What is an implant fit verification jig?
A fit jig is a sectioned implant model verification apparatus. When an implant model is created from PVS impressions, it is inherently inaccurate due to the variable of poly vinyl expansion, impression post movement, and expansion of stone. To verify or correct the model, a jig is created connecting all the implants or abutments and is section, and then luted in the mouth passively, then returned to the lab to verify the model.
What is used to lute a fit jig in the mouth?
Many materials are available. It is important to use materials that do not shrink when cured, such as duralay, GC Pattern Resin, Voco or stellar.
Can fit jigs be made of stone?
Yes, this is a very good technique to ensure 100% passive fit. They can be tricky to keep intact during transportation and brining back to the original model, but with care it can be the best verification.
What is an iJIG?
iJIG is a patent-pending fit verification jig that is digitally designed to be the prototype for the final. It is fabricate from special scans of an existing prosthetic.
What records are needed for an iJIG?
Special iJIG scan analogs are purchased from ROE Dental Lab. They are attached to an existing full arch prosthetic outside the mouth and a 360 scan is captured of the prosthetic and the analogs. Once scanned perfectly, it is then reseated and an opposing impression and bite are captured and uploaded to ROE. One more scan allows ROE to design an iJIG that meets the tissue, which is to scan the arch of tissue and MUA heads only and uploaded.
What is an iJIG made of?
iJIGs are always printed resin. They can be added to using flowable materials and are easily adjusted as needed.