In doing research related to the amount of saliva- how to objectively quantify the amount?
Following papers may help
1. Navazesh, M., & Kumar, S. K. (2008). Measuring salivary flow: challenges and opportunities. The Journal of the American Dental Association, 139, 35S-40S.
2. Likhterov, I., Ru, M., Ganz, C., Urken, M. L., Chai, R., Okay, D., ... & Lazarus, C. L. (2018). Objective and subjective hyposalivation after treatment for head and neck cancer: Long‐term outcomes. The Laryngoscope, 128(12), 2732-2739.
Saliva can either be collected "whole", as in from all salivary glands (minor and major) or can be isolated from one particular gland, usually the parotid gland, using a device such as the Stensen's cup.
In addition, saliva can be collected as "stimulated" usually with sterile marbles/wax/citric acid or "unstimulated"
So you may collect stimulated whole saliva using a sterile marble for a fixed time, say 5 min, and work out a stimulated whole saliva flow rate.
You can collect pure saliva sample from the exit of salivary gland this will be more specific in research
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