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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 13 (1998), No. 6     15. Dec. 1998
Int J Oral Maxillofac Implants 13 (1998), No. 6  (15.12.1998)

Page 866-873


Short-Term Healing Following the Use of Calcium Sulfate as a Grafting Material for Sinus Augmentation: A Clinical Report
Pecora, Gabriele E. / Leonardis, Dario De / Rocca, Carlo Della / Cornelini, Roberto / Cortesini, Claudio
Because of the frequent lack of bone in the posterior maxilla, sinus augmentation has become a commonly practiced treatment modality. Many different materials have been used for augmenting the sinus, and the ideal graft is yet to be found. The present article reports the results of sinuses grafted with calcium sulfate in 2 patients. Bone biopsies were harvested 9 months after the augmentation procedure. In the first patient, 3 titanium threaded-cylinder implants were placed in the grafted area after 9 months, while in the second, 1 acid-etched, screw-shaped titanium implant was placed simultaneously with the graft. Light microscopic evaluation revealed new bone formation with ongoing remodeling and progressive lamellar maturation in the specimens. No remnants of the alloplastic material were detectable in any section, either within the bone or in the medullary tissue. When reevaluated at the uncovering procedure, the implants were radiographically and clinically judged to be osseointegrated. These observations suggest that, when used in the appropriate form and with the proper technique, calcium sulfate is a promising graft material for sinus augmentation, producing adequate quantity and quality of new bone for implant placement.

Keywords: bone apposition, bone grafts, bone substitute, calcium sulfate, maxillary sinus