Table 1. Characteristics of included studies.

Study	Date	Design	Type of screw	Cases	Mean±SD (age year)	Female	Osteotomy	Follow-up
Acar et al.[14]	2018	RCS	Mg	17	49.9±15.1	14	Chevron	19 months
			Ti	17	48.5±14.6	13		16.2 months
Klauser[11]	2018		Mg	100	50.9	95		3 months
		RCS	Ti	100	52.3	90	Youngswick/Chevron	3 months
Plaass et al.[10]	2018	RCT	Mg	8	56±8.9	NS	Chevron	3.18 years
			Ti	6	52±9.0	NS		3.1 years
Wendelstein et al.[16]	2021	RCS	Mg	16	60.6±12.1	16	Chevron	13 months
			Ti	16	60.2±11.5	16		14.34 months
Windhagen et al.[15]	2013	RCT	Mg	13	57.2±7.2	11	Chevron	6 months
			Ti	13	49.9±16.5	13		6 months
SD: Standard deviation; RCS: Retrospective controlled trial, RCT: Randomized-controlled trial, Mg: Magnesium, Ti: Titanium, NS: Not stated.