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Brazilian Dental Journal

Print version ISSN 0103-6440


ALVES, Crésio; BRANDAO, Márcia; ANDION, Juliana  and  MENEZES, Rafaela. Use of graduated syringes for measuring salivary flow rate: a pilot study. Braz. Dent. J. [online]. 2010, vol.21, n.5, pp.401-404. ISSN 0103-6440.

The evaluation of the salivary flow rate is important in several situations of dental practice. However, weighing the collected salivary volume it is not a practical method in public health services. This work evaluated the use of hypodermic graduated syringes as a simpler alternative method to measure the salivary flow rate. Saliva samples were obtained from 50 individuals (31 females and 19 males) aged 8 to 32 years (mean age: 12.4 years), recruited at the outpatient dental clinics of two public health centers. After collection, the saliva was weighed in a graduated scale and the results compared with the volume obtained through its measurement, in mL, in graduated hypodermic syringes. There was a positive and significant relationship between the two methods of measuring salivary flow rates as demonstrated by the Pearson's correlation coefficient (r = 0.996, with p<0.05). Measurement of the salivary flow rate using graduated syringes demonstrated to be a reliable method, with lower cost and more practical than the traditional method of salivary weighing.

Keywords : saliva; oral health; sialometry; public health.

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