Dimensional Changes Following Lateral Wall Sinus Augmentation Without Concomitant Implant Placement Using a Composite Bone Graft

The International Journal of Oral & Maxillofacial Implants
Eli E MachteiJacob Horwitz

Abstract

To evaluate changes in sinus dimensions immediately postoperatively and 1 year later using a composite of bovine-derived xenograft and autogenous bone for lateral bone augmentation of the maxillary sinus. Patients who underwent lateral wall sinus augmentation procedures without concomitant implant placement were considered for this retrospective analysis if they had three consecutive panoramic radiographs: pretreatment (T0), immediately after lateral wall sinus augmentation (T1), and approximately 1 year postoperatively (T2). Eighteen subjects aged 47 to 69 years were included. The surgical protocol included grafting with a composite of bovine-derived xenograft and autogenous bone (9:1 ratio). Digital panoramic radiographs were transferred into measurement software, and the following measurements were performed: (1) vertical distance from the alveolar crest to the height of the augmented material, (2) sagittal area of the grafted area, and (3) vertical distance from the alveolar crest to the roof of the maxillary sinus. All measurements were performed by one examiner. Double measurements were performed in nine patients at T2, and the calculated Cronbach's alpha statistic was very high (.9658 to .9882). The mean overall sinus sa...Continue Reading

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