Cavities in primary teeth are getting deeper faster than the permanent ones. When the cavity reaches the nerve tissue, it causes severe pain and prevent your child from eating and sleeping. First method of treatment for primary teeth caries is root canal treatment.

Having the tooth out considering it is a temporary tooth is fallacious. Primary teeth save their area for the permanent tooth and guide its way to erupt. An early loss of a primary tooth will lead to improper eruption of permanent teeth and development disorders in jaw bone. 

In root canal treatment in primary teeth; filling material which is going to be placed in the root should be able to dissolve along with the root of the primary teeth during the eruption of permanent teeth. That is why the material used in primary teeth root canal treatment is different than the traditional one and is special.