Influence of impression technique and material on the accuracy of multiple implant impressions.
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.
Wöstmann
Bernd
B
Department of Prosthodontics, Justus-Liebig-University, Giessen, Germany. bernd.woestmann@dentist.med.uni-giessen.de
Rehmann
Peter
P
Balkenhol
Markus
M
D015921:Dental Implants; D003760:Dental Impression Materials; D003761:Dental Impression Technique; D004987:Ethers; D006801:Humans; D003765:Models, Dental; D011145:Polyvinyls; D015203:Reproducibility of Results; D012833:Siloxanes; D018709:Statistics, Nonparametric
D015921:Dental Implants; D003760:Dental Impression Materials; D004987:Ethers; D011145:Polyvinyls; D012833:Siloxanes; C034183:vinyl polysiloxane