What technique should be used when removing cement from the gumline?

The technique of using lateral motion away from the gumline is the correct method for removing cement from the gumline because it minimizes trauma to the surrounding soft tissues, particularly the gums. This motion ensures that the instrument is moved in a direction that helps lift the cement away from the soft tissue attachment, reducing the risk of damaging gum tissue or aggravating inflammation.

When the cement is removed laterally away from the gumline, the chances of pushing debris or remaining cement into the gum tissue are significantly decreased. This helps maintain oral health and ensures that the patient experiences minimal discomfort during the procedure.

In contrast, other techniques such as downward vertical motions or lateral movements toward the gumline could lead to increased chances of gum irritation or injury. Similarly, using a rotational motion around the tooth might not be as efficient in cleanly dislodging cement and may also risk harming the gums or enamel if not done with great care. Therefore, the lateral motion away from the gumline is the most effective and safest technique for removing cement.