A twenty year old female patient comes to the clinic with discoloration of the upper right central incisor. This tooth was intact and otherwise asymptomatic. The common sequel following bleaching non vital teeth are:
**Core Concept**
The underlying principle being tested involves the management and potential complications of non-vital teeth, specifically the effects of bleaching on such teeth. Non-vital teeth are those that have undergone root canal treatment or have died due to trauma or decay. **Bleaching** non-vital teeth is a common procedure to improve their appearance, especially when they become discolored.
**Why the Correct Answer is Right**
Since the correct answer choice isn't provided, let's discuss the general concept. Bleaching non-vital teeth can lead to several sequelae, including external root resorption, tooth fracture, or further discoloration if not done properly. The most common issue, however, is likely related to the **cervical resorption** or **external root resorption**, which can occur if the bleaching agent penetrates to the root surface or if the tooth is not properly sealed.
**Why Each Wrong Option is Incorrect**
**Option A:** Without knowing the specific option, we can generally say that if an option suggests no risk or a very rare complication as the most common sequel, it would be incorrect.
**Option B:** Similarly, if this option proposes a benefit rather than a complication, it would not be the correct answer.
**Option C:** This might suggest a rare or unrelated complication, making it an incorrect choice.
**Option D:** Without the specific text, if this option does not align with known complications of bleaching non-vital teeth, it would be incorrect.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that before bleaching non-vital teeth, the tooth should be properly restored and sealed to prevent leakage of the bleaching agent into the periodontal tissues, which can cause **cervical resorption**. Regular follow-up is also crucial to monitor the tooth's condition.
**Correct Answer:** Correct Answer: D. Cervical resorption