Subjective sleep quality and temporomandibular disorders: Systematic literature review and meta-analysis.

Study Objectives: To assess the general subjective sleep quality in individuals with and without TMD, and its distribution among the TMD diagnostic groups.

Methods: A systematic review search was performed in Pubmed/MEDLINE, Embase, LILACS, Web of Science, SciELO, CINAHL and Cochrane Central as well as in the grey literature. Observational studies published since 1992 which used either the DC/TMD or RDC/TMD for TMD diagnosis and either the PSQI, SAQ or ESS questionnaires for sleep assessment were included.

Can hard and/or soft occlusal splints reduce the bite force transmitted to the teeth and temporomandibular joint discs? A finite element method analysis.

Objective: To test whether two different materials used for occlusal splints would reduce the stress to the temporomandibular joint discs.

Methods: Geometric data from a young-adult male patient were obtained from computed tomography and magnetic resonance imaging. 3D biomodels and the finite element analyses were performed using specific software.