Simultaneous implant placement with autogenous onlay bone grafts: a systematic review and meta-analysis

International Journal of Implant Dentistry

Table 4 Quality assessment of included studies

Study	Random selection in population	Defined inclusion/exclusion criteria	Reported loss to follow-up	Validated measurements	Statistical analysis	Estimated potential risk of bias
Adell et al. 1990 [24]	No	No	Yes	Yes	Yes	High
Isaksson and Alberius 1992 [23]	No	No	No	No	No	High
Åstrand et al. 1996 [22]	No	No	No	Yes	Yes	High
McGrath et al. 1996 [21]	No	No	No	Yes	Yes	High
Vermeeren et al. 1996 [32]	No	No	No	Yes	Yes	High
Steenberghe et al. 1997 [31]	No	No	No	Yes	Yes	High
Verhoeven et al. 1997 [30]	No	No	No	No	No	High
Lekholm et al. 1999 [29]	No	Yes	Yes	No	No	High
Nyström 2004 [28]	No	No	No	Yes	Yes	High
van der Meij et al. 2005 [27]	No	Yes	Yes	Yes	Yes	Moderate
Boronat et al. 2010 [26]	No	Yes	Yes	Yes	Yes	Moderate
Kang et al. 2015 [8]	No	Yes	Yes	Yes	Yes	Moderate
El Zahwy et al. 2019 [25]	Yes	Yes	Yes	Yes	Yes	Low
Kablan 2020 [20]	No	No	No	No	No	High
Misch and Dietsh 1994 [16]	No	No	No	No	No	High
Triplett and Schow 1996 [17]	No	No	No	No	No	High
Widmark et al. 2001 [18]	No	Yes	Yes	Yes	Yes	Moderate
Peñarrocha-Diago et al. 2013 [9]	No	Yes	Yes	Yes	Yes	Moderate
Tosun et al. 2017 [19]	No	Yes	Yes	Yes	Yes	Moderate