Fig. 1. Preoperative panoramic radiograph. The implants in the maxillary right second premolar and second molar regions were affected with severe peri-implantitis, and the implant in the maxillary right first molar region exhibited osseointegration failure and was displaced into the maxillary sinus cavity.

J Korean Assoc Oral Maxillofac Surg 2023;49:297~303
https://doi.org/10.5125/jkaoms.2023.49.5.297

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