13
Participants
Start Date
March 15, 2022
Primary Completion Date
May 30, 2023
Study Completion Date
May 30, 2023
apically repositioned flap+ xenogeneic collagen matrix +free gingival graft
Harvest a strip free gingival graft from the palate, then place it above apically repositioned flap and fix xenogeneic collagen matrix to the recipient bed
The Affiliated Stomatology Hospital of Zhejiang University School of Medicine, Hangzhou
The Dental Hospital of Zhejiang University School of Medicine
OTHER