What is a potential reason for increased sensitivity in patients after coronal polishing?

Increased sensitivity in patients after coronal polishing is often attributed to overzealous polishing or the use of abrasive agents. During coronal polishing, dental professionals use a rotating rubber cup with a paste that may contain varying degrees of abrasiveness. If the polishing technique is too aggressive or if an overly abrasive paste is used, it can remove not only plaque but also a thin layer of enamel or dentin. This removal can expose the underlying nerves and lead to heightened sensitivity, especially to temperature changes or certain foods.

The other options address factors that may cause sensitivity but are less directly related to the polishing process. For example, the use of fluorides post-polishing is typically intended to minimize sensitivity and strengthen enamel. Similarly, the adjustment of dental appliances may lead to temporary discomfort but is not directly linked to coronal polishing. Exposure to hot foods immediately after polishing can cause discomfort but is not a primary reason for increased sensitivity related to the technique of polishing itself.