Teeth contacting habit as a contributing factor to chronic pain in patients with temporomandibular disorders

摘要: Many different factors are known to cause and perpetuate the symptoms of temporomandibular disorders (TMD). However, roles parafunctional have not been clearly elucidated. We found one these habits in clinical setting. This habit involves daily light touching upper lower teeth, when mouth is closed. named this Teeth Contacting Habit (TCH). [OBJECTIVES] To investigate following hypotheses: 1) TCH associated with perpetuation chronic pain TMD patients; 2) other behavioral factors. [METHODS] Two hundred twenty-nine outpatients were analyzed multivariate logistic regression models. [RESULTS] was 52.4% patients. Patients lasting for more than four months less likely experience improvements at first visit (OR = 1.944, p 0.043). Other as follows: unilateral chewing 2.802) involvement a precision job 2.195). [CONCLUSION] can prolong