DANB General Chairside Practice Test 2025 - Free Practice Questions and Exam Preparation Guide

A sudden, sharp pain when biting down is a common indication of a tooth fracture because it typically occurs when a fractured tooth has been subjected to pressure. When biting down, the uneven forces on the fracture can stimulate the nerve endings inside the tooth or cause the tooth structure to shift, leading to acute pain. This symptom is particularly characteristic of fractures that involve the enamel or dentin and can also suggest that the fracture may be severe enough to affect the pulp.

Other symptoms, while potentially associated with dental issues, may not specifically indicate a fracture. Sensitivity to hot or cold stimuli might be present due to other dental conditions such as pulpitis. A persistent dull ache could be more indicative of chronic dental issues like decay or gum disease. Swelling of the gums typically signals inflammation or infection rather than a fracture itself. Therefore, the sharp pain experienced upon biting down distinctly points to the presence of a tooth fracture.