Somesthetic,gustatory, olfactory function and salivary flow in patients with neuropathic trigeminal pain |
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Authors: | M Siviero MJ Teixeira JTT De Siqueira SRDT Siqueira |
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Institution: | 1. Orofacial Pain Team, Department of Neurology, Medical School, University of Sao Paulo, Sao Paulo, Brazil;2. Department of Neurology, Medical School, University of Sao Paulo, Sao Paulo, Brazil;3. Dentistry Division, Hospital das Clinicas, Medical School, University of Sao Paulo, Sao Paulo, Brazil;4. School of Arts, Science and Humanities, University of S?o Paulo, Sao Paulo, Brazil |
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Abstract: | Oral Diseases (2010) 16 , 482–487 Objectives: To determine somesthetic, olfactory, gustative and salivary abnormalities in patients with burning mouth syndrome (BMS), idiopathic trigeminal neuralgia (ITN) and trigeminal postherpetic neuralgia (PHN). Subjects and Methods: Twenty patients from each group (BMS, ITN, PHN) and 60 healthy controls were evaluated with a systematized quantitative approach of thermal (cold and warm), mechanical, pain, gustation, olfaction and salivary flow; data were analyzed with ANOVA, Tukey, Kruskal–Wallis and Dunn tests with a level of significance of 5%. Results: There were no salivary differences among the groups with matched ages; the cold perception was abnormal only at the mandibular branch of PHN (P = 0.001) and warm was abnormal in all trigeminal branches of PHN and BMS; mechanical sensitivity was altered at the mandibular branch of PHN and in all trigeminal branches of BMS. The salty, sweet and olfactory thresholds were higher in all studied groups; the sour threshold was lower and there were no differences of bitter. Conclusion: All groups showed abnormal thresholds of gustation and olfaction; somesthetic findings were discrete in ITN and more common in PHN and BMS; central mechanisms of balance of sensorial inputs might be underlying these observations. |
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Keywords: | sensorial interaction facial sensibility orofacial pain trigeminal nerve taste olfactory threshold gustation neuropathic pain quantitative sensory testing |
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