Introduction: Aesthetics has become a common demand in dentistry. As practitioners, we have to understand harmony, beauty, proportion, and symmetry when planning treatment. In Digital Era the analysis of patient's smile and the treatment plan could be done in digital mode. Method: The Aesthetic Smile Criteria and usual software as Microsoft Power Point® were used for developing a method that simplifies the Smile Correction Protocol. As an example, we choose a simple clinical case of a lateral upper incisor situated in wrong position. The result leads us to the correct treatment plan. Discussions: Due to this digital technique we can detect in an accurate way the needful changes of patient's smile and we are able to provide clinical precise information, useful for the dental technician in order to produce the ideal restoration. Conclusions: The use of computer in Smile Design process permits us to achieve better results and to avoid any misunderstanding that can occur during the communication process with the dental laboratory. Keywords: smile design, perfect smile, software, aesthetic, digital mock-up