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Impression techniques
This document discusses various techniques for dental impressions, including: 1. Techniques are categorized based on mouth position (open vs closed), pressure applied (positive, negative, selective), mixing technique (double mix, putty-wash, monophase), and tray used (custom vs stock). 2. The putty-wash technique involves injecting light-body material around a tooth preparation and seating a tray filled with heavy-body material over it to capture both materials. 3. The monophase or single-mix technique uses a medium-viscosity material both in a stock tray and syringe to reduce waste and time compared to custom trays.
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