PATHOLOGY

Detailed explanation-1: -An X-ray of the aching tooth can help identify an abscess. Your dentist may also use X-rays to determine whether the infection has spread, causing abscesses in other areas. Recommend a CT scan. If the infection has spread to other areas within your neck, a CT scan may be used to see how severe the infection is.

Detailed explanation-2: -A periapical tooth abscess usually occurs as a result of an untreated dental cavity, an injury or prior dental work. The resulting infection with irritation and swelling (inflammation) can cause an abscess at the tip of the root. Dentists will treat a tooth abscess by draining it and getting rid of the infection.