Bone-added osteotome sinus floor elevation with simultaneous placement of non-submerged sand blasted with large grit and acid etched implants: a 5-year radiographic evaluation
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Á¤ÁöÈñ ( Jung Jee-Hee ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡ÁÖ°úÇб³½Ç
ÃÖ¼ºÈ£ ( Choi Seong-Ho ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡ÁÖ°úÇб³½Ç
Á¶±Ô¼º ( Cho Kyoo-Sung ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡ÁÖ°úÇб³½Ç
±è⼺ ( Kim Chang-Sung ) - ¿¬¼¼´ëÇб³ Ä¡°ú´ëÇÐ Ä¡ÁÖ°úÇб³½Ç
KMID : 0363020100400020069
Abstract
Purpose: Implant survival rates using a bone-added osteotome sinus floor elevation (BAOSFE) procedure with simultaneous placement of a non-submerged sand blasted with large grit and acid etched (SLA) implant are well documented at sites where native bone height is less than 5 mm. This study evaluated the clinical results of non-submerged SLA Straumann implants placed at the time of the BAOSFE procedure at sites where native bone height was less than 4 mm. Changes in graft height after the BAOSFE procedure were also assessed using radiographs for 5 years after the implant procedure.
Methods: The BAOSFE procedure was performed on 4 patients with atrophic posterior maxillas with simultaneous placement of 7 non-submerged SLA implants. At least 7 standardized radiographs were obtained from each patient as follows: before surgery, immediately after implant placement, 6 months after surgery, every year for the next 3 years, and after more than 5 years had passed. Clinical and radiographic examinations were performed at every visit. Radiographic changes in graft height were calculated with respect to the implant¡¯s known length and the original sinus height.
Results: All implants were stable functionally, as well as clinically and radiographically, during the follow-up. Most of the radiographic reduction in the grafted bone height occurred in the first 2 years; reduction after 2 years was slight.
Conclusions: The simultaneous placement of non-submerged SLA implants using the BAOSFE procedure is a feasible treatment option for patients with severe atrophic posterior maxillas. However, the grafted bone height is reduced during the healing period, and patients must be selected with care.
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Dental implantation;Maxillary sinus;Radiography
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