Material and methods
TCTR
SAND IMPACTION
This prospective, split-mouth, randomized, single-blind, clinical study was conducted in accordance with the Helsinki Declaration at the outpatient clinic department of oral surgery-hospital of Stomatology, Xian Jiaotong University from 25 June 2022 to 20 October 2022. This trial protocol was reviewed and approved by the Hospital of Stomatology’s institutional ethics committee at Xian Jiaotong University, in Xian, China, (xjkqII[2022] No: 033). In addition, it was registered with the TCTR identification number TCTR20221028003 at the Thai Clinical Trials Register-Medical Research Foundation of Thailand and written informed consents were obtained from all participants. For this study, a total of 60 sides of 30 patients (16 men/14 women) within the age group of 19 to 35 years (average age of 25 years) were included in the study. The following demographic and clinical characteristics were collected: age, gender, and impaction type Lower third molar extraction. 