 1951-06-26 | 1951-06-26 | Dental cements |
Publications (1)
Publication Number | Publication Date |
---|---|
DE919782C true DE919782C (en) | 1954-11-04 |
Family
ID=7425133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DESCH6955A Expired DE919782C (en) | 1951-06-26 | 1951-06-26 | Dental cements |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE919782C (en) |
-
1951
- 1951-06-26 DE DESCH6955A patent/DE919782C/en not_active Expired
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