What distinguishes threading neck technique from mouth technique?

• A. The neck acts as the support that holds the thread taut.
• B. The thread is anchored to the teeth.
• C. It uses a needle instead of thread.
• D. It uses wax strips.

Answer: (A)

The key idea is how tension on the thread is maintained. In the neck technique, the neck serves as the anchor that keeps the thread taut while you work, giving stable control without using the mouth. In the mouth technique, the thread is held between the teeth to keep it taut, which changes the grip and hygiene dynamics. The other options aren’t accurate for threading: a needle isn’t used, and wax strips aren’t part of threading. The thread being anchored to the teeth describes the mouth technique, not the neck technique.