Granuloma is a network formed by the translucent bacterial invasion of large cavities until it reaches the roots of the teeth. Initially, cavities only in enamel. It does not cause pains and generally will be ignored. Then the cavities will be widened to dentin and continues to pulp. The pulp is the innermost layer of the tooth. If cavities widened to pulp it will hurt because there are nerve fibers in the pulp. People tend to relieve pain complaints by taking drugs to relieve pain. Your dentist will also do premedication first, then the patient is asked to come back for treatment. Most patients do not return for treatment because they feel the pain is gone, so the process will be repeated and continuing infection. The process of repeated invasion and takes a long time is called chronic. Every time there is a bacterial invasion, the body will try to fight, trying to eliminate or localize the bacterial invasion that does not spread everywhere. This body resistance process called inflammation. In each area invaded by bacteria and intercepted by the inflammation will form new blood vessels that serve to transport oxygen and food in order to regenerate damaged tissue that bacteria can take place. To protect the new blood vessels that are still vulnerable before, formed granulation tissue composed of connective tissue. The granulation tissue called a granuloma.