A large exposure of pulp within 24 hours is treated by
**Question:** A large exposure of pulp within 24 hours is treated by
A. Pulpotomy
B. Pulpectomy
C. Root canal therapy
D. Crown lengthening
**Correct Answer:** C. Root canal therapy
**Core Concept:** Pulp is the vital tissue found within the root canal of a tooth, providing nutrition and responsiveness to stimuli. When the pulp is exposed, either due to caries or trauma, prompt treatment is essential to prevent infection and subsequent tooth loss.
**Why the Correct Answer is Right:** In this scenario, a large exposure of pulp occurs within 24 hours, indicating acute inflammation and potential infection. Root canal therapy (C) is the most appropriate treatment as it involves accessing and thoroughly cleaning the root canal system to remove the infected pulp tissue, disinfect the canal, and then obturate (fill) it to prevent further contamination. This prevents the spread of infection and promotes healing.
**Why Each Wrong Option is Incorrect:**
A. Pulpotomy (A) is indicated when caries has reached the dentin but not the pulp. It involves removing the affected dentin and pulp tissue, leaving the healthy pulp intact. In this case, pulpotomy would not be suitable as the pulp is severely compromised and infected.
B. Pulpectomy (B) is performed when pulp necrosis (death) has occurred, and the root canal is filled without removing the pulp tissue. In this scenario, pulpectomy is not the correct answer because the pulp is already necrotic, and removing it is essential to prevent ongoing inflammation and infection.
D. Crown lengthening (D) is a surgical procedure to expose more tooth structure for restorative purposes. It is unrelated to pulpal exposure and infection and does not address the pulp issue.
**Clinical Pearl:** In acute pulpitis cases, prompt treatment with root canal therapy is crucial to prevent complications like abscess formation, periapical inflammation, and tooth loss. Always consider the stage of pulp involvement (dentin or pulp) when choosing the appropriate treatment option.