[Morphological substrate of antalgia and analgesia in the odontostomatological and facial area].

Prior personal work is further extended by a description of the way in which odontostomatological and facial pain is sedated by acupuncture: via peripheral receptors, whose stimulations are intercepted and modulated by various filters lying between the periphery and the cortex: cord (gelatinous substance of Rolando, gate control system), reticular formation and thalamocortical pathways.