PubMed · 11276594
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Facts about sensitive teeth.. https://pubmed.ncbi.nlm.nih.gov/11276594/
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"Sensitive pastes" are advertised for use by patients suffering from dentin hypersensitivity. Their market share is growing. Their potential of adverse mechanical side effects on dentin are consequently of concern. The aim of this study was to assess the cleaning efficiency, the relative dentin abrasion and the surface roughness induced by ten sensitive toothpastes of the Swiss market. Cleaning efficiency was assessed planimetrically, the relative dentin abrasion was measured using a radio tracer method and the surface roughness was established using a surface scanning method. Four out of the ten tested sensitive toothpastes produced only low abrasion and surface roughening on dentin, and are consequently suitable for the use by patients with dentin hypersensitivity. The remaining six pastes are too aggressive to warrant unlimited use on exposed dentin surfaces. The pain relieving effect of active ingredients of the toothpastes was not assessed.
Dentin hypersensitivity is not a new disease, more than a hundred years ago Gysi, later Brännström and many others were dealing with the problems of its symptoms, pathomechanism, differential diagnosis and therapy. The growing interest today maybe attributed to improving oral health, and to the presence of more teeth in older age, as a consequence of decreasing caries prevalence. The exposure of dentine surfaces due to gingival recession, erosion and abrasion may cause serious complaints, occurs in about 40% of the adult population, however, few of them turn to the dentist. Therefore, practising dentists should be aware of the possibilities of treatment, managing strategies and prevention. New aspects are the appropriate timing of toothbrushing after consumption of acidogenic, erosive foods and beverages, non-invasive (desensitizing, potassium-nitrate/fluoride containing toothpastes), and invasive (reconstruction with fillings, coverage of the exposed roots) treatment options. Continuous care of patients suffering in dentine hypersensitivity--in order to prevent more serious consequences (irritation of the pulp)--is advisable.