Teeth with pulp chambers relatively small and have constriction of the pulp chamber approximately at the CEJ are called as:
## Core Concept
Teeth with specific anatomical features in their pulp chamber are being described. The question pertains to dental anatomy, focusing on the morphology of the pulp chamber in relation to the cemento-enamel junction (CEJ). The CEJ is a critical anatomical landmark that marks the boundary between the enamel of the crown and the cementum of the root.
## Why the Correct Answer is Right
The correct answer, **C. Taurodontic teeth**, refers to teeth that have a unique characteristic: their pulp chamber is displaced apically, resulting in a shorter root and a larger body of the tooth. This displacement leads to a constriction of the pulp chamber approximately at the CEJ, and the pulp chamber appears relatively small. This anatomical variation can complicate dental procedures such as root canal treatment.
## Why Each Wrong Option is Incorrect
- **Option A:** This option is incorrect because it does not specify a recognized dental anatomical term related to the description provided.
- **Option B:** This option is incorrect as it also does not correspond to a known dental term that matches the description of teeth with pulp chambers that are relatively small and constricted at the CEJ.
- **Option D:** This option is incorrect because it refers to another term that does not accurately describe teeth with the specified pulp chamber characteristics.
## Clinical Pearl / High-Yield Fact
A key point to remember is that **taurodontic teeth** have a distinctive morphology with the pulp chamber located more apically, which can make access to the pulp chamber for root canal therapy more challenging. Recognizing this tooth variation is crucial for successful dental treatment planning.
## Correct Answer: C. Taurodontic teeth