Bruxism is considered to be the most hurtful among all the activities of the stomatognathic system, being a risk factor to temperomandibular disorders (TMD) and myofascial pain.
As the tightening and/or gnashing of teeth occurs, the consequences arise, such as: dental destruction, periodontal damage, temperomandibular articulation disorder (TMA), damages in the chewing muscles, dental restoration rupture and grinding sounds that may interfere in the family and life partners' sleep.
Its etiology is multifactorial, and many theories were proposed along the years as to the causal factors. In the past, peripheral factors as occlusion discrepancies and deviations in anatomicals were considered to be the main causes of bruxism. Currently the focus is more central. Psychosocial factors, such as stress, anxiety and personality alterations are frequently related to bruxism.
Awake and Sleep Bruxism
Picture 1 - Sleep bruxism
Picture 2 - Awake bruxism