00000ctm a22000003a 4500 UP-1685523046125455918 Buklod 20080207135630.0 a r |||| u| ta 080207s xx d r |||| u| (iLib)UPMNL-00000979628 UPDent eng LG 993.5 1988 D4 M86 Munoy, Maydene Y. A study of the comparative accuracy of repeat pour of models from a single impression using condensation-silicone impression material (silaplast) Maydene Y. Munoy, Rubenita C. Munoz. 36 leaves Seminar Paper--Doctor of Dental Medicine--University of the Philippines Manila The study was conducted to evaluate the accuracy of the repeat pour of stone dies produced from single condensation-silicone impression as reliable work models. Ten (10) impressions of a full crown steel die taken using Silaplast impression material were poured with dental stone immediately and repoured serially at intervals of 1 hour, 6, 12 and 24 hours from the second hour after impression taking. The accuracy of the 50 experimental stone dies were assessed by measuring 3 dimensions (d, e, L) using the Universal Length Measuring Machine Type 500 and Vernier caliper. Generally, the stone dies produced resulted in increased diameter and length and decreased margin from the first pour to the fifth pour of stone dies. Due to lack of statistical analysis, no conclusions were drawn. Dental impression materials. Munoz, Rubenita C. Macasaet, Avelino (Adviser). UPMNL DENT LG 993.5 1988 D4 M86 Thesis