What is Dentin Sensitivity and how does it occur?

The top layer of our teeth is the hard and crystalline enamel layer. Beneath the enamel are dentin tissue, a living tissue containing channels called tubules, odontoblast cells, and dentin lymph fluid, like softer brick ducts. Intense acidic foods and a hard toothbrush with the concern of cleaning and whitening the teeth, if the teeth are not brushed properly with hard movements, there will be abrasions in the enamel over time, intense and long-lasting processes in the professional teeth whitening process, not cleaning the mouth after excessively acidic foods, demineralization of the teeth and erosion of the enamel, followed by dentin. sensitivity occurs. In some women, due to the obsession with gaining weight, called Blumia, there is a disease of vomiting, the parotid glands enlarge in the bloom, especially on the palatal posterior surfaces of the upper teeth, erosions called Perimyolysis occur due to the continuous exposure of the enamel and dentin to the stomach acid. In order to prevent this erosion, the patient wants to clean harder and more frequent teeth, and the result is tooth sensitivity. People with bruxism who grind their teeth also experience sensitivity due to abrasions. If there are crown fractures in teeth or teeth, undiagnosed interface caries, cracks reaching the crown or under the gingiva of the tooth, which we call cracked tooth syndrome, this sensitivity and sharp pain are evident. Carbamide peroxide is used to whiten teeth. If this substance is too concentrated and used for a long time, it may cause sensitivity in the pulp of the teeth due to hydrodynamic stimulation. Gingival recessions due to hard brushing, dehydration of the teeth during crown cutting, working with excessive pressure, abrasives in some toothpastes can also cause dentin sensitivity. The rapid movement of the fluid in the tubules with the stimuli during the operative procedures affects the nerve endings in the areas close to the pulp and sensitivity occurs. The dentin areas of the teeth that are exposed to erosion or abrasion lead to the inability to perform routine plaque control, because there is pain in the places where the toothbrush touches, patients do not want to clean these areas, as a result, they are exposed to gingival problems and tooth loss.


First, plaque control is taught. If sensitivity due to abrasion has occurred, toothpastes containing potassium nitrate, soft toothbrushes and appropriate tooth brushing techniques are taught. If there is perimyolysis due to blumia, the help of a psychologist is requested, acidic foods are recommended to be removed from the diet, because even if you block the channels, acidic foods and drinks cause re-dissolution and sensitivity, so dietary habits should be changed. Resin lacquers, sealants, strontium fluoride toothpastes, sodium fluoride mouthwashes, dentin bonding are used in treatment.
The most effective method for dentin sensitivity in roots is sodium fluoride iontophoresis. It is to precipitate and close the dentin canals with a very low battery current by means of a device. I wish you healthy teeth and gums. Specialist.Dr. GÜNGÖR KARAGÖZLÜ Gum Diseases and Surgery Specialist.

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