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Treatment guidelines

Hyposalivation and Xerostomia

Key points

  • Saliva plays a significant role in the preservation and maintenance of oral health and function, as well as in patients’ ability to tolerate removable dentures
  • Hyposalivation can be caused by age-related decline in salivary gland function, dehydration, therapeutic medication, head and neck radiotherapy, some autoimmune disorders, metabolic disorders (diabetes) etc.
  • Xerostomia diagnosis is based upon patient history, especially complaints of nocturnal dryness, and oral examination
  • Typical symptoms comprise dry cracked lips, angular cheilitis, dry tongue, oral candidiasis, swallowing difficulties and reduced denture wearing comfort


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