Edge joint is required in manufacturing of full ceramic teeth with fine margin sealing property. It can effectively solve problem of bad sealing property of traditional false teeth.
For full ceramic teeth, there is no metal base crown. Therefore, it can avoid problems of metal sensitivity and black line on gingival. And it has no toxic and side effect on human health.
It has fine transparence and gloss. It is close to natural teeth. There is no worry on crash. 
Porcelain material has features of wear resistance, crush resistance, no color change. However it has disadvantages of high frangibility. In using of porcelain prosthesis, please avoid of superhard food, such as, broad bean and melon seeds.