We’ve all heard the phrase “the
gold standard.” It refers to something that’s a standard for excellence – the
best. For thousands of years, gold held that position among materials used in
dentistry. Today, however, alternatives have emerged that have exceeded that
extremely high standard.
One is an all-ceramic material known as e.max. E.max
crowns are made from blocks of lithium disilicate. This is an extraordinary
material – as tough and durable as gold but possessing a delicate translucency
that looks extremely natural. Moreover, the amount of translucency can
be varied to perfectly match the patient’s existing teeth.
To create an
e.max crown, the laboratory technician takes a block of the material and
presses it into a coping that gives it the right shape. Final processing
perfects the optical properties. Alternatively, computer-driven milling
machines can be used to sculpt the material. Such crowns include no metal, so
they never have an unsightly dark line around the base.
The e.max material can be used for crowns, veneers,
bridges, and other dental applications. Many common problems can be corrected with it: dental discoloration,
worn or uneven teeth, spaces between teeth, cracked or chipped teeth, and more.