Effects of brushing with caffeinated toothpaste on neurocognitive function of the central nervous system: a randomized placebo-controlled clinical trial

Kiarash Zare1 , Mahva Talaei1 , Amir Hesam Pahlevani1 , Fahimeh Rezazadeh2 , Kiana Zare2 , Masumeh Akbaryari2 , Mohammad Mehdi Naghizadeh3 , Mojtaba Heydari4,5* and Mohsen Goharinia6 *