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Dr. Parvez A. Khan

Authors : Dr. Parvez A. Khan

Dentin hypersensitivity may affect individual quality of life. Over time, the dentin-pulp complex may adapt to the decreased insulation by laying down tertiary dentin, thereby increasing the thickness between the pulp and the exposed dentin surface and lessening the symptoms of hypersensitivity. Similar process such as formation of a smear layer (e.g. from tooth brushing) and dentin sclerosis. These physiologic repair mechanisms are likely to occur with or without any form of treatment, but they take time .

Many treatments are used for dentinal hypersensitivity like Nerve desensitization by potassium nitrate , Protein precipitation by glutaraldehyde or silver nitrate , Plugging dentinal tubules using sodium or stannous fluoride ,using dentinal adhesives like resins ,using Lasers. There is no universally accepted, gold-standard treatment which reliably relieves the pain of dental hypersensitivity in the long term, and consequently many treatments have been suggested which have varying degrees of efficacy when scientifically studied.

Generally, they can be divided into in-office (i.e. intended to be applied by a dentist or dental therapist), treatments which can be carried out at home, available over the counter or by prescription.OTC products are more suited for generalized, mild to moderate dentin hypersensitivity associated with several teeth, and in-office treatments for localized, severe DH associated with one or two teeth. Non-invasive, simple treatments which can be carried out at home should be attempted before in-office procedures are carried out.

The purported mechanism of action of these treatments is either occlusion of dentin tubules (e.g. resins, varnishes, toothpastes) or desensitization of nerve fibres /blocking the neural transmission (e.g. potassium chloride, potassium citrate, potassium nitrate).Gingival recession and cervical tooth wear can be avoided by healthy dietary an oral hygiene practices. By using a non-traumatic tooth brushing technique (i.e. a recommended technique such as the modified Bass technique rather than indiscriminately brushing the teeth and gums in a rough scrubbing motion) will help prevent receding gums and tooth wear around the cervical margin of teeth. Non-abrasive toothpaste should be used, and brushing should be carried out no more than twice per day for two minutes on each occasion.

Excessive use of acidic conditions around the teeth should be avoided by limiting consumption of acidic foods and drinks, and seeking medical treatment for any cause of regurgitation/reflux of stomach acid. Importantly, the teeth should not be brushed immediately after acidic foods or drinks. A non-abrasive diet will also help to prevent tooth wear. Flossing each day also helps to prevent gum recession caused by gum disease. At-home treatments include desensitizing toothpastes or dentifrices potassium salts, mouth washes and chewing gums. A variety of toothpastes are marketed for dentin hypersensitivity, including compounds such as strontium acetate , arginine, calcium carbonate, hydroxyapatite and calcium sodium phosphosilicate .


Dr. Parvez A. Khan
Dr. Parvez A. Khan