Amalgam (dentistry) can cross the placenta leading to stillbirths and birth defects. A combination of mercury and non-ionizing radiation has been suggested as a factor in the recent increase in reported autism spectrum disorders. It has been reported that there is a positive correlation between the maternal and cord blood mercury levels. Although there is no evidence linking amalgam use and pregnancy damage, it is advisable to delay or avoid dealing with amalgam fillings in pregnant patients. Dentists are urged by some to consider the selection of restorative material more seriously and avoid using amalgam when possible. The dental operating team should
Amalgam (dentistry) by using database in the Cochrane Library where randomized controlled trials of few studies comparing dental resin composite with dental amalgams in permanent posterior teeth were compared. This review supports the fact that amalgam restorations are particularly useful and successful in parts of the world where amalgam is still the material of choice to restore posterior teeth with proximal caries. Though, there is insufficient evidence to support or refute any adverse effects amalgam may have on patients, new research is unlikely to change opinion on its safety and due to the decision for a global phase-down of amalgam (Minamata Convention