What does "plaque" primarily consist of?

Plaque primarily consists of bacteria, saliva, and food debris. This is because plaque forms when bacteria in the mouth adhere to the surfaces of teeth, producing a sticky biofilm. These bacteria thrive on sugars and carbohydrates from food debris, which is why oral hygiene is crucial for preventing plaque accumulation. Saliva also plays a significant role, as it contains proteins and minerals that contribute to plaque formation and provides a medium for bacterial growth. Regularly brushing and flossing helps disrupt this biofilm and remove the food particles, thereby controlling plaque buildup and reducing the risk of dental diseases such as caries and periodontal disease.