Salivary salicylate secretion and flow rate.

Roberts, Andrea; Rumble, RH; Brooks, P. M.

doi:10.1111/j.1365-2125.1978.tb04607.x

Cited by 5 publications

(1 citation statement)

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“…As an outcome of the survey, 30 individuals were asked to rinse with deionized water, chew on a 2" × 2" piece of Parafilm (American National Can, Greenwich, CT), and expectorate all available saliva into a cup for 10 min [34]. All samples were collected between the hours of 2:00 pm and 3:00 pm as earlier studies had indicated some diurnal variation in saliva production and presumably composition [4,35,36].…”

Section: Sample Procurementmentioning

confidence: 99%

Rheology of stimulated whole saliva in a typical pre-orthodontic sample population

Kusy

Schäfer

1995

J Mater Sci: Mater Med

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The dynamic viscosity (t~) of stimulated whole saliVa in a typical pre-orthodontic sample population was characterized as a function of temperature (T). Samples were collected from 30 adolescents or young adults, after screening for factors that are known to have an effect on salivary viscosity. Using a cone and plate viscometer, 1.5 ml of stimulated whole saliva was evaluated at a constant shear rate of 450s -1 from T=20°C to T= 40°C. Data from the I~-T plots showed a negative dependence of the form, p = a-bT, over a range of I~ from 1.08 to 2.45 centipoise (cps) at 34 °C. Most of the samples fell into a narrow envelope, where the mean I~ of the saliva samples ranged from 2.42+0.61 cps at 20°C to 1.57_+0.32 cps at 37°C. With regard to sample stability, viscosity-time plots indicated that a small but predictable decrease in t~ occurred during the 3 h period. The i~-Tplots generated from fresh and frozen saliva samples demonstrated an appreciable change in p as a result of refrigeration. With regard to sample reproducibility, viscometric data obtained from a typical pre-orthodontic patient over a 1-week period fluctuated within a fairly broad envelope of values.

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Section: Sample Procurementmentioning

confidence: 99%