Trinta e sete amalgamadores considerados novos e usados, de cinco marcas comerciais, foram avaliados comparando-os em relação à freqüência de oscilação e à sua possível influência no "creep" do amálgama. Não existiu diferença significante para o número de revoluções por minuto. O pistilo permitiu uma trituração mais eficiente e rápida, ocasionou o aumento da temperatura de trituração e proporcionou um amálgama de menor "creep".
Thirty seven used and new amalgamators of five different commercial brands were compared for the frequency of oscillation they produce in order to verify a possible relationship between frequency and creep of the amalgam. No significant differences in frequency were observed; yet the use of the pestle alone allowed a quicker, more efficient trituration under increased temperature, and it produced an amalgam with lower creep.
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