LAYERS OF PFM

 CORE METAL : cast metallic framework. Also known as coping

 OPAQUE PORCELAIN :
o first layer consisting of porcelain modified with opacifying oxides.
o Mask the darkness of the oxidized metal framework
o metal-ceramic bond
o Initiate the colour

 Final buildup of DENTIN AND ENAMEL PORCELAIN
o Best tissue tolerated material
o Highly glazed layer *