Do fillings have to kill the nerve?

Dental nerve treatment can be used to treat dental caries. If the dental caries is shallow and the bacterial infection does not reach the dental nerve, then the dental nerve is not exposed before or during the removal of decay. If the bacterial infection causes inflammation of the dental nerve, or the dental nerve is exposed during the process of decaying, that is to say, the dental nerve has been exposed without removing the decayed part. In this case, the dental nerve has been infected, so it is necessary to kill the dental nerve and perform root canal treatment of the tooth.