Abstract
An accurate transfer of relationship of multi-unit implants from mouth to the master cast demands a rigid splinting of impression copings. Auto-polymerizing acrylic resin, the most commonly used material for such splinting, exhibits polymerization shrinkage resulting inaccurate transfer of spatial relationship of implants from mouth to the master cast. This article describes a simple laboratory and clinical procedure for minimizing this effect by sectional splinting approach. The technique utilizes the procedure of sectioning and rejoining of the resin between the impression copings, thus providing an adequate compensation for resin shrinkage. It assures an optimum accuracy of fit of one-piece cast implant framework while fabricating a full-mouth implant-supported prosthesis.
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