Table 2.

Study characteristics table.

Study Name	Author(s)	Publication Year	Journal	Study Design	Sample Size	Population	Ages
Hickman & Cramer (15)	Hickman & Cramer	1998	Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology	Comparative experimental study	20	Normal adults	Mean age ∼ 26.9 (23−39)
Bracco et al. (15)	Bracco et al.	2004	Neuroscience Letters	Experimental crossover	95	Asymptomatic volunteers	18–52
Cooper & Kleinberg (17)	Cooper & Kleinberg	2008	The Journal of Craniomandibular & Sleep Practice	Clinical trial	313	TMD patients	Mean age ∼ 40
Arent et al. (20)	Arent et al.	2010	Comparative Exercise Physiology	Double-blind crossover RCT	22	Athletes	18–34
Maurer et al. (18)	Maurer et al.	2015	PLoS ONE	Experimental crossover	20	Athletes	∼ 33.9 ± 5.8
Maurer et al. (19)	Maurer et al.	2018	PLoS ONE	Experimental, Randomized crossover trial	23	Athletes	∼ 34.0 ± 10.3