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The Effect of Variability in the PowderLiquid Ratio on the Strength of Zinc Phosphate Cement
المؤلفون المشاركون
Burke, Francis M.
McKenna, Jill E.
McKenna, Gerald
Ray, Noel J.
المصدر
International Journal of Dentistry
العدد
المجلد 2011، العدد 2011 (31 ديسمبر/كانون الأول 2011)، ص ص. 1-4، 4ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2011-12-08
دولة النشر
مصر
عدد الصفحات
4
التخصصات الرئيسية
الملخص EN
Aim.
To investigate (a) variability in powder/liquid proportioning and (b) effect of variability on diametral tensile strength (DTS), in a zinc phosphate cement.
Statistical analyses (α=0.05) were by Student’s t-test in the case of powder/liquid ratio and one-way ANOVA and Tukey HSD for pair-wise comparisons of mean DTS.
The Null hypotheses were that (a) the powder-liquid mixing ratios would not differ from the manufacturer’s recommended ratio (b) DTS of the set cement samples using the extreme powder/liquid ratios would not differ from those made using the recommended ratio.
Methodology.
34 dental students dispensed the components according to the manufacturer’s instructions.
The maximum and minimum powder/liquid ratios, together with the manufacturer’s recommended ratio, were used to prepare samples for DTS testing.
Results.
Powder/liquid ratios ranged from 2.386 to 1.018.
The mean ratio (1.644) was not significantly different from the recommended value of 1.718 (P=0.189).
DTS values for the maximum and minimum ratios were both significantly different from each other (P<0.001) and from the mean value obtained from the recommended ratio (P<0.001).
Conclusions.
Variability exists in powder/liquid ratio for hand dispensed zinc phosphate cement.
This variability can affect the DTS of the set material.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
McKenna, Jill E.& Ray, Noel J.& McKenna, Gerald& Burke, Francis M.. 2011. The Effect of Variability in the PowderLiquid Ratio on the Strength of Zinc Phosphate Cement. International Journal of Dentistry،Vol. 2011, no. 2011, pp.1-4.
https://search.emarefa.net/detail/BIM-489864
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
McKenna, Jill E.…[et al.]. The Effect of Variability in the PowderLiquid Ratio on the Strength of Zinc Phosphate Cement. International Journal of Dentistry No. 2011 (2011), pp.1-4.
https://search.emarefa.net/detail/BIM-489864
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
McKenna, Jill E.& Ray, Noel J.& McKenna, Gerald& Burke, Francis M.. The Effect of Variability in the PowderLiquid Ratio on the Strength of Zinc Phosphate Cement. International Journal of Dentistry. 2011. Vol. 2011, no. 2011, pp.1-4.
https://search.emarefa.net/detail/BIM-489864
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-489864
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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