- Is the smile line a valid parameter for esthetic evaluation? A systematic literature reviewNicole Passia
Department of Prosthodontics, Albert Ludwigs University, Freiburg, Germany
Eur J Esthet Dent 6:314-27. 2011..Conclusions: The smile line is a valid tool to assess the esthetic appearance of a smile. It can be applied universally as clinicians and laypersons perceive and judge it similarly...