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The International Journal of Oral & Maxillofacial Implants



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Int J Oral Maxillofac Implants 30 (2015), Nr. 1     21. Jan. 2015
Int J Oral Maxillofac Implants 30 (2015), Nr. 1  (21.01.2015)

Seite 179-183, doi:10.11607/jomi.3614, PubMed:25265126, Sprache: Englisch

Comparative Evaluation of Simultaneous Maxillary Sinus Floor Elevation and Implant Placement with Residual Bone Heights Greater or Less Than 5 mm
Soydan, Sidika Sinem / Cubuk, Secil / Bayrak, Burcu / Uckan, Sina
Purpose: Implants can be inserted simultaneously during sinus floor elevation (SFE), or 6 months later, for posterior maxillary rehabilitation. The residual bone height (RBH) is a major factor that affects the type of surgical procedure that will be performed. The aim of this study was to compare the survival rates of implants inserted during one-stage SFE with two different RBHs (< 5 mm and ≥ 5 mm).
Materials and Methods: This study consisted of implants inserted into an RBH of either < 5 mm or ≥ 5 mm, and the survival of the implants was assessed according to the clinical symptoms of the patients: pain or tenderness during function (or spontaneously), mobility, depth of probing, exudation history, and radiographic bone loss at the final follow-up appointment. The survival rates of the two groups were statistically compared using the Fisher exact test.
Results: Fifty-nine consecutive patients (29 women and 30 men) undergoing a onestage sinus elevation procedure simultaneously with implant insertion were included in this study. Fifty-one implants were placed in the study group (RBH: 1 to 4.9 mm), and 31 implants were placed in the control group (RBH: 5 to 8 mm). The survival rate of the implants in the study group was 94.2% at the 5.4-year follow-up and 95.8% in the control group at the 7.9-year follow-up. There was no statistically significant difference between the groups in terms of the implant survival rate (P = .785).
Conclusion: The results of this study suggest that SFE with simultaneous implant placement in patients with an RBH < 5 mm can be accomplished, and that the survival rate is similar to that of the one-stage SFE protocol with an RBH of > 5 mm.

Schlagwörter: atrophic maxilla, lateral sinus elevation, one-stage sinus elevation, sinus floor augmentation, sinus floor elevation
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