24
Participants
Start Date
August 1, 2023
Primary Completion Date
August 31, 2024
Study Completion Date
August 31, 2024
Injectable applied vitamin C
Surgical gingival depigmentation is done for all participants, after then they receive injectable vitamin C
Topical applied Vitamin C
Surgical gingival depigmentation is done for all participants, after then they are instructed to apply topical vitamin C
Surgical depigmentation only
Surgical gingival depigmentation only without any drug
RECRUITING
Faculty AinShams University, Cairo
Ain Shams University
OTHER