The effects of chewing-side preference on human brain activity during tooth clenching: an fMRI study

The preferred chewing side may be associated with the organization of the dominant cerebral hemisphere.

The results of the study by Jiang et al. (https://pubmed.ncbi.nlm.nih.gov/20653828/) show that blood oxygen level signals in the sensorimotor cortex of the hemisphere contralateral to the preferred chewing side increased more than in the ipsilateral hemisphere.

In my practice, I take into account balanced mastication and the types of individuals who are right or left chewers. Already in the 1980s, Montaud and Rodríguez empirically observed that there were behavioral patterns associated with the preferred chewing side, and they described right and left functions with specific characteristics for each.