Dental Assistant State Licensing Examination (DASLE) Practice Exam

Question: 1 / 400

Where should the four points of a dental dam clamp rest?

Above the height of contour

At the gumline

Below the height of contour

The four points of a dental dam clamp should rest below the height of contour. This positioning is crucial because it ensures that the clamp securely grasps the tooth without slipping, providing stability during dental procedures. By resting below the height of contour, the clamp can effectively engage the tooth structure, which helps in achieving proper isolation of the treatment area while minimizing potential trauma to the gingival tissue.

Positioning the clamp above the height of contour risks instability, as the clamp may not be able to maintain a secure grip. Similarly, placing it at the gumline may lead to discomfort or damaging the surrounding soft tissue. Resting the clamp at the enamel line could also pose challenges related to retention and stability. Thus, the best practice is to ensure the clamp's points rest below the height of contour, providing both safety and effectiveness in the dental procedure.

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At the enamel line

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