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.