Predoctoral enrollment was at its highest level during the late 1970s/early 1980s, with peak enrollment of 22,842 in the 1980/81 academic year. Since the early 1990s, first-year predoctoral enrollment has risen an average of 1.1% annually.
Newer kinds of fillings made from composite resins and porcelain can restore unsightly fillings; because of concerns about the mercury content of amalgam fillings, this practice does not use amalgam.
