The clamp is designed to fit on which third of the tooth?

The correct choice is based on the understanding of the anatomical structure of the tooth and the role of the clamp in dental procedures, particularly in restorative dentistry. The cervical area of the tooth refers to the region near the gum line, where the crown of the tooth meets the root. This area is significant because it is where the clamp is most effective in creating a stable and secure grip.

When a clamp is placed in the cervical third, it provides optimal control and access while minimizing the risk of damaging the tooth's structure or the surrounding soft tissues. Additionally, securing the clamp in this area ensures that the isolation provided during procedures—such as restorative work—is effective, helping to keep the operative field dry and free from contamination.

The other areas mentioned—incisal, middle, and apical—do not provide the same level of effectiveness for clamp placement. The incisal third refers to the biting edge of the tooth, which is not conducive to clamp support. The middle third could potentially provide support but lacks the stabilizing characteristics that the cervical area offers. The apical third is related to the root and is not involved in the procedures that require a clamp for isolation and support of the crown. Therefore, placing the clamp in the cervical third is optimal for achieving