Case ReportPublished 5 October 2026Personalized 3D-printed osteotomy guide combined with an ultrasonic bone scalpel for precise periapical cystectomy: a case reportJieying Li · Haoyu Sun · Xiaoyang Shan · Zhimin Zhang · Huibin Sun · Kai ZhouFrontiers in Surgerydoi 10.3389/fsurg.2026.1853640