Sinus floor elevation: comparison of the presurgical ridge height of different techniques - a retrospective analysis.

Kremer Hovinga, Urs; van Enckevort, Stina-Leena; Enkling, Norbert; Katsoulis, Joannis; Mericske, Regina (2013). Sinus floor elevation: comparison of the presurgical ridge height of different techniques - a retrospective analysis. e-Journal of Dentistry, 4(4), pp. 485-494. e-Journal of Dentistry

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Purpose: Radiographic evaluation of the vertical presurgical ridge height (PRH) of implants, placed using the
transcrestal or lateral window sinus floor elevation (SFE) technique in edentulous and partially dentate patients.
The 5-year implant survival rate and the prosthetic restoration following the SFE procedure were also evaluated.

Methods: Radiographs of 83 tapered implants placed in 53 patients were available for analysis. 31 implants were placed by the transcrestal and 52 were placed by the lateral window technique. In the lateral window technique 21 implants were placed simultaneously, 31 in a staged approach. The PRH, the implant survival rate after five years and the prosthetic restoration were evaluated with respect to the chosen SFE procedure.

Results: The PRH was significantly higher for the transcrestal than both lateral window techniques, mean values: 8.0 ± 2.7 mm (transcrestal); 4.2 ± 2.6 mm (lateral simultaneous); 4.5 ± 2.8 mm (lateral staged). There was no significant difference of PRH between the edentulous and partially dentate patients. All loaded implants were stable, resulting in a 100% implant survival rate after 5 years. There was a small overproportion of single crown restorations in the transcrestal SFE technique group.

Conclusion: This study confirms that the transcrestal technique is chosen, when a higher PRH is available. The
choice of a simultaneous or staged lateral window approach is mainly dependent on the expected primary stability of the implant and not only on the PRH. SFE procedures are a safe and predictable treatment option to place implants in the vertical atrophic maxilla.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology

UniBE Contributor:

Kremer Hovinga, Urs, Enkling, Norbert, Katsoulis, Joannis, Mericske, Regina


600 Technology > 610 Medicine & health




e-Journal of Dentistry




Eveline Carmen Schuler

Date Deposited:

16 Mar 2015 16:10

Last Modified:

05 Dec 2022 14:43

Uncontrolled Keywords:

sinus floor elevation, transcrestal technique, lateral window technique, presurgical ridge height, prosthetic restoration.




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