الفهرس 
RIDGE AUGMENTAION USING AUTOLOGOUS CONCENTRATED GROWTH FACTORS (CGF) ENRICHED BONE GRAFT MATRIX (STICKY BONE) VERSUS GUIDED BONE REGENERATION USNIG NATIVE COLLAGEN MEMBRANE IN HORIZONTALLY DEFICIENT MAXILLA (Randomized Clinical Trial)
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Abstract
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