Why is it important to use a slow-speed handpiece during coronal polishing?

Using a slow-speed handpiece during coronal polishing is essential to decrease the risk of discomfort for the patient. The slower speed allows for better control over the polishing instrument, reducing the potential for overheating the tooth surface and the pulp, which can lead to sensitivity or pain during the procedure. This controlled speed also helps in achieving a smooth and even polishing action without applying excessive pressure that might cause discomfort or damage to the enamel.

In contrast, using a high-speed handpiece might increase the likelihood of sensitivity or discomfort, as the rapid movement can generate heat and create a more aggressive polishing effect. By prioritizing patient comfort, dental professionals can ensure a more positive experience during coronal polishing while effectively maintaining the health and appearance of the patient's teeth.