Final answer:
The dentist prescribing a course of antibiotic therapy before and after dental surgery is an example of prophylaxis.
Step-by-step explanation:
The dentist prescribing a course of antibiotic therapy before and after dental surgery is an example of prophylaxis. Prophylaxis refers to the prevention or treatment of a disease or infection to prevent it from occurring or becoming worse. In this case, the antibiotics are given to prevent any potential infection that may occur during or after the surgery.