Thesis (M.Sc.) - Cairo University - Faculty of Dentistry - Department of Oral Implantology.

Aim: The aim of the study is radiographic assessment of bone gain using autologous concentrated growth factors (CGF) enriched bone graft matrix (sticky bone) versus guided bone regeneration using native collagen membrane for horizontally deficient maxilla. Methodology: A total of 28 patients presenting with Len 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 autogenous and anorganic bovine bone minerals covered by a concentrated growth factors (CGF) membrane. The other 14 patients received horizontal augmentation using guided bone regeneration by a mixture of 1:1 autogenous 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 horizontal 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 horizontal gain measured at 2, 5 and 10 mm from the alveolar crest was 1.54 with range (-0,97, 2.93) mm, 2.8with 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

Issued also as CD