“…The control groups underwent open flap debridement (OFD) [ 9 , 10 , 78 , 79 , 80 , 81 , 82 , 86 , 88 , 89 ], demineralized freeze-dried bone allografts (DFDBA) [ 87 , 91 ], bovine bone [83] , barrier membrane (Goretex) [90] , enamel matrix derivative (EMD) [ 77 , 84 ], nonabsorbable polytetrafluoroethylene membrane (e-PTFE) [85] , and debridement only (DEBR) [93] . The test groups were alloplastic graft alone with β-tricalcium phosphate (β-TCP/HA) [77] and bonelike containing glass-reinforced HA [86] , synthetic HA alone [93] , porous HA (PHA) [90] , resorbable HA (Osteogen) [66] , or synthetic HA combined with OFD [ 9 , 78 , 88 , 89 ], PRP [78] , β-TCP [ 80 , 81 , 82 ], barrier membrane such as EMD [ 81 , 84 ], collagen membrane [79] , Goretex [90] , e-PTFE membrane [94] , bioactive glass [10] , or DFDBA [92] . The mean values and 95% CIs for the test and control groups of the selected comparable studies performed for treatment of periodontal bone defect measured in certain follow-up periods ( Fig.…”