Table 3. .

Outcome Summary and Qualifiers Used

Included Studies	TMJ Assessment			Alteration	Intercondilar Symmetry (pre and post RME)	Quality Assessment
	Condylar Position	Disc Joint	Joint Space
Arat et al. (2008)22	X*			YES	NE	NHLBI (Fair)
Arat et al. (2008)23		X		NO	NE	NHLBI (Fair)
Masi et al. (2009)24		X		NO	NE	NHLBI (Good)
Matta et al. (2009)25	X		X	YES to both	Asymmetrical to symmetrical	NHLBI (Fair)
Leonardi et al. (2012)26	X		X	YES to both	Symmetrical and remained the same	NHLBI (Good)
Melgaço et al. (2014)27	X			YES	Symmetrical and remained the same	NHLBI (Good)
McLeod et al. (2016)28	X			NO	NA	Cochrane (Uncertain)
Ghoussoub et al. (2018)29	X		X	YES to both	Symmetrical and remained the same	Cochrane (High risk)

^*condylar position assessed by remodeling; RME indicates rapid maxillary expansion; NE, not evaluable (used resonance); NA, not available.