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Abstrak :
An experimental laboratory study has been conducted to investigate the effect of temporary zinc oxide eugenol cement on the transverse strength of self-cure acrylic resin. Two groups of resin plates 20x9x1 mm in dimensions were incorporated in the study. Each groups consisted of 31 specimens. On the first group was applied a 0.1 mm thickness of temporary zinc oxide eugenol cement on acrylic which is only partially polymerized. The time we establish here was 30 minutes, thus the zinc oxide eugenol cement was applied 30 minutes following the beginning of the mix. After being stored in a incubator with the temperature set at 37°C for 7 days in water, all the specimens were subjected to load by Shimadzu machine with cross head speed of 0.05 inch/min- Results were analyzed with T-test showing that the two groups differed significantly. It was observed that zinc oxide eugenol cement decreases the transverse strength of self-cure acrylic resin significantly By mathematical equation, 0-03 mm increase in thickness in the experimental group might produce the same strength as the control group.

Abstrak :
Terlepasnya pasak tuang karena fitness yang tidak baik terhadap permukaan saluran akar, menyebabkan retensi pasak tidak optimal. Penelitian ini adalah suatu kwasi eksperimental laboratorik yang membandingkan akurasi pola pasak resin akrilik dan pola pasak inlay wax berdasarkan waktu penyimpanan. Pengamatan dilakukan terhadap celah marginal antara master die dengan spesimen menggunakan Electric Measuring Microscope MM-40 Nikon. Waktu penyimpanan yang diamati adalah 15 menit, 30 menit dan 24 jam. Secara deskriptif terbukti kontraksi inlay wax lebih besar dibandingkan kontraksi resin akrilik. Hasil uji ANOVA 2 arah menunjukkan interaksi antara waktu penyimpanan dan jenis bahan pola, sedangkan hasil ANOVA 1 arah menunjukkan perbedaan bermakna antar waktu penyimpanan masing-masing bahan pola pada P 0.000. Hasil uji Limit Significant Difference pada masing-masing bahan pola menyimpulkan adanya perbedaan bermakna antar waktu penyimpanan, sedangkan uji menyimpulkan pula perbedaan bermakna pada masing-masing waktu penyimpanan antara kedua bahan pola. Disimpulkan akurasi pola pasak resin akrilik lebih baik dibandingkan pola pasak inlay wax.