Digital videographic measurement of tooth display and lip position in smiling and speech: Reliability and clinical application
Introduction: Tooth display and lip position in smiling and speech are important esthetic aspects in orthodontics and dentofacial surgery. The spontaneous smile and speech are considered valuable diagnostic criteria in addition to the posed social smile. A method was developed to measure tooth display in both smile types and speech.
Conclusions: This videographic method is reliable for measurement of tooth display and lip position in spontaneous and posed smiling and speaking. Application of the method is warranted especially when obtaining an emotional smile is difficult, such as cleft lip and palate or disfigured patients. (Am J Orthod Dentofacial Orthop 2007;131:301.e1-301.e8)
Download the full article, from the American Journal of Orthodontics and Dentofacial Orthopedics March 2007
