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. 2020 Nov 13;99(46):e23180. doi: 10.1097/MD.0000000000023180

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Copyright © 2020 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/4.0

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Representative CBCT radiographs demonstrate procedural steps for 2-stage bone-added osteotome sinus floor elevation procedure (BAOSFE) (B-2 group). (A, B) Pre-operative radiographs show extremely atrophic residual bone height (RBH) over the upper right second molar region (RBH: 2.7 mm). (C) Radiograph obtained immediately after first stage of 2-stage BAOSFE. (D, E) Radiographs obtained 6 months after sinus lift, immediately following implant placement (2nd stage). (F) Radiograph obtained 18 months after prosthesis delivery.