The minimal labial tooth reduction for satisfactory aesthetics with porcelain fused to metal crown is,
A. 1mm
B. The full thickness of enamel
C. 1.5 mm
D. 2.5mm
E. One third of the dentine thickness
A. 1mm
B. The full thickness of enamel
C. 1.5 mm
D. 2.5mm
E. One third of the dentine thickness