How should the polishing paste be applied to the tooth surface?

Applying polishing paste to the tooth surface in a circular motion using light pressure is the correct technique because it minimizes the risk of enamel abrasion while effectively cleaning and polishing the teeth. This method allows for even distribution of the paste across the tooth surface, enhancing the overall polishing effect without damaging the enamel. The circular motion helps to follow the natural contour of the tooth, ensuring thorough cleaning and avoiding missed areas.

Using light pressure is essential because too much pressure can lead to excessive wear on the enamel or even damage to the gum tissue, which could result in sensitivity or other issues. Balancing the motion and pressure is crucial for maintaining the integrity of the tooth while achieving a clean, polished surface.

Other techniques, such as applying the paste in a straight line with firm pressure, could increase the risk of enamel abrasion, while spraying the paste directly onto the teeth may not allow for controlled application and could lead to uneven polishing. Using a spatula for distribution lacks the essential action of polishing that is achieved through the appropriate motion and pressure on the tooth surface. Thus, the correct method is the one that optimally combines a gentle approach with effective cleaning.