Tables 3: Distribution of esthetic outcomes according to the division of PES scores into three clinically relevant levels at baseline and follow-up session.

Baseline Follow-up
Frequency Percentage Frequency Percentage
Poor (0-7) 1 5.3% 1 5.3%
Acceptable (8-11) 7 36.8% 8 42.1%
Almost perfect (12-14) 11 57.9% 10 52.6%

Wilcoxon Signed Ranks Testshowed there are no significant differences in the clinically relevant esthetic outcomes between the two time points (p > 0.05). Fig. (1) presents the cumulative percentages of the PES for the baseline and follow-up sessions. The limits that separate each clinically relevant category are represented using dotted lines.