Table 3.

CONSORT-based quality analysis of the included studies

Study	Sample size (0–2)	Randomization (0–2)	Inclusion/ exclusion criteria (0–1)	Follow up (0–1)	Baseline (0–2)	Masking (0–2)	Statistical analysis (0–2)	score	Total Risk of Bias
Sharma et al. (2018) [18]	1	2	1	1	2	2	2	11	moderate
Thriveni et al, (2018) [17]	0	1	1	0	2	1	2	8	High
Chandak et al, (2017) [19]	0	1	1	0	2	0	1	6	High
Vijayabala et al. (2013) [4]	1	1	1	1	2	1	2	9	moderate
Ylikontiola et al. (1997) [13]	0	1	1	1	2	1	2	10	high