Prevalence of temporomandibular disorders and bruxism in seniors.

Background: Information on the prevalence of temporomandibular disorders (TMD) or possible/probable bruxism in seniors is heterogeneous and sparse. Objectives: To elucidate the prevalence of TMD and possible/probable bruxism in German adults aged 60 years and older. Methods: Participants of the Interdisciplinary Longitudinal Study of Adult Development and Aging (ILSE) born between 1950–1952 (C1) and 1930–1932 (C2) were examined in 2014–2016 (fourth wave). The participants were surveyed and clinically examined by one calibrated examiner. Two questions of the Patient Health Questionnaire (PHQ) were utilised to evaluate self‐reported bruxism. The clinical examination included signs of probable bruxism and the RDC/TMD examination protocol. Results: Data from 191 participants were available. No RDC/TMD diagnosis was made in 83.2%. Of the participants, 15.2% received a single diagnosis and 1.6% multiple diagnoses that included disc displacements (9.4%) and degenerative joint diseases (8.9%). A total of 24.7% reported bruxism that included self‐reported awake bruxism in 11.9% and sleep bruxism in 16.2%. Wear was clinically identified in 27.2% of the participants. No sex‐related differences were observed. Significant differences were detected for probable bruxism between C1 (14.1%) and C2 (54.3%). Conclusion: In the German population aged 60 years and older, the prevalence of TMD is 16.8%. TMD is characterised by temporomandibular joint disorders, including disc displacements and degenerative joint disorders. Bruxism was observed in a quarter of the old population. [ABSTRACT FROM AUTHOR]