A loosely attached accumulation of bacteria that can be easily removed by mechanical actions is

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Materia alba is a loosely attached accumulation of bacteria that can be easily removed by mechanical actions such as brushing or rinsing. Biofilm and calculus are more tightly bound and require professional intervention for removal. Acquired pellicle is a thin, invisible film of saliva and proteins that forms on the tooth surface and serves as a protective layer.

A Loosely Attached Accumulation of Bacteria That Can Be Easily