The material of porcelain teeth is harder and more fragile than enamel. All-ceramic teeth are slightly softer than porcelain teeth, harder and tougher than enamel. The color of all-ceramic teeth will not change during wearing, while porcelain teeth will.

The crack resistance of porcelain teeth is better than that of all-ceramic teeth.

Compared with porcelain teeth, the manufacturing process of all-ceramic teeth is relatively less, and the chances of making mistakes are relatively less.

The metal base crown of porcelain teeth, the thickness of porcelain layer, the conditions and times of porcelain teeth, colorant, surface texture, light source and other factors will affect the color. All-ceramic teeth, finished all-ceramic teeth contain color, and provide standard shade guide.

All-ceramic teeth are biocompatible, insoluble in acidic and alkaline substances such as saliva, and will not cause allergic reactions. However, due to the existence of metal base crown, there are metal allergies and metal micro-leakage.

All-ceramic teeth are mostly used for single crown, inlay, high inlay and veneer restoration of anterior teeth. Porcelain-fused-to-metal teeth can be used for fixed restoration with high strength requirements such as fixed bridge of posterior teeth.

The equipment for porcelain teeth is relatively simple and the cost is relatively low. The production of all-ceramic teeth requires special equipment, which is time-consuming and expensive, and the operators need special training.