Salivary cortisol response to electrical stimulation in TMD cases and its relation with pain catastrophizing

VernacularTitle:TMD 患者电刺激后唾液皮质醇变化及与疼痛灾难化认知的关系
Author: Xue LI ; Juan ZHANG ; Yusheng WANG
Publication Type:Journal Article
Keywords: Temporomandibular disorders(TMD); Electrical stimulation; Unpredictable stress; Salivary corti-sol; Pain catastrophizing(PCS)
From: Journal of Practical Stomatology 2015;(3):374-377
CountryChina
Language:Chinese
Abstract: Objective:To analyse the salivary cortisol changes in patients with temporomandibular disorders(TMD)after electrical stimulation,and the relationship between cortisol and pain catastrophizing.Methods:1 1 TMD and 1 1 healthy subjects were evoked by electrical stimulation.The saliva samples were collested before test,50 s and 1 00 s of stimulation after test seperately.Salivary cortisol was analysed by ELISA kit.The pain catastrophizing scale(PCS)was answered by all the subjects before stimulation.Data were statis-tically analysed.Results:The salivary cortisol concentration in TMD patients was higher than that in the controls(P <0.05).After stimulation,it showed a downward trend.No interaction between time and groups.The total scores of PCS including three indexes(ru-mination,magnification,helpless)were positively correlated with salivary cortisol concentration.Conclusion:The unpredictable stress causes high level of cortisol.which is related to pain catastrophizing.