Final answer:
Applying topical fluoride immediately before a sealant procedure is false. Sealants should be applied first to a clean, dry tooth surface, and fluoride can be used after the sealant has cured.
Step-by-step explanation:
The statement is False. Topical fluoride is generally not applied immediately before a sealant procedure because fluoride can contaminate the etched surface, potentially interfering with the bond strength of the sealant. The proper protocol is usually to apply the sealant first to a clean, dry tooth surface. After the sealant has been placed and cured, fluoride may be applied thereafter to provide added protection against decay. Notably, the application of fluoride varnish after the sealant procedure has been shown to not affect sealant retention and might offer additional preventative benefits to the sealed tooth.