Patient and population (P) Healthy adult patients with atrophy of the posterior part of the maxilla receiving maxillary sinus floor augmentation applying the lateral window technique.
Intervention (I) Barrier membrane coverage of the lateral window.
Comparator or control group (C) No barrier membrane coverage of the lateral window.
Outcomes (O) Primary outcomes included survival of suprastructures and implants. Secondary outcomes included implant stability quotient, peri-implant marginal bone loss, bone regeneration, patient-reported outcome measures, biologic and mechanical complications.
Study design (S) Randomised controlled trials and controlled trials with an observation period of minimum six months.
Focused question Are there any differences in implant treatment outcomes after maxillary sinus floor augmentation with or without barrier membrane coverage of the lateral window?