“…As regards digitally guided sinus augmentation with a lateral approach (Cecchetti et al, 2021;Goodacre et al, 2018;Mandelaris & Rosenfeld, 2008;Parda-Pelaez et al, 2020;Osman et al, 2017;Seoung-Won et al, 2020;Stanley & Kurtzman, 2017;Strbac et al, 2020;Zaniol et al, 2018Zaniol et al, , 2021, it is worth noting that the creation of the surgical template will simplify and optimize the lateral window osteotomies and, according to some authors (Osman et al, 2017;Strbac et al, 2020), will reduce the incidence of membrane perforations. However, it is our opinion that the risk of membrane tears may depend also on surgical skills, membrane thickness, previous inflammatory processes, presence of adherences, sharp angles in the mesial angle of the sinus, etc., which are not dependent on the use/not use of the surgical template.…”