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) problem. This phase has been shown to be the weakest phase in the set amalgam and is subject to corrosion, particularly at the tooth-amalgam interface. In 1962 a new amalgam alloy, called Dispersalloy, was introduced with the addition of a spherical silver-copper eutectic particle to the traditional lathe-cut AgSn particle in a ratio of 1:2. The mixture of these two types of particles is known as admix alloy. The benefits of this alloy was to strengthen the set amalgam and reduce the γ phase (SnHg). The increased copper in the silver-copper eutectic reacted preferentially with tin so that SnHg could