title: Effectiveness of fresh frozen and cryopreserved homologue iliac crest grafts used in sinus lifting: a comparative study.
abstract: In the last decade, several investigators have reported that autologous and homologous fresh frozen bones (FFB) are effective materials to restore alveolar ridges previous to insert dental implants. Recently we have used cryopreserved homologue grafts (CFFB). Here we reported a retrospective comparative study between implants inserted in FFB and CFFB evaluate their clinical outcome. Patients were treated with a split mouth scheme for bone grafting with FFB and CFFB and spiral family implants (SPI) were inserted in the same surgical time. Several variables (patient, grafts, anatomic site, implant, prosthetic restoration) were investigated. Implant' failure and peri-implant bone resorption were considered as predictor of clinical outcome. A total of 84 SFIs were inserted in 12 patients. Implants were inserted to replace 8 incisors, 4 cuspids, 31 premolars and 41 molars. The mean follow-up was 14 months. Three out of 84 implants was lost (i.e. survival rate SVR = 96.4%) and no differences were detected among the studied variables. Similar result was obtained by analyzing the crestal bone resorption around implant' neck (i.e. success rate). FFB and CFFB have high and comparable survival and success rate. Implants inserted with one step surgical procedure in native (i.e. not grafted) bone, FFB and CFFB have similar clinical outcome.
authors.affiliation: Department of Maxillofacial Surgery, Civil Hospital, Castelfranco Veneto, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Viscioni
authors.forename: Maurizio
authors.initials: M
authors.lastname: Franco
authors.forename: Adolfo
authors.initials: A
authors.lastname: Paolin
authors.forename: Elisa
authors.initials: E
authors.lastname: Cogliati
authors.forename: Maura
authors.initials: M
authors.lastname: Callegari
authors.forename: Ilaria
authors.initials: I
authors.lastname: Zollino
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Sollazzo
authors.forename: Francesco
authors.initials: F
authors.lastname: Carinci
mesh_terms: D000328:Adult; D015925:Cryopreservation; D003758:Dental Implantation, Endosseous; D019232:Dental Restoration Failure; D005260:Female; D005500:Follow-Up Studies; D005629:Frozen Sections; D006801:Humans; D007085:Ilium / Q000637:transplantation*; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D059546:Sinus Floor Augmentation / Q000379:methods*; D014057:Tomography, X-Ray Computed; D014184:Transplantation, Homologous