Study design
This prospective, parallel-group, single-blinded study with balanced randomization (1:1) was approved by the Institutional Review Board (IRB) of Pusan National Dental Hospital (IRB No. PUNDH-2021-10) and registered in the clinical trial registry (KCT0006965). This study was conducted from March 2022 to October 2022 at the Pusan National University Dental Hospital (Yangsan, Republic of Korea). Written informed consent was obtained from all the patients who agreed to participate in this study.