Following parameters were assessed , Plaque Index ( PI ) , Gingival Bleeding Point Index ( GBI ) , Relative gingival margin level ( RGML ) , Relative attachment level ( RAL ) and Probing pocket depth ( PPD ) Results : In the test group , mean percent defect coverage was @ @ % and the predictability was @ % for root coverage i.e @ of @ defects , while in the control group , mean percent defect coverage was @ @ % and the predictability was @ % for root coverage i.e @ of @ defects .