Instead of the traditional powder and monomer mixture that has been the standard for decades, Eclipse denture products have a unique chemistry. Eclipse is composed of the visible light-cured composite resin Urethane Dimethacrylate (UDMA). The system uses UDMA in three different forms to build the denture from the master cast up: base plate resin, set-up resin, and contour resin.
First, an accurate impression is taken. A denture model is then poured and coated with a separating agent. After this step, almost all of the traditional denture lab techniques you were taught go out the window when it comes to Eclipse. The messy, time-consuming denture flasking process is a thing of the past.
Using the model, baseplate resin is molded directly on the master cast. The baseplate resin offers excellent tissue adaptation and fit at the try-in appointment. The baseplate itself actually becomes a part of the final removable denture. The fit of the baseplate at the try-in appointment is the exact fit of the finished dental appliance.
Set-up resin is then used to arrange the fake teeth. Contour resin is used to form the design of the removable denture, adding bulk to support the soft tissue and for festooning. The flask-free denture is processed for one hour in a conditioning oven and for 15 minutes in a specially designed curing unit. The denture processing is followed by trimming, finishing, and polishing.