The recommended clamp for class-V tooth preparation is
**Core Concept**
The recommended clamp for class-V tooth preparation is crucial in maintaining the structural integrity of the tooth and ensuring optimal retention of the restoration. A suitable clamp helps in preventing the tooth from breaking or fracturing during the preparation and restoration process.
**Why the Correct Answer is Right**
The correct clamp for class-V tooth preparation is a **rubber dam clamp**. This clamp is specifically designed to fit around the tooth, providing a secure grip without causing damage to the tooth structure. The rubber dam clamp is essential in preventing contamination and maintaining a dry field during the procedure. It also helps in controlling the tooth movement and preventing any accidental displacement of the tooth.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because it is not a commonly used clamp for class-V tooth preparation. The use of this clamp may lead to tooth damage or fracture.
**Option B:** Incorrect because it is typically used for more extensive procedures, such as crown preparations, and may not provide the necessary support for class-V tooth preparation.
**Option C:** Incorrect because it is not specifically designed for class-V tooth preparation and may not provide the required level of support and stability.
**Clinical Pearl / High-Yield Fact**
To ensure optimal retention of the restoration and prevent tooth fracture, it is essential to use the recommended clamp for class-V tooth preparation. A rubber dam clamp is the preferred choice due to its ability to provide a secure grip without causing damage to the tooth structure.
**Correct Answer: A. Rubber dam clamp**