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International Journal of Dentistry
Volume 2012, Article ID 737262, 7 pages
Research Article

Influence of Material Properties on Rate of Resorption of Two Bone Graft Materials after Sinus Lift Using Radiographic Assessment

1Department of Oral Surgery, Faculty of Dental Medicine, Saint Joseph University, P.O. Box 17-5208, Beirut 1104-2020, Lebanon
2Department of Periodontology, Faculty of Dental Medicine, Saint Joseph University, P.O. Box 17-5208, Beirut 1104-2020, Lebanon
3Periodontology Department, Faculty of Dentistry, Beirut Arab University, P.O. Box 115020 Rial el Solh, 1107 Beirut, Lebanon
4Dental Biomaterials Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
5Research Department, School of Dental Medicine, Lebanese University, P.O. Box 4 Hadath, Lebanon

Received 25 May 2012; Accepted 24 June 2012

Academic Editor: Silvio Taschieri

Copyright © 2012 Fawzi Riachi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. The aim of this study was to investigate the influence of chemical and physical properties of two graft materials on the rate of resorption. Materials and Methods. Direct sinus graft procedure was performed on 22 patients intended for implant placement. Two types of graft materials were used (Bio-Oss and Cerabone) and after 8 months healing time the implants were inserted. Radiographic assessment was performed over the period of four years. Particle size, rate of calcium release, and size and type of crystal structure of each graft were evaluated. Results. The average particle size of Bio-Oss (1?mm) was much smaller compared to Cerabone (2.7?mm). The amount of calcium release due to dissolution of material in water was much higher for Bio-oss compared to Cerabone. X-ray image analysis revealed that Bio-Oss demonstrated significantly higher volumetric loss (33.4??3.1%) of initial graft size compared to Cerabone (23.4??3.6%). The greatest amount of vertical loss of graft material volume was observed after one year of surgery. Conclusion. The chemical and physical properties of bone graft material significantly influence resorption rate of bone graft materials used for sinus augmentation.