Background Facial resorption of maxillary alveolar ridges is a challenging situation for implant rehabilitation, which mandates a preparatory surgery of bone augmentation. Guided bone regeneration using a 1:1 mixture of autogenous particulate and anorganic bovine bone mineral (ABBM) showed reliable outcomes in treating horizontally deficient ridges. Methods Twenty‐eight patients were randomly assigned into two groups; in the control group, the 1:1 mixture of particulate autogenous bone and ABBM was covered with native collagen membrane, while in the study group, it was mixed with autologous fibrin glue (AFG) to make a sticky bone that was covered by concentrated growth factor (CGF) membrane. For each proposed implant site, the average bone width gain was calculated preoperatively, immediately after augmentation and after 6 months. Implants were placed after 6 months and the implant stability quotient (ISQ) was measured after insertion and after 6 more months. Results The graft consolidation period went uneventful in both groups; however, two cases in the sticky bone group showed total resorption of the graft upon re‐entry. The mean horizontal bone width after 6 months was 9 mm ± 0.71 in the guided bone regeneration (GBR) group which was higher than 7.9 mm ± 0.92 for the sticky bone group. The mean primary stability was higher in the GBR group; 67.19 ± 2.23 compared to 66.7 ± 3.22 for the sticky bone group, while the mean secondary stability was higher in the sticky bone group; 72 ± 2.15 compared to 71.7 ± 2.27 for the GBR group. Results of Shapiro–Wilk's for bone width data and model residuals were both statistically not significant (p > 0.05). Conclusion Comparing CGF membrane versus native collagen membrane as barriers for GBR showed no statistically significant difference regarding bone gain. However, from a clinical point of view, CGF membrane is not a predictable barrier for guided bone regeneration.

Aim:The aim of the study is to introduce an easy and predictable method for horizontal bone augmentation in maxillary bone ridge using Autologous Concentrated Growth Factors (CGF) enriched bone graft matrix (sticky bone) in contrary with guided Bone regeneration using native collagen membrane.Methodology: A total of 28 patients presenting with Cawood Class IV ridge classification (2-4mm residual alveolar width) were included in the study. 14 patients received horizontal augmentation using sticky bone prepared from a 1:1 mixture of Auto logous and anorganic bovine bone minerals covered by a concentrated growth factors (CGF) membrane. The other 14 patients received lateral augmentation using guided bone rejuvenation by a mixture of 1:1 Auto logous and anorganic bovine bone minerals covered by a native collagen membrane (sausage technique). CBCT scans were taken immediately postoperative and after 6 months to measure the horizontal bone gain in both groups.Results: For native collagen group, the median lateral gain measured at 2, 5 and 10 mm from the alveolar crest was 2.55 with range (1.43 ,4.34) mm, 2.61 with range (0.02 ,4.71) mm and 1.15 with range (-2.88 ,4.89) mm, respectively. While for CGF group, the median lateral bone gain measured at 2, 5 and 10 mm from the alveolar crest was 1.54 with range (-0,97, 2.93) mm, 2.8 with range (-2.01, 5.27) mm, 2.97 with range (-1.32, 5.4) mm, respectively. Mean horizontal bone width was statistically significant within each group, and comparing both groups the difference was also statistically significant. Conclusion:Within the limitations of the study, horizontal ridge augmentation using sticky bone covered by CGF membrane is a simple technique with unpredictable results compared to guided bone regeneration using native collagen membrane.