Study on the Restoration of Class II Carious Cavities by Virtual Methods: Simulation of Mechanical Behavior

The restoration of class II cavities is predominantly carried out with composite materials. Due to the high failure rate in restoring this type cavity, materials much-improved properties and new application techniques have been promoted. study aimed analyze mechanical behavior several topical (nanocomposites, nanohybrids ormocer) using different techniques. In a lower second molar, occlusal cavity was prepared. As filling materials, we used following combinations: Admira Fusion Flow, Grandio Filtek Supreme XT Flow. These were applied snow plow, injection molded Bichacho Three-dimensional scanning molar prepared performed, then each layer added material obtaining three-dimensional models. virtual models analyzed software specific finite element analysis method, where their physical-mechanical entered assigned components molar. Simulations at forces bruxism analyzed, compared. values displacements strain, for all six situations, are relatively small (range from 5.25 × 10−6–3.21 10−5 displacement, 6.22 10−3–4.34 10−3 strain), which validates three methods used. far as stress concerned, they similar (250–300 MPa), except plow injection-molded Flow composites, maximum von Mises value more than double (approximately 700 MPa). When combination 1 mm thickness fluid found major influence on damping opposed 0.5 mm. Therefore, technique indicated expense by us state-of-the-art, clear indications resulting treatment carious lesions. However, association case Class clinical importance resistance masticatory forces.