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Formation of Dental Silicate Cement
Nature, 1970THE setting of dental silicate cement, a material widely used as an anterior tooth filling1, is generally attributed to the formation of silica gel2. Its potentially high strength (< 3,000 kg/cm2) compared with known silica gel cements3 (150–270 kg/cm2) is, however, at variance with this view.
A D, Wilson +5 more
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Solubility of a Silicate Cement
Journal of Dental Research, 1970Samples of a silicate cement were soaked in different environments for varying lengths of time. The resulting solutions were analyzed for Na, Zn, Ca, Al, and Si by atomic absorption spectrophotometry. All of the elements showed a decreasing rate of solution with increasing time.
J C, Pulver, D R, Rossington
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Mechanical manipulation of silicate cements
The Journal of the American Dental Association, 1955adapts to dentistry a suction or vacuum principle first used in industry. It pro vides a means of cleansing the operating field with copious isothermal irrigation. The debris is then removed by a power ful but nevertheless a gentle vacuum air stream. Human tissues are maintained in their natural wet state.
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Toxic elements in silicate cements
European Journal of Oral Sciences, 1979Abstract – Six brands of silicate cements have been characterized by means of optical emission spectrography with respect to the contents of elements in minor or trace quantities in a search for presence of possible toxic elements. Beryllium was observed in two powders at levels of 1.3 and 1.6%. Cadmium was found in two powders at levels of 0.02 and 0.
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Dental Silicate Cements: V. Electrical Conductivity
Journal of Dental Research, 1968The variation of the electrical conductivity of dental silicate cements with age is described, and the effects of varying temperature, powder-liquid ratio, and constitution of the liquid are discussed. A correlation with specification solubility is shown for a number of commercial brands.
A D, Wilson, B E, Kent
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Static Stress Measurements in Silicate Cement
Journal of Dental Research, 1966SYNOPSIS IN INTERLINGUA MESURATIONES DEL STRESS STATIC IN CEMENTO A SILICATO.—Un recentemente disveloppate microtransductor de un diametro externe de 0,05 pollices esseva includite in specimens de proba a silicato standard. Le stress interne del silicato esseva registrate e notate in papiro graphic ab le microtransductor.
E C, Watkins +4 more
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Dental Silicate Cements: VI. Infrared Studies
Journal of Dental Research, 1968Infrared studies have shown that silica gel and H2PO4-1 ions are formed in fresh cement paste. Subsequently, during setting and hardening, H 2PO4-1 ions further react to form covalent phosphates and are removed from the system. In an uncertified cement, H2PO 4-1 ions were found in substantial amounts even in the set cement, which accounted for poor ...
A D, Wilson, R J, Mesley
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Dental Silicate Cements: VII. Alternative Liquid Cement Formers
Journal of Dental Research, 1968A number of alternative liquids to orthophosphoric acid have been examined as possible cement formers. Significant rules have been established for the chemical composition of cement-forming liquids. Cementation could only be achieved with aqueous solutions of certain complexing acids: polycarboxylic, ketonic, and fluoboric acid and derivatives of ...
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Tricalcium silicate cement sealers
The Journal of the American Dental Association, 2022Anita Aminoshariae +2 more
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