Use of Mercury in Dental Silver Amalgam: An Occupational and Environmental Assessment

Table 2

Mean mercury concentration (µg/L) in the blood samples of dentists, dental assistants, and controls.

	Sample size ()	Mean Hg (µg/L)	Standard deviation
Dentists ()
Group 1	12	11.8043	5.2648
Group 2	11	20.1561	4.91
Group 3	8	45.4438	5.5091
Group 4	6	62.8332	8.7466
Dental assistants ()
Group 1	19	16.4516	4.4547
Group 2	8	27.6555	6.0964
Group 3	4	43.2331	8.1866
Group 4	0	0	0
Controls ()
Group 1	11	1.7691	0.8087
Group 2	8	3.9253	0.6833
Group 3	6	4.4708	0.8654
Group 4	5	4.1234	1.3791