TY  - JOUR
T1  - The Effect of Rewash on Putty-Wash Impression Technique in Fixed Prosthodontics
AU - , A. Sabouri AU - , S.J. Sadr 
JO  - Research Journal of Biological Sciences
VL  - 2
IS  - 7
SP  - 702
EP  - 705
PY  - 2007
DA  - 2001/08/19
SN  - 1815-8846
DO  - rjbsci.2007.702.705
UR  - https://makhillpublications.co/view-article.php?doi=rjbsci.2007.702.705
KW  - Rewash
KW  -reline
KW  -wash
KW  -impression
KW  -putty
AB  - In the two-step putty wash impression technique after providing first impression, sometimes there are defects in the impression that can be corrected by rewash (reline), although there are different opinions regarding this technique. This study was performed by experimental method on laboratory model. In addition to ten impressions from a laboratory model with routine putty-wash technique (single wash) as control group, another ten impressions were taken with rewash (double wash) technique for evaluation. Then die stones were poured and 20 stone models were provided. Different dimensions of all stone models were compared with lab model and the results were analyzed by t - test. The height of die in the rewash impression technique comparing with control group decreased but its p-value was not statistically significant. Meanwhile, in the rewash technique, there was a significant decrease in die diameter and the distance between two dies increased due to shrinkage. Rewash impression technique leads to reduction in die diameter. When, there is an undercut below finishing line, die diameter significantly decrease in rewash technique. Rewash technique is debatable because of reduction in tooth diameter, so it is not advisable.
ER  -