Risk factors, hyposalivation and impact of xerostomia on oral health-related quality of life Abstract: To determine xerostomia-related frequency, factors, salivary flow rates and Oral Health-Related Quality of Life

BackgroundTo determine the incidence and prevalence of salivary gland tumours in the province of Valparaíso, Chile.Material and MethodsRetrospective review of salivary gland tumours diagnosed between the years 2000 and 2011 from four local pathology services. Information on demographics and histopathology were retrieved from the medical records.ResultsThe study sample consisted of 279 salivary gland tumours. Prevalence and incidence rates per 100.000 persons were 15.4 and 2.51, respectively. Most of the neoplasms corresponded to benign tumours (70.3%). The most affected gland was the parotid gland. Pleomorphic adenoma was the most common benign tumour (53.8%) and mucoepidermoid carcinoma was the most common malignant tumour (7.2%).ConclusionsSalivary gland tumours are uncommon neoplasms that usually arise in the parotid gland. Pleomorphic adenoma and mucoepidermoid carcinoma were the most common benign and malignant tumours reported in this series. Key words:Salivary gland tumours, benign tumours, malignant tumours, salivary glands neoplasms, cancer, neoplasia.

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