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Volume 21 , Issue 4
July/August 2008

Pages 299–301

Short Communication: Influence of Impression Technique and Material on the Accuracy of Multiple Implant Impressions

Bernd Wöstmann, Dr Med Dent/Peter Rehmann, Dr Med Dent/Markus Balkenhol, Dr Med Dent

PMID: 18717085

This study aimed to analyze the influence of impression technique (pick-up versus reposition) and material on the accuracy of the working cast. Sixty impressions were made with 3 materials from a master cast with 4 XiVE implants. The changes in the implant axis direction, rotation, and 3-dimensional shift were assessed. The pick-up technique showed significantly (P < .05, U test) lower values for axis direction and 3D shift but higher values for rotation than the reposition technique. The differences between the materials were not significant (P > .05, H test). It can be concluded that the impression technique—in contrast to the impression material—has a significant influence on transfer accuracy. Int J Prosthodont 2008;21:299–301.

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