1. What is the acquired pellicle? 2. When does acquired pellicle start to form?

1. Thin acellular tenacious protein film that form over teeth. It forms as soon as salivary proteins (glycoproteins) come in contact with the tooth and they adheres to the tooth surface. It acts like "double sided sticky tape"- as well as adhering to the tooth’s surface on the inside, unfortunately it also allows bacteria to adhere on the outside of it. 2. Form within minutes after brushing teeth and is fully formed within 30-90 minutes. Can't rinse it away must be manually removed