Experimental study of the properties of the base of a novel combined full laminar overdenture

This research is targeted at experimental study of the properties of the base of a newly-designed combined full laminar overdenture which is used in fully edentulous patients. The design is novel in that a framework ( Bicon LLC , Boston, USA) made of a fibreglass-based composite (for example, Trinia ). It is introduced into the base of a full laminar overdenture which is made of an acrylic resin. To substantiate performance of the proposed design and of subsequent modeling of biomechanical behaviour of the of the novel combined dental design, properties of the following base specimens were subjected to comparative study: 1 - poly(methyl methacrylate)-based acrylic resin; 2 - mesh-reinforced poly(methyl methacrylate)-based acrylic resin, Renfert (Germany); 3 - Trinia -framework poly(methyl methacrylate)-based acrylic resin. The experimental studies determined that, when combined with Trinia ( Bicon LLC , Boston, USA), the base resin demonstrates excellent strength properties, considerably better than in the existing counterparts. Furthermore, metal mesh showed low performance when used to reinforce full laminar overdenture base. The findings will allow us to proceed with biomechanical modelling and to look into distribution patterns of functional loads which develop at the basal seat when a full laminar overdenture is used, and to determine optimum parameters for the structural components of the newly-designed combined full laminar overdenture.