Abstract
The capacity of Sybograf and Ostin to regenerate was compared in chronic periodontitis of three-wall vertical periodontitis defects. The material was randomly given for 30 patients and the clinical and radiographic assessments done at the baseline and after 3, 6, and 9 months. Sybograf (R) produced more effect of PPD reduction (4.2 mm, 72.4%) and RAL gain (4.3 mm, 32.58%) when compared to Ostin (R ) at 9 months. There was no gross discrepancy between the intergroup bone fill (Sybograf there was bone fill) and (Ostin there was bone fill) 33.1 per cent and 25.5 per cent, respectively. Sybograf 2 characteristic showed superior clinical results and both substrates were capable of regenerating bone efficiently.