Australian Dental Council (ADC) Test 2026 – 400 Free Practice Questions to Pass the Exam

Rubella, also known as German measles, is a viral infection that occurs primarily with systemic symptoms such as fever and rash, and it does not have characteristic oral prodromal signs in the same way that some other infections do. For instance, Koplik spots are specifically associated with measles and are not related to rubella; these are small white spots located on the buccal mucosa. Fordyce's spots, which are ectopic sebaceous glands, are normal anatomical variations found in the oral cavity and are not indicative of any infectious process, including rubella. Geographic tongue is also not associated with rubella; it refers to a benign condition characterized by irregular patches on the tongue's surface.

Due to the absence of specific oral manifestations linked to rubella infection, the correct response is that none of the options provided represent oral prodromal signs related to this condition. This highlights the importance of understanding differentiating characteristics of diseases and their clinical presentations.