Table 5.

Paired t test for Merz aesthetic assessments in Table 4.

	Difference (Ⅰ) (before–after)	t	p	Difference (Ⅱ) (before–after)	t	p
NF	0.22	1.562	0.125	0.62	3.072	0.003
ML	0.18	1.000	0.322	0.48	2.147	0.037

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