Internal Prosthetic Manual - BioHorizons

SINGLE-TOOTH SCREW RETAINEDLab 4 - Fabricate patternUse wax and/or acrylic burnout resin to incorporate the modified CustomCast Abutment into the pattern. Final contours of the pattern may bebuilt up with crown & bridge wax.Lab 5 - Prepare and sprue the frameworkSprue according to normal laboratory procedures.Apply a thin layer of wax or burnout resin at the junction of the premachinedgold portion of the abutment and the plastic sleeve to ensurea smooth casting.Lab 6 - Investing and castingInvest and cast the coping pattern in noble or high noble alloy accordingto manufacturer’s instructions.Divest, fit and finish the casting following conventional laboratorytechniques. Redefine the screw access hole within the casting with areamer as needed.IMPORTANTWhen divesting and casting, it is important not to sandblast theimplant / abutment interface. Doing so could result in a poor fitbetween the abutment and implant.Mounting the custom abutment onto the appropriate Analog Handleduring this step can prevent distortion of the implant / abutmentinterface.shop online at www.biohorizons.com49