A series of four V-shaped methylpyrimidinium salts bearing diphenylamino-electron-donating groups appended at various pyrimidine positions were designed. These chromophores obtained by regioselective N(1) monomethylation methyl methanesulfonate the core. Linear optical properties studied experimentally and electronic further completed (TD)-DFT calculations. The second-order nonlinear (NLO) also...

Because many mechanical variables are present in the oral cavity, the proper load transfer between the prosthesis and the bone is important for treatment planning and for the longevity of the implant-supported fixed partial denture. Objectives To verify the stress generated on the peri-implant area of cantilevered implant-supported fixed partial dentures and the potential effects of such variab...