Sealants, Fillings and Crowns
Sealants can be applied on some teeth, after the age of six, to reduce the likelihood of a cavity forming on them. A layer of glue is applied to any grooves on the surface of the tooth to seal it off from any food and bacteria.
In the event of a cavity, a filling would be required to correct the problem. In cases of larger cavities or in teeth with root canals, a crown may be recommended by the dentist to protect the remainder of the tooth.
In cases where the nerve of the tooth has been irritated, like in a case of a deep cavity, the nerve inside the tooth may begin to die. This leads to a tooth abscess. Instead of removing the tooth, root canal treatment may be performed in order to save the tooth.