![]() ![]() In most cases, tartar starts to accumulate on the lingual (inside) surface of the bottom front teeth (incisors) and on the outside of the upper, anterior molars. Look for yellowish and rough areas along the gumline and between teeth. Sub-gingival calculus - Calculus formation below the gums is more dangerous as it forms pockets between teeth and gums, harboring plaque under the gum margin and preventing it from being brushed off.Ĭontrary to dental plaque that is an almost invisible thin layer, supra-gingival dental tartar deposits are easier to detect.Supra-gingival calculus - Calculus above the gum margin is the most common and less harmful type as it is visible and can be easily detected.These repeating cycles of acid production, calcium loss and calcium phosphate deposits result to the build-up of new calculus layers on teeth. The roughened surface of dental calculus, in combination with the acids produced by plaque bacteria, provide an ideal medium for further accumulation and growth of dental plaque. ![]() Its main ingredient is calcium phosphate, a hard insoluble material that adheres to the tooth enamel.ĭental calculus makes rough the surface of the teeth crown and roots, allowing more bacteria and minerals to attach much more easily on the existing plaque. This hardened structure is dental calculus. These create an acidic environment in the mouth causing the loss of calcium from the tooth enamel (demineralization).Ĭalcium, phosphorus and other minerals from saliva are absorbed into dental plaque and harden its structure. The anaerobic bacteria of dental plaque produce acids as a by-product of their metabolism.
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