Aesthetic---the colour and translucency can match the natural teeth
The material is not easily stained
Hard and high in wear resistance
Disadvantage
Brittle and suitable for non-stress bearing area only
Certain thickness of tooth substance has to be removed in order to provide enough bulk of the material
Application
Tooth veneer or crown
To restore teeth with high aesthetic requirement, especially the front teeth
Procedures
for porcelain laminate veneer
A thin layer of tooth substance is removed from the facial surface of the tooth.
Impressions of the upper and lower teeth are taken and the bite registration is recorded.
The veneer is fabricated in the dental laboratory.
Tooth
surface is cleaned before bonding the veneer.
Tooth surface is etched and treated with diluted acid such as 30% phosphoric acid.
The
veneer is bonded onto the tooth.
Procedures for porcelain crown
A layer of tooth substance is removed.
Impressions of the upper and lower dental arches are taken and the bite registration is taken. The prepared tooth will be protected by a temporary crown.
The porcelain crown is fabricated in the dental laboratory.
Temporary crown is removed and the tooth surface is cleaned.
