Table 4. Area of contamination on the assistant.

Area of assistant	Group		P value*
	HVE (n=5) (% surface area) Mean ± SD	HVE+EOS (n=5) (% surface area) Mean ± SD
Right wrist	0.047±0.040	0.015±0.032	0.056
Left wrist	0.058±0.090	0.052±0.019	0.690
Chest	0.068±0.009	0.005±0.012	0.841
Abdomen	0.027±0.051	0.014±0.020	1.00
Lap	1.606±1.674	0.130±0.109	0.008

*Independent sample t-test or Mann-Whitney U test, significant at the P < 0.05 level. EOS, extra-oral suction; HVE, high-volume evacuator.