Which of the following statements about desensitizing agents is true?

Desensitizing agents play a crucial role in dental care by addressing discomfort that patients may experience during dental procedures. These agents work by occluding dentinal tubules or by desensitizing the nerves in the affected area, which aids in reducing sensitivity and discomfort during treatments such as cleanings, fillings, or other restorative work.

Although desensitizing agents can have some benefits in postoperative care, their primary function is to alleviate discomfort during dental processes, making the correct statement regarding their role. The other options, while related to dental practice, do not accurately reflect the main purpose of desensitizing agents. They do not actively strengthen enamel (as stated in the second option), nor are they only effective after a procedure or primarily used in orthodontics.