What is the term for the filmlike deposit that can lead to tooth decay?

The term that refers to the filmlike deposit that can lead to tooth decay is plaque. Plaque is a sticky, colorless film that forms on the surfaces of teeth and is comprised primarily of bacteria, saliva, and food particles. When plaque is not removed through regular brushing and flossing, the bacteria in it can produce acids that attack tooth enamel, leading to cavities and other dental issues.

Understanding plaque is crucial for oral health since it serves as the primary contributor to tooth decay and gum disease. Regular dental hygiene practices, such as brushing twice a day and flossing daily, help to prevent plaque buildup. While terms like biofilm and tartar relate to dental health, plaque specifically denotes the early stage of bacterial accumulation that can directly cause decay if not addressed.