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

Erythema migrans is characterized as a benign condition commonly associated with geographic tongue, which involves patches on the tongue that can appear red and inflamed. It does not have the potential for malignancy, unlike the other listed conditions.

Leukoplakia and erythroplakia are known as potentially malignant lesions. Leukoplakia presents as white patches that can arise in the oral cavity and may have a risk of progression to cancer. Erythroplakia, on the other hand, usually manifests as red patches in the mouth, often indicating a higher risk for dysplasia or malignancy compared to leukoplakia.

Oral submucous fibrosis is a chronic condition that results in stiffened mucosa and is linked to an increased risk of oral cancer, making it a potentially malignant disorder as well.

In summary, the distinction lies in the nature of erythema migrans as a non-malignant condition that does not carry the same risks associated with the other lesions mentioned.