How long should rubber cup polishing be applied on each tooth to prevent damage?

The appropriate duration for rubber cup polishing on each tooth is 3-5 seconds. This time frame is recommended to effectively clean and polish the tooth surface without causing potential damage to the tooth enamel or gingival tissue. Prolonged application, especially beyond this time, can lead to over-polishing, which may wear down enamel and increase the risk for sensitivity or even damage to the underlying dentin.

Additionally, polishing with a rubber cup requires a balance; while it is important to provide sufficient time for effective cleaning and stain removal, care must be taken to avoid aggressive techniques that could adversely affect the tooth structure. This is why 3-5 seconds is the optimal range, allowing dental assistants to maintain a safe and effective polishing technique.