Role of Space Provision in Regeneration of Localized Two‐Wall Intrabony Defects Using Periosteal Pedicle Graft as an Autogenous Guided Tissue Membrane

Background: Marginal pedicle periosteum (MPP) has been used as a rigid membrane in guided tissue regeneration (GTR) for osseous defects. The present study aims to study the effect of space provision by an alloplastic graft material in bone defect area (BDA) reduction of 2‐wall defects. Methods: Twenty interproximal intrabony 2‐wall defects in healthy non‐smoking patients with chronic periodontitis were randomly divided in control (group 1, periosteum alone) and experimental (group 2, periosteum with alloplastic graft material) groups. Measurements of probing depth (PD), clinical attachment level (CAL), and radiographic BDA were done at the baseline and 6‐month postoperative evaluations. Results: The 6‐month postoperative assessment showed clinical and radiographic improvements with PD reduction, CAL gain, and changes in BDA in both groups, which was statistically significant compared with baseline (P