Dental pain elicited by percussion, a diagnostic technique involving gentle tapping on a tooth, often signals underlying inflammation or infection. The sensation, ranging from mild discomfort to sharp pain, arises when the applied force stimulates the nerve fibers within the tooth and surrounding tissues. For example, a tooth with a periapical abscess, an infection at the root, will typically be sensitive to tapping.
The presence of pain upon percussion is a significant indicator for dental professionals as it aids in pinpointing the source of discomfort and guides treatment planning. This diagnostic clue helps differentiate between various dental conditions, such as pulpitis, periapical periodontitis, or cracked tooth syndrome. Historically, percussion has been a cornerstone of dental examination, offering a simple yet effective method for assessing tooth vitality and identifying areas of concern.