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The dental pellicle, or acquired pellicle, is a protein film that forms on the surface enamel, dentin, artificial crowns, and bridges by selective binding of glycoproteins from saliva that prevents continuous deposition of salivary calcium phosphate. It forms in seconds after a tooth is cleaned, or after chewing.
An acquired pellicle is a layer of saliva that is composed of mainly glycoproteins and forms shortly after cleaning of the teeth or exposure of new teeth. [7] Bacteria then attach to the pellicle layer, form micro-colonies, and mature on the tooth, which can result in oral diseases.
It can be found in various products which include chewing gums and lozenges. Xylitol has been found to reduce mutans streptococci in plaque and saliva and reduce the binding of these to the acquired enamel pellicle. [10] This in turn leads to less adherent plaque and a decrease in acid production. [10]
It is this adherence to non-shedding surfaces that allows bacteria in a dental biofilm to have unique characteristics of clinical significance. The stages of biofilm formation: Formation of an acquired pellicle: involves selective absorption of salivary and GCF molecules through an electrostatic affinity with hydroxyapatite .
Like any other bone in the human body, alveolar bone is modified throughout life. Osteoblasts create bone and osteoclasts destroy it, especially if force is placed on a tooth. [ 38 ] As is the case when movement of teeth is attempted through orthodontics using bands, wires, or appliances, an area of bone under compressive force from a tooth ...
The high mineral content of enamel, which makes this tissue the hardest in the human body, also makes it demineralize in a process that often occurs as dental caries, otherwise known as cavities. [13] Demineralization occurs for several reasons, but the most important cause of tooth decay is the ingestion of fermentable carbohydrates.
The development of biofilm begins with pellicle formation. Pellicle is an acellular proteinaceous film which covers the teeth. Bacteria colonize on the teeth by adhering to the pellicle-coated surface. Over time, a mature biofilm is formed, creating a cariogenic environment on the tooth surface.
Pellicle (biology), a thin layer supporting the cell membrane in various protozoa; Pellicle mirror, a thin plastic membrane which may be used as a beam splitter or protective cover in optical systems; Pellicle (dental), the thin layer of salivary glycoproteins deposited on the teeth of many species through normal biologic processes