Internal Prosthetic Manual - BioHorizons

MULTIPLE-UNIT SCREW-RETAINEDLab 1 - Pour working castFollow the steps for creating an Implant-level Stone Model using eitherthe Indirect Transfer method (pages 17-20) or the Direct Pick-up method(pages 21-24).Helpful HintThe use of the Direct Pick-up Copings (Non-hexed)is strongly recommended when there is significantdivergence (angulation) of the implants. Failure to doso may make it difficult to remove the impression fromthe patient’s mouth.Lab 2 - Place abutments, mark and modifySeat the selected Custom Cast Abutments (Non-hexed) onto the ImplantAnalogs in the working cast. Hand-tighten the Abutment Screws withthe .050” (1.25mm) Hex Driver, Long.Determine modifications needed to provide adequate room for thefabrication of bridge. Modify the plastic sleeves of the abutments with acutting disk for correct vertical and interproximal clearances.Lab 3 - Fabricate patternUse wax and/or acrylic burnout resin to incorporate the modified CustomCast Abutments into the pattern. Final contours of the pattern may bebuilt up with crown & bridge wax.shop online at www.biohorizons.com60