BioMed Research International / 2015 / Article / Tab 1 / Clinical Study
An Open-Label Uncontrolled, Multicenter Study for the Evaluation of the Efficacy and Safety of the Dermal Filler Princess VOLUME in the Treatment of Nasolabial Folds Table 1 Modified Fitzpatrick Wrinkle Scale grade definitions* .
Grade Definition 0 No wrinkle: no visible wrinkle, continuous skin line 0.5 Very shallow yet visible wrinkle 1 Fine wrinkle: visible wrinkle and slight indentation 1.5 Visible wrinkle and clear indentation, <1 mm wrinkle depth 2 Moderate wrinkle: clear visible wrinkle 1-2 mm wrinkle 2.5 Prominent and visible wrinkle: more than 2 mm and less than 3 mm wrinkle depth 3 Deep wrinkle: deep and furrow wrinkle; more than 3 mm wrinkle depth
As outlined in [18 ]. Wrinkle depth is based on assessors’ estimation rather than physical measurement.