Improving marginal adaptation of provisional restorations

Tbe primary objective ofa provisional restoration is to promote gingival health before placetnent of the fittal restoration. A tnethod for construction of a provisiotial fixed parttal denture with improved tnarginai adaptation without the use of an indirect method is presented. A prefortncd shell of the provisional restoration must be fabricated from the diagnostic cast before any operative procedure is attempted. The laboratorymade shells are relined litraorally to protnote close adaptation to the finishing line of Ihe prepatation. A wash of cold-curing acrylic resin is applied to the margins while the bulk of the relining tnaterial is at the doughy stage. The technique provides superior restdts and reduced chainime.