Smiletron® is based on a new concept in which cosmetic dentist’s visual cognition during observation, analysis and redefinition of a patient ideal smile is studied and analyzed. The cognitive processing – i.e. the cognitive analytical approach implemented by the system – is applied through calculation of a set of parameters defined by their unique sequential analysis. The final synthetic processing is the result of an innovative algorithm developed through mathematical functions, interconnections based on scientific knowledge evidence, feedback, mathematical logical systems. The resulting system is able to mimic human reasoning. Emotional factors – vital elements of human perception – are implemented through a set of interactive and subjective parameters that, suitably modulated by the dentist, provide the system with a significant added value.