Secondary alveolar bone grafting (SABG) is associated with donor site morbidities. We aimed to compare the outcomes of SABG and extensive gingivoperiosteoplasty (EGPP) at the mixed dentition stage. This single-blinded, randomized, prospective trial enrolled 50 consecutive patients with unilateral complete cleft lip and palate who had residual alveolar bone cleft, of which 44 (19 SABG, 25 EGPP) completed the study. Bone volumes before surgery, 6 months postoperatively, and 1-year postoperatively were compared using computed tomography. The Bergland scale score was recorded at 6 months postoperatively. Both groups had the same preoperative alveolar cleft volume. On the Bergland scale, 21, 3, and 1 patient in the EGPP group and 16, 2, and 1 patient in the SABG group were classified as types I, II, and IV, respectively, which did not show significant difference. With perioperative orthodontic treatment, the 1-year residual bone defect volume in both groups did not show significant difference (SABG 0.12 cm³ vs. EGPP at 0.14 cm³, p > 0.05). The study was not able to reveal much difference between SABG and EGPP combined with perioperative orthodontic treatment.

Background Motorcycle injuries remain a significant cause of motor vehicle-related morbidity and mortality in Taiwan. Besides, the facial region is a commonly fractured site under motorcycle accidents. To date, there are no trauma mechanism-based studies of facial fractures. Aim and Objectives This study aims to determine the facial fracture patterns, the severity of head trauma, and associated injuries by different motorcycle-related trauma mechanisms enabling a greater understanding of its distribution and magnitude. Methods This is a retrospective descriptive analysis conducted over a 2-year period at Linkou Chang Gung Memorial Hospital. We focused on the population of maxillofacial injury caused by motorcycle accidents. We divided the patient cohort into 3 main trauma mechanisms: single-motorcycle collision (SM group), motorcycle-to-motorcycle collision (MM group), motorcycle-to-vehicle collision (MV group). Data, including demographics, age, fracture patterns of facial bones, and other associated injuries, were collected. Results A total of 881 cases were identified that involved facial fractures. Most patients were male (71%), young adult (mean age, 32.49 years), and the most common fracture region is the midfacial fracture (79.5%, 700 victims). Among the 3 groups, the MM group was less likely to sustain severe injuries by trauma score system, less head injury and mortality rate. The MV group and SM group have similar mortality rates but different fracture pattern tendencies. Lower facial fractures were more likely in the MV group, but midface fractures in the SM group. Associated injuries were higher in the MV group. Conclusions Our study presents the different trends of fracture patterns and injury under 3 main mechanisms of motorcycle casualties. We document all these data in the hope of providing insights into trauma doctors dealing with motorcycle accidents.