biostudies-literatureMatsumoto RYu HikitaTetsutaro Yamaguchi458https://www.ebi.ac.uk/biostudies/studies/S-EPMC12562631biostudies-literatureUnknown13(10)<b>Background/Objectives:</b> Multi-bracket appliances are essential in surgical orthodontic treatment, and perioperative oral management during orthognathic surgery is critical. Thorough plaque control, appropriate use of antibiotics, and shortening of operative time have been reported to be effective in preventing postoperative infections and ensuring surgical success. As highly invasive orthognathic surgery involving osteotomy may influence the postoperative oral microbiota, this study aimed to investigate the characteristics of and clarify the changes occurring in the salivary oral microbiota after orthognathic surgery. <b>Methods:</b> The study included 14 patients (Group S; mean age 29.3 ± 9.8 years) who underwent surgical orthodontic treatment and 15 control patients (Group C; mean Dentistry journalComparison of Long-Term Oral Bacterial Flora Before and After Orthognathic Surgery in Surgical Orthodontic Treatment.PMC1256263124K2009124K13185Hosomichi KHikita YMatsumoto RYamaguchi THatanaka ROkuwaki STakahashi MKoizumi SfalseComparison of Long-Term Oral Bacterial Flora Before and After Orthognathic Surgery in Surgical Orthodontic Treatment.<b>Background/Objectives:</b> Multi-bracket appliances are essential in surgical orthodontic treatment, and perioperative oral management during orthognathic surgery is critical. Thorough plaque control, appropriate use of antibiotics, and shortening of operative time have been reported to be effective in preventing postoperative infections and ensuring surgical success. As highly invasive orthognathic surgery involving osteotomy may influence the postoperative oral microbiota, this study aimed to investigate the characteristics of and clarify the changes occurring in the salivary oral microbiota after orthognathic surgery. <b>Methods:</b> The study included 14 patients (Group S; mean age 29.3 ± 9.8 years) who underwent surgical orthodontic treatment and 15 control patients (Group C; mean 2025-01-01T00:00:00Z2025 Oct2026-05-14T03:20:22.779Z2026-05-14T03:12:45.245ZS-EPMC125626314114910710.3390/dj13100458