Primary outcome—defect closure
The day-7 follow-up evaluation of the defect closure of the oroantral communication showed a success rate of 95% (19/20) for the PRF group and 95% (19/20) for the BAF group. Evaluation on postoperative day 21 (study endpoint) revealed a success rate of 90% (18/ 20) for both the test and the control group. Figure Success of defect closure