Even after investing a lot of time and clinical skill a definitive movement of teeth during and after processing has long been observed which lead to occlusal discrepancies & disturb the harmonious occlusal scheme achieved earlier. Shifting of the teeth can occur as a result of the investing procedures & investing materials. The objective of this study was to evaluate and compare the movement of artificial teeth in two dimensions of space during processing of the waxed-up dentures using two different gypsum materials for investing. Two groups of 15 waxed-up maxillary dentures were processed using two different investing mediums a) dental plaster & b) combination of dental stone core & plaster mold. The artificial teeth movement was measured in the medio-lateral and the antero-posterior directions between predetermined reference points before and after processing with the aid of a traveling microscope. The findings were statistically analyzed using parametric‘t’ tests and ANOVA ‘F’...

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