Case Summary 🔎 Patient Information •Age/Gender: 53-year-old, Male •Past Medical History: History of Hypertension under medication •Drug allergy: None •Chief complaint: "I have the missing teeth on the upper left area." Introduction This case involves a 53-year-old male patient with missing maxillary left posterior teeth (#24, #25, and #26). Crestal sinus lifting was performed using the S-reamer from the SCA kit. At sites #24 and #25, implants were placed without bone graftin