Abstract
ABSTRACTOne of the most important steps is accurate impression making for fabrication of fixed partial denture.The two different putty-wash techniques that are commonly used are: (1) Putty-wash one-step technique, (2) putty-wash two-step technique.A uniform wash space is needed for an accurate impression. Nissan et al recommended the use of two-step technique for accurate impression making as there is uniform wash space for the light body material to polymerize.The aim of the present study was to compare the accuracy of stone casts obtained from different putty-wash impression techniques using various spacer thickness.The critical factor that influences the accuracy of putty-wash impression techniques is the controlled wash bulk which is absent in one-step putty-wash impression technique and with polyethylene spacer was used.How to cite this article: Chugh A, Arora A, Singh VP. Accuracy of Different Putty-Wash Impression Techniques with Various Spacer Thickness. Int J Clin Pediatr Dent 2012;5(1):33-38.
Highlights
One of the most important steps is accurate impression making for fabrication of fixed partial denture
Nissan et al recommended the use of two-step technique for accurate impression making as there is uniform wash space for the light body material to polymerize
Clinical success of fixed prosthodontic procedure is dependent upon the dimensional accuracy of elastomeric impression material and impression procedures
Summary
One of the most important steps is accurate impression making for fabrication of fixed partial denture. The two different putty-wash techniques that are commonly used are: (1) putty-wash one-step technique, (2) putty-wash twostep technique. A uniform wash space is needed for an accurate impression. Nissan et al recommended the use of two-step technique for accurate impression making as there is uniform wash space for the light body material to polymerize. Putty acts as a tray for wash material. Light body being less viscous has good flow to record the fine details resulting in an accurate impression. An accurate impression produces the stone casts with minimal dimensional change in regard to the vertical and horizontal dimension between the prepared abutments. Clinical success of fixed prosthodontic procedure is dependent upon the dimensional accuracy of elastomeric impression material and impression procedures
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