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What type of mass does materia alba represent in the mouth?

A hard mass of calcium

An unstructured mass of food debris and bacteria

Materia alba is best described as an unstructured mass of food debris and bacteria found in the mouth. This soft, whitish accumulation typically forms at the gumline and can easily be removed through oral hygiene practices such as brushing and flossing. It is not considered a hardened substance like tartar or plaque, which are more structured deposits that require professional cleaning to remove. Materia alba can contribute to poor oral health if not properly cleaned, as it may harbor bacteria that can lead to dental issues such as decay and gum disease. The nature of materia alba makes the understanding of oral hygiene even more critical, as it underscores the importance of regular cleaning to maintain oral health.

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A liquid mass of enzymes

A hard deposit of plaque

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