title: Pain perception to electrical stimulation of the periapical tissues in human subjects and the possible influence of disease.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D004558:Electric Stimulation; D006801:Humans; D008875:Middle Aged; D010146:Pain; D010465:Perception; D010486:Periapical Tissue / Q000502:physiology*; D010510:Periodontal Diseases / Q000503:physiopathology