Osseotite implants inserted into fresh frozen bone grafts

Abstract

Background In the last decade, several investigators have reported that double etched implants have achieved excellent results. However, no report regarding double etched implants inserted into fresh frozen bone is available. Aims We planned to perform a retrospective study on double etched implants inserted into fresh frozen bone grafts. Setting and design 28 patients (17 females and 11 males with a median age of 52 years) were operated on and 114 double etched implants inserted. Implant diameter and length ranged from 3.25 to 5.0 mm and from 10.0 to 15 mm, respectively. Implants were inserted to replace 14 incisors, 5 cuspids, 47 premolars and 48 molars. Results Since only 4 out of 114 implants were lost (i.e. Survival Rate SVR = 96.5%) and no statistical differences were detected among the studied variables. The type of prosthetic restoration (i.e. fixed prostheses) correlated with a statistically significant lower delta Implant Abutment Junction (i.e. reduced crestal bone loss) and thus a better clinical outcome. Conclusion Double etched implants inserted into fresh frozen bone had a high survival and success rate similar to those reported in previous studies of two-stage procedures in non-grafted bone, although a higher marginal bone loss has to be expected when removable prosthetic restorations are used.

Long-Term Retrospective Evaluation of Dental Implants Placed in Resorbed Jaws Reconstructed With Appositional Fresh-Frozen Bone Allografts

“…However, rather than aging itself, the specific nature of the disease process, such as osteoporosis, and local bone quality and quantity at the implant site, mostly related to aging, may be considered more important for successful dental implant treatment. 28 When the results reported in this study were contrasted with similar retrospective studies, it seemed that the survival rate was not influenced by sex 19,20 ; furthermore a better outcome for female patients was also reported. 16 In our opinion, because of a higher risk of implant failure associated with osteoporosis and aging, these patients might best be served preoperatively by appropriate referral and endocrinological examinations.…”

“…14,19 Accordingly, this study was designed to assess the influence of various risk indicators on the failure rate of implants placed in sites augmented with FFB appositional block grafts. To identify possible predictors, a retrospective analysis over 262 dental implants placed in augmented ridges was conducted.…”

“…In agreement to the findings of this study, no statistically significant differences in terms of recipient sites were found. 19 A higher number of patients were enrolled in a subsequent retrospective study by Viscioni et al, in which 23 (17.3%) implants were placed in the mandible and 110 (82.7%) were inserted in the maxilla. No statistically significant differences between the 2 jaws or among tooth sites could be detected, supporting the results reported in this study.…”