Australian Dental Council (ADC) Test 2025 – 400 Free Practice Questions to Pass the Exam

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Question: 1 / 1390

What is the MOST common cause of gingiva irritation?

Calculus

Plaque

Plaque is identified as the most common cause of gingival irritation due to its role in periodontal disease. This biofilm, which consists of bacteria and their byproducts, forms on the teeth and gums when oral hygiene is inadequate. As plaque accumulates, it irritates the gingival tissues, leading to inflammation known as gingivitis. The bacteria in plaque produce toxins that directly affect the gingival tissue, resulting in symptoms such as redness, swelling, and bleeding upon probing.

While calculus can contribute to gingival irritation, it is essentially mineralized plaque that has been present for a period of time. Caries and restorative materials can also impact oral health, but they are not the primary factors leading to gingival irritation compared to plaque accumulation. Thus, plaque's role in the onset of gingival disease highlights its significance as the most common irritant to the gums.

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Caries

Restorative material

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