Population
RECRUITMENT, RECRUITMENT
Recruitment, operation, and follow-up of all participants were carried between June 2019 and July 2021 at the Department of Oral Medicine and Periodontology, Faculty of Dentistry, Cairo University, Egypt. Participants were enrolled through screening of patients at the Department of Periodontology, Cairo University, Egypt, personal referrals, and poster announcements. A total of 83 participants were assessed for eligibility, 63 are excluded for not meeting the inclusion criteria, and 20 participants (20 defects) were included (Fig. Flow diagram of patient recruitment and inclusion