Brief Clinical StudiesRetrieval of Root Fragment in Maxillary Sinus Via Anterolateral Wall of the Sinus to Preserve Alveolar BoneHu, Ying Kai DDS*; Yang, Chi MD, PhD*; Zhou Xu, Guang MD*; Wang, Yong DDS*; Abdelrehem, Ahmed MS†Author Information From the *Department of Oral and Maxillofacial Surgery, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China; and †Department of Cranio-Maxillofacial and Plastic Surgery, Faculty of Dentistry, Alexandria University, Alexandria, Egypt. Received May 26, 2014. Accepted for publication July 31, 2014. Address correspondence and reprint requests to Chi Yang, MD, PhD, and Guang Zhou Xu, MD, Department of Oral and Maxillofacial Surgery, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi-Zao-Ju Rd, 200011, Shanghai, People’s Republic of China; E-mail: [email protected] No sources of support and funding were received for this article. The authors report no conflicts of interest. The Journal of Craniofacial Surgery: March 2015 - Volume 26 - Issue 2 - p e81-e84 doi: 10.1097/SCS.0000000000001286 Buy Metrics Abstract Purpose The objective of this study was to present a functional surgery for retrieval of displaced root fragments from the maxillary sinus while preserving the alveolar bone. Materials and Methods Twenty-one patients with associated root fragments displaced into the maxillary sinus after tooth extraction were collected and reviewed retrospectively. All patients included in the study were subjected to surgical removal of the displaced root by the use of piezosurgery. In case the root fragment was barely detectable, endoscopy would be helpful. Results Eleven roots were removed via small windows and 10 roots via large windows. Endoscopy was used in 2 patients. Granulomatous tissues were found around 6 root fragments, and cyst formation was found in 1 patient. Only 1 patient had sinusitis temporarily. No patients developed complications such as facial paresthesia, facial asymmetry, or infection. Conclusions The functional surgery for the retrieval of a displaced root from the maxillary sinus is recommended owing to quick recovery, preservation of alveolar bone, and minimal complications. © 2015 by Mutaz B. Habal, MD.