Increased somatosensory amplification is associated with decreased pressure pain thresholds at both trigeminal and extra‐trigeminal locations in healthy individuals
| Autor: | Ka Chun Jeremy Ho, Valerie E Spano, Jeffrey Cf Chow, Iacopo Cioffi, Tina V Imbriglio |
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| Rok vydání: | 2020 |
| Předmět: |
Male
Pain Threshold medicine.medical_specialty Temporal Muscle Physical examination Audiology Palpation 03 medical and health sciences 0302 clinical medicine Statistical significance Humans Medicine Medical history General Dentistry medicine.diagnostic_test Masseter Muscle business.industry Decreased pressure Somatosensory amplification 030206 dentistry Temporomandibular Joint Disorders Masticatory force stomatognathic diseases Masticatory Muscles Female business 030217 neurology & neurosurgery Thenar eminence |
| Zdroj: | Journal of Oral Rehabilitation. 48:10-17 |
| ISSN: | 1365-2842 0305-182X |
| Popis: | Background The diagnosis of temporomandibular disorders (TMD) is based on patient history and physical examination, and may require medical imaging. Masticatory muscle palpation is essential to make a diagnosis of TMD. However, the response of masticatory muscles to mechanical pressure stimuli depends on many physical and psychological factors. Objective This study aimed at determining the impact of somatosensory amplification (SSA)-an estimate of somatic awareness and bodily hypervigilance-on pressure pain thresholds (PPTs) measured at both trigeminal and extra-trigeminal locations in healthy individuals. Methods PPTs were measured at the right anterior temporalis and superficial masseter, and the thenar eminence of the right hand in one hundred healhty individuals (69F, 31M), divided in three groups based on their SSA scores: low (N = 32), intermediate (N = 34) and high (N = 34). General linear models were used to test between-group differences in PPTs including sex as a covariate. The level of significance was set at P Results Individuals with high SSA had lower PPTs at the anterior temporalis than individuals with low (P = .006) and intermediate (P = .001) SSA. No significant between-group differences were found in PPTs measured at the masseter (P = .372). PPTs measured at the thenar eminence were significantly lower in the high than the low SSA group (P = .009). Females had lower PPTs at the masseter than males (P = .021) but not at other muscle locations (all P > .05). Conclusion Increased somatosensory amplification is associated with decreased pressure pain thresholds at both trigeminal and extra-trigeminal locations in healthy individuals. SSA could be a potential confounder while diagnosing TMD and evaluating treatment outcomes. |
| Databáze: | OpenAIRE |
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