What is the significance of flexibility in the prophy cup during coronal polishing?

The significance of flexibility in the prophy cup during coronal polishing is crucial for ensuring effective and efficient polishing of the tooth surfaces. A flexible prophy cup can easily adapt to the varying contours and shapes of both anterior and posterior teeth. This adaptability allows the polishing cup to make consistent contact with the tooth surface, reaching all areas, including grooves and fissures, which might be challenging with a rigid cup.

When the prophy cup conforms to the tooth's shape, it enables uniform application of the polishing paste, enhancing the overall polishing results. This adaptability is particularly important in achieving a smooth and shiny surface after the procedure, which is a primary goal of coronal polishing. The correct choice emphasizes the essential role that flexibility plays in achieving thorough and effective polishing, ensuring optimal dental aesthetics and health.