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. 2020 Oct 17;6:72. doi: 10.1186/s40729-020-00266-y

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 5 — GBR procedure for vertical bone increase in the posterior mandibular region. a Tomographic measurement of the vertical bone defect in the position of the mandibular first molar. b Clinical aspect of a vertical defect after the cortical bone’s perforations with a spiral drill. c Mixture of autogenous and ABBM grafts agglutinated with i-PRF positioned under the d-PTFE-Ti membrane already fixed in the lingual face. d The bone height of 11.2 mm measured on CBCT, after 8.5 months. e Clinical aspect of the vertical bone augmentation. f Occlusal view after GBR