Table 1.

Quality appraisal of the included studies according to the modified CONSORT 2010 checklist.

High Quality	Medium Quality		Low Quality
Attar [31]	Adams et al. [32]	Adegoke et al. [33]	-
Glover et al. [8]	Alrowayeh et al. [34]	Anap et al. [9]
	Anton et al. [5]	Anyfantis and Biska [35]
	Asghari et al. [36]	Ayers et al. [37]
	Campo et al. [38]	Choobineh et al. [39]
	Chung et al. [10]	Cromie et al. [17]
	Hayes et al. [40]	Jang et al. [41]
	Kee and Seo [18]	Khan and Yee Chew [42]
	Kierklo et al. [43]	Knudsen et al. [44]
	Leggat and Smith [45]	Liang et al. [6]
	McLeod et al. [46]	Muaidi and Shanb [22]
	Munabi et al. [3]	Okuyucu et al. [4]
	Okuyucu et al. [47]	Pugh et al. [48]
	Rabiei et al. [49]	Ribeiro et al. [50]
	Smith et al. [51]	Szeto et al. [52]
	Szymańska [53]	Tinubu et al. [23]
	Vieira et al. [54]	Yeung et al. [55]