Procedure & Laboratory Manual (continued from previous page)
BIOMET 3i ARCHITECH PSR® VIRTUAL DESIGN 12a. The soft-tissue master cast and the verified wax try-in are scanned and transferred into the CAD software. The CAM StructSURE® Precision Milled Bar is designed in CAD according to the work order form provided.
COPY MILLED DESIGN 12b. The acrylic bar or framework is scanned and transferred into the CAD software. The Copy Milled Bar or Framework is designed to match the acrylic bar or framework.
A link for virtual viewing of your CAM StructSURE design will be sent via email for a 24 hour preview and design verification (See pages 3-7 for viewing instructions).
13. Following the preview period, the design file is transferred to a milling machine for fabrication. After milling is complete, the bar or framework is finished and polished. The CAM StructSURE Bar or Framework, any requested components and case materials sent to BIOMET 3i are returned to the laboratory. The laboratory may send the CAM StructSURE Bar or Framework to the restorative dentist for intraoral try in or complete the prosthesis.
RESTORATIVE DENTIST - 4th Visit (Optional) 14. Remove the healing abutments or healing caps. Place the CAM StructSURE Bar or Framework onto the implants or abutments. Thread a try-in screw into the posterior most access hole until finger tight. Visually verify a passive fit on all interfaces. If interfaces are subgingival, take a radiograph to verify a passive fit. Remove the screw and place into the opposite posterior most access hole of the bar and repeat.
NOTE: If a fit discrepancy is detected during bar try in, one of the following corrective measures may be used. 1. The CAM StructSURE Bar or Framework may be sectioned and reassembled intraorally. Then the analog(s) in the master cast are repositioned by the laboratory and a new bar or framework is fabricated. 2. A new impression is made and a new master cast is poured. Then, the verification steps must be repeated and a new bar or framework is fabricated.
Please consult with your laboratory for recommended direction.
Hader or Dolder Bar
LABORATORY Hader Or Dolder® Bar Restoration 15a. Place the wax try-in on the cast. Place the matrix on the try-in and remove it with the denture teeth inside it. Attach the bar onto the analogs using try-in or lab screws. Transfer the denture teeth from the matrix over the bar on the cast and wax the denture for processing. Flask the waxed denture. Boil away the wax and separate the flask. Block out all undercuts and access holes with wax. Place the Hader/Dolder clips or other attachments onto the bar. Process and finish the overdenture prosthesis in a conventional fashion. Polishing protectors should be in place to protect the bar interfaces during all polishing procedures. Return the final prosthesis to the restorative dentist for delivery.
Fixed-Hybrid Bar
Fixed-Hybrid Restoration 15b. Place the wax try-in on the cast. Place the matrix on the try-in and remove it with the denture teeth inside it. Attach the bar onto the analogs using waxing screws. Transfer the denture teeth from the matrix onto the bar on the cast and wax the fixed-hybrid prosthesis for processing. Flask the waxed fixed-hybrid prosthesis. Boil away the wax and separate the flask. Block out all undercuts with wax. Process and finish the fixed-hybrid prosthesis in a conventional fashion. Polishing protectors should be in place to protect the bar interfaces during all polishing procedures. Return the final prosthesis to the restorative dentist for delivery.
Milled Primary Bar
Milled Primary And Secondary Bar Restoration 15c. Place the wax try-in on the cast. Place the matrix on the try-in and remove it with the denture teeth inside it. Attach the primary bar onto the analogs using try-in or lab screws. Seal the access holes and block out all the undercuts with wax. Make a refractory model of the primary bar on the cast. Wax and cast the secondary bar on the refractory model with the selected attachments. Fit the secondary bar onto the primary bar on the cast. Place the attachments. Transfer the denture teeth from the matrix onto the secondary bar on the cast and wax for processing. Flask the waxed prosthesis. Boil away the wax and separate the flask. Block out all undercuts and access holes with wax. Process and finish the prosthesis in a conventional fashion. Polishing protectors should be in place to protect the bar interfaces during all polishing procedures. Return the final prosthesis to the restorative dentist for delivery.
