Tooth preparation the tooth is prepared for the cast

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Tooth PreparationThe tooth is prepared for the cast restoration to slide into place and be able to withstand the forces of occlusion.Rotary instruments are used to reduce the height and contour of the tooth.Hand cutting and rotary instruments prepare the gingival margins. Overview of a Fixed Prosthodontic Procedure-con’tRetention AidsTo provide additional support for the crown if the tooth is extensively decayed, fractured, or has been endodontically treated Core buildupPin retention Post and coreOverview of a Fixed Prosthodontic Procedure-cont’dGingival Retraction and Tissue Management Cord temporarily displaces the gingival tissue and widens the gingival sulcus so impression material can flow around all parts of the preparation. Nonimpregnated ImpregnatedProcedure 50-1 Position cord around tooth preparationOverview of a Fixed Prosthodontic Procedure-cont’dFinal ImpressionElastomeric impression materials are used to create an extremely accurate impression
Mixing and applying light-bodied material around the prepared toothMixing and loading of tray with heavy-bodied material to be seated onto the quadrant or arch Overview of a Fixed Prosthodontic Procedure-cont’dBite Registration

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