[Comparative studies on the setting time of various phosphate cements and on the effect of differentiated powder-fluid ratios and air humidity on the setting time].
A comparative experimental study served to determine the standard consistency and setting time of various phosphate cements (according to DIN 13903). One of the products under investigation did not comply with standard specifications; therefore, from the viewpoint of setting behaviour, it cannot be recommended for cementing fixed tooth-restorations. It was shown that variations in the powder-liquid ratio affected the setting time, whereas variations in air humidity in the range from 50 to 100% exerted no signficant effects, which might lead to a simplication of material testing and quality control.
D006813:Humidity; D015036:Zinc Phosphate Cement / Q000592:standards*
D015036:Zinc Phosphate Cement
Vergleichende Untersuchungen über die Abbindezeiten verschiedener Phosphatzemente sowie den Einfluss differenzierter Pulver-Flüssigkeit-Verhältnisse und der Luftfeuchtigkeit auf die Abbindezeit.