What you should know about dental plaque
Dental plaque refers to a film that is constantly forming. This film is secreted by oral bacteria around the mouth. It is a clear, sticky, colorless film that later solidifies into a pale yellow or brown deposit and settles on the teeth, gums, and gum line. It is often deposited below the gum line. When it has hardened, it is called calculus or tartar. Bacteria then grows under the calculus and infects the gum and periodontal tissue. This leads to inflammation of the gums and other periodontal diseases. The dead tissue is often seen on the affected teeth as black or brown patches. This condition is called caries or tooth decay. It is important to understand how plaque forms in order to control its growth. Within hours after brushing, a layer of saliva comprising glycoproteins is formed. This layer is called a pellicle. Bacteria start attaching to the pellicle and form microcolonies. This can cause oral diseases. Since the pellicle is constantly formed, the bacteria cover the entire mouth and proliferate. Due to this, microcolonies are formed all over the mouth. Plaque normally contains oral bacteria and has leukocytes, macrophages, lymphocytes, and Neutrophils. These comprise the normal bacterial population of the mouth and contribute to oral health.