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

Carlo Maiorana, Pier Paolo Poli, Andrea Enrico Borgonovo, Davide Rancitelli, Anna Chiara Frigo, Stefano Pieroni, Franco Santoro

Research output: Contribution to journalArticlepeer-review

Abstract

INTRODUCTION:: The aim of this study was to evaluate the outcome of fresh-frozen bone allografts in preprosthetic surgery for implant placement purposes. MATERIALS AND METHODS:: The cohort comprised 45 patients treated with fresh-frozen bone block grafts and dental implants. Clinical and radiological evaluations were performed to evaluate the survival rate. The data were statistically analyzed with the Kaplan-Meier estimator to assess the influence of possible predictors of implant failure on survival. RESULTS:: Overall, 262 implants were retrospectively analyzed. The survival rate was 90.84% over a mean follow-up of 50 months. Comparing the donor site and the position of the implants, no statistically significant differences could be detected (P = 0.7194 and P = 0.2901, respectively), whereas sex resulted in a marginally statistically significant difference (P = 0.0581). When considering age categorized on the median value (≤55/>55 years), age resulted in a statistically significant difference (P = 0.0340), with higher failures found in older people. CONCLUSION:: Implant loss was strictly related to the lack of primary osseointegration. Female sex and old age were found to be risk factors, which could negatively influence implant survival.

Original languageEnglish
Pages (from-to)400-408
Number of pages9
JournalImplant Dentistry
Volume25
Issue number3
DOIs
Publication statusPublished - 2016

ASJC Scopus subject areas

  • Oral Surgery

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