The Unstimulated Salivary Flow Rate in a Jordanian Healthy Adult Population

Faleh A. Sawair, Soukaina Ryalat, Mohammad Shayyab, Takashi Saku

Abstract


Background: Early diagnosis of xerostomia is very important for oral health. The purpose of this study was to determine the unstimulated whole salivary flow rates (UWSFR) in a Jordanian Arab population aged 15 years and older. The effect of age, gender, height, weight, body mass index (BMI), smoking, alcohol consumption, and dental conditions, on UWSFR was also investigated.

Methods: The study was conducted on 244 subjects, 110 males and 134 females, with an average age of 33 + 15.5 years. They were healthy, unmedicated, and with no history of dry mouth. Unstimulated whole saliva was collected during five minutes, and UWSFRs (ml/min) were determined. Data were analyzed by univariate analysis and multivariate regression analysis.

Results: The mean UWSFR was 0.46 + 0.25 ml/min (range: 0.10-1.6 ml/min). Eighteen patients (7.4%) had UWSFR between < 0.20 ml/min. In univariate analysis, UWSFR was significantly affected by age, BMI, number of missing and restored teeth, and DMFT score. Regression analysis revealed that only age and number of missing teeth were of significance in explaining the variability of the UWSFR.

Conclusions: We established basic standard values of UWSFR to be used in the evaluation of Jordanian patients with complaints of xerostomia and to be compared to data reported in other studies. UWSFR 0.1 ml/min could be considered the cut-off value that distinguishes normal from abnormal salivary function in this healthy unmedicated population.




doi:10.4021/jocmr2009.10.1267


Keywords


Whole saliva flow rate; Unstimulated; Jordan

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