Effect of material bulk and undercuts on the accuracy of impression materials.
A truncated cone-shaped chromium steel die was used to determine the influence of the bulk of elastomeric impression material and size of undercut on the dimension of stone dies. It was found that both conditions affect the accuracy of stone dies. The possible clinical implications of the inaccuracies were discussed.
D002133:Calcium Sulfate; D003760:Dental Impression Materials; D003761:Dental Impression Technique; D004548:Elasticity; D003765:Models, Dental; D012408:Rubber; D012826:Silicone Elastomers; D013440:Sulfides
D003760:Dental Impression Materials; D012826:Silicone Elastomers; D013440:Sulfides; D012408:Rubber; C032915:polysulfide; D002133:Calcium Sulfate