“…The last search was conducted on 16 April 2018. To complement the database search, cross‐searching of cited references in 24 systematic reviews on the topic of ARP published until 1 May 2018 (Atieh et al., ; Avila‐Ortiz et al., ; Barallat et al., ; Castro et al., ; Chan, Lin, Fu, & Wang, ; Corbella, Taschieri, Francetti, Weinstein, & Del Fabbro, ; De Risi, Clementini, Vittorini, Mannocci, & De Sanctis, ; Del Fabbro et al., ; Horvath, Mardas, Mezzomo, Needleman, & Donos, ; Iocca et al., ; Jambhekar, Kernen, & Bidra, ; Lee, Lee, Koo, Seol, & Lee, ; MacBeth et al., ; Mardas, Trullenque‐Eriksson, MacBeth, Petrie, & Donos, ; Moraschini & Barboza, ; Morjaria, Wilson, & Palmer, ; Moslemi, Khoshkam, Rafiei, Bahrami, & Aslroosta, ; Natto, Yaghmoor, Bannuru, & Nevins, ; Ten Heggeler, Slot, & Van der Weijden, ; Troiano et al., ; Vignoletti et al., ; Vittorini Orgeas et al., ; Weng, Stock, & Schliephake, ; Willenbacher et al., ) was also performed. Additionally, in an attempt to identify relevant information in the grey literature, two open databases, OpenGrey (http://www.opengrey.eu) and Grey Literature Report (http://www.greylit.org), were searched on 15 September 2018 using the term “alveolar ridge preservation.”…”