Geneva, Jan. 12 -- International Clinical Trials Registry received information related to the study (ChiCTR2500114825) titled 'Comparative Evaluation of Free Gingival Graft (FGG) and Porcine-Derived Absorbable Collagen Matrix Membrane (MS) as Sealing Materials for Site Preservation in the Maxillary Anterior Region' on Dec. 17, 2025.
Study Type: Interventional study
Study Design:
Parallel
Primary Sponsor: Department of Stomatology, General Hospital of Northern Theater Command, People's Liberation Army
Condition:
none
Intervention:
Experimental Group: Porcine-derived Absorbable Collagen Matrix Membrane :The experimental group used porcine-derived absorbable collagen matrix membrane as the ridge preservation material.
Recruitment S...