Ciuffolo F. A soft-tissue vertical line to research the profile harmony. Dent Oral Maxillofac Res, 2020; 6: 1-9.
The anterior-posterior position of upper incisor is a determinant of the ideal soft-tissue profile . For this reason, from the beginning of our specialty, “the profile with perfect harmony” was researched  and different analysis have been described for this purpose [1-5]. Since many variables have been used to analyse the ideal soft tissue profile, the aim of this clinical paper is to describe and propose an easy and quick analysis to establish the anterior-posterior position of upper incisor in relation to the soft-tissue profile, by using two lines and two soft-tissue landmarks.
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