A trend of increase was seen at year 3 (CGF group, 3.80 ± 1.41 mm; CM group, 3.28 ± 1.27 mm) compared to year 1 postoperatively (CGF group, 3.71 ± 1.09 mm; CM group, 2.70 ± 0.80 mm) for both groups, and the increase was found statistically significant for the CM group ( p = 0.005); however, it did not reach statistical significance in the CGF group ( p = 0.582).
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Efficacy of concentrated growth factor versus collagen membrane in reconstructive surgical therapy of peri-implantitis: 3-year results of a randomized clinical trial.
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