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Maxillary sinus floor augmentation using bioactive glass granules and autogenous bone with simultaneous implant placement
Author(s) -
Cordioli Giampiero,
Mazzocco Carlo,
Schepers Evert,
Brugnolo Enzo,
Majzoub Zeina
Publication year - 2001
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1034/j.1600-0501.2001.012003270.x
Subject(s) - maxillary sinus , dentistry , bioactive glass , implant , sinus (botany) , medicine , orthodontics , materials science , surgery , biology , botany , genus
This clinical study was undertaken to: 1) evaluate the use of bioactive glass Biogran TM combined with autogenous bone as grafting material for maxillary sinus augmentation with simultaneous implant placement using radiography and histology; and 2) document the short‐term post‐loading success of implants inserted in sinus cavities augmented with this material. Unilateral or bilateral sinus augmentation was performed in 12 patients with 3–5 mm of alveolar crestal bone height in the posterior maxilla prior to grafting. The sinuses were grafted with bioactive glass mixed in a 4:1 ratio with autogenous bone. Simultaneously, 2–3 threaded titanium implants were inserted into the augmented sinuses. Second stage surgery was carried out 9 to 12 months post implantation. At abutment connection, 10 core biopsy specimens were taken from different grafted sites and evaluated histologically. All 27 implants were clinically stable at second stage surgery. A mean increase in mineralized tissue height of 7.1±1.6 mm was evident when comparing the pre‐surgical CT scans with those performed 9–12 months following the sinus augmentation procedure. Evaluation of the cores yielded a mean of 30.6±5.7% of bone tissue in the grafted sites. One implant failed during the prosthetic phase while the remaining 26 implants were stable 12 months post loading. This study suggests that Biogran TM /autogenous bone graft combination used in one‐stage sinus augmentation yields sufficient quality and volume of mineralized tissue for predictable simultaneous implant placement in patients with 3–5 mm of bone height prior to grafting.