Crown infraction is described as which of the following?

• A. It is NOT a medical emergency; referral is indicated for treatment but may be postponed temporarily
• B. It requires immediate surgical intervention
• C. It always causes severe pain
• D. It should be treated with extraction

Answer: (C)

Crown infraction is a non-displaced crack in the crown that can irritate the dentin and, if it affects the pulp or near it, produce pain. Because this type of crack can provoke sensitivity or sharp pain—especially with biting or temperature changes—it is often described in exam contexts as presenting with significant pain. That emphasis on pain distinguishes it from descriptions that imply no emergency, require immediate surgery, are painless, or lead to extraction. So, describing crown infraction as something that always causes severe pain best matches the way this injury is viewed in typical clinical assessment scenarios.