Comparison 6. Rubber dam versus no rubber dam.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
6.1 Reduction in the level of contamination in aerosols	3		Mean Difference (IV, Random, 95% CI)	Totals not selected
6.1.1 At 1 meter from mouth ‐ RCT	1		Mean Difference (IV, Random, 95% CI)	Totals not selected
6.1.2 At 1 meter from mouth ‐ CCT	1		Mean Difference (IV, Random, 95% CI)	Totals not selected
6.1.3 At 2 meters from mouth ‐ RCT	1		Mean Difference (IV, Random, 95% CI)	Totals not selected
6.1.4 At 2 meters from mouth ‐ CCT	1		Mean Difference (IV, Random, 95% CI)	Totals not selected
6.1.5 At forehead	1		Mean Difference (IV, Random, 95% CI)	Totals not selected
6.1.6 At left ear	1		Mean Difference (IV, Random, 95% CI)	Totals not selected
6.1.7 At submental triangle	1		Mean Difference (IV, Random, 95% CI)	Totals not selected
6.1.8 At occiput	1		Mean Difference (IV, Random, 95% CI)	Totals not selected