Clinical and histomorphometric soft tissue assessment comparing free gingival graft and a collagen matrix as alveolar-sealer materials: a randomized controlled pilot clinical trial.

Objective: This study aimed to compare the alveolar sealing performance between free gingival graft (FGG) and porcine collagen membrane (MS) and qualitatively assess patient-centered outcomes via a visual analog scale.

Method And Materials: Eighteen patients were randomly divided into control (FGG) and test (MS) groups. After extraction, all the alveoli were filled with bovine bone grafts (small granules) and sealed.