Objective: Through the regular examination of mercury concentration in urine this study was to observe the dynamic change of the mercury concentration in the patients with amalgam fillings so as to find out the effect of amalgam on health.
Methods: Determine the mercury concentration of the patients in urine after amalgam filled regularly serving the mercury concentration of the patients in urine before amalgam filled as self control to observe the dynamic change of the mercury concentration in patients with amalgam fillings.
Results: It was found that mercury concentration in urine went up distinctly 1 day after amalgam filled dropped slightly 1 week after amalgam filled fell obviously and resumed almost to the baseline 2 weeks after amalgam filled set at the baseline 4 8 weeks and 1 year after amalgam filled.
Conclusion: Amalgam don't have clear side effect on health based on the mercury concentration in urine.