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

Table 3

One-way ANOVA of daily activities and dental health of dentists, dental assistants, and controls population.

	Sum of squares	Degree of freedom	Means of square			Significance
Working class	12185.44	2	6092.72	32.049	0.000
Daily working hours	11404.47	3	3801.49	18.966	0.000
Amalgam fillings/week	15824.88	3	5274.96	34.385	0.000
Number of own fillings	2577.81	3	859.27	2.9193	0.038
Smoking	139.93	1	139.93	0.446	0.505	NS
Work experience	23006.71	3	7668.9	99.591	0.000
Feeding habits	720.77	1	720.77	2.343	0.129	NS

Significant at ; NS: nonsignificant values.