If teeth have large cavities, especially if you've never been sick. The problem will be completed by coming to the dentist and asked that the tooth will be revoked only. Or, when it does not hurt anymore be left it or no complaints, it means has healed. But actually not like that.
Cavities will cause throbbing pain when reaches the pulp chamber whose contents is a of nerves network and blood vessels. If untreated, infection can spread to tissue under the tooth and cause an abscess. Abscesses containing pus, and causes swelling in the gums. In certain cases this can be very large abscess until cheeks become swollen. Tooth that sick and suffered abscesses may not be immediately revoked because of infections that occurred were in the acute phase. The pain and abscesses must be first appeased by taking antibiotics as prescribed.