Fresh-frozen homologous bone in sinus lifting: histological and radiological analysis.

Autor:	Albanese M; Department of Surgery, Dentistry, Pediatrics and Gynecology, G. B. Rossi Polyclinic, University of Verona, Verona, Italy., Zotti F; Department of Surgery, Dentistry, Pediatrics and Gynecology, G. B. Rossi Polyclinic, University of Verona, Verona, Italy - francesca.zotti@univr.it., Lanaro L; Department of Surgery, Dentistry, Pediatrics and Gynecology, G. B. Rossi Polyclinic, University of Verona, Verona, Italy., Trojan D; Tissue Bank Foundation ONLUS, Treviso, Italy., Paolin A; Tissue Bank Foundation ONLUS, Treviso, Italy., Montagner G; Tissue Bank Foundation ONLUS, Treviso, Italy., Iannielli A; Private Practitioner, Rovereto, Trento, Italy., Rodella LF; Section of Anatomy and Pathophysiology, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy., Nocini PF; Department of Surgery, Dentistry, Pediatrics and Gynecology, G. B. Rossi Polyclinic, University of Verona, Verona, Italy.
Jazyk:	angličtina
Zdroj:	Minerva stomatologica [Minerva Stomatol] 2019 Oct; Vol. 68 (5), pp. 226-235.
DOI:	10.23736/S0026-4970.19.04192-X
Abstrakt:	Background: The aim of this study was to evaluate radiological and histological characteristics of fresh-frozen homologous bone as grafting material for maxillary sinus floor augmentation. Radiological, histological and clinical evaluations were made. Methods: Twenty-three patients with a 2 mm to 6 mm alveolar ridge height in the posterior maxilla have been enrolled. Unilateral or bilateral sinus floor augmentations were performed with fresh frozen morcelized homologous bone. Together with implant placement, 7 months after surgery, a bone core was harvested for histological analysis. Radiological measurements were obtained by superimposition of CT scans carried out at the surgery time and six months later. A total of 93 implants were positioned. Results: A mean (±SD) increase in mineralized tissue height of 10.74±2.82 mm was noticed by comparing the CT scans. Histological analysis revealed the presence of newly formed bone in the grafted sites. The follow up period after the prosthetic load ranged from 8 to 31 months. One implant failure occurred. Conclusions: Fresh frozen homologous bone seems to have a good healing pattern and to be a successful and steady grafting material for the treatment of maxillary ridge atrophy. It might be considered a valid alternative to autologous bone in sinus floor augmentation procedures.
Databáze:	MEDLINE
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