Table 4.

Merz aesthetic scores of wrinkles at rest (0–4) before the first session and after the last session, separately, with the independent t test between groups.

	Mean ± SD (before)		t	p	Mean ± SD (after)		t	p
	Ⅰ (n = 50)	Ⅱ (n = 50)			Ⅰ (n = 50)	Ⅱ (n = 50)
NF	2.52 ± 0.81	2.24 ± 0.89	1.638	0.105	2.30 ± 0.99	1.62 ± 1.21	3.069	0.003
ML	2.40 ± 0.81	2.22 ± 1.07	0.947	0.346	2.22 ± 1.11	1.74 ± 1.16	2.115	0.037

Abbreviations: ML, marionette line; NF, nasolabial fold.