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Volume 14 , Issue 4
July/August 1999

Pages 549556

Augmentation Grafting of the Maxillary Sinus and Simultaneous Implant Placement in Patients with 3 to 5 mm of Residual Alveolar Bone Height

Michael Peleg, DMD, Ziv Mazor, DMD, Arun K. Garg, DMD

PMID: 10453671

This study assessed the efficacy of augmentation grafting of the maxillary sinus with simultaneous placement of dental implants in patients with less than 5 mm of alveolar crestal bone height in the posterior maxilla prior to grafting, although the procedure has traditionally been contraindicated based on empirical data. A total of 160 hydroxyapatite-coated implants was placed into 63 grafted maxillary sinuses in 63 patients whose crestal bone height in this region ranged from 3 to 5 mm. Patients were followed for 2 to 4 years after the placement of definitive prostheses. There were no postoperative sinus complications. Following uncovering of the implants at 9 months after surgery, there was no clinical or radiographic evidence of crestal bone loss around the implants. Histologic examination of bone cores from the grafted sites revealed successful integration and a high degree of cellularity. All patients maintained stable implant prostheses during follow-up. These findings indicate that the single-step procedure is a feasible option for patients with as little as 3 mm of alveolar bone height prior to augmentation grafting, utilizing hydroxyapatite-coated implants and autogenous bone. (Int J Oral Maxillofac Implants 1999;14:549556) Key words: atrophic maxilla, bone graft, dental implants, sinus augmentation, sinus mucosa

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