The concepts and techniques of esthetic dentistry have been evolving for years, and with the advances from the evolution, more clinicians consider that dental esthetic management is an essential element of successful treatments. A growing number of studies are now available to shed some light on the interdisciplinary management that integrates works from different specialists to achieve more predictable outcomes. One of the most challenging aesthetic problems is excessive gingival display (EGD), i.e. gummy smile. It results from various etiologies that can be treated with corresponding procedures. The aim of this study is to introduce a diagnostic flowchart as a reference for the treatment of EGD in an interdisciplinary approach.