TABLE 1.

Reasons for exclusion during data extraction

Main reason for exclusion	N	Studies
Insufficient data for screening assessment	67	Agliardi et al. (2014) Al Amri et al. (2017) Alasqah et al. (2018) Arlin et al. (2007) Bilhan et al. (2010) Bornstein et al. (2007) Bornstein et al. (2005) Bruschi et al. (2017) Cassetta et al. (2016) Cesaretti et al. (2015) Cochran et al. (2009) Crespi et al. (2010) Degidi et al. (2009a) Degidi et al. (2009b) Ferrini et al. (2018) Glauser et al. (2013) Glibert et al. (2016) Gomez‐Roman et al. (2001) Han et al. (2017) Harel et al. (2013) Jungner et al. (2014) Jungner et al. (2012) Kim et al. (2017) Kokovic et al. (2014) Maddalone et al. (2018) Malchiodi et al. (2011) Montero et al. (2012) Muelas‐Jiménez et al. (2015) Mura (2018) Nicolau et al. (2019) Nicolau et al. (2013) Peñarrocha‐Diago et al. (2012) Pettersson and Sennerby (2013) Polizzi et al. (2000) Polizzi et al. (2013) Pozzi et al. (2012) Pozzi et al. (2015) Rammelsberg et al. (2016) Rocci et al. (2012) Roccuzzo et al. (2018) Rocha et al. (2016) Rossi et al. (2017) Sato et al. (2014) Schliephake et al. (2012) Şener‐Yamaner et al. (2017) Sullivan et al. (2005) Sullivan et al. (2001) Tallarico and Meloni (2017) Testori et al. (2017) Valerón and Valerón (2007) Villa (2018) Wagenberg and Froum (2014) Zembić et al. (2010) Madani et al. (2018) Jung et al. (2016) Cochran et al. (2011a) Cochran et al. (2011b) Esposito et al. (2018) Bressan et al. (2017) Felice et al. (2019) Gastaldi et al. (2017) Maló and de Araújo Nobre (2016) Nedir et al. (2017) Prosper et al. (2010) Queridinha et al. (2016) Testori et al. (2001) Zuffetti et al. (2016)
Mean follow‐up less than 3 years	3	Schwartz‐Arad et al. (2007) Cordaro et al. (2010) Degidi et al. (2008)
Less than 10 patients at 3 years	1	Ding and Wang (2017)
Absence of FPDs supported by ≥2 implants	7	Prati et al. (2016) Kolinsky et al. (2013) Merli et al. (2020) Romeo et al. (2012) Salina et al. (2019) Crespi et al. (2016) Bruschi et al. (2014)
Insufficient data do separate different placement protocols	4	Ferrini et al. (2018) Glauser et al. (2016) Glauser et al. (2006) Degidi et al. (2018)
Insufficient data to separate single/full mouth from multiple units	44	Pozzi et al. (2014) Anitua et al. (2016) Botticelli et al. (2018) Cresp, et al. (2017) Crespi et al. (2016) Crespi et al. (2010a) Crespi et al. (2010b) Crespi et al. (2014) Degidi et al. (2012) Degidi et al. (2003) Galindo‐Moreno et al. (2014) Liu et al. (2019) Malchiodi et al. (2010) Maló et al. (2011) Maló et al. (2015) Maló et al. (2000) Malo et al. (2007) Maló et al. (2016) Malo et al. (2014) Martinez‐Rodriguez et al. (2018) Mengel et al. (2005) Merli et al. (2020) Mura et al. (2012) Nedir et al. (2004) Öskan et al. (2011) Paredes et al. (2018) Pozzi et al. (2014) Rocci et al. (2003a) Rodrigo et al. (2012) Soydan et al. (2013) Telleman et al. (2017) Wilson et al. (2013) Bettach et al. (2018) Cannizzaro et al. (2008) Crespi et al. (2016) Francetti et al. (2014) Mendonca et al. (2017) Wallkamm et al. (2015) Felice et al. (2018) Felice et al. (2015) Göthberg et al. (2016) Balmer et al. (2018) Temmerman et al. (2019) Mertens et al. (2011)
Time of implant placement/loading not reported	13	Al Amri et al. (2017) ArReaje et al. (2019) Baelum et al. (2004) Blus et al. (2010) Bornstein et al. (2003) Bornstein et al. (2010) Cannizzaro et al. (2013) Chiapasco et al. (2020) Ibanes et al. (2003) Östman et al. (2018) Degidi et al. (2010) Harel et al. (2013) Rocci et al. (2003b)