Brushing your teeth is a tradition or a habit. Wetting a toothbrush before a person uses it is a tradition (wetting the hard bristles of the toothbrush in the old days would soften the bristles). Soft bristles are used mostly today on toothbrushes.
Toothpaste- Should I put it on the toothbrush when I brush my teeth? With research, instructing patients to use a dry brush first until the teeth feel clean and then use toothpaste will be more effective in removing plaque!!! I have been doing this for years and did not know this fact. This may be one of the reasons that I became a DENTIST.