AIPGDEE preparations B-IDS What all-ceramic porcelain system is strongest (in terms of flexural strength)?

What all-ceramic porcelain system is strongest (in terms of flexural strength)?
a. Traditional powder slurry ceramics
b. Infiltrated ceramics /slip-cast (In-Ceram)
c. Heat pressed ceramics (Empress)
d. Castable glass ceramics (Dicor)

B Infiltrated ceramics /slip-cast (In-Ceram)

Approximate flexural strength ranges for different ceramic systems (these vary according to tooth type position):

Porcelain fused to metal 300-500+ MPa (for comparison purposes)

Traditional slurry 80-140 MPa                     Infiltrated (slip cast) 450-600 MPa                            

Heat pressed 140-180 MPa            Castable 120 MPa                                           Machinable 120-230 MPa