Patient and population (P) Healthy adult patients with atrophy of the alveolar process receiving lateral alveolar ridge augmentation with an autogenous bone block graft prior to implant placement.
Intervention (I) Barrier membrane coverage.
Comparator or control group (C) No barrier membrane coverage.
Outcomes (O) Primary outcome measures included survival of implants and suprastructures. Secondary outcome measures included peri-implant marginal bone loss, two-dimensional width changes, three-dimensional volumetric width changes, bone regeneration, PROM, biological and mechanical complications.
Study design (S) Randomised controlled trials.
Focused question Are there any differences in implant treatment outcome following lateral alveolar ridge augmentation with an autogenous bone block graft alone with or without barrier membrane coverage?