Related Experiment Video
Updated: Aug 19, 2026

Use of the Operant Orofacial Pain Assessment Device (OPAD) to Measure Changes in Nociceptive Behavior
Published on: June 10, 2013
Atypical presentation of odontogenic pain
1USAF Dental Investigation Service, USAF School of Aerospace Medicine, Brooks Air Force Base, Texas 78235-5117, USA.
Abstract:
Pain referral patterns in the head and neck regions can be complex and frustrating for practitioners to diagnose and treat. This clinical case report involves a patient who did not respond to initial medical treatment for headache pain. The pain was found to be referred from a carious and pulpally involved mandibular molar that interestingly responded normal to pulp vitality testing.
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