Sinus floor elevation from palatal approach with simultaneous implant placement : a case report

Background: In traditional maxillary sinus lift elevation with simultaneous implant placement, lateral window osteotomy is commonly employed. However, due to specific anatomical considerations, such as the thickness of the buccal bone wall, a palatal approach with simultaneous implant placement may be preferred in some cases. Case presentation: A 48-year-old male patient required implantation and restoration in the left upper posterior region. Preoperative cone-beam computed tomography (CBCT) revealed insufficient vertical bone height in the posterior maxillary region, which required maxillary sinus elevation surgery to treat. Given that the lateral wall of the maxillary sinus was thicker than the palatal wall and the alveolar crest was sufficiently wide, we opted for a palatal approach, using the DASK kit for maxillary sinus osteotomy, with simultaneous implant placement. Postoperative CBCT confirmed a maxillary sinus elevation height of 10 mm, with bone graft materials adequately surrounding the implants. Additionally, postoperative swelling was minimal. Conclusions: The palatal approach for maxillary sinus elevation with simultaneous implant placement is feasible under specific anatomical conditions and demonstrates satisfactory outcomes.