Accuracy of three polyvinyl siloxane putty-wash impression techniques.

  title={Accuracy of three polyvinyl siloxane putty-wash impression techniques.},
  author={Joseph Nissan and B Z Laufer and Tamar Brosh and David Assif},
  journal={The Journal of prosthetic dentistry},
  volume={83 2},
STATEMENT OF PROBLEM There is much discussion in the dental literature concerning the effect of the impression technique on the accuracy of cast restorations. PURPOSE This study assessed the accuracy of 3 putty-wash impression techniques using the same impression material (polyvinyl siloxane) in a laboratory model. MATERIAL AND METHODS The 3 putty-wash impression techniques used were (1) 1-step (putty and wash impression materials used simultaneously); (2) 2-step with 2-mm relief (putty… CONTINUE READING


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