![]() It’s time to see how a few simple refinements in your technique could add up to greater improvements in your impressions and final restorations. Soft and hard tissue anatomy, gingival displacement, moisture management and the behavior of impressioning materials are all part of the equation. 1ĭental practitioners would be well-advised to take greater care to evaluate the quality of their own impressions, rather than passing over minor mistakes – which could be magnified later in the procedure. A recent evaluation conducted within a commercial dental laboratory determined that 86% of crown-and-bridge impressions contained at least one detectable error and 55% contained a critical error related to the finish line. Today’s materials may be more forgiving than their predecessors, but they can’t fully compensate for shortcomings in the procedure. Gingival displacement and accurate impressioning still pose some of the greatest challenges in dentistry, despite the use of modern impressioning materials. In fact, any flaws can be compounded throughout the rest of the procedure. It’s not easy to compensate for any voids or errors in the first impression. Critical areas, critical consequencesĬritical areas require exact duplication of detail, such as margins (especially subgingival) and the fine details of tooth preparations for crowns, veneers, onlays or inlays. How do you avoid the dreaded void? By using careful, proper technique to create a quality impression, which is the basis of a successful restoration. Only the dentist can provide the information necessary to error-free reproduction. A technician cannot accurately add detail that the impression itself lacks. Naturally, there is a hole in this logic. In spite of the known importance of the impression, laboratory technicians are often asked to create flawless restorations based on flawed – or incomplete – information. Here, first impressions matter most, and every step that follows hinges on an accurate impression. But one step stands above the rest as critical to success: impressioning. The process of fabricating an indirect restoration takes careful attention to detail at every step – because there are many opportunities for error.
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