When a tooth is affected by the decay process and is not treated on time, a sizeable portion of the tooth structure is lost.This weakens the tooth . The possibilities of the tooth getting fractured or “cracked”is high.
When the outer hard tissues of the tooth are cracked, chewing can cause movement of the pieces, and the pulp can become irritated. Eventually, the pulp will become damaged to the point that it can no longer heal itself.
The tooth will not only hurt when chewing but may also become sensitive to temperature extremes. In time, a cracked tooth may begin to hurt all by itself. Extensive cracks can lead to infection of the pulp tissue, which can spread to the bone and gum surrounding the tooth.