Determinants of dental esthetics: a rational for smile analysis and treatment.

An attractive smile has always been the focal point of a person's attention to improving esthetic appearance and thus self-esteem. It is the contrasts of shape, color, line, and texture that enable us to differentiate one tooth from another, the teeth from the gums, and the smile from the face To understand why a smile with dentition in harmony is considered beautiful, clinical examples are presented to illustrate how to apply visual perception to the dental environment. These simple principles of visualization and treatment can be successfully applied to enhance the smile of any patient.