Why do I need a crown after a root canal? What kind of crown is good?

After root canal treatment, the tooth, commonly known as the "dead tooth", no pulp, lack of nutrient supply, its enamel will become brittle, withstand the force is far less than a healthy tooth, easy to break when eating. Therefore, it is necessary to do dental crowns, that is, to the teeth "wear a hat", can effectively prevent the teeth from cracking, to extend its service life.

The common dental crowns are mainly metal, porcelain, all-porcelain braces, as for what dental crowns are good, this is a matter of opinion, according to the patient's needs, only suitable for their own is the best.