div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: · Hydro Membrane Lifts You can check the sinus floor opening with water pressure and elevate the membrane with water pressure if there is an opening src=https:reader033vdocumentinreader033viewer20220416165e3b48e6d6796630123da82ehtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: · Hydro Membrane Lifts You can check the sinus floor opening with water pressure and elevate the membrane with water pressure if there is an opening src=https:reader033vdocumentinreader033viewer20220416165e3b48e6d6796630123da82ehtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv