Comparative evaluation of treatment of angular bone defect related to over-erupted tooth using guided tissue regeneration (GTR) followed by orthodontic intrusion (OI) versus OI followed by GTR: a controlled clinical trial.

"Declarations Competing interestsThe authors declare no competing interests. Ethics approval and consent to participateEthical Approval for the present study was obtained from the ethical committee (REC), Faculty of Dentistry, Tanta University, code (#R-OMPDR-1-20-1) in accordance with the ethical guidelines outlined in the 1964 Helsinki Declaration and its subsequent revisions. The research purpose was carefully explained to patients and their informed written consent was acquired before starting treatment. Informed consentThe study purpose was explained to the Patients and informed written consent was acquired from patients before starting treatment. Consent for publicationNot applicable. Competing interests The authors declare no competing interests."

"Funding The research was not funded by our college and the authors shared the cost. Open access funding provided by The Science, Technology & Innovation Funding Authority (STDF) in cooperation with The Egyptian Knowledge Bank (EKB)."

"Registration number : NCT05371418 Registration date:12/05/2022 . Title: Effects of GTR and OI on angular bone loss."