How should the rubber cup be positioned on the tooth surface for effective polishing?

Positioning the rubber cup flat against the tooth surface is essential for effective polishing. This orientation allows for maximum contact with the enamel, enabling the polishing agent to evenly distribute and effectively remove plaque, stains, and debris. When the rubber cup is flat against the tooth, it can adequately conform to the contours of the tooth surface, providing a better finish and reducing the risk of damaging the tooth structure.

Utilizing a flat position also minimizes the possibility of applying unequal pressure, which is crucial to avoid any potential harm to the tooth or surrounding soft tissues. It is important to maintain a consistent and flat angle for the most effective outcome, ensuring that the polishing procedure is both thorough and safe. This technique allows practitioners to maximize the benefits of the polishing process while maintaining patient comfort and safety.