Is coronal polishing necessary before applying topical fluoride? Why?

The application of topical fluoride is designed to enhance the remineralization of enamel and provide protection against caries. While it's true that fluoride can penetrate through the pellicle and any plaque present, having a clean surface is always ideal for optimal fluoride absorption.

The understanding behind this practice highlights that polishing may not be strictly necessary due to fluoride's ability to work despite the presence of some plaque. However, a clinical setting typically aims for the best conditions; thus, the application of fluoride on a surface that may have debris could potentially diminish the effectiveness of fluoride treatment.

While it is beneficial to maintain good oral hygiene, the primary reasoning for selecting the correct option involves recognizing that fluoride does penetrate through the biofilm in the mouth, suggesting that polishing is not an absolute requirement before applying fluoride treatment.