IMPRESSION Definition: It is the negative replica of the structures of the oral cavity be it hard(tooth) or soft(gingiva, mucous membrane) structures, which are used to fabricate the cast or model of the patient, and for making crowns, dentures, and other prosthesis. CLASSIFICATION OF IMPRESSION MATERIALS. I) Based on mode of setting & elasticity a) [&hellip
The Perfect impression is the first step towards the preparation of a perfect prosthesis for the patient, so utmost care should be taken during Impression taking. Filed under are some guidelines which followed thoroughly will lead to a Good impression. 1. Uniform, homogeneous mix of Impression material 2. Tray is sufficiently filled with impression material [&hellip
It is the negative replica of the structures of the oral cavity be it hard(tooth) or soft(gingiva, mucous membrane) structures, which are used to fabricate the cast or model of the patient, and for making crowns, dentures, and other prosthesis. Materials used for taking Impression: The most commonly used material is Zinc oxide Eugenol– It [&hellip
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