Ethics approval and consent to participate
The study protocol was approved by the Ethics Committee, Faculty of Dentistry, Cairo University University (January 2019) and registered in the Clinical Trials Registry (clinicalTrials.gov) NCT03792425. The CONSORT guidelines for randomized clinical trials were followed. The detailed surgical procedures and follow-up periods were clearly described to all patients who participated in this clinical trial before signing the informed consent that extends to allow publication of the data.