Abstract
The contourmeter was used to determine quantitatively the denture displacements caused by various impression materials and techniques during the relining of a maxillary denture. This study indicated the following conclusions. Tissue-conditioning material used with closed-mouth impression technique or light-bodied polysulfide used with either open- or closed-mouth technique caused the least denture displacement in the three dimensions when compared with regular-bodied polysulfide or zinc oxide and eugenol impression materials. Comparing the same impression materials used with either open- or closed-mouth technique showed no significant difference in maxillary denture displacements. A relined complete denture should be remounted on the articulator and the occlusion refined to eliminate occlusal mismatches resulting from three-dimensional denture displacements during relining.
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