Internal Prosthetic Manual - BioHorizons

CUSTOM TRAY FABRICATIONLab 1 - Master castPlace direct copings on the analogs of a stone model that was made viathe appropriate Indirect Transfer Technique.For Implant-level see pages 17-20.For Abutment-level see pages 25-28.Helpful HintCustom trays better approximate the morphology of the archthan stock trays, allowing less impression material to be used.This results in a more accurate impression and subsequentstone model, making it easier to create a passive fittingrestoration.Lab 2 - Place wax spacerApply baseplate wax material around copings extending far enough tothe distal on each side to ensure an accurate intraoral seating along theretromolar pad.Lab 3 - Apply custom tray materialApply custom tray material around baseplate wax and cure per themanufacturer’s instructions. Remove the coping screws and separate thetray from the model. Remove the wax and copings from the hardenedtray. It may be necessary to slightly enlarge the screw access holes priorto clinical use. Use a trimming bur to remove only enough material toallow the tray to passively fit over the in situ coping screws.shop online at www.biohorizons.com37