National Sleep Foundation

Chapter 7: Sleep-Related Movement Disorders

Assessment and Diagnosis of Sleep-Related Bruxism (SB)

A Sleep-Related Bruxism (SB) diagnosis is based on a report of tooth-grinding made by the patient, a bed partner, and/or family member. The presence of tooth wear can also be assessed, although this is unreliable for diagnosis in the absence of witnessed grinding or tapping. Patient reports of jaw muscle tightness or other pain and/or discomfort are also useful in making a diagnosis.78

Polysomnography can also be used to monitor and assess tooth-grinding.79
 

References 

78 Bader G, Lavigne GJ. Sleep bruxism: overview of an oromandibular sleep movement disorder. Sleep Med Rev. 2000. 4:27-43.
79 Lavigne GJ, Kato T, Kolta A, Sessle BJ. Neurobiological mechanisms involved in sleep bruxism. Crit Rev Oral Biol Med. 2003;14:30-46