A root canal might be needed if the cause of the toothache is determined to be an infection of the tooth's nerve. Bacteria that have worked their way into the inner aspects of the tooth cause such an infection. An antibiotic may be prescribed if there is fever or swelling of the jaw.
Definition of correspondence for Students. 1  1 : communication by means of letters or e-mail : the letters or e-mail exchanged. 2  2 : agreement between certain things Sometimes there is little correspondence between the spelling and the pronunciation of a word.
From Wikipedia, the free encyclopedia. Communication (from Latin commÅ«nicÄre, meaning to share) is the act of conveying intended meanings from one entity or group to another through the use of mutually understood signs and semiotic rules. The basic steps of communication are: The forming of communicative intent.