Sammanfattning
Dental ceramics can be divided in different groups depending on the chemical composition,
manufacturing technology or intended use based on the material properties. Differences between the
ceramic groups are large and the indication areas overlap only to a very limited extent.
Roughly divided, is porcelain the most aesthetic material, that offers the greatest opportunity to
mimic natural tooth structure, while yttrium dioxide stabilized tetragonal zirconium dioxide
polycrystals (Y-TZP) is the most resistant and toughest ceramic but with aesthetic limitations
compared to other ceramics. There have been further material development with more translucent
zirconiumdioxide, so called monolithic or semi-monolithic translucent zirconium dioxide. Ceramics
as lithium disilicate and zirconia reinforced lithium silicate are in between porcelain and Y-TZP, with
very good aesthetic potentials and intermediate properties regarding strength and toughness.
Adhesive cementation techniques promote preservation of dental tissue and rely on micromechanical
and chemical retention and are for most all-ceramic reconstructions essential to reinforce the
material enabling it to resist the forces they are subjected to. In order to achieve an optimal bonding
that is durable it is preferable for the preparation to be completely in enamel. A successful
cementation is also dependent on the proper handling of materials and surface treatment including
etching and silanization of the entire cementation surface, all the way to the margin line.
There is a large number of options and combinations in terms of all-ceramic materials and adhesive
cementation systems. The following chapter provides a summary of different ceramics and methods
recommended to adhesive cementation, both in the laboratory and in the clinic.