Stress Distribution in Occlusal Veneers with Different Finish Lines When Applying Vertical and Tangential Forces

To evaluate stress distribution when applying vertical and tangential forces to 1mm thick occlusal veneers with different finish lines preparations, using the finite element method. One extracted third molar was prepared for veneers, firstly without any bevel. It scanned in order design two groups of lithium disilicate (G1A, G2A) composite resin (G1B, G2B) veneers. Then, preparation modified, beveling line it subsequently again veneer bevel (LD: G3A, G4A CR: G3B, G4B). The four were subjected (400 N 900 tangential). At 400 N, non-beveled showed slightly higher Von Mises values (G1A: 783 MPa G1B 736.5 MPa) than beveled (G3A: 685.7 G3B: 675.8 MPa). However, applied, (G4A: 4297 G4B: 4133 (G2A: 2581.1 G2B: 3519.1 Furthermore, observed that tissue under models Beveled presented similar applied; whereas applied near line, notably groups. both preparations adequate possible clinical performance.