Relationship between toothclenching and temporomandibular disorders

Toothclenching is multifactorial condition and it is responsible for generating an overload on the teeth, periodontium, muscles and temporomandibular joints (TMJ). Overload or hyperactivity in the joint can promote joint dysfunction that causes painful symptoms. A parafunctional habit such as the toothclenching involves a big context in the organism and may represent a predisposing factor as well as an exacerbation of temporomandibular dysfunction and chronic pain development. Furthermore, it has consequences on the survival of restorative and rehabilitation treatments. The aim of the present study was to discuss what has already been described in the literature on the relationship between toothclenchingand temporomandibular joint dysfunction, through a review of the literature. Conclusion: The diagnosis should be made early, mainly because some damages may be irreversible. Treatment requires the removal of the cause, usually associated with the use of protective measures that minimize hyperactivity, aiming to maintain the integrity of the joint and adjacent structures and well-being of patients with TMJ dysfunction.