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Persistent dentoalveolar pain disorder: A putative intraoral chronic overlapping pain condition.

Chronic overlapping pain conditions (COPC) are conditions that share several clinical characteristics and symptomatology, are usually considered idiopathic in nature and are frequently comorbid. Currently, there is no established inclusion criteria to determine which conditions should be included under this umbrella term despite different systems being proposed. Persistent dentoalveolar pain disorder (PDAP), also referred to as atypical odontalgia and thought to be a component of persistent idiopathic facial pain, is a chronic pain condition that manifests as a persistent tooth pain or pain over a dentoalveolar site formerly occupied by a tooth in the absence of detectable pathology during clinical or radiological exam. PDAP is considered idiopathic in nature and its pathophysiological mechanisms are not fully understood. Our objective was to investigate if PDAP fits the conceptual paradigm of COPC given its characteristics and commonalities with other COPC.