J Korean Assoc Maxillofac Plast Reconstr Surg.  2011 May;33(3):249-255.

Clinical Evaluation of Simultaneous Implants Placement Following Augmentation of the Maxillary Sinus with Deproteinized Bovine Bone

Affiliations
  • 1Department of Dentistry Graduate School, Kyungpook National University, Korea.
  • 2Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University, Korea. kimcs@knu.ac.kr

Abstract

PURPOSE
Placement of endosseous implants in the atrophic maxilla is often restricted because of the lack of supporting bone. In this article, augmentation of the maxillary sinus floor with deproteinized bovine bone to enable insertion of endosseous implants is described. The technique is aimed at providing a cortical layer on top of the graft to ensure a reliable seal of the maxillary sinus and to achieve optimal stability of the bone graft in case of simultaneously placement of dental implants.
METHODS
The procedure was used in 200 patients (839 implants), using deproteinized bovine bone. The mean follow-up was 28.5 months. No inflammation of the bone grafts nor of the maxillary sinus occurred. The patients received implant supported overdentures or bone-anchored bridges.
RESULTS
The survival rate of implant restoration of this study was 97.6%. The total average of marginal bone loss in radiographs was 0.20+/-0.38 mm. Insufficient primary stability, bony quality, and infection were thought to be associated factors in the failed cases.
CONCLUSION
This study documented that deproteinized bovine bone, when used as a grafting material for augmentation of the sinus floor, may lead to proper osseointegration of a endosseous implant.

Keyword

Sinus augmentation; Endosseous implant; Deproteinized bovine bone
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