title: Histomorphometric evaluation of anorganic bovine bone coverage to reduce autogenous grafts resorption: preliminary results.
abstract: Physiologic resorption due to remodeling processes affects autogenous corticocancellous grafts in the treatment of atrophic jawbone alveolar ridges. Such a situation in the past made overgrafting of the recipient site mandatory to get enough bone support to dental implants in order to perform a prosthetic rehabilitation. Anorganic bovine bone, conventionally used to treat alveolar bone deficiencies in implant surgery, showed a high osteoconductive property thanks to its micro and macrostructure very similar to that of human hydroxyapatite. An original technique provides for the application of a thin layer of anorganic bovine bone granules and a collagen membrane on the top of the corticocancellous onlay bone grafts to reduce in a remarkable way the graft resorption due to remodeling. The results of a clinical prospective study and a histomorphometric analysis done on autogenous grafts harvested from the iliac crest showed that the proposed technique is able to maintain the original bone volume of the corticocancellous blocks.
authors.affiliation: Oral Surgery and Implantology, University of Milan, School of Dentistry, IRCSS Cà Granda, Milan, Italy.
authors.forename: Carlo
authors.initials: C
authors.lastname: Maiorana
authors.forename: Mario
authors.initials: M
authors.lastname: Beretta
authors.forename: Giovanni
authors.initials: G
authors.lastname: Battista Grossi
authors.forename: Franco
authors.initials: F
authors.lastname: Santoro
authors.forename: Alan
authors.initials: A
authors.lastname: Scott Herford
authors.forename: Heiner
authors.initials: H
authors.lastname: Nagursky
authors.forename: Marco
authors.initials: M
authors.lastname: Cicciù