Table 2.

Mouth opening and visual analogue scale (VAS) in TMJOA group with twice HA treatments (n = 18)

	First injection	Second injection	P
Mouth opening (cm)	3.37 ± 0.96	3.87 ± 0.075	< 0.001
VAS	1.43 ± 0.92	0.25 ± 0.44	< 0.001