In vitro evaluation of micromarginal leakage of three filling systems--an autoradiographic analysis using radio isotope S35 as a tracer
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An in vitro study was carried out on 60 human pre- molar teeth to study the sealing efficacy of Glass Ionomer, Silver amalgam, Composite resin and cavity varnish in Class V cavities. The filled specimens were thermocycled (4 degrees C +/- 2 degrees C and 60 de... ...
