Tooth Fillings and Adverse Health Conditions The table below shows results from a study in which some dental patients were treated with amalgam restorations and others were treated with composite restorations that do not contain mercury (based on data from “Neuropsychological and Renal Effects of Dental Amalgam in Children,” by Bellinger et al., Journal of the American Medical Association, Vol. 295, No. 15). Use a 0.05 significance level to test for independence between the type of restoration and the presence of any adverse health conditions.
Do amalgam restorations appear to affect health conditions?
Amalgam Composite Adverse Health Condition Reported 135 145 No Adverse Health Condition Reported 132 122